Road Stream Crossing Site AUS_CR064
Au Sable River Watershed, Beaver Creek
Johnson Rd
Beaver Creek Twp,
Crawford County
Information collected by:
Site Location
GPS Coordinates: 44.52246
, -84.66825
T25N
R03W
Sec 34
Owned by Private
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 0.6972 tons/year
Severity: Moderate
Year Inventoried: 2013
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Ellipse
Inlet Type: Mitered
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 84 ft.
, Width 8.9 ft.
, Height 6 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 1.88 ft./sec.
Structure Outlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0.8 ft.
Water Velocity*: 1.5 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 13 ft.
, Width 20 ft.
, Depth 0.8 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.8 ft.
Bankfull Width: 17 ft.
Wetted Width: 14 ft.
Water Velocity: 1.5 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 37 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 6 ft.
Slope: More than 1:2
Downstream
Fill Depth: 5 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.6972 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: 0.6972 tons/year
Summary Information
Fish Passability 0.9
A future visit to this site is recommended. To check on scour pool downstream, and also on North bound 75, 50 feet away is another culvert with a scour pool. Placement of culvert is questionable.