Road Stream Crossing Site AUS_OS153
Au Sable River Watershed, Big Creek
Williams Rd
Greenwood Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.83212
, -84.31338
T27N
R01E
Sec 10,15
Owned by Private
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 0.7768 tons/year
Severity: Moderate
Year Inventoried: 2013
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Ellipse
Inlet Type: Projecting
Outlet Type: Outlet Apron
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Poor
Structure Interior: corrugated
Structure is Rusted through
Dimensions of Structure: Length 62 ft.
, Width 2.4 ft.
, Height 1.8 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured at the Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.5 ft.
Bankfull Width: 249.5 ft.
Wetted Width: 1.2 ft.
Water Velocity: 0 ft./sec.
(Measured with Meter)
Dominant Substrate: Organics
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 37.9 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 3 ft.
Slope: More than 1:2
Downstream
Fill Depth: 2.8 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0626 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.7141 tons/year
Erosion Information
Total Erosion at Crossing: 0.7768 tons/year
Summary Information
Fish Passability 0.9
A future visit to this site is recommended. The culvert is in poor condition
These non-native species were observerd at this site: Spotted Knapweed, Mullein