Road Stream Crossing Site PLT-P-1

Platte River Watershed, North Branch of Platte River
Valley Rd
Platte Twp, Benzie County
Information collected by:
GPS Coordinates: 44.72305 , -85.99809
T27 R14 Sec 22
Adjacent Land Owned by Private
Severity: Moderate
Cost: $80,000.00
Site Location
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Road Width at Culvert: 40 ft.
Road Surface: Paved
Maintenance: year around
Low Point: At Stream
Existing Drainage Control? yes
Any Failings? yes
Type of Crossing: culvert(s) (single culvert)
Is this crossing constricted? no
Are there adjacent wetlands? yes
Comments: Both inlet and outlet are submerged
Left Approach
Length: 200 ft.
Slope: 0%
Vegetation: heavy
Right Approach
Length: 500 ft.
Slope: >10%
Vegetation: heavy
Culvert Information
Length: 40 ft.
Diameter: 0.7 ft.
Material: concrete
Condition :poor
Flow: fish passage problem
Fill Depth: 10 ft.
Embankment Slope: 1:1
Fill Depth: 6 ft.
Embankment Slope: 1:1
Stream Information
Stream Width: 4 ft.
Stream Depth: 0.6 in.
Stream Current: moderate
Stream Substrate: sand
Stream Width: 4 ft.
Stream Depth: 0.7 in.
Stream Current: moderate
Stream Substrate: sand
Erosion Information
Is there Streambank erosion beside the crossing? yes
Is there embankment erosion? no
Is there erosion at the culvert outlet? no
Is there erosion at the shoulder and/or ditch? no
Is there pooling at the outlet? no
Is there sand over the crossing? no
Extent of Erosion: minor
Recommended Treatments
Action Recommended? no
Add pavement? no
Pave Left Approach: 0 Lineal Feet
Pave Right Approach: 0 Lineal Feet
Add paved raised edge? yes
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 culvert is submerged, obstructed and undersized, so should be replaced with adequately sized structure. The road drainage should also be repaired due to the steep grade of the approach.
Total Points:0
This page last updated on 2/9/2022.