Road Stream Crossing Site AUS_CR037

Au Sable River Watershed, Tributary of Bright Lake Creek
Grayling Twp, Crawford County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.70539 , -84.71813
T27N R03W Sec 30
Owned by State
Fish Passability 0.9
Total Erosion: 0.9045 tons/year
Severity: Moderate
Year Inventoried: 2013
Crossing Information
Type of Crossing: Other
Structure Shape: Pipe Arch,Open Bottom Arch
Inlet Type: Apron
Outlet Type: Outlet Apron
Structure Material: Concrete
Structure Substrate: mixture
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 108 ft. , Width 4.2 ft. , Height 2 ft.
Percentage Plugged: Inlet: 26% to 50% Outlet: Outlet In Pipe: 1% to 25%
Structure Inlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured at the Surface (with Float Test)
Stream Information
Stream Flow: None
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 24 ft.
Wetted Width: 4 ft.
Water Velocity: 0 ft./sec. (Measured with Float Test)
Dominant Substrate: Organics
Road Information
Paved State Road
Road Condition: Good
Road Width at Culvert: 48 ft.
Location of Low Point: Other
Runoff Path: Ditch
Fill Depth: 1.5 ft.
Slope: More than 1:2
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: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.9045 tons/year
Erosion Information
Total Erosion at Crossing: 0.9045 tons/year
Extent of Erosion: Minor
Summary Information
Fish Passability 0.9
These non-native species were observerd at this site: Spotted Knapweed