Road Stream Crossing Site RIF_OG275

Rifle River Watershed, Gamble Creek
Weir Rd (rec)
Cumming Twp, Ogemaw County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.40454 , -84.03027
T23N R3E Sec 11
Fish Passability 1
Structure is NOT Perched
Total Erosion: 0.4589 tons/year
Severity: Minor
Year Inventoried: 2012
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Structure Shape: Square/Rectangle
Inlet Type: Wingwall 10-30 Degree
Outlet Type: At Stream Grade
Structure Material: Wood
Structure Substrate: Sand
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 27 ft. , Width 51 ft. , Height 7 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 1.2 ft.
Embedded Depth of Structure: 0 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
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: 1 ft.
Bankfull Width: 36 ft.
Wetted Width: 34 ft.
Water Velocity: 1 ft./sec. (Measured with Float Test)
Dominant Substrate: Sand
Road Information
Native Surface State Road
Road Condition: Poor
Road Width at Culvert: 13.3 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 0.9 ft.
Slope: Vertical
Downstream
Fill Depth: 1 ft.
Slope: Vertical
Approaches
Left Approach
Length: 180 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.418
Erosion: 0.2757 tons/year
Right Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.1832 tons/year
Erosion Information
Total Erosion at Crossing: 0.4589 tons/year
Extent of Erosion: Stabilized
Erosion is occurring and corrective actions can be installed to address the problem.
Notes: riprap installed
Summary Information
Fish Passability 1