Road Stream Crossing Site AUS_OS037
Au Sable River Watershed, Tributary of West Branch Big Creek
Old 144 (County 490)
Big Creek Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.59373
, -84.31207
T26N
R01E
Sec 34
Owned by Federal
Fish Passability 0.5
Total Erosion: 0.4491 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: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 58.9 ft.
, Width 1.8 ft.
, Height 1.8 ft.
Structure Inlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.51 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0.098 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: 0.1 ft.
Bankfull Width: 3.7 ft.
Wetted Width: 2.1 ft.
Water Velocity: 0.35 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Paved
Federal Road
Road Condition: Good
Road Width at Culvert: 34 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.7 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.4 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 580 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.516
Erosion: 0.3364 tons/year
Right Approach
Length: 230 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.436
Erosion: 0.1127 tons/year
Erosion Information
Total Erosion at Crossing: 0.4491 tons/year
Summary Information
Fish Passability 0.5
These non-native species were observerd at this site: Queen Anne's Lace, Spotted Knapweed