Road Stream Crossing Site CLHW_BC-026

Big Creek Watershed, Unnamed Drain to Big Creek
S Walker Rd
Arenac Twp, Arenac County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.07239 , -83.84718
T19N R5E Sec 3
Owned by Private
Fish Passability 0
Perch Height: 1 ft.
Total Erosion: 0.1983 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: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 54 ft. , Width 4 ft. , Height 4.1 ft.
Perch Height: 1 ft.
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.8 ft./sec.
Structure Outlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.8 ft./sec.
*Water Velocities were measured at the Surface (with Float Test)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 22 ft. , Width 12 ft. , Depth 1.6 ft.
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 13 ft.
Wetted Width: 7 ft.
Water Velocity: 1 ft./sec. (Measured with Float Test)
Dominant Substrate: Sand
Road Information
Paved County Road
Road Condition: Fair
Road Width at Culvert: 24 ft.
Location of Low Point: Other
Runoff Path: Ditch
Fill Depth: 1.5 ft.
Slope: More than 1:2
Fill Depth: 1.1 ft.
Slope: 1:2
Left Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.5
Erosion: 0.1983 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: 0.1983 tons/year
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Reaching Stream?
Left Upstream Embankment
10 ft.
5.5 ft.
5.3 ft.
Right Downstream Embankment
10 ft.
4 ft.
5.5 ft.
Summary Information
Fish Passability 0