Road Stream Crossing Site PLT-B-3

Platte River Watershed, Unnamed Tributary to Little Platte Lake
US 31
Benzonia Twp, Benzie County
Information collected by:
GPS Coordinates: 44.66385 , -86.05907
T26 R15 Sec 12
Adjacent Land Owned by Private
Severity: Moderate
Cost: $0.00
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? no
Any Failings? no
Type of Crossing: culvert(s) (Concrete Box)
Is this crossing constricted? no
Are there adjacent wetlands? yes
Comments: -Sediment deposits in structure -Increased stream volume could result in sheet flow thru structure
Left Approach
Length: 500 ft.
Slope: 1-5%
Vegetation: heavy
Right Approach
Length: 200 ft.
Slope: 0%
Vegetation: heavy
Culvert Information
Length: 50 ft.
Diameter: 5 ft.
Material: concrete
Condition :fair
Flow: fish passage problem
Fill Depth: 11 ft.
Embankment Slope: 1:1
Fill Depth: 11 ft.
Embankment Slope: 1:1
Stream Information
Stream Width: 2.5 ft.
Stream Depth: 9 in.
Stream Current: slow
Stream Substrate: sand,muck
Stream Width: 2 ft.
Stream Depth: 0.1 in.
Stream Current: slow
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? 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? yes
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)? no
Extend culvert(s)? no
Lineal feet to extend: 0
Total Points:0
This page last updated on 2/9/2022.