1. science
2. ecology
3. pollution

CARPC AGENDA COVER SHEET
Executive Summary
July 10, 2008
Item 7
Re: Consideration of Resolution CARPC No. 2008-17 amending the Dane County Land
Use and Transportation Plan and the Dane County Water Quality Plan by revising
the Mt. Horeb Urban Service Area boundary and environmental corridors in the
Village of Mt. Horeb, Town of Springdale, and Town of Blue Mounds
Decision Items:
1. Consideration of Resolution CARPC No. 2008-17
Staff Comment on Item: The proposed amendment to the Mount Horeb Urban Service Area
would add 304 acres on the northeast side of the Village of Mount Horeb, south of Highway S
and north of Highway ID. The area to be added is in the Village of Mount Horeb (14.4 acres),
the Town of Blue Mounds (17.1 acres) and the Town of Springdale (308.5 acres).
The addition is the area of the Village of Mount Horeb Northeast Neighborhood Plan that calls
for 73.4 acres of residential development, 11.1 acres of commercial development, 17 acres for a
potential school site and 136.8 acres of environmental corridor. The environmental corridors
include stormwater management areas, parks, woodlands, steep slopes, open space and the
Military Ridge Trail. An additional 58.7 acres along the eastern edge and in the southeastern
corner of the amendment area is planned to remain as agricultural, rural or vacant land.
Because there is no information regarding the development that would occur in the agricultural
use areas, staff is unable to evaluate the impact of such development on the water resources of
the area. Therefore, staff recommends that these agricultural areas be removed from the
amendment.
The residential component of the proposal includes 62.6 acres of single family residential
development, 0.3 acres of two-family residential use, and 10.5 acres of mixed residential use.
A maximum of 408 housing units are proposed, the maximum number that can be
accommodated with the current capacity of the pumping stations serving the area. The
residential units area estimated to accommodate a population of 1,038 including an estimated
216 school-aged children.
The commercial component calls for general business in the southern portion of the
amendment area along CTH ID and Telemark Parkway, and neighborhood business near the
intersection of STH 78 and CTH S.
Staff Recommendation: It is critical that the Village address the shortcomings of its
stormwater management and stream stewardship responsibilities if it is to continue to expand
into the highly sensitive watersheds surrounding it. Therefore, staff can only recommend
approval of the proposed amendment (with the removal of the agricultural use areas) if the
following conditions are fulfilled by the Village of Mount Horeb in addition to the plans and
services which have been submitted:
Page 1 of 3
1. In cooperation with the WDNR, DCL&WRC, CARPC, and the Watershed Association
develop an acceptable regional stormwater treatment and management train to treat
and manage the runoff currently discharging into Schlapbach Creek from the developed
portions of the Village of Mount Horeb. This train should capture sediment and
attenuate the flow spikes and restore to the extent possible the original hydrologic
regime of the stream. Such restoration should be compatible with brook trout habitat to
the extent feasible. This regional facility is independent of the proposed development,
but should be constructed at least concurrent with other stormwater facilities in the
amendment area.
2. Develop a comprehensive stormwater management plan in collaboration with the
WDNR, and include clear, timely, and concrete implementation steps for this plan. The
stormwater management plan should be developed with the purpose of assisting in the
restoration of receiving streams and their habitats, and preserving the hydrology of the
headwater streams with potential for impact by the Village.
3. Develop and implement an aggressive construction erosion ordinance well beyond the
County ordinance (7.5 tons/acre/year). Include the use of polymers in addition to other
erosion control measures for added protection.
4. Submit a detailed stormwater management plan for CARPC and DCL&WRD staff review
and approval prior to land disturbing activities in the area. The stormwater
management plan should include the following:
o
Maintain the pre-development hydrologic regime (rates and volumes) by maximizing
infiltration, minimizing impervious surfaces, and through detention.
o
Include thermal sinks in outfall structures to reduce the discharge temperature to
levels protective of brook trout.
o
Provide water quality treatment to mitigate the impacts of development to the
maximum extent feasible and at a minimum capture of 80% of sediment load for up
to a 2 year storm (and preferably exceeding this level of treatment).
o
Prevent increased off-site flooding and erosion.
o
Provide aggressive construction erosion control practices and enforcement through
Village Engineer and properly trained Building Inspector.
o
Install stormwater facilities prior to other land disturbing activities in the area.
o
Stormwater facilities to be publicly managed (privately owned facilities to have
easements and legally enforceable maintenance agreement with Village).
5. Develop a tree and vegetation protection and restoration plan for the areas in
environmental corridors, with special emphasis for stabilizing stream buffer areas and
preventing erosion.
6. The proposed environmental corridors shall be substantially retained. Any major
encroachment into the corridors is presumed to have adverse water quality impacts due
to the presence of steep slopes, stream buffers, and woodlands.
It is also recommended that the Village of Mount Horeb pursue the following:
Page 2 of 3
1. Consider a narrower pavement width for Brookwood Drive extended in order to reduce
speeding. It is likely that there will be few, if any, parked cars on the street most of the
time yet sufficient pavement to accommodate four lanes of traffic. Alternatively, the
parking and bike lanes will need to be striped and other traffic calming measures
employed.
2. Re-consider the proposed multi-use path along the south side of CTH S. Paths next to
urban streets pose operational problems at street intersections and often increase the
hazards to bicyclists (See p. 4-3 of WisDOT’s Wisconsin Bicycle Facility Design Manual
(Jan. 2004)). Instead, it is recommended that consideration be given to using the
planned local streets parallel to CTH S with a connecting path through the school site.
The proposed location of the path crossing of STH 78 adjacent to the roundabout is also
not recommended for safety reasons. Providing a crossing at Manor Drive would be
preferable. There are also On-Road Bike Facility Improvements needed on CTH S and
Business 18/151.
3. In collaboration with the WDNR, USGS, Dane County, and CARPC, initiate a
comprehensive ecosystem study of the headwater areas of the streams surrounding the
Mount Horeb Urban Service Area. These study areas are the following:
o
Schlapbach Creek (to confluence with Sugar River),
o
West Branch Sugar River (portion in Town of Blue Mounds),
o
Mount Vernon Creek and its tributaries (portion of Fryes Feeder, Deer Creek, and
Mount Vernon Creek in the Town of Springdale),
o
German Valley Branch (to confluence with Blue Mounds Branch),
o
Moen Creek and Elvers Creek (to confluence with Bohn Creek), and
o
Sugar River (portion in the Town of Cross Plains to confluence with Schlapbach
Creek).
The purpose of this comprehensive study is to assess the impacts of development on stream
ecosystems, and to develop and implement conservation plans for the watersheds to ensure the
protection of these streams as viable, high quality, cold water ecosystems. Future plans for
growth in these portions of the noted watersheds should be with the full consideration of the
findings of this comprehensive study and the conservation plans for each of the streams.
Materials
1.
2.
3.
Presented with Item:
Staff Analysis dated July 3, 2008
Draft Resolution CARPC No. 2008-17
Letter dated July 3, 2008, e-mailed from Stefi Harris
Contact for Further Information:
Kamran Mesbah, Deputy Director
266-9283
[email protected]
Page 3 of 3
7/3/08
Amending the Dane County Land Use and Transportation Plan and the Dane County
Water Quality Plan, by Revising the Mount Horeb Urban Service Area Boundary and
Environmental Corridors in the Village of Mount Horeb
1. Applicant: Village of Mount Horeb
2. Description of Proposal
The proposed amendment to the Mount Horeb Urban Service Area is an addition of 304
acres located on the northeast side of the Village of Mount Horeb, south of Highway S and
north of Highway ID, and is in the Town of Springdale (308.5 acres), the Town of Blue
Mounds (17.1 acres), and the Village of Mount Horeb (14.4 acres). The proposed
amendment is the area of the Village of Mount Horeb’s Northeast Neighborhood Plan and
is planned for 73.4 acres of residential development, 11.1 acres of commercial
development, 37.6 acres of right-of-way, 17 acres for a possible school site, 136.8 acres in
environmental corridors for stormwater management areas, parks, open space and the
Military Ridge Trail. The plan includes 5.4 acres of neighborhood park and open space not
included in environmental corridors. An additional 58.7 acres, primarily along the eastern
edge and in the southeastern corner of the amendment area, is planned to remain as
agriculture, rural or vacant land (see Maps 1, 2, and 3).
The residential component of the proposal includes single family, two family and mixed
residential development. The mixed residential development may include multi-family
units for the elderly and disabled. Single family residential is planned for 62.6 acres and
is the predominant use in the area. Two-family residential use is planned for 0.3 acres,
and Mixed residential is planned for 10.5 acres. Although the public hearing notice stated
that a total of 480 housing units were proposed, the proposal actually calls for a
maximum of 408 residential units, the maximum number that can be accommodated
with the current capacity of the pumping stations serving the area. The 408 residential
units are estimated to accommodate a population of 1,038 including an estimated 216
school-aged children.
Table 1: Urban Service Area - Village of Mount Horeb
Proposed
Land Use
Residential
Residential Total
Density (units/acre) Total
% of
Proposal MHUSA ( ac.) Total
5.7
5.7
4.0
Housing
Units
No. of
No. of
Existing
Persons Students Develop. Corridor
408
1,036
216
2.3
0.0
71.1
73.4 21.6%
408
1,036
216
2.3
0.0
71.1
11.1
Institutional
17.0
Street R-O-W
37.6 11.1%
8.4
Stormwater Mgmt.
16.0
3.3%
7.1
4.7%
Parks and Open Space
126.2 37.1%
Agriculture/rural/Vacant
58.7 17.3%
TOTAL
able
73.4 21.6%
Commercial
Source: Village of Mount Horeb Submittal and CARPC
Environ. Develop-
340.0 100%
16.0
120.8
408
1,036
216
17.8
136.8
192.5
Mt Horeb
USA
S
Town of
Springdale
JG
Hollfelder Drive
Witte Road
Get z Road
Town of
Blue Mounds
78
78
ID
S
151
18
Amendment
Area
92
Road
Wally
Ma
no
li
Mi
y
t ar
R
e
idg
Tra
rD
riv
e
il
R
ott
Sc
Shenandoah Way
Manor Drive
d
oa
Upper Sugar River/
Schlapbach Creek
Cox Road
Village of
Mt Horeb
E Lincoln Street
Golf Bowl Road
Business 18 & 151
ID
Bu
s in
e ss
18
&
15 1
ID
Rid
gev
E Garfield Street
iew
R
oad
West Sugar River/
Mt. Vernon Creek
18
Map 1
Amendment to the
Mt Horeb Urban Service
Area in the Village of Mt
Horeb, Town of Blue
Mounds and Town of Springdale
18
10 June 2008
Proposed Urban Service Area Boundary
Existing Urban Service Area Boundary
Service Area to be Added (340.0 acres)
Existing Environmental Corridor
Environmental Corridor to be Added (136.8 acres)
Incorporated Area
Watershed Boundary
0
900
Feet\
Prepared by staff
of the CARPC.
Town of
Springdale
Hollfelder Drive
Witte Road
Get z Roa d
Town of
Blue Mounds
78
S
Roa d
Wally
Ma
no
rD
Manor Drive
tar
y R
Tra
il
R
ott
Sc
Shenandoah Way
li
Mi
e
idg
riv
e
d
oa
Upper Sugar River/
Schlapbach Creek
Cox Road
Village of
Mt Horeb
E Lincoln Street
Golf Bowl Road
Business 18 & 151
ID
Bu
si n
es s
18
&1
51
ID
Rid
gev
i ew
E Garfield Street
Ro
ad
West Sugar River/
Mt. Vernon Creek
18
Map 2 2005 Aerial Photograph
Amendment to the
Mt Horeb Urban Service
Area in the Village of Mt
Horeb, Town of Blue
Mounds and Town of Springdale
18
11 June 2008
Proposed Urban Service Area Boundary
Existing Urban Service Area Boundary
Environmental Corridor to be Added (136.8 acres)
Village of Mt Horeb
Watershed Boundary
0
900
Feet\
Prepared by staff
of the CARPC.
Town of
Springdale
Hollfelder Drive
Witte Road
Get z Roa d
Town of
Blue Mounds
78
S
St
Ke
v ig
s
e
ll
et
re
Roa d
Wally
n
hell
Mic
ch
iD
e
nd
Li
a Road
li
Mi
e lle
r
e te
Ro
e
idg
Tra
riv
e
il
ad
d
wo o
East
d
Pe
ri m
oa
ic h
tR
M
y R
tar
ot
Sc
Fi
el
an e
Dr
i ve
t
Stree
J ohn s
riv
S tr eet
id
Re
et
re
St
r ts
iL
ck
Vi
Daniel Pass
Driv
e
e St
reet
ia
A la n
Br
Du
Ma
no
rD
Manor Drive
dC
y
Wa
F ox Ru
n
o ur t
51
ar k
ID
l
Te
ro
lT
e
ce
G
g
a
Go
lf
ve
me
m
Lil le
e
an
rL
m
h am
e
e
an
rL
Rid
gev
i ew
Ro
ad
18
Li l
leh
ri
D
Amendment to the
Mt Horeb Urban Service
Area in the Village of Mt
Horeb, Town of Blue
Mounds and Town of Springdale
&1
em
Ty
Pa
ss
18
a
rr
Map 3 Planned Land Use
Park
way
ve
D ri
Fjo
rd
Bu
si n
es s
r ie
E Garfield Street
V iew D riv e
E Lincoln Street
ID
ood
Village of
Mt Horeb
Brookw
Cox Road
Golf Bowl Road
Business 18 & 151
Incorporated Area
Extractive
Single Family
Plan Boundary
Industrial
Transportation
Agriculture
Institutional or Governmental
Two Family
Cemetery
Multi-Family
Under Construction
Commercial Forest
Open Land
Vacant
Commercial Sales or Services
Outdoor Recreation
Water
Communications or Utilities
Right of Way
Woodland
18
13 June 2008
0
900
Feet\
Prepared by staff
of the CARPC.
The commercial component includes an area of general business planned for the southern
portion of the amendment area along CTH ID and Telemark Parkway, and neighborhood
business near the intersection of STH 78 and CTH S. The planned public school site is
located on the north side of the amendment area, along CTH S.
3. Existing Environment
Land Use. The amendment area is in the Town of Blue Mounds, Town of Springdale
and Village of Mount Horeb and is primarily farmland and woodland. The area also
includes the Military Ridge Trail, a 7.1 acre stormwater facility, a utility building and all
or portions of four farmsteads. The following land uses are adjacent to the amendment
area:
North:
East:
South:
West:
Agricultural, Cemetery (Town of Blue Mounds, Town of Springdale)
Agricultural, Woodlands, Open, Military Ridge Trail (Town of Springdale)
Residential (Village of Mount Horeb)
Residential, Commercial, Military Ridge Trail (Village of Mount Horeb)
Natural Resource Features. The proposed amendment area drains directly to
Schlapbach Creek, and the Upper Sugar River approximately three miles downstream.
Both support coldwater fisheries and are designated Exceptional Resource Waters. More
significantly, Schlapbach Creek has the potential to support a brook trout fishery (similar
to Token Creek) and is therefore an extremely valuable resource in the region. Schlapbach
Creek originates in the Village of Mount Horeb. Development in the Village in the
headwaters of the watershed predates the establishment of stormwater standards and
urban runoff from this part of the Village drains to Schlapbach Creek without treatment
or management. The impacts resulting from impervious cover (increased rates and
volumes of flow) are especially harmful to aquatic communities. Scientific studies show a
particularly significant decline in stream quality at relatively low levels of development (0
to 6 percent of watershed in impervious cover, for “sensitive” coldwater streams).
Schlapbach Creek and the Upper Sugar River have both already transitioned to an
“impacted” category (6 to 25 percent of watershed in impervious cover) with additional
reductions in stream quality anticipated as the result of new development. Watershed
Impervious cover was found to be 10.6 percent and 6.2 percent in Schlapbach Creek and
the Upper Sugar River based on year 2000 land use, respectively.
This portion of the region is characterized by shallow dolomitic bedrock. Potential for
infiltration of stormwater is therefore limited. Natural infiltration is low and shallow depth
to fissured bedrock presents potential groundwater contamination problems. In addition,
the site exhibits the dendritic drainage pattern typical of the driftless area of the County,
characterized by steep slopes along the creek and intermittent tributary valleys. Increased
rates and volumes of stormwater can result in increased erosion, sedimentation, and
nutrient loading. Protection of steep slopes and natural vegetation are particularly
important in preventing increased erosion and sedimentation. These have been included
in the environmental corridor located in the central and eastern (downstream) portions of
the project. Extra precautions should be taken so that stormwater is not allowed to
concentrate, and that conveyance channels are stable for all flows. The Military Ridge
Trail crosses east-west through the middle of the site.
The Wisconsin Bureau of Endangered Resources does not indicate the presence of any
endangered aquatic and terrestrial species in Section 7 of the Town of Springdale.
5
The State Historical Society database indicates archaeological inventories conducted in
the vicinity of the amendment area, but not in the area itself. The database also notes a
cemetery located on the north side of CTH S between Getz Road and Witte Road.
Depth to bedrock is less than 10 feet throughout most of the amendment area, and 10 to
50 feet along Schlapbach Creek. The area is underlain by fractured dolomite with the
exception of the eastern end of the Creek where the bedrock is sandstone. Groundwater
is at depths of over 25 feet.
Soils of the amendment area are in the Edmund-Sogn-Port Byron Association,
characterized by excessively drained to moderately well drained, shallow, very shallow,
and deep silt loams that are underlain at a depth of less than 40 inches by dolomite or
silt.
Less than four percent of the soils of the area are prime agricultural soils.
Table 2: Soils Classification
Soil
% of
Area
General Characteristics
Edmund Silt Loam;
EdB2/C2/D2
64
Shallow, well drained soils on uplands. Soils have low fertility and moderately slow
permeability. Poses severe to very severe limitations for development due to dolomite
bedrock at a depth of less than 2 feet. Severe hazard of erosion.
Ashdale Silt Loam;
AsB/C2
10
Deep, well drained soils on colluvial foot slopes at the head of drainageways, and in the
drainageways of ridges on uplands. Soils have high fertility and moderate permeability. Prime agricultural soils
Poses moderate limitations for development due to bedrock at a depth of 3 to 5 feet.
where slopes < 6%
Severe hazard of erosion.
Dunbarton Silt Loam,
eroded; DuC2/E2
8
Shallow, well drained soils on lower and middle side slopes. Soils have low fertility and
moderately slow permeability. Poses severe to very severe limitations for development
due to dolomite bedrock at less than 2 feet. Severe to very severe hazard of erosion.
Radford Silt Loam;
RaA
7
Deep, somewhat poorly drained soils on low bottoms near streams. Soils have high
fertility and moderate permeability. Poses very severe limitations for development due to
low bearing capacity and seasonal high water table.
Huntsville Silt Loam;
HuB
3
Deep, well drained and moderately well drained soils in drainageways and small draws.
Soils have high fertility and moderate permeability. Poses severe limitations for
development due to flooding and very low bearing capacity.
Seaton Fine Sandy
Loam, loamy variant,
eroded; SnC2/D2
3
Deep, well drained soils on lower valley side slopes. Soils have medium fertility and
moderate permeability. Poses moderate to severe limitations for development due to
slope and low bearing capacity. Severe to very severe hazard of erosion.
Troxel Silt Loam; TrB
3
Deep, well drained and moderately well drained soils in drainageways and small draws.
Soils have high fertility and moderate permeability. Poses severe limitations for
Prime agricultural soils.
development due to low bearing capacity and flooding. Moderate hazard of erosion;
control of gullying especially difficult.
New Glarus Silt Loam,
eroded; NeD2
2
Moderately deep, well drained, soils on lower side slopes. Soils have medium fertility.
Permeability is moderate in the upper part and moderately slow in the lower part. Poses
severe limitation for development due to dolomite bedrock at a depth of 2 to 4 feet.
1
Very shallow, excessively drained soils on side slopes. Soils have very low fertility and
moderate permeability. Poses severe to very severe limitation for development due to
dolomite bedrock at a depth of less than 2 feet. Severe to very severe hazard of
erosion.
Sogn Silt Loam;
SoD/E
Source: Soil Survey of Dane County
6
Agricultural Fertility
Town of
Springdale
Hollfelder Drive
Witte Road
Get z Roa d
Town of
Blue Mounds
78
S
Roa d
Wally
Ma
no
rD
Manor Drive
tar
y R
Tra
il
R
ott
Sc
Shenandoah Way
li
Mi
e
idg
riv
e
d
oa
Cox Road
Village of
Mt Horeb
E Lincoln Street
Golf Bowl Road
Business 18 & 151
ID
Bu
si n
es s
18
&1
51
ID
Rid
gev
i ew
Ro
ad
E Garfield Street
18
Map 4 Soil Limitations
Amendment to the
Mt Horeb Urban Service
Area in the Village of Mt
Horeb, Town of Blue
Mounds and Town of Springdale
18
23 June 2008
Prime Farmland (11.9 acres)
Proposed Urban Service Area Boundary
Severe Limitations to Development (297.1 acres)
Existing Urban Service Area Boundary
Municipal Boundary
0
900
Feet\
Prepared by staff
of the CARPC.
Town of
Springdale
Hollfelder Drive
Witte Road
Get z Road
Town of
Blue Mounds
78
S
EdB2
Road
Wally
EdD2
AsC2
EdB2
EdC2
EdC2
TrB
Ma
no
Manor Drive
rD
riv
e
AsB
EdB2
EdB2
AsC2
EdD2
AsB EdB2
EdC2
EdC2
AsC2
EdC2
RaA
NeD2
EdC2
lit
ary
r
e T
DuE2
NeD2
SoD
R
ott
Sc
Shenandoah Way
Mi
g
Rid
SnD2
SnC2
ail
EdC2
AsC2
SoE
DuE2
d
oa
EdB2
EdD2
EdC2
AsC2
DuC2
Business 18 & 151
Cox Road
Village of
Mt Horeb
E Lincoln Street
Golf Bowl Road
AsC2
ID AsC2
HuB
EdC2
AsC2
DpC
AsC2
ID
EdC2
EdB2 DuC2
Rid
gev
iew
R
oad
E Garfield Street
18
Map 5 Soil type
Amendment to the
Mt Horeb Urban Service
Area in the Village of Mt
Horeb, Town of Blue
Mounds and Town of Springdale
18
13 June 2008
Proposed Urban Service Area Boundary
0
900
Existing Urban Service Area Boundary
Municipal Boundary
Feet\
Prepared by staff
of the CARPC.
Witte Road
1200
S
Road
Wally
y
t ar
R
1100
il
R
ott
Sc
12
0
0
d
oa
1100
li
Mi
Tra
riv
e
Shenandoah Way
0
e
idg
rD
1100
Ma
no
Manor Drive
12
0
Hollfelder Drive
Town of
Springdale
1200
78
Get z Road
Town of
Blue Mounds
11
0
0
1100
0
12
0
Cox Road
Village of
Mt Horeb
E Lincoln Street
Golf Bowl Road
Business 18 & 151
ID
Bu
s in
e ss
18
&
15 1
ID
Rid
gev
iew
R
oad
0
0
0
120
0
12
120
0
12
0
E Garfield Street
18
Map 6 Elevation
Amendment to the
Mt Horeb Urban Service
Area in the Village of Mt
Horeb, Town of Blue
Mounds and Town of Springdale
18
23 June 2008
100 Foot Interval
Proposed Urban Service Area Boundary
20 Foot Interval
Existing Urban Service Area Boundary
4 Foot Inverval
Municipal Boundary
0
900
Feet\
Prepared by staff
of the CARPC.
The Village of Mount Horeb
ce
Redu
NORTHEAST
NEIGHBORHOOD PLAN
im
Hollfelder Dr
Getz Rd
Limit
Witte Rd
Speed
78
it
dL
ee
p
eS
uc
LEGEND
d
Re
Work with town of
Springdale to align the
centerline of Brookwood
extended with Witte Road
Planned Land Use
S
Abandon existing
right of way
Private Alley
2
School Site
Reconfigure road to have
access from Brookwood
Dr Extended
Private
Park
Private Alley
Pedestrian
Underpass
2
Stormwater
Service by Brookwood
Pumping Station allows
for up to 294 Residential
Units or equivalent
Stormwater
Private Alley
Abandon
existing
right of way
2
Manor Dr
Park
Br
General Business
Office
General Industrial
Mixed Residential
Two Family Residential
Single Family Residential (Sewered)
Single Family Residential (Rural)
Institutional
Agriculture/Rural/Vacant
Public Open Space
Woodlands
ian
Alan
Dr
Existing Land Use
St
Stormwater
Mil
Schla
pbac
Stormwater
Additional Water
Quality Improvements
itar y
Ridge Tra
il
h Cre
ek
Stormwater
ood
okw
Bro
78
Planned General Business
Planned Neighborhood Commercial
Planned Mixed Residential
Planned Two Family Residential
Planned Single Family Residential
Planned School Site with Playground
Planned Park & Public Open Space
Planned Conservancy, Environmental
Corridor & Woodlands
Dr
Service by Wayside
Pumping Station allows
for up to 134 Residential
Units or equivalent
Fox Run Rd
Stormwater
Existing Stormwater
Planned Stormwater
ID
Existing Major Roads
Exiting Roundabout
Planned Roundabout
Military Ridge Trail
Planned Bike and/or Pedestrian Trails
Tele
m
ark P
kwy
Existing
Stormwater
Current Pump Station Service Areas
Rid
92
gev
iew
Rd
18
151
NOTE: Stormwater management facilities and local road networks illustrated on this plan
are conceptual and for illustrative purposes. For instance, the pattern of local roads
depicted is intended to communicate that the Village will encourage connectivity and
internal flow when evaluating planned transportation improvements. Those illustrated on
this map are not intended to be the precise locations or alignments. The specific local road
network layout and locations of stormwater management facilities will be refined upon
more detailed engineering study prior to, or during preliminary plat development.
Initial planning by Vandewalle &
Associates, preliminary engineering
by Held Engineering Associates Inc..
0'
400'
800'
1600'
2007
Adopted: September 24, 2007
Map 7
Existing Transportation System. The major roadways serving the proposed
amendment area are: County Trunk Highway (CTH) ID, a recently reconstructed fourlane, divided east-west major rural collector; and CTH S, a two-lane east-west major rural
collector.
Neither fixed-route bus transit nor shared-ride taxi service is available within the Village
at the present time. There are currently four state vanpool routes that transport Mount
Horeb area commuters to downtown, the UW-Madison campus, and other Madison area
work sites. The Madison Area Transportation Planning Board’s Rideshare Etc. Program
provides ride-matching services for individuals interested in car-pooling or vanpooling.
Dane County contracts with a private provider, Care Van, for limited group ride service for
the elderly and persons with disabilities. The routes serve trips to nutrition sites, senior
center activities, adult day care, and shopping. The Retired Senior Volunteer Driver
Escort Program (RSVP) uses volunteer drivers to provide individual rides for the elderly,
primarily to medical appointments.
The Military Ridge Trail, a crushed stone bicycle/pedestrian path, runs through the
amendment area, providing a direct route into the Village downtown area. CTH ID was
reconstructed to an urban cross-section with bike lanes. CTH S has paved shoulders that
can accommodate bicyclists, but is still rated as “least suitable” for bicycling due to traffic
volumes and rural speeds. Sidewalk was added to the south side of CTH ID as part of
street reconstruction. CTH S has a rural cross-section without sidewalks. The local
streets in the development adjacent to the amendment area, including Brookwood Drive,
lack sidewalks.
4. Consistency or Conflict With Plans
The Mount Horeb Urban Service Area was established in 1977, and was last amend ed in
2002 when 180.7 acres were added on the east side of the Village for a business park and
residential use.
The proposal is consistent with the Northeast Neighborhood Plan approved by the Mount
Horeb Village Board on September 24, 2007, following the general recommendations of the
Village of Mount Horeb Comprehensive Plan adopted in 2005. The proposed amendment does
not conflict with the Dane County Parks and Open Space Plan, and protects the Military Ridge
Trail by placing it in environmental corridors. The neighborhood plan includes 50-100 feet of
buffer on both sides of the trail in addition to a 65-foot rear yard setback.
Analysis of 2030 land demand, based on 2006 population data, indicates that the Mount
Horeb Urban Service Area contains developable land exceeding the 2030 forecast land
demand by 53 acres. Areas within the USA undeveloped at the time of the 2005 land use
survey include approximately 120 acres in the southwest corner of the urban service area
identified in the Mount Horeb Comprehensive Plan Future Land Use map as future
commercial and planned neighborhood, and approximately 120 acres on the south side of the
USA identified as future planned neighborhood. The Village of Mount Horeb reports that
many of the undeveloped parcels within the current USA are not available for sale. This was
determined through contacts made with property owners during April 2008 related to the
High School siting study being undertaken by the School District and the Village.
The Village identifies these special circumstances as establishing the need for the urban
service area expansion. First, the Village has recently invested in substantial utility expansion
11
projects to serve the proposed amendment area including a new water tower, new regional
stormwater facilities, new electric substation, upgraded transportation facilities, and planned
expansion of the wastewater treatment plant. The Village states that these investments were
long-planned based on the previous understanding that the Mount Horeb Urban Service Area
had a maximum amendment size of approximately 694 acres.
In addition, the amendment is based on the Northeast Neighborhood Plan which, if
implemented, includes stringent stormwater management standards and will provide
additional environmental protection and increased residential densities for the
environmentally challenging area of slopes, shallow topsoils, high bedrock and high quality
surface water resources in the Mount Horeb area. A water quality pond in the proposed
amendment area will result in greater protections for Schlapbach Creek by treating run-off
from the developed portion of the Village which is currently received by the headwaters of
Schlapbach Creek untreated, and the Village will pursue more compact residential
development than the historic densities, respecting the environmental challenges of
development in the driftless area.
The amendment area exceeds 100 acres, requiring a phasing plan. The Village expects that
the Schroeder property, on the southern side of the amendment area, will be developed within
the next five years. The remainder of the development within the amendment area is expected
to occur within the next ten years. The Village predicts this timeframe due to the expectation
that other vacant properties will not be available for sale to meet growth needs. It is expected
that the vacant properties will be available for development within the planning period,
therefore they are not being proposed for deletion.
The proposed amendment is adjacent to the existing urban service area to the west and
south. The amendment as proposed supports three CARPC goals, and partially supports a
fourth goal.
The development of the area calls for commercial use and a variety of types of residential use
as well as open space, supporting the CARPC goal of promoting the development of balanced
communities throughout the region.
A range of residential development types is proposed for the amendment area including single
family, duplex and multifamily units. The multifamily may potentially serve elderly and
disabled residents. This proposed development supports the CARPC goal of providing a full
range of safe and affordable housing opportunities and choices for all residents throughout
the county.
Over 136 acres are to be designated as environmental corridors, including parkland,
woodlands, steep slopes adjacent to water-bodies, open space and the Military Ridge Trail,
supporting the CARPC goal of developing a county-wide system of open space corridors. Trails
are proposed through the open space areas.
The overall residential density of the area as proposed is 5.7 units per acre, a considerable
increase in density over the existing 4.0 units per acre in the Mount Horeb Urban Service
Area. This increased residential density supports a fourth CARPC goal, promoting compact
urban development in new areas adjacent to existing urban areas. However, the amendment
as proposed also includes 58.7 acres planned for continued agricultural, rural and vacant
use. Addition of land intended for agricultural and rural use in the urban service area
conflicts with the goal of promoting compact urban development in new areas.
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Much of the area proposed to be added to the urban service area is currently in agricultural
use, presenting a conflict with the CARPC goal of protecting agricultural lands. The conflict
could be considered to be lessened because only 3.5% (12 acres) of the land to be added (and
taken out of agriculture for development) are prime agricultural soils. In addition, 58.7 acres
of agricultural lands proposed to be added to the urban service area are planned to be
maintained in agricultural and rural use. However, bringing lands planned for long-term
agricultural and rural use into the urban service area conflicts with the purpose of the urban
service area and creates additional development pressures on the agricultural lands,
conflicting with the goal of protecting agricultural lands.
The addition of lands planned for long term agricultural use also makes it impossible to
evaluate the impacts of the amendment because of the uncertainty of the eventual urban
uses in close to 60 acres of the amendment area.
The amendment area is contiguous to the current USA, to infrastructure including sanitary
lift stations. Portions of the amendment area are proposed for agricultural use because this
area would exceed the current lift station capacity. Lift stations are designed for 10-year
upgrades which are achieved through installation of larger pumps when the need arises. This
aspect of the proposal does not decrease its contiguity.
5. Description of Urban Services
Public Water System. The planned development in the amendment area is estimated
to have 140,000 gallons per day of potable water demand. Water service will be extended
to the proposed amendment area from a 12-inch water main located along Brookwood
Drive north of CTH ID and a 10-inch main along Telemark Parkway which splits into two
8-inch stubs on the north side of CTH ID.
The Village of Mount Horeb water system has four wells with capacities of 500, 550, 750
and 1,000 gallons per minute. The well supply has a total capacity of 4 mgd and a firm
capacity of 2.6 mgd. In 2006 the average day water demand in the Village was 595,500
gallons per day and the maximum day pumpage was 997,000. Under the current
demands, the system has approximately 1.6 mgd of excess well capacity to facilitate
future growth of the Village and to potentially account for the abandonment of Well No. 3
(500 gpm capacity). The system has 1.3 million gallons of storage.
The water supply and distribution system has adequate storage and capacity to provide
potable and fire-fighting flows for the foreseeable growth in the Mount Horeb Urban
Service Area.
Wastewater. The planned development in the amendment area is estimated to
generate 132,000 gallons of wastewater per day. The amendment area is proposed to be
served by a new gravity sewer. The Northeast Neighborhood is served by two pumping
stations, the Brookwood and Wayside/CTH ID stations.
The Village has determined the overall pumping capacity of the Wayside pumping station
to be 382 gpm and the Brookwood station to be 730 gpm. Using these design capacities,
the Village has determined the overall density available to the parcels served by the
corresponding pumping station.
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The Lukken area of the Northeast Neighborhood Plan, located directly south of CTH S, is
proposed to drain by gravity to the Brookwood pumping station. The Village has
calculated that 274 dwelling units can be immediately served by the station.
The Schroeder area of the Plan, located north of CTH ID, is proposed to drain by gravity to
the Wayside/CTH ID pumping station. The overall available capacity of this station is
limited to an additional average daily flow of 63,000 gpd.
In 2006, the Village of Mount Horeb wastewater treatment plant received an average daily
flow of about 505,000 gallons per day. The treatment plant has adequate capacity to treat
wastewater generated from the service area through 2020.
Stormwater Management System. The stormwater management plan for the
amendment area includes three regional basins, the first located on the north side of the
large park, the second west of Brookwood Drive, and the third on the north side of CTH
ID (see Map 7). Smaller private basins will be necessary on commercial lots. Small basins
will also be needed for portions of residential development areas. The Village will require
private basins to have a long term maintenance agreement in place prior to construction
that allows the Village to perform inspections and maintenance if the property owner is
not performing the proper operation and maintenance of the stormwater management
features. The Village is investigating the creation of a stormwater utility as a funding
method for management, maintenance, and operation of the Village owned basins.
The regional ponds are proposed to reduce thermal impacts and peak discharge rates
from the development. The submittal states that proposed ponds will be designed to
achieve the following:
x
x
x
x
x
Trap at least 80% total suspended solids and the 5 micron particles for the oneyear storm.
Control thermal pollution by using the TURM model for runoff leaving the
basins and entering Schlapbach Creek.
Control the 10-year post-development storm to the 10-year pre-development
storm discharge rate.
Where appropriate, require infiltration to the Dane County standards. The
Village recognizes that the shallow bedrock existing over a majority of the site
may create problems for bedrock separation distances and notes that rain
gardens have been required in other developments within the Village to meet the
infiltration goals.
Meet or exceed NR 151 requirements for stormwater discharges (maintain 90%
pre-development infiltration for residential and 60% for commercial
development).
A small water quality pond is proposed upstream of the Brookwood Road crossing of
Schlapbach Creek, to treat run-off from the currently developed portion of the Village and
further protect the headwaters of Schlapbach Creek that currently receive untreated
waters from the Village.
The Village of Mount Horeb local ordinance requires stormwater management controls
and downstream protection including requiring basins to be constructed prior to
development of areas tributary to a regional basin. Erosion control plans must meet the
Dane County requirements for sediment loss rates and DNR standards. The Village states
14
that a rigorous review process is undertaken by the Village in order to protect the
Schlapbach Creek watershed to the maximum extent practicable. Regional detention
basins will be built prior to land disturbing activities.
Urban Transportation System. The Northeast Neighborhood Plan for the amendment
area shows a network of interconnected streets within the northern and southern areas
planned for development. The planned street network includes an extension north of
existing Brookwood Drive to CTH S at Witte Road. This street, which has been officially
mapped, serves as the main neighborhood collector street and provides an important
north-south route through the Village in addition to STH 78. A grade-separated crossing
under the Military Ridge Trail is planned, since the trail is nearly 25 feet above the
ground at that point. Manor Drive is planned to be extended east, intersecting with the
Brookwood Drive extension. A planned extension of Getz Road south of CTH S also
intersects Brookwood Drive extended. Sidewalks are planned on both sides of all streets.
The neighborhood plan recommends retrofitting in sidewalk along existing Brookwood
Drive. The neighborhood plan shows a network of planned paved multi-use paths. Paths
are proposed along the west side of the planned park (on the east side of Brookwood
Drive), around the perimeter of the school site, and along the south side of CTH S. A
concept plat included with the submittal shows a proposed path through the planned
subdivision off CTH ID. A potential connection west across STH 78 to Stewart Park is also
shown. An unpaved pedestrian only path is proposed along Schlapbach Creek. Bike lanes
are proposed on several streets in the neighborhood.
Environmental Corridors. The amendment proposes designation of 136.8 acres of
environmental corridors including parkland, open space, the Military Ridge Trail, and
stormwater management areas. Stormwater facilities will account for 16 acres of the
environmental corridors. The delineation maintains a 100-foot buffer for the Military Ridge
Trail. Woodlands have been included in environmental corridors, as well as steep slopes (12%
and steeper) adjacent to water-bodies.
Public Areas and Facilities. A large portion of the amendment area is open space in
environmental corridors. The Military Ridge Trail runs through the area, providing a
multi-use path with a direct connection to the Village downtown. The Northeast
Neighborhood Plan also includes a large community park located in the center of the
proposed amendment area.
The area is in the Mount Horeb Area School District. The Early Learning Center (prekindergarten and kindergarten) is located at 300 Spellman Street, and the Primary Center
(Grades 1 and 2) is located at 207 Academy Street. Each is approximately 1.5 miles
southwest of the amendment area. The Intermediate Center (Grades 3-5), located at 200
Hanneman Blvd., The Middle School (Grades 6-8 ) at 900 E. Garfield Street, and Mount
Horeb High School, located at 305 S. 8th Street, are all approximately 1.5 miles southwest
of the amendment area. The Northeast Neighborhood Plan also identifies a proposed
school site on the north side of the amendment area.
Public Safety Services. Police services will be provided for the amendment area by the
Village of Mount Horeb Police Department, headquartered at 222 East Front Street within 11.5 miles of the amendment area. The Police Department includes a staff of ten full-time and
eight part-time officers.
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Fire protection will be provided by the Mount Horeb Volunteer Fire Department. The
department has 65 volunteer members and one full-time fire chief. The fire station is located
at 120 South First Street in the Village of Mount Horeb, approximately 1.5 miles from the
proposed amendment area. The response time for emergency services to the area is estimated
at four to five minutes. Mount Horeb has an ISO fire rating of 5, meeting CARPC guidelines.
Emergency Medical Services for the area are provided by the Mount Horeb EMS which is
housed with the fire department on South First Street. Estimated response time for EMS
services is also four to five minutes.
Other Urban Services. The Village provides snow removal service and contracts for
solid waste and recycling service. The Village also provides electric service to the area and
recently added an electric substation on CTH S to serve future development.
6. Impacts or Effects of Proposal
Surface and Ground Water Impacts. The potential impacts of urban development
on receiving water bodies are to increase stormwater runoff rates and volumes causing
hydrologic and physical changes in receiving streams, reduce groundwater recharge and
stream base flow, and introduce urban contaminants into the receiving bodies of water.
This occurs from the expansion of impervious surfaces (i.e., streets, parking areas, and
roofs). Development can also cause substantial soil erosion and off-site siltation from
construction activities.
The Village of Mount Horeb is situated on top of a hill and at the headwaters of five
extremely sensitive coldwater streams. Historic development in the Village has already
had detrimental impacts on these stream. The proposed amendment is entirely in the
Schlapbach Creek watershed. Schlapbach Creek is not only an Exceptional Resource
Water (ERW), but has been identified by WDNR fisheries staff as an excellent candidate
for brook trout introduction and management. Stream data indicates that because
portions of the Village drain into the Creek with inadequate management, the stream
exhibits flashy flow characteristics which contribute to bed and bank erosion and
increased sedimentation. Water quality monitoring on Schlapbach Creek indicates the
following conditions:
x
Temperature data at the headwaters of Schlapbach Creek indicates brief “heat
island” effects during the early stages of summer storm events. However, water
temperature increases appear to be generally localized and very brief.
x
Of greater concern are the significant increases in phosphorus, nitrogen, suspended
solids, and turbidity that accompany storms. These results suggest that water
pollution is currently a greater threat to the Creek than temperature.
x
Storm event concentrations of phosphorus and nitrogen exceed USEPA
recommended standards. The phosphorus and ammonia levels also exceed the
threshold concentrations that can have negative effects on biological communities.
x
The existing stormwater detention basins in Mt. Horeb are designed to balance
pollution reduction while reducing thermal loading to the stream. These wastewater
systems are generally designed for relatively short residence time to avoid
warmwater flow from permanent pools. However, the results from monitoring
suggest that water quality may be a greater threat to the stream at this time.
16
x
In some instances, concern over the threat of heat inputs to coldwater streams has
been over-estimated. Throughout southwest Wisconsin, federal PL-566
impoundments were historically constructed with bottom discharge gates to reduce
downstream heating from surface water. However, recent studies have determined
that the release of nutrient-rich hypolimnetic water has been a greater source of
degradation to several streams than temperature increases (Marshall, et. al.2006).
Palmer and O’Keeffe (1989) had demonstrated that the thermal recovery time from
impoundments constructed on small streams is typically brief and impacts
localized.
x
On the north side of Mt. Horeb, Stewart Lake has discharged surface water to Moen
Creek with no measurable impacts to stream temperatures or the brown trout and
mottled sculpin in the stream. Given the need to reduce sediment and nutrient
loads from Schlapbach Creek, two water transparency samples that suggested
suspended solids loading from the Cape Commons detention basin may be
significant. These preliminary findings suggest that there may be a need to evaluate
the performance of the detention basin, and perhaps consider options to increase
the capture efficiency of the facility. While impoundments on trout streams are
never recommended due to hydrologic and thermal impacts, managing urban
stormwater could be more effective with longer residence times or increased filtering
and coagulation measures. More intensive monitoring is needed to better
understand the effectiveness or limitations of existing storm water facilities in the
watershed.
x
Schlapbach Creek had 10.62% impervious cover based on the 2000 land use
inventory. This is in the “impacted” range, and the stream is showing it. This
impervious extent is located in the Village of Mount Horeb, and it falls on the
Village to correct this impact.
The Village has taken very positive steps toward stormwater management at the policy
level. The neighborhood plan as adopted by the Village, for example, includes the following
specific recommendation:
“Given its location at the headwaters of Schlapbach Creek and the Upper Sugar River
Watershed, the Village should practice and require progressive stormwater
management. Overall, post-development stormwater runoff should not exceed predevelopment level—both in terms of water quantity and quality. Various techniques
may achieve that goal, including overland water transfer, maximum impervious
surface ratios for development sites, natural landscaping, rain gardens, and site and
regional detention basins. All development should be required to follow the Village’s
stormwater ordinance. In addition, the Village could consider collaboration with the
Upper Sugar River Watershed Association, Dane County, and the WisDNR on
potential erosion problems, establishment of buffer margins between yards/lots and
the Schlapbach Creek environmental corridor, and competing for County, State and
Federal funding to ensure the ability to adopt and enforce Best Management
Practices.”
The submittal for the amendment contains many of these recommendations, especially
those concerning buffers and environmental corridors. However, the Village submittal does
not contain stormwater Best Management Practices that are consistent with the
neighborhood plan or that meet the restoration and preservation needs of Schlapbach
Creek. For example, stormwater control is only for the 10-year storm, and that is for peak
rates of runoff, not “water quantity” as the plan outlines. Infiltration and water quality
17
standards are only to meet minimum standards, instead of the goal of mitigating the
adverse impacts of increased runoff volume on a sensitive resource such as Schlapbach
Creek. The proposal includes a regional detention pond to address pre-existing stormwater
problems, however this does not appear to be sized to provide stormwater treatment for the
older portions of the Village. The Village is the lead management agency for stormwater
management within its corporate limits and it needs to demonstrate proactive leadership
in protecting and restoring this headwaters area of Schlapbach Creek through active
implementation of protective measures and stewardship, in addition to positive plan
development.
The Village should regard the following measures as important in meeting its stewardship
responsibilities and critical to the protection of water quality in Schlapbach Creek:
x
The Village needs to implement an aggressive construction erosion ordinance well
beyond the County ordinance (7.5 tons/acre/year). Hiring and training adequate
inspection and enforcement staff is essential. All of the streams surrounding the Village
are highly sensitive to sedimentation. The Village should consult with the Dane County
Land and Water Resources Department staff and the Upper Sugar River Watershed
Association for progressive and innovative approaches to construction erosion control.
Recent information from the WDNR indicates the Village is not as stringent in
enforcement as it needs to be, this can result in diminished confidence that the Village
is willing or capable of being a good steward of the resources it is impacting.
x
The Village needs to revise its stormwater management plan so it is acceptable to the
WDNR, and quickly and fully implement this plan before more harm is done to
receiving streams. As part of this revision it should tighten its stormwater standards
with the goal of preserving the hydrology of the headwaters it is impacting. This would
require stringent volume control with the goal of maintaining the hydrologic regime of
receiving streams. In this regard, maintaining post-development peaks at predevelopment levels is inadequate since this still results in increased volumes resulting
in changed stream morphology. A combination of infiltration, reduced impervious area,
low impact urban design, detention combined with seepage devices, and similar
approaches should be considered in combination. Thermal impact mitigation will need
to be included in all such stormwater management measures (temperature sink rock
cribs and pond under drains have been shown to be effective measures). There are
numerous funding sources available for this work.
x
The Village should work with the WDNR, DCL&WRC, CARPC, and the Watershed
Association to develop an acceptable regional stormwater treatment and management
train to treat and manage the runoff currently discharging into Schlapbach Creek at
Perimeter Road. This train should be upstream of the proposed wet pond upstream of
Brookwood Drive and could include a series of gabions and check dams to capture
sediment and adequately attenuate the flow spikes and restore to the extent possible
the original hydrologic regime of the stream (the neighborhood plan already reserves
this area for “additional water quality improvement”; see Map 7). Such restoration
should be compatible with brook trout habitat to the extent feasible. The Village could
receive grants in support of such a regional facility, and should work with the
Watershed Association to do so.
x
The Village should initiate a program to stabilize the eroded banks of the Creek
(bioengineering practices).
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x
The Village should be a full participant in the Sugar River Watershed Association, since
it has, due to its location, such an important impact on the stream. It should
participate in increased stream monitoring to further identify areas in need of
improvement. The Village should fully implement its portion of the Sugar River
Watershed Plan in cooperation with the Watershed Association and the WDNR.
x
The proposed creation of a stormwater utility should be pursued since it would provide
the Village with much needed matching funds to upgrade its stormwater management
infrastructure to meet the requirements of the receiving streams.
x
The Village, in collaboration with the WDNR, USGS, Dane County, and CARPC, initiate
a comprehensive ecosystem study of the headwater areas of the streams surrounding
the Mount Horeb Urban Service Area. These study areas are the following:
o
Schlapbach Creek (to confluence with Sugar River),
o
West Branch Sugar River (portion in Town of Blue Mounds),
o
Mount Vernon Creek and its tributaries (portion of Fryes Feeder, Deer Creek, and
Mount Vernon Creek in the Town of Springdale),
o
German Valley Branch (to confluence with Blue Mounds Branch),
o
Moen Creek and Elvers Creek (to confluence with Bohn Creek), and
o
Sugar River (portion in the Town of Cross Plains to confluence with Schlapbach
Creek).
The purpose of this comprehensive study is to assess the impacts of development on
stream ecosystems, and to develop and implement conservation plans for the watersheds
to ensure the protection of these streams as viable, high quality, cold water ecosystems.
Future plans for growth in these portions of the noted watersheds should be with the full
consideration of the findings of this comprehensive study and the conservation plans for
each stream.
Transportation System Impacts. The proposed amendment is intended for 63 acres
of single-family residential development and another 11 acres of mixed residential
development accommodating a total of up to 408 dwelling units. It also includes 11 acres
of commercial development and a 17-acre school site. When fully developed, the
amendment area could be expected to generate around 7,000 one-way vehicle trips on an
average weekday, excluding estimated pass-by trips and trips internal to the
neighborhood. The actual trip generation will depend upon the type of commercial uses
and the mix of residential types. It was assumed that two-thirds of the commercial
development would be retail and one-third would be office/service.
In 2006, the average daily traffic (ADT) volume on CTH ID east of STH 78/STH 92 (8th
Street) was 9,400. The 2006 ADT volume on CTH S east of STH 78 was 5,300.
There is sufficient capacity on CTH ID and CTH S to handle the expected traffic from the
proposed amendment area. Minor intersection improvements such as turn lanes may be
needed in the future at the two entrances to the neighborhood off CTH S, particularly the
school site. The construction of roundabouts at Brookwood Drive and Telemark Parkway
as part of the CTH ID reconstruction should handle the turning movements on that street.
School System Impacts. The amendment area is within the Mount Horeb Area
School District, which had enrollment of 2,262 students in the 2007-2008 school-year.
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The Mount Horeb school district has experienced a 24.1% increase in enrollment since the
1997-98 school-year, the third fastest growth rate among Dane County school districts.
The school district is currently in the process of planning for a new high school and is
working with the Village to have the Comprehensive Plan updated to include a site for the
new school. The proposed urban service area amendment includes a 17 acre school site,
which is among the sites that have been considered for the high school.
The amendment is anticipated to add approximately 216 school aged children to the
district.
7. Alternatives
The Village of Mount Horeb Comprehensive Plan identifies potential urban service area
expansions for planned neighborhoods in the northeast (subject of the amendment) and
the northwest. Development of the area in the northwest is noted to be conditioned on
improvement of a new north-south collector road providing access to CTH ID. The northwest
area is smaller than the Northeast Neighborhood and is limited to the west by Elvers Creek.
The Upper Sugar River Watershed Association and the WDNR were also involved in
neighborhood planning. Although the Comprehensive plan identifies other potential
expansion areas in the southwest, identified for planned industrial/business park use, and in
the south for school district property, areas on the west side of the Village and south of the
STH 18/151 bypass have significant water quality impacts and were discouraged by the
WDNR. Areas to the north and northeast of the Village were deemed to be more amenable to
development if rigorous and strict stormwater management measures are implemented and
historic stormwater problems are addressed.
8. Controversies, Comments Received, Unresolved Issues
A public hearing before the Capital Area Regional Planning Commission is scheduled for July
10, 2008.
The Town of Springdale was involved in the planning process for the Northeast Neighborhood
Plan, and was notified by the Village of the public hearing on the draft plan. No objections
were received from the Town of Springdale. CARPC staff has sent notice of the public hearing
on the Urban Service Area amendment to the Towns of Springdale and Blue Mounds. No
comments have been received.
9. Conclusions and Staff Recommendations
The Village of Mount Horeb has completed a comprehensive and well conceived
neighborhood plan for the development of its northeast side. The proposed plan includes
allowance for open space to provide buffers for the Military Ridge Trail and Schlapbach
Creek, including the steep slopes and the woodlands. The proposal lacks adequate
stormwater mitigation standards in light of the fact that it will be discharging to a highly
sensitive stream with potential to support a brook trout fishery. Furthermore, stream
monitoring on Schlapbach Creek indicates that it has been impacted by historic
development in the Village.
The proposed amendment includes areas outside of the neighborhood development area
(these areas have been proposed for agricultural/rural/vacant uses; see Map 7). Absent a
clear development proposal, it is not possible to evaluate the potential impacts of
20
development in these areas. If the intent is to retain these areas in agricultural land uses
in the long term, then they should not be brought into the urban service area. Staff
recommends removing the area north of the Military Ridge Trail and east of Wally Road,
and the area proposed for agricultural use on the southeast corner of the amendment
area, from the request.
It is critical that the Village address the shortcomings of its stormwater management and
stream stewardship responsibilities if it is to continue to expand into the highly sensitive
watersheds surrounding it. Therefore, staff can only recommend approval of the proposed
amendment (with the removal of the agricultural use areas) if the following conditions are
fulfilled by the Village of Mount Horeb in addition to the plans and services which have
been submitted:
1. In cooperation with the WDNR, DCL&WRC, CARPC, and the Watershed Association
develop an acceptable regional stormwater treatment and management train to treat
and manage the runoff currently discharging into Schlapbach Creek from the
developed portions of the Village of Mount Horeb. This train should capture sediment
and attenuate the flow spikes and restore to the extent possible the original hydrologic
regime of the stream. Such restoration should be compatible with brook trout habitat
to the extent feasible. This regional facility is independent of the proposed
development, but should be constructed at least concurrent with other stormwater
facilities in the amendment area.
2. Develop a comprehensive stormwater management plan in collaboration with the
WDNR, and include clear, timely, and concrete implementation steps for this plan.
The stormwater management plan should be developed with the purpose of assisting
in the restoration of receiving streams and their habitats, and preserving the
hydrology of the headwater streams with potential for impact by the Village.
3. Develop and implement an aggressive construction erosion ordinance well beyond the
County ordinance (7.5 tons/acre/year). Include the use of polymers in addition to
other erosion control measures for added protection.
4. Submit a detailed stormwater management plan for CARPC and DCL&WRD staff
review and approval prior to land disturbing activities in the area. The stormwater
management plan should include the following:
o Maintain the pre-development hydrologic regime (rates and volumes) by maximizing
infiltration, minimizing impervious surfaces, and through detention.
o Include thermal sinks in outfall structures to reduce the discharge temperature to
levels protective of brook trout.
o Provide water quality treatment to mitigate the impacts of development to the
maximum extent feasible and at a minimum capture of 80% of sediment load for up
to a 2 year storm (and preferably exceeding this level of treatment).
o Prevent increased off-site flooding and erosion.
o Provide aggressive construction erosion control practices and enforcement through
Village Engineer and properly trained Building Inspector.
o Install stormwater facilities prior to other land disturbing activities in the area.
21
o Stormwater facilities to be publicly managed (privately owned facilities to have
easements and legally enforceable maintenance agreement with Village).
5. Develop a tree and vegetation protection and restoration plan for the areas in
environmental corridors, with special emphasis for stabilizing stream buffer areas and
preventing erosion.
6. The proposed environmental corridors shall be substantially retained. Any major
encroachment into the corridors is presumed to have adverse water quality impacts
due to the presence of steep slopes, stream buffers, and woodlands.
It is also recommended that the Village of Mount Horeb pursue the following:
1. Consider a narrower pavement width for Brookwood Drive extended in order to reduce
speeding. It is likely that there will be few, if any, parked cars on the street most of the
time yet sufficient pavement to accommodate four lanes of traffic. Alternatively, the
parking and bike lanes will need to be striped and other traffic calming measures
employed.
2. Re-consider the proposed multi-use path along the south side of CTH S. Paths next to
urban streets pose operational problems at street intersections and often increase the
hazards to bicyclists (See p. 4-3 of WisDOT’s Wisconsin Bicycle Facility Design Manual
(Jan. 2004)). Instead, it is recommended that consideration be given to using the
planned local streets parallel to CTH S with a connecting path through the school site.
The proposed location of the path crossing of STH 78 adjacent to the roundabout is
also not recommended for safety reasons. Providing a crossing at Manor Drive would
be preferable. There are also On-Road Bike Facility Improvements needed on CTH S
and Business 18/151.
3. In collaboration with the WDNR, USGS, Dane County, and CARPC, initiate a
comprehensive ecosystem study of the headwater areas of the streams surrounding
the Mount Horeb Urban Service Area. These study areas are the following:
o Schlapbach Creek (to confluence with Sugar River),
o West Branch Sugar River (portion in Town of Blue Mounds),
o Mount Vernon Creek and its tributaries (portion of Fryes Feeder, Deer Creek, and
Mount Vernon Creek in the Town of Springdale),
o German Valley Branch (to confluence with Blue Mounds Branch),
o Moen Creek and Elvers Creek (to confluence with Bohn Creek), and
o Sugar River (portion in the Town of Cross Plains to confluence with Schlapbach
Creek).
The purpose of this comprehensive study is to assess the impacts of development on
stream ecosystems, and to develop and implement conservation plans for the
watersheds to ensure the protection of these streams as viable, high quality, cold
water ecosystems. Future plans for growth in these portions of the noted watersheds
should be with the full consideration of the findings of this comprehensive study and
the conservation plans for each of the streams.
22
DRAFT Resolution CARPC No. 2008-17
Amending the Dane County Land Use and Transportation Plan and Dane County Water
Quality Plan by Revising the Mt. Horeb Urban Service Area Boundary and Environmental
Corridors in the Village of Mt. Horeb, Town of Springdale and Town of Blue Mounds
WHEREAS, the Capital Area Regional Planning Commission has adopted, amended and
reaffirmed the Dane County Land Use and Transportation Plan and Water Quality Plan; and
WHEREAS, said plans delineate urban service areas as amended through June 2008; and
WHEREAS, the Village of Mt. Horeb has requested an addition to the Mt. Horeb Urban Service
Area, and has based the request in part on the Village Comprehensive Plan, adopted in 2005, and on
the Village Northeast Neighborhood Plan, adopted in 2007; and
WHEREAS, a staff analysis of the proposed amendment has been prepared, which indicates
that the amendment is generally consistent with adopted regional plans and policies;
NOW, THEREFORE, BE IT RESOLVED that in accordance with §66.0309, Wis. Stats., and
Sec. 208 of Public Law 92–500, the Capital Area Regional Planning Commission amends the Dane
County Land Use and Transportation Plan and recommends the amendment of the Dane
County Water Quality Plan by revising the Mt. Horeb Urban Service Area boundary and
environmental corridors as shown on the attached map.
Adoption of this amendment is based on the land use and urban service plans submitted in
support of this amendment, and conditioned on the Village of Mt. Horeb pursuing the following:
July 10, 2008
Date Adopted
George Kamperschroer, Vice-Chairperson
Mt Horeb
USA
S
Town of
Springdale
JG
Hollfelder Drive
Witte Road
Get z Road
Town of
Blue Mounds
78
78
ID
S
151
18
Amendment
Area
92
Road
Wally
Ma
no
li
Mi
y
t ar
R
e
idg
Tra
rD
riv
e
il
R
ott
Sc
Shenandoah Way
Manor Drive
d
oa
Upper Sugar River/
Schlapbach Creek
Cox Road
Village of
Mt Horeb
E Lincoln Street
Golf Bowl Road
Business 18 & 151
ID
Bu
s in
e ss
18
&
15 1
ID
Rid
gev
E Garfield Street
iew
R
oad
West Sugar River/
Mt. Vernon Creek
18
Map 1
Amendment to the
Mt Horeb Urban Service
Area in the Village of Mt
Horeb, Town of Blue
Mounds and Town of Springdale
18
10 June 2008
Proposed Urban Service Area Boundary
Existing Urban Service Area Boundary
Service Area to be Added (340.0 acres)
Existing Environmental Corridor
Environmental Corridor to be Added (136.8 acres)
Incorporated Area
Watershed Boundary
0
900
Feet\
Prepared by staff
of the CARPC.
Page 1 of 1
Gjestson, Christopher
From:
Stefi Harris [[email protected]]
Sent:
Thursday, July 03, 2008 2:23 PM
To:
Capital Area RPC Mail
Subject: Deny Village of Mount Horeb USA extension
attn: Chris Gjestson
To be distributed to CARPC staff and members.
Stefi Harris
3427 County Rd P
Mount Horeb WI 53572
608-798-4833
[email protected]
7/3/2008
CARPC member
7/3/08
Re: Request for USA extension by the Village of Mt Horeb
Village of Mt Horeb is proposing to extend its urban service area over 339 acres northeast of the
village, of which at least 119 acres or 35.3 % of the total area, because of steep slopes and
unique and endangered environments are unsuitable for development and therefore are
designated in the plan as an environmental corridor. This environmental corridor transects the
proposed USA area roughly through the middle and effectively separates the two” developable “
parts (the area south of county highway S and the area north of county highway ID) from each
other.
According to the village’s Northeast Neighborhood Plan of September 2007 these so called
“developable” parts also have development problems; “The planning area contains areas where
the depth of the bedrock is fairly shallow. Throughout most of the planning area, it is less than
16 inches. This suggests that any development within the area may require blasting for grading
for utilities” (page 9), In addition the combination of rolling topography and silty loamy soils
prone to erosion coupled with location of the two “developable areas” directly above the
sensitive environmental corridor makes those areas equally unsuitable for development as well.
The comprehensive plan map for the village of November 2005 containing future land use sites
contains a notation for the proposed development corridor; “ Development throughout this area
is constrained by utility capacity. Gross densities are limited to a maximum of 2.25 dwelling units
per acre unless alternative utility arrangements are approved by the Village, financed by the
developer, and installed and approved by the village.” It is not clear additional utility capacity
had been added to this area, since no developer has yet stepped up to take charge and
financial responsibility for the proposed development.
The proposed USA is not consistent with its own comprehensive plan. One of the stated goals
and objectives of the comprehensive plan is to “preserve streams, drainage-ways, floodplains,
wildlife habitat… and other natural features” (page 39). It recognizes the Schlapbach Creek as
“an exceptional water resource under NR102” designated for protection by DNR’s Land Legacy
Study which identified the areas the public deemed most important for conservation and
recreation over the next 50 years (page 34).
The village in its proposal claims that the designation of the Schlapbach Creek as a part of the
environmental corridor will offer it a degree of protection it does not enjoy at present. But the
value of such designation is largely symbolic and stands to be overwhelmingly offset by the
erosion activities associated with construction and high density development following it in the
areas directly above both banks of the Sclapbach Creek.
In addition, if the village was serious about preservation of the Schlapbach Creek they would not
be proposing to extend Manor Drive over the creek in order to interconnect the two
“developable” part of the proposed USA. The effect of the proposed road extension over the
very headwaters of this exceptional water resource is not described in any of their plans.
The village has inadvertently offered a suggestion that some one of the main measures
designed and promoted to ameliorate negative impact of the proposed development on the
Schlapbach Creek will do more harm than good to the resource. They are proposing to create a
water runoff impoundment at the very headwaters of the Schlapbach Creek. On the map it looks
like the creek is emerging from the impoundment. No other details are available on this matter.
But if the impoundment is either in the floodlplain or very near the Schlapbach Creek or at its
headwaters the creek will be turned into a channel for the “Northeast Neighborhood USA”
There is another area in which the village’s proposal is not in compliance with its comprehensive
plan. According to the comprehensive plan the new neighborhoods are supposed to contain a
mix of small commercial establishments, different housing types, compatible other uses such as
churches, parks and schools. The Proposed Northeastern Neighborhood does not contain most
of these features. Proposed commercial development north of ID are a part of larger commercial
district geared not for neighborhood patronage but for a broader market, The proposed
commercial area south of County Rd S has a location of a classical strip mall designed not so
much to capture neighborhood business but traffic moving on US Highway 78 and County Rd S.
The proposed layout of housing types is not a mixture of these but a segregated pattern of
housing types. As for school, the village and the school board are currently engaged in a
dispute what would be the best location for the new school. This site is just one of the possible
sites.
But considering the difficulties and expense over bringing utilities to this site, it might not make it
to the top. Besides the school district has not conducted a referendum to get approval for
building a new high school. In present climate of raising energy and construction costs and
shrinking incomes it is not certain the electors will approve the hike in school costs. The School
District might opt for improving the handicapped access in the old middle school and add more
classroom space to the existing school instead of simply abandoning the old middle school
building and overbuilding additional space in expectation of perpetual growth based on old
statistical projections.
The two “developable areas” of the proposed USA are connected by just one road; the
aforementioned Manor Drive transecting over the Schlapbach Creek and creating an island of a
part of the environmental corridor. One road connecting two developable parts in a 339 acre
area could be hardly considered as an adequate connectability.
Mt Horeb is on the record as “maintaining agriculture as a significant economic activity and
recognizing the value of farmland as open space within the Mt Horeb’s extraterritorial
jurisdiction” and that “No stated policy should be adopted or implemented which substantially
impairs or diminishes the present uses, values and enjoyment of agricultural land”. It also
promises to “work with surrounding communities to encourage an orderly efficient development
that minimizes conflicts between urban and rural uses (Page 24).
Where are these lofty farmland preservation goals in this USA proposal which calls for
conversion of some 2000 farmland acres and for building 480 residential units and 1200 student
with a potential to over 6000 additional vehicle trips a day on already rush hour congested
County Roads S and P which farmers use daily to get to their fields by tractors and other slow
moving equipment?
Please examine this proposal carefully. Make the villagee of Mt Horeb look into their in-fill areas
for growth. Just recently the old school bus garage in the heart of the village was placed on the
market. The site would be great for low impact development in low increments that would reach
their goal of housing quota they claim they so much desire.