Road Stream Crossing Site GTBAY_MC005

Mitchell Creek Watershed, Mitchell Creek East Branch
Tart Trail and Railroad Crossing
East Bay Twp, Grand Traverse County
Information collected by:
Site Location
GPS Coordinates: 44.744462 , -85.551366
T27N R10W Sec 08
Owned by State
Fish Passability 0.5
Total Erosion: 0.37 tons/year
Severity: Moderate
Year Inventoried: 2024
Site ID
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: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: None
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 37 ft. , Width 5 ft. , Height 5 ft.
Structure Inlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0.5 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured 0.9 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Upstream Pond: Length 35.5 ft. , Width 33 ft.
Riffle Information
Water Depth: 0.5 ft.
Bankfull Width: 13 ft.
Wetted Width: 9 ft.
Water Velocity: 0.2 ft./sec. (Measured with Meter)
Dominant Substrate: Organics
Road Information
Gravel Other Road
Road Condition: Fair
Road Width at Culvert: 11 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 5.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 6.5 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 0.37 tons/year
Extent of Erosion: Severe
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Upstream Embankment
9.5 ft.
5 ft.
1 ft.
yes
Gravel
0.19
Left Upstream Embankment
9 ft.
2 ft.
1 ft.
yes
Gravel
0.18
Summary Information
Fish Passability 0.5
Undersized for full flow of creek is an area of concern for this site.
These non-native species were observerd at this site: Honey suckle, buckthorn, Barberry