Road Stream Crossing Site PLT-P-6

Platte River Watershed, North Branch of Platte River
Indian Hill Rd
Platte Twp, Benzie County
Information collected by:
GPS Coordinates: 44.70425 , -86.04153
T27 R14 Sec 31
Adjacent Land Owned by Private
Severity: Moderate
Cost: $260,000.00
Site Location
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Road Width at Culvert: 32 ft.
Road Surface: Paved
Maintenance: year around
Low Point: Other
Existing Drainage Control? yes
Any Failings? no
Type of Crossing: culvert(s) (twin culvert)
Is this crossing constricted? no
Are there adjacent wetlands? yes
Left Approach
Length: 500 ft.
Slope: 6-10%
Vegetation: heavy
Right Approach
Length: 300 ft.
Slope: 1-5%
Vegetation: heavy
Culvert Information
Length: 80 ft.
Diameter: 3 ft.
Material: galvanized
Condition :good
Flow: fish passage problem
Fill Depth: 13 ft.
Embankment Slope: 1:1
Fill Depth: 12 ft.
Embankment Slope: vertical
Stream Information
Stream Width: 12 ft.
Stream Depth: 2 in.
Stream Current: moderate
Stream Substrate: sand
Stream Width: 15 ft.
Stream Depth: 1.2 in.
Stream Current: moderate
Stream Substrate: sand,gravel
Erosion Information
Is there Streambank erosion beside the crossing? no
Is there embankment erosion? no
Is there erosion at the culvert outlet? yes
Is there erosion at the shoulder and/or ditch? no
Is there pooling at the outlet? yes
Is there sand over the crossing? no
Extent of Erosion: moderate
Recommended Treatments
Action Recommended? no
Add pavement? no
Pave Left Approach: 0 Lineal Feet
Pave Right Approach: 0 Lineal Feet
Add paved raised edge? no
Number of erosion control structures: 0
Number of sediment basins: 0
Number of diversion outlets: 0
Increase fill? no
Replace culvert(s)? yes
Extend culvert(s)? no
Lineal feet to extend: 0
Comments: The stream is constricted causing in increased flow velocity which results in erosion and fish passage issues.
Total Points:0
This page last updated on 2/9/2022.