Road Stream Crossing Site CLHW_BC-027

Big Creek Watershed, Unnamed Drain to Big Creek
Jose Rd
Arenac Twp, Arenac County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.0695 , -83.83716
T19N R5E Sec 2
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 1.6475 tons/year
Severity: Severe
Year Inventoried: 2016
Site ID
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: Cascade over Riprap
Structure Material: Metal
Structure Substrate: None
General Conditions: Poor
Structure Interior: corrugated
Structure is Rusted through
Dimensions of Structure: Length 31 ft. , Width 4 ft. , Height 4 ft.
Percentage Plugged: Inlet: 26% to 50% Outlet: 0% In Pipe: 0%
Percentage Crushed: Inlet: 0% Outlet: 0% In Pipe: 1% to 25%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.8 ft./sec.
Structure Outlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.8 ft./sec.
*Water Velocities were measured at the Surface (with Float Test)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 16 ft. , Width 7 ft. , Depth 0.5 ft.
Upstream Pond: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Riffle Information
Water Depth: 0.5 ft.
Bankfull Width: 13 ft.
Wetted Width: 4 ft.
Water Velocity: 1.1 ft./sec. (Measured with Float Test)
Dominant Substrate: Sand
Road Information
Gravel County Road
Road Condition: Poor
Road Width at Culvert: 20 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Fill Depth: 1.5 ft.
Slope: More than 1:2
Fill Depth: 1.2 ft.
Slope: More than 1:2
Left Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.5
Erosion: 1.3774 tons/year
Right Approach
Length: 22 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0061 tons/year
Erosion Information
Total Erosion at Crossing: 1.6475 tons/year
Extent of Erosion: Severe
Erosion is occurring and corrective actions can be installed to address the problem.
Notes: Could benefit from riprap stablization
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Reaching Stream?
Left Upstream Embankment
3 ft.
2 ft.
4 ft.
Summary Information
Fish Passability 0.5