Road Stream Crossing Site AUS_OS017
Au Sable River Watershed, Sohn Creek
Cherry Creek Rd
Big Creek Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.68071
, -84.31934
T26N
R01E
Sec 4
Owned by Private
State
State
Fish Passability 0
Total Erosion: 7.7966 tons/year
Severity: Severe
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: Round
Inlet Type: Trash Rack
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 75 ft.
, Width 3 ft.
, Height 3.2 ft.
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.33 ft./sec.
Structure Outlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.099 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 15 ft.
Wetted Width: 6 ft.
Water Velocity: 1.25 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 27 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 8 ft.
Slope: 1:1
Downstream
Fill Depth: 8 ft.
Slope: 1:2
Approaches
Left Approach
Length: 400 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.53
Erosion: 4.5521 tons/year
Right Approach
Length: 309 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.412
Erosion: 3.2446 tons/year
Erosion Information
Total Erosion at Crossing: 7.7966 tons/year
Extent of Erosion: Minor
Summary Information
Fish Passability 0
A future visit to this site is recommended. To check to see if trash rack is majorly plugged
These non-native species were observerd at this site: Spotted Knapweed, St. Johnswort, Bull Thistle, Yellow Sweet Clover