Road Stream Crossing Site PLT-G-4

Platte River Watershed, Platte River
Lake Dubonnet
Green Lake Twp, Grand Traverse County
Information collected by:
GPS Coordinates: 44.68364 , -85.8077
T26 R12 Sec 6
Adjacent Land Owned by State
Severity: Moderate
Cost: $0.00
Site Location
Downstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Road Width at Culvert: 24 ft.
Road Surface: Gravel
Maintenance: seasonal
Low Point: At Stream
Existing Drainage Control? no
Any Failings? no
Type of Crossing: Dam (Dam with Twin culvert outlet)
Is this crossing constricted? no
Are there adjacent wetlands? yes
Comments: Upstream is Lake Dubonnet
Left Approach
Length: 1056 ft.
Slope: 1-5%
Vegetation: heavy
Right Approach
Length: 528 ft.
Slope: 1-5%
Vegetation: heavy
Culvert Information
Length: 72 ft.
Diameter: 2.5 ft.
Material: concrete
Condition :fair
Flow: fish passage problem
Fill Depth: 15 ft.
Embankment Slope: vertical
Fill Depth: 11.6000003814697 ft.
Embankment Slope: 1:1
Stream Information
Stream Width: 500 ft.
Stream Depth: 6 in.
Stream Current: slow
Stream Substrate: other
Stream Width: 5.6 ft.
Stream Depth: 0.9 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? no
Is there erosion at the shoulder and/or ditch? no
Is there pooling at the outlet? yes
Is there sand over the crossing? no
Other Conditions: Pool is 1.4 ft deep
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
Other Treatments: Dam removal could be considered
Total Points:0
This page last updated on 2/9/2022.