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General background on the approach used for this process
and information on the West Fork of Portage Creek subwatershed can
be found in the Watershed
Management Plan (WMP) Overview and on the Scoring
Table webpage. This site selection process started with a review
of the scoring results for the
stream corridor of the creek. Scoring was based upon ten physical,
observable parameters with a ranking of 0-3 for each, resulting
in a maximum of 30 total points for each stretch. High scores were
reflective of "good" conditions. Efforts are directed to protect
and maintain future high scores for areas currently scoring high
and to implement actions that will raise the future scores of those
areas that score lower now. Discussions focused not only upon these
stream corridor conditions, but also on non-contributing (lake)
areas and any upland opportunities that would reduce direct stormwater
contributions to the creek. With the West Fork flowing through three
municipalities (Texas Township and the Cities of Portage and Kalamazoo)
communication and coordination of efforts for implementation of
selected actions will be significant for success.
The Stretch Property Summaries Table,
provides each stretch by: number, location, description and score.
Scoring revealed a general trend of higher scores within the upper
reaches of the stream and lower scores toward the mouth, in the
commercial South Westnedge Avenue/Kilgore Road area. Only 2 of the
stretches scored lower than 15 while 7 of the 10 stretches scored
22 or higher. This was not surprising since the creek runs through
primarily protected and undeveloped areas for most of its course.
Near its mouth, it flows through the City of Portage South Westnedge
Avenue Commercial Corridor and a small portion of urbanized property
in the City of Kalamazoo before converging with Portage Creek in
the Blanch Hull Preserve.
Numbers in the following discussion summary correspond to the same
stream segment numbers found in the stretch summaries table. The
BMP Implementation Table
(PDF format, will open in new browser window)
provides a summary of proposed BMPs for each stretch and their associated
costs. (Links within that table provide additional cost information
for selected stretches). Please refer to the West
Fork of Portage Creek Virtual Tour for additional supportive
information on flow path and the locations described in the following
text.
Within the non-contributing areas, outlying lands in agricultural
use were identified as having potential concerns for groundwater
impact. Extensive residential development around Eagle and Crooked
Lakes potentially impacts the lakes by stormwater runoff, bank erosion
and potential infiltration from any septic systems that may still
be in use.
Stretch #1 (30 points)
Description
Stretch #1 begins on the east side of 8th Street at Fish Camp Pond
and Scouters and Bass Lakes. Most of the land in Stretch #1 falls
within the areas of the Rota-Kiwan Boy Scout Reservation and the
City of Kalamazoo Al Sabo Well Field Preserve, both relatively protected
tracts of woodlands, wetlands and upland fields. The Reservation
has a high summer traffic volume from scouters in the weekly Cub
and Boy Scout camp sessions. Al Sabo Preserve, open to the public,
has many hiking/cycling trails running through the property.
Impacts
Newer residential developments, located west off of 8th Street in
Texas Township, were noted to have individual septic systems, rather
than a connection to the sanitary sewer system. This is identified
as an area for the County Health Department to monitor for future
failed septic systems, since this location is at the headwaters,
in an otherwise minimally impacted area. Storm water runoff from
the Kalamazoo Valley Community College (KVCC) Texas Township Campus
was identified as having adverse impacts on the Al Sabo Preserve
in the form of bank erosion, sedimentation and storm water loading.
Recommendations
KVCC should consider BMPs for retaining storm water on-site. Infiltration
techniques, such as vegetative swales, detention areas, rain gardens
and even pervious parking lot materials, can be implemented. It
was also recommended that any future developments in the watershed
utilize on-site techniques to handle all generated storm water.
These upland options will reduce the storm water volumes reaching
the creek and improve the quality of water discharged to the creek.
The Rota-Kiwan Boy Scout Reservation and the Al Sabo Preserve offer
demonstration opportunities to implement passive education through
self-guided tours and signage. Some erosion is occurring in both
parcels. Rota-Kiwan is seeking funds to begin restoration efforts.
Overall, the recommendations are for continued protection of the
resources including Atwater Mill Pond. Long-term restoration and
renovation efforts are directed toward select vegetation and erosion
control efforts, where deemed necessary, and the retention of storm
water from new developments in the watershed.
Stretch #2 (25 points)
Description
This segment runs northeasterly under 12th Street, behind residential
developments, under Interstate 94 and US-131 and through a series
of small lakes to the Parkview Hills Planned Unit Development. The
reach is very isolated, flowing within a wooded valley with limited
access, between both highways and separated from new development.
Impacts
Several small areas of gully erosion from road and stream crossings
and private properties were identified.
Recommendations
Given these conditions, recommendations are more policy oriented,
suggesting that both municipalities be cognizant of potential impacts
from future land use and mandate on-site storm water handling for
all future developments in this area. No sites were selected for
specific actions.
Stretch #3 (22 points)
Description
Parkview Hills, a private planned unit development with protected
greenspaces, is the dominant element of this reach. Upstream flows
from the West Fork converge with flows emptying Asylum Lake from
the north. This latter branch and surrounding property is owned
by Western Michigan University
(WMU). The area around Asylum Lake is designated as a protected
area for WMU.
Impacts
Concerns over road runoff during and after the current expansion
and reconstruction of Parkview Avenue were expressed to the City
of Kalamazoo with the expectation that significant riparian management
efforts will be implemented. Potential septic issues from the trailer
park on Drake Road were also raised.
Recommendations
Within Parkview Hills, protect:
- all wetlands,
- an existing fen,
- a prairie restoration now underway and
- the native integrity of the property by controlling exotic species.
There are protective covenants in place within this development.
Management plans have recently been prepared by the Kalamazoo
Nature Center and KIESER & ASSOCIATES for Parkview Hills
that call for:
- cleaning of catch-basins for road runoff,
- management of invasive species (in progress),
- reduction of sediment accumulation in waters,
- creation of transition zones from water's edge to mowed/paved
areas (implement buffers strips),
- structural erosion control methods for the stormwater outlet
at Cricket Lane and
- erosion control for personal gardens on slopes and hillsides.
Given the private nature of this parcel and the public nature
of the Asylum Lake component flowing to it, it is strongly recommended
that any and all proposed activities in these areas be openly discussed
and mutually agreed upon by both WMU and Parkview Hills. The potential
is great for joint educational components that would be beneficial
to each and to the community at large. Education of city staff on
erosion control measures should be mandatory for those who will
be involved in activities in this vicinity. Continued protection
and renovation of the upland areas surrounding the water bodies
in this stretch will reduce the magnitude of storm water impacts
on the creek and improve the quality of the water reaching the creek.
Stretch # 4 (16.5 points)
Description
This stretch extends from south of Parkview Hills to Oakland Drive.
The creek splits into two branches, forms ponds around the Angling
Road vicinity and exhibits good emergent vegetation west of Oakland
Drive. There are many nice greenspaces within this reach, including
the Nature's Way Preschool.
Impacts
Some residential property owners along Angling Road have eliminated
the riparian vegetation. The score drops in this stretch due to
lack of shading, erosion, number of storm sewer outfalls and lack
of riparian vegetation on residential properties.
Recommendations
- educate residential property owners on riparian landscaping
practices to protect water quality and habitats,
- utilize appropriate operation and management practices by city
road crews to reduce runoff impacts from roadways,
- repair and eliminate soil erosion from around the Angling Road
stormwater outfalls,
- reduce waterfowl access to stream through vegetative restoration
practices,
- continue the effort to eliminate invasives and replace with
native species, and
- ensure that educational policies are consistent between the
Cities of Kalamazoo and Portage.
Stretches # 5, 6,
7 (average score of 25.33 points)
Description
These three segments are treated together here due to their similarities
in scoring, features and consistencies. Beginning at Oakland Drive
the creek flows to the end of Timberlane Road (Stretches #5 and
#6), and continues (Stretch #7) along the south of City of Kalamazoo
Well Field #9 to De Haan Road. High scores are the result of infiltration
available in upland areas, quality in-stream conditions, woodland
riparian vegetation in many sections, wetlands and floodplain areas,
protected space within the well field and the wellhead protection
program.
Impacts
Noted impacts include riparian properties with mowed lawns to the
edge of the creek, runoff from I-94 reaching the creek and a pending,
large development within the narrow parcel between the highway and
the creek that could create a substantial reduction in floodplain
area and existing vegetation that buffers and shades the creek.
Recommendations
- educate riparians on vegetative techniques to protect the water
quality in the creek,
- maintain wellhead protection in and around the well field,
- ensure that any development will protect the creek and adjacent
property by not eliminating all existing vegetation,
- insist that any new development either treat stormwater before
it enters the creek, appropriately handle the stormwater on-site,
or both, and
- only allow future development that maintains the high scores
of these stretches.
Stretch # 8 (7 points)
Description
This creek stretch passes through and is affected by one of the
increasingly urbanized areas of the City of Portage, as indicated
by the low score.
Impacts
Though some natural vegetation remains along portions of the creek,
cumulative threats to water quality have begun to mount. Recent
commercial developments and their substantial impervious components,
including West Fork Crossing Road, Bennigan's Restaurant, Gander
Mountain Sports, Hooters Restaurant and Lowes Home Improvement Store,
have added to the load contributed by the Meijer's superstore.
Recommendations
- work with Gander Mountain to protect the creek as a usable resource
in their back yard (demonstrate fishing gear, etc.) and
- explore the potential for the installation of swales and rain
garden-type structures to replace or reduce the reliance upon
stormwater outlets.
Stretch #9 (9 points)
Description
The creek flows between a large parking lot and apartment buildings
before traveling through residential properties on the north side
of Pratt Road. It then crosses under Pratt Road and flows through
the Candlewyk Apartments property. One of the positives of this
stretch is that a single property owner is responsible for most
of the riparian land. The Candlewyk Apartments management maintains
an open channel for the creek and does not mow within these confines.
Impacts
There are many invasives among the riparian vegetation at the Candlewyk
Apartments property. Along Pratt Road there are riparian management
issues that need to be addressed through education. Erosion was
noted near the Big Lots parking lot.
Recommendations
The grassed areas of Candlewyk Apartments provide an opportunity
for infiltration. Existing erosion problems along parking lots,
road crossings and outlets should be addressed in operations and
maintenance practices. Assistance may be provided through small
grants to help stimulate these actions. Creation of grassed swales,
changes in mowing practices and road and parking lot sweeping practices
would improve water quality in the creek. The parking lot in front
of Big Lots, on Kilgore Road, presents an additional opportunity,
even though the creek here is piped underground. Given the size
of the lot and its limited usage, it is recommended that pervious
areas for storm water infiltration, rather than direct discharge
to the creek, be created.
Stretch #10 (27 points)
Description
The last stretch of the West Fork of Portage Creek flows through
the City of Kalamazoo Blanche Hull Preserve. This former estate
has both extensive upland areas for infiltration as well as tracts
of wooded uplands, forested wetlands and floodplains. The substrate
shows both rock and gravel. All these conditions contribute to the
high scoring of this site.
Impacts
Realities of the site also include storm water contributions from
both Burdick Street and Kilgore Road, erosion and litter inputs
at the Burdick Street culvert and rail road crossings.
Recommendations
Maintain the high quality and character of the parcel and incorporate
educational signage. The Portage Bicentennial Trail terminates at
this location, where the West Fork merges with Portage Creek. The
City of Kalamazoo has plans to continue a similar trail for biking
and hiking from this point into the city. As this trail is developed,
the physical and biological character of the creek must be considered.
Opportunities will exist for education, vegetative restoration and
alternative storm water handling techniques. All efforts should
enhance the experiences of the users, improve characteristics of
the vegetation and protect the creek's water quality.
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