Road Stream Crossing Site B-069

Betsie River Watershed, Rice Creek
Grace Rd
Benzonia Twp, Benzie County
Information collected by:
GPS Coordinates: 44.6034917 , -86.11503948
T26N R15W Sec 34
Adjacent Land Owned by Private
Severity: Moderate
Cost: $18,000.00
Site Location
 
Inlet
Outlet
Road Approach - Left
Road Approach - Right
Crossing Information
Road Width at Culvert: 22 ft.
Road Surface: Paved
Maintenance: year around
Low Point: 50 ft. left approach
Existing Drainage Control? no
Any Failings? no
Type of Crossing: culvert(s) (single culvert)
Is this crossing constricted? no
Are there adjacent wetlands? yes
Comments: Pond at inlet and outlet.
Approaches
Left Approach
Length: 1300 ft.
Slope: 1-5%
Vegetation: partial
Right Approach
Length: 260 ft.
Slope: 1-5%
Vegetation: partial
Culvert Information
Length: 35 ft.
Diameter: 48 ft.
Material: concrete
Condition :fair
Flow: clear
Embankments
Upstream
Fill Depth: 7 ft.
Embankment Slope: 1:1
Downstream
Fill Depth: 5 ft.
Embankment Slope: 1:1
Stream Information
Upstream
Stream Width: 90 ft.
Stream Depth: 3 in.
Stream Current: slow
Downstream
Stream Width: 90 ft.
Stream Depth: 3 in.
Stream Current: slow
Erosion Information
Conditions
Is there Streambank erosion beside the crossing? no
Is there embankment erosion? yes
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
Other Conditions: Pond restricting natural flow.
 
Extent of Erosion: moderate
Cause of Erosion: Large ponds at inlet, outlet.
Recommended Treatments
Action Recommended? no
Add pavement? no
Add paved raised edge? no
Number of erosion control structures: 0
Number of sediment basins: 1
Number of diversion outlets: 0
Increase fill? no
Replace culvert(s)? no
Dimensions of replacement: 1
Extend culvert(s)? no
Lineal feet to extend: 1
Other Treatments: Revegetate & regrade embankment. Eradicate ponds for natural flow.
Comments: Ponds warming water and causing embankment erosion.
 
Severity:Moderate
This page last updated on 10/16/2014.