Road Stream Crossing Site GTBAY_MC027
Mitchell Creek Watershed, Mitchell Creek
Driveway to Traverse City Highschool
East Bay Twp,
Grand Traverse County
Information collected by:
Site Location
GPS Coordinates: 44.741862
, -85.559113
T27N
R10W
Sec 18
Owned by Private
Fish Passability 0.9
Total Erosion: 0.0279 tons/year
Severity: Minor
Year Inventoried: 2020
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Structure Shape: Open Bottom Arch
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 23 ft.
, Width 16 ft.
, Height 3 ft.
Structure Inlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.4 ft./sec.
Structure Outlet
Water Depth: 1.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.7 ft./sec.
*Water Velocities were measured 0.7 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 1.5 ft.
Bankfull Width: 24.6 ft.
Wetted Width: 15.5 ft.
Water Velocity: 1.4 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
Private Road
Road Condition: Good
Road Width at Culvert: 21 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.3 ft.
Slope: Vertical
Downstream
Fill Depth: 1.3 ft.
Slope: Vertical
Approaches
Left Approach
Length: 100 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.39
Erosion: 0.0271 tons/year
Right Approach
Length: 25 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0.0009 tons/year
Erosion Information
Total Erosion at Crossing: 0.0279 tons/year
Summary Information
Fish Passability 0.9
These non-native species were observerd at this site: Spotted Knapweed