Montour Run Watershed Assessment & Implementation Plan

and Streambank Restoration
Priority 4 1,6
Miles
NORTH FAYETTE
FINDLAY
5,
focused on stream bank restoration locations based on directed into bioretention swales that could be built on
CORAOPOLIS
Tree Can opy in in th the e Riparian Bu Bu ffer ffer (%) (%) ≤ 21 ≤7
21 7
1 - Ban k Stabil ization 1 - Ban k Stabil ization
the visual assessment and publicly accessible parcels (Figure
3.4.3). ≤ 434
2 - Debris Jam Rem oval
existing grassy areas (estimated cost for 3,000 linear feet
2-C Findlay Priority Township 3 Public
Priority 4
20 5 8 5 2
≤ 20
≤ 434
2 - Debris Jam Rem oval
MOON
2 5
Works Department Bioretention
1,5
2
1
1,3 5
approximately $150,000).
P
40
≤ 868
3 - H om eown er Ou treach
Priority 5
≤ 40
3 - H om eown er Ou treach
2-E Riparian Buffer and
5 5
≤ 868
Priority 5
4
5
601
Priority 1 ≤ 1 303
4 - I m prove BMP 4 - I m prove BMP
Streambank Restoration
≤ 60
3A: Reinforce ≤ 1 303 the riparian 5 buffer - Mu n icipal through ity
≤ 80
5 Mainten - Mu tree n icipal plantings
ceity Mainten an ce3C: Wilson Elementary School grounds rain gardens and
≤ 21 72
Priority 2
≤ 80
and stream ≤ 21 72 restoration efforts 6 - Riparian on both Bu ffer sides I m provem of the en stream. t
bioswales. Grassy parking islands and landscaping Priority 4pro-
vides opportunities to detain, infiltrate, and filter storm-
≤ 1 00
NORTH FAYETTE
6 - Riparian Bu ffer I m provem en t
0 0.35 0.7 1.4
≤ 24545
≤ 1 00
Priority NORTH FAYETTE 2 These 7 - Fu rth er Assessm en t
≤riparian 24545 areas are owned by Allegheny 7 - Fu rthCounty. er Assessm A en t
Miles
NORTH FAYETTE
Esri, HERE
Model ed Sedim en t (l bs/yr)
≤ 55390
FIN
visual assessment of this stretch identified 20 individual
areas of streambank with visible erosion, no riparian on this site would also provide tremendous educational
water runoff from the buildings and parking lots. Projects
2-A Stream and Model ed Sedim en t (l bs/yr)
≤ 55390
≤ 0.05
2-B Findlay Township Building
Bank Restoration
NORTH FAYETTE ≤ 0.05
buffer, or was in some way compromised. Reinforcing the opportunities for biology/environmental studies/gardening
classes or clubs.
Stormwater Detention
Tree Can opy MOON in th e Riparian Bu ffer INDEPENDENCE (%)
≤ 21 7
1
buffer
- Ban k Stabil
in this
ization
Demonstration Project
area would help to decrease erosion and
≤ 20
≤ 434
2 - Debris Jam Rem oval
increase resilience. To address 2,000 linear feet of riparian
≤ 40 1,6
INDEPENDENCE
FINDLAY
Priority ≤ 868
Priority 3
3 - H om eown er Ou treach
3
area will cost approximately $200,000.
3D: Roadside parcels/park along the South Fork of Montour
Run between North Star Road. and Santiago Road.
4 - I m prove BMP
≤ 60
≤ 1 303
5 - Mu n icipal ity Mainten an ce
MOON
FINDLAY
≤ 80
≤ 21 72
6 3B: - Riparian West Allegheny Bu ffer I m provem Middle en School t and High School
These parcels are designated as a public park according
2-D Riparian Buffer
0 0.23 0.45 ≤0.9
1 00
2-C Findlay Township Campuses. This hilltop complex contains ample grassy to County data. Augmenting the riparian buffer, and
≤ 24545
Public
7 - Fu rth er Assessm en t
and Streambank Restoration ROBINSON
Miles
Esri, HERE
Works Dept. Bioretention
parking islands and school property that could be used repairing MOON deeply incised streambanks could help increase
1,6
Model ed Sedim en t (l bs/yr)
≤ 55390
to detain, infiltrate and filter stormwater runoff from the resiliency Priority along 1 this stream corridor.
Modeled Sediment ≤ 0.05 (lbs/yr)
buildings and parking lots. Projects on this site would
≤1 99
1 - Bank Stabilization
Priority 2
also provide tremendous educational opportunities for 3E: Findlay Township Community Building Green Infrastructure
Demonstration Project. The municipality owned
2 - Debris Jam Removal
≤397
biology/environmental studies/gardening classes or Priority 4
3 - Homeowner Outreach
2-E Riparian Buffer andINDEPENDENCE
≤794
clubs. Three basins could be explored for retrofitting Priority 1 to Activity FINDLAY Center serves the surrounding area, not 5, just
Priority 1
Priority 1
4 - Improve BMP
Streambank Restoration ≤1190
5 - Municipality Maintenance
increase bioretention and potential habitat (estimated the township of Imperial. A rain garden at this location
5 8 5 2
cost, $240,000). Similarly, parking lot runoff could 2-A be Stream and Bank would be a highly visible example of Green Infrastructure
2 5
≤2976
6 - Riparian Buffer Improvement
2
0 0.23
1
1,3 5
NORTH FAYETTE
1,5
0 0.35 0.7 1.4
NORTH FAYETTE 2-B Findlay 7 - Further Township Assessment Building
Restoration
0.45 5 0.9
ROBINSON 5
5 5
Miles
NORTH 2-C ≤5555 Findlay FAYETTE Township Public
Esri, HERE
Stormwater Detention
4
Miles
Works
FINDLAY
≤8530 Dept. Bioretention
MOON
Demonstration Project
1,6
Figure 3.4.2-Priority recommendation sites for ≤50585 Subwatershed Area 2-North Fork and West Enlow. Sites based on
Modeled Sediment (lbs/yr) Priority 2
pollution accumulation Tree Can opy in thmodeling e Riparian Bu (TSS ffer and (%) Riparian Buffer ≤ 21 7 shown) and accessibility. 1 - Ban k Stabil ization
Priority 4
FINDLAY ≤1 99
≤ 20
≤ 434
2 - Debris Jam Rem oval
1,6
3-A Streambank and
≤397
be detained. Located ≤ 40
3 - H om eown er Ou treach
in the headwaters of the watershed, ≤ 868 space between stream and road is scrubby grass. Establishing
a more robust riparian buffer along this corridor is
3-D Stream Riparian Buffer
≤794
4 - I m prove BMP 2-D Riparian Buffer and
Riparian Restoration
NORTH FAYETTE
valuable benefits ≤would 60 be derived in the form of public
education. and ≤improving 80 the adjacent area. A 3,000 ≤ 21 72 estimated to cost $260,000. 6 - Riparian Bu ffer I m provem en t
≤ 1 303
5 - Mu n icipal ity Mainten an Streambank ce Restoration
and Streambank Restoration
≤1190
2-A Stream and Bank
square foot rain garden ≤ 1 00 on this site will cost an estimated ≤ 24545
7 - Fu rth er Assessm en t
FINDLAY
5,
≤2976 Priority 3
2-B Findlay Township Building
Restoration
$174,000.
Area 3: South Fork Montour Run: The South Fork of
5 8 5
Model ed Sedim en t (l bs/yr)
Stormwater ≤ 55390 Detention
2
Montour Run did not undergo Priority visual 1 assessment because
2
≤5555
2 5
1,5 1
1,3 5
2C: The Township ≤of 0.05
Demonstration Project
Findlay Public Works Department on of access issues. Prioritized areas in this sub-watershed
5 5
5 4
5
≤8530
Clinton Road includes a large parcel with gravel parking group were identified by spatial analysis of the pollution
0 0.23 0.45 0.9
ROBINSON
Miles
≤50585
lots, expanses of roof, and an existing detention basin. accumulation modeling and examination FINDLAY within publicly Priority 51,6
NORTH FAYETTE
The INDEPENDENCE detention basin should be evaluated for retrofitting
to retain water and nutrients. Estimated costs are
0 0.2 0.4 0.8 1.2 1.6
3-B West Allegheny
Priority 4 accessible parcels.
FINDLAY
Modeled Sediment (lbs/yr)
2-D Riparian Buffer and
Esri, HERE
$80,000.
This sub-watershed ROBINSON group does contain several large Miles
≤1 99
1 - Bank Stabilization
School Grounds
Streambank Restoration
2-E Riparian Buffer and
industrial properties where GI could help to reduce stormwater
runoff. Potential focus partners include:
3-C Wilson Elementary
≤397 NORTH FAYETTE
Green Infrastructure 2 - Debris Jam Removal
2-C Findlay Township Public
Streambank Restoration
NORTH FAYETTE
3 - Homeowner Outreach
2D: Restore riparian buffer and stream banks along
Works Dept. Bioretention
MOON
2
1, 5,8 2 5 ≤794
4 - Improve BMP
School Grounds Green
stream in conjunction with the Airport Authority. The
1. Amazon 0 0.2 0.4 0.8 1.2 1.6 5 5
3 5
Infrastructure
≤1190
5 - Municipality Maintenance
Esri, HERE
streambanks and near-stream regions would benefit from 2. Imperial Parking ROBINSON Lot retrofits, Findlay Community 1,5 5
Miles 3,4,6,7
5 1
≤2976 3-E Findlay Township Community
5 5 1,
6 - Riparian Buffer Improvement
increased tree cover and natural bank armoring from willow
plantings, in particular. Approximately 400 linear feet 3. Lenox Court retention pond retrofit
Demonstration Project
Center and Agway
4 3
Building Green Infrastructure
7 - Further Assessment
≤5555
of riparian buffer plantings along this stretch is estimated 4. Birchwood Land Pond retrofit
0 0.23 0.45 0.9
≤8530
Esri, HERE
ROBINSON
Miles
to cost $80,000.
5. West Allegheny School District
≤50585
Modeled Sediment (lbs/yr)
2-A Stream and Bank
≤1 98
2E: Restore riparian buffer and stream banks along Imperial
/ Burgettstown Road. In particular, the road introduc-
and South Fork, and continued along the main stem.
Visual assessments began at the confluence of the North
Figure 3.4.3-Priority recommendation sites for Subwatershed Area 3-South Fork Montour Run. Sites based on
2-B Findlay Township Building
Restoration
1 - Bank Stabilization
2-E Riparian Buffer and
≤396
pollution accumulation modeling (Sediment shown) and accessibility.
Priority 4
Stormwater Detention
2 - Debris Jam Removal
Streambank Restoration
es stormwater runoff directly to the stream. Currently the Prioritized project areas in this sub-watershed group are
≤793 NORTH FAYETTE
3 - Homeowner Outreach
Demonstration Project
≤991 Priority 2
4 - Improve BMP
52 | Future Goals & Recommendations0 0.2 0.4 0.8 1.2 1.6
≤1190
Montour 5 - Municipality Run Watershed Maintenance Assessment & Implementation Plan | 53
Esri, HERE
ROBINSON
Miles
NORTH FAYETTE
≤1 587
6 - Riparian Buffer Improvement
FINDLAY 1,6
7 - Further Assessment
≤2975
Esri, HERE