Road Stream Crossing Site AUS_CR054
Au Sable River Watershed, Tributary of Au Sable River
Wakely Bridge Rd
Grayling Twp,
Crawford County
Information collected by:
Site Location
GPS Coordinates: 44.66088
, -84.50716
T26N
R02W
Sec 12
Owned by Private
Fish Passability 0
Structure is NOT Perched
Total Erosion: 6.3109 tons/year
Severity: Severe
Year Inventoried: 2013
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Poor
Structure Interior: corrugated
Dimensions of Structure: Length 52 ft.
, Width 1.6 ft.
, Height 1.6 ft.
Percentage Plugged:
Inlet: 1% to 25%
Outlet: 0%
In Pipe: 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.81 ft./sec.
Structure Outlet
Water Depth: 1.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.08 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 10 ft.
, Width 8 ft.
, Depth 1.4 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 12.5 ft.
Wetted Width: 3.8 ft.
Water Velocity: 2.38 ft./sec.
(Measured with Float Test)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Fair
Road Width at Culvert: 33 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.3 ft.
Slope: 1:2
Downstream
Fill Depth: 4 ft.
Slope: 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: More Than 10%
Vegetation: Heavy
LS Factor: 5.785
Erosion: 6.3109 tons/year
Right Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 6.3109 tons/year
Extent of Erosion: Minor
Notes: From road traffic.
Summary Information
Fish Passability 0
A future visit to this site is recommended. To check up on rusted culvert, and scour pool.