Road Stream Crossing Site BEAR_BC082

Bear Creek Watershed, Cedar Creek
9 Mile Rd/Co Rd 598
Maple Grove Twp, Manistee County
Information collected by:
Site Location
GPS Coordinates: 44.36957 , -85.99914
T23N R14W Sec 22
Owned by Private
Fish Passability 1
Structure is NOT Perched
Total Erosion: 0.1124 tons/year
Severity: Minor
Year Inventoried: 2011
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: Open Bottom Square/Rectangle
Inlet Type: Wingwall 30-70 Degree
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 55 ft. , Width 15.5 ft. , Height 7 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.91 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.9 ft./sec.
Structure Outlet
Water Depth: 0.56 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.1 ft./sec.
*Water Velocities were measured 0.34 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 1.06 ft.
Bankfull Width: 12.8 ft.
Wetted Width: 10.6 ft.
Water Velocity: 1.1 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 34 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: 0.8 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0562 tons/year
Right Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0562 tons/year
Erosion Information
Total Erosion at Crossing: 0.1124 tons/year
Extent of Erosion: Minor
Notes: Very minor downstream embankment erosion due to the light vegetation cover which is compounded by being mowed.
Summary Information
Fish Passability 1

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