Road Stream Crossing Site AUS_CR017

Au Sable River Watershed, Tributary of East Branch Au Sable River
County Rd 612
Lovells Twp, Crawford County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.79023 , -84.61432
T28N R03W Sec 25
Owned by Private
State
Fish Passability 0.9
Total Erosion: 0.1904 tons/year
Severity: Moderate
Year Inventoried: 2013
Crossing Information
Type of Crossing: Other
Structure Shape: Round
Inlet Type: Apron
Outlet Type: At Stream Grade
Structure Material: Plastic
Structure Substrate: Sand
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 65 ft. , Width 2 ft. , Height 2 ft.
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.3 ft./sec.
Structure Outlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured at the Surface (with Float Test)
Additional Comments
State land to the north and private to the south of the crossing.
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 22 ft. , Width 16 ft. , Depth 2.7 ft.
Riffle Information
Water Depth: 0.2 ft.
Bankfull Width: 19.5 ft.
Wetted Width: 9 ft.
Water Velocity: 0 ft./sec. (Measured with Float Test)
Dominant Substrate: Organics
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 30 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2 ft.
Slope: More than 1:2
Downstream
Fill Depth: 3 ft.
Slope: More than 1:2
Length: 0 ft.
Slope: 0%
Vegetation: Heavy
LS Factor: 0
Erosion: 0 tons/year
Right Approach
Length: 400 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.48
Erosion: 0.1904 tons/year
Erosion Information
Total Erosion at Crossing: 0.1904 tons/year
Extent of Erosion: Minor
Summary Information
Fish Passability 0.9
A future visit to this site is recommended. Lots of debris in the way of water flow but the stream itself might not be suitable for fish passage to begin with.
These non-native species were observerd at this site: Spotted Knapweed

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