Road Stream Crossing Site UBR_MB26

Upper Black River Watershed, Gillis Creek
M-68
Forest Twp, Cheboygan County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 45.3556 , -84.3067
T34N R1E Sec 3, 10
Owned by Private
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 0.3143 tons/year
Severity: Minor
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Right
Road Approach - Left
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Open Bottom Arch
Inlet Type: Trash Rack
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Gravel
General Conditions: Good
Dimensions of Structure: Length 80 ft. , Width 2.5 ft. , Height 3.5 ft.
Percentage Plugged: Inlet: 1% to 25% Outlet: 0% In Pipe: 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.4 ft./sec.
Structure Outlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.4 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface (with Meter)
Stream Information
Stream Flow: 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: 1.2 ft.
Bankfull Width: 5.5 ft.
Wetted Width: 5.5 ft.
Water Velocity: 0.2 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved State Road
Road Condition: Good
Road Width at Culvert: 45 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 0.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 0.5 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0744 tons/year
Right Approach
Length: 344 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.469
Erosion: 0.2399 tons/year
Erosion Information
Total Erosion at Crossing: 0.3143 tons/year
Summary Information
Fish Passability 0.9
Fish Passage is an area of concern for this site. Trash rack blocking normal flow at inlet and creating fast current.
A future visit to this site is recommended. Trash rack should be removed- at least checked regularly to clear debris. There is vegetation indicating it has not been cleared at all this year, and probably not for several seasons.
These non-native species were observerd at this site: Spotted Knapweed