Road Stream Crossing Site AUS_OS039
Au Sable River Watershed, West Branch Big Creek
Waterwheel Ct
Big Creek Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.6232
, -84.2784
T26N
R01E
Sec 23,26
Owned by Private
Fish Passability 0.9
Total Erosion: 8.8918 tons/year
Severity: Severe
Year Inventoried: 2013
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Outlet Type: At Stream Grade
Structure Material: Wood
General Conditions: Good
Dimensions of Structure: Length 27 ft.
, Width 25 ft.
, Height 4.5 ft.
Structure Inlet
Water Depth: 1.5 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 1.5 ft.
Water Velocity*: 1 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: 1 ft.
Bankfull Width: 36 ft.
Wetted Width: 30 ft.
Water Velocity: 0.62 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 32 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.3 ft.
Slope: Vertical
Downstream
Fill Depth: 2.3 ft.
Slope: Vertical
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 5.0248 tons/year
Right Approach
Length: 798 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.55
Erosion: 3.867 tons/year
Erosion Information
Total Erosion at Crossing: 8.8918 tons/year
Summary Information
Fish Passability 0.9
These non-native species were observerd at this site: Queen Anne's Lace