Road Stream Crossing Site CLHW_LBR-005
Little Black River Watershed, Little Black River
Campbell Rd
Beaugrand Twp,
Cheboygan County
Information collected by:
Site Location
GPS Coordinates: 45.66341
, -84.53881
T38N
R2W
Sec 22
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 3.7091 tons/year
Severity: Severe
Year Inventoried: 2016
Site ID
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: Pipe Arch
Inlet Type: Headwall
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Structure is Rusted through
Dimensions of Structure: Length 138 ft.
, Width 7.5 ft.
, Height 5.8 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 2.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2 ft./sec.
Structure Outlet
Water Depth: 3.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Additional Comments
Headwall is crumbling
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 2.5 ft.
Bankfull Width: 20 ft.
Wetted Width: 17.6 ft.
Water Velocity: 1.1 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 22 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 6.7 ft.
Slope: More than 1:2
Downstream
Fill Depth: 5.8 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 400 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.53
Erosion: 3.7091 tons/year
Erosion Information
Total Erosion at Crossing: 3.7091 tons/year
Summary Information
Fish Passability 0.5
Fish Passage is an area of concern for this site.
Could look to future replacement of crossing