Road Stream Crossing Site AUS_CR036
Au Sable River Watershed, Tributary of Bright Lake Creek
M-93
Grayling Twp,
Crawford County
Information collected by:
Site Location
GPS Coordinates: 44.7071
, -84.71471
T27N
R03W
Sec 30
Owned by State
Fish Passability 0.9
Total Erosion: 0.8856 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 96 ft.
, Width 3 ft.
, Height 1.6 ft.
Structure Inlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 1.1 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: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 16 ft.
Wetted Width: 7.5 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: 47 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 3.3 ft.
Slope: More than 1:2
Downstream
Fill Depth: 3 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.8856 tons/year
Length: 0 ft.
Slope: 0%
Vegetation: Heavy
LS Factor: 0
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 0.8856 tons/year
Extent of Erosion: Minor
Notes: Gravel from road shoulder
Summary Information
Fish Passability 0.9
These non-native species were observerd at this site: Spotted Knapweed