Road Stream Crossing Site CLHW_LBR-022
Little Black River Watershed, West Branch Little Black River
Inverness Trail Rd
Beaugrand Twp,
Cheboygan County
Information collected by:
Site Location
GPS Coordinates: 45.66048
, -84.52879
T38N
R2W
Sec 27
Owned by Private
Fish Passability 0
Structure is NOT Perched
Total Erosion: 0.0214 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: Round
Inlet Type: Apron
Outlet Type: Outlet Apron
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 110 ft.
, Width 5.2 ft.
, Height 5.2 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.5 ft./sec.
Structure Outlet
Water Depth: 1.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.5 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 25 ft.
, Width 25 ft.
, Depth 4 ft.
Riffle Information
Water Depth: 2.5 ft.
Bankfull Width: 14 ft.
Wetted Width: 9.5 ft.
Water Velocity: 1.3 ft./sec.
(Measured with Float Test)
Dominant Substrate: Cobble
Road Information
Paved
County Road
Road Condition: Poor
Road Width at Culvert: 24 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 8.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 9 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: 75 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.36
Erosion: 0.0214 tons/year
Erosion Information
Total Erosion at Crossing: 0.0214 tons/year
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site.
Culvert is too small and fast for fish passage
A future visit to this site is recommended. to determine if site is priority