Road Stream Crossing Site B-019

Betsie River Watershed, Betsie River
Thompsonville Rd
Colfax Twp, Benzie County
Information collected by:
GPS Coordinates: 44.5464155 , -85.9382051
T25N R13W Sec 19
Adjacent Land Owned by Private
Severity: Moderate
Cost: $100,000.00
Site Location
 
Inlet
Outlet
Road Approach - Left
Road Approach - Right
Crossing Information
Road Width at Culvert: 34 ft.
Road Surface: Paved
Maintenance: year around
Low Point: At Stream
Existing Drainage Control? yes
Any Failings? no
Type of Crossing: culvert(s) (twin culvert)
Is this crossing constricted? no
Are there adjacent wetlands? yes
Approaches
Left Approach
Length: 0 ft.
Slope: 0%
Vegetation: heavy
Right Approach
Length: 300 ft.
Slope: 1-5%
Vegetation: heavy
Culvert Information
Length: 56 ft.
Diameter: 72 ft.
Material: galvanized
Condition :fair
Flow: clear
Embankments
Upstream
Fill Depth: 12 ft.
Embankment Slope: 1:1
Downstream
Fill Depth: 15 ft.
Embankment Slope: 1:1
Stream Information
Upstream
Stream Width: 30 ft.
Stream Depth: 2 in.
Stream Current: moderate
Stream Substrate: sand
Downstream
Stream Width: 45 ft.
Stream Depth: 3 in.
Stream Current: moderate
Stream Substrate: sand
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
 
Extent of Erosion: moderate
Cause of Erosion: Culverts too small and short.
Recommended Treatments
Action Recommended? no
Add pavement? no
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
Dimensions of replacement: 2
Extend culvert(s)? no
Lineal feet to extend: 2
Other Treatments: Bridge would be ideal.
 
Severity:Moderate
This page last updated on 10/16/2014.