Road Stream Crossing Site GTBAY_MCT035

Mitchell Creek Watershed, Vanderlip Creek
Driveway to Mitchell Creek Meadows
East Bay Twp, Grand Traverse County
Information collected by:
Site Location
GPS Coordinates: 44.727265 , -85.555368
T27N R10W Sec 20
Owned by Private
Fish Passability 0.9
Total Erosion: 0.0526 tons/year
Severity: Moderate
Year Inventoried: 2020
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 40 ft. , Width 2.5 ft. , Height 2.5 ft.
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.1 ft./sec.
Structure Outlet
Water Depth: 2.6 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0.1 ft./sec.
*Water Velocities were measured 1.7 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 8 ft. , Width 7 ft. , Depth 2.5 ft.
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 4.1 ft.
Wetted Width: 3.6 ft.
Water Velocity: 0.5 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved Private Road
Road Condition: Fair
Road Width at Culvert: 19 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.1 ft.
Slope: Less than 1:2
Downstream
Fill Depth: 1.5 ft.
Slope: Less than 1:2
Approaches
Left Approach
Length: 350 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.011 tons/year
Right Approach
Length: 25 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0008 tons/year
Erosion Information
Total Erosion at Crossing: 0.0526 tons/year
Extent of Erosion: Minor
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Downstream Streambank
6.5 ft.
1.5 ft.
1.2 ft.
yes
Sandy Loam
0.0075
Right Upstream Embankment
5.5 ft.
2.5 ft.
1.5 ft.
yes
Sandy Loam
0.0079
Right Upstream Streambank
11.5 ft.
2.7 ft.
2.3 ft.
yes
Sandy Loam
0.0254
Summary Information
Fish Passability 0.9
These non-native species were observerd at this site: Reed Canary Grass, Spotted Knapweed