Road Stream Crossing Site AUS_CR023
Au Sable River Watershed, Tributary of East Branch Au Sable River
M-93
Grayling Twp,
Crawford County
Information collected by:
Site Location
GPS Coordinates: 44.7365
, -84.65887
T27N
R03W
Sec 15
Owned by State
Fish Passability 0
Total Erosion: 0.4785 tons/year
Severity: Severe
Year Inventoried: 2013
Crossing Information
Type of Crossing: Other
Structure Shape: Ellipse
Inlet Type: Apron
Outlet Type: Outlet Apron
Structure Material: Concrete
Structure Substrate: mixture
General Conditions: Poor
Structure Interior: smooth
Dimensions of Structure: Length 74 ft.
, Width 2.2 ft.
, Height 0.7 ft.
Water Depth: 0 ft.
Embedded Depth of Structure: 1.3 ft.
Water Velocity*: 0 ft./sec.
Water Depth: 0 ft.
Embedded Depth of Structure: 0.5 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: 0.2 ft.
Bankfull Width: 15 ft.
Wetted Width: 10 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: 43 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 4 ft.
Slope: 1:2
Length: 0 ft.
Slope: 0%
Vegetation: Heavy
LS Factor: 0
Erosion: 0 tons/year
Right Approach
Length: 640 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.526
Erosion: 0.4785 tons/year
Erosion Information
Total Erosion at Crossing: 0.4785 tons/year
Extent of Erosion: Minor
Notes: Some erosion (mostly gravel) from road shoulder.
Summary Information
Fish Passability 0
A future visit to this site is recommended. Culvert is entirely plugged and doesn't allow water or anything else to pass through.
These non-native species were observerd at this site: Spotted Knapweed