Road Stream Crossing Site GTBAY_MC006
Mitchell Creek Watershed, Mitchell Creek
Business Park Drive
East Bay Twp,
Grand Traverse County
Information collected by:
Site Location
GPS Coordinates: 44.743291
, -85.560042
T27N
R10W
Sec 18
Owned by Private
Fish Passability 0
Total Erosion: 0.0332 tons/year
Severity: Severe
Year Inventoried: 2020
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Structure Shape: Pipe Arch
Inlet Type: Apron
Outlet Type: Outlet Apron
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 75 ft.
, Width 9.3 ft.
, Height 6.2 ft.
Structure Inlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.8 ft./sec.
Structure Outlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.7 ft./sec.
*Water Velocities were measured 0.8 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 32 ft.
, Width 22 ft.
, Depth 3.8 ft.
Riffle Information
Water Depth: 1.2 ft.
Bankfull Width: 20.4 ft.
Wetted Width: 15.8 ft.
Water Velocity: 1 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 34 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2 ft.
Slope: Less than 1:2
Downstream
Fill Depth: 2 ft.
Slope: Less than 1:2
Approaches
Left Approach
Length: 75 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.36
Erosion: 0.0303 tons/year
Right Approach
Length: 50 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0.0028 tons/year
Erosion Information
Total Erosion at Crossing: 0.0332 tons/year
Summary Information
Fish Passability 0