Road Stream Crossing Site GTBAY_MC017
Mitchell Creek Watershed, Mitchell Creek
Hammond Rd
Garfield Twp,
Grand Traverse County
Information collected by:
Site Location
GPS Coordinates: 44.7150779
, -85.59202963
T27N
R11W
Sec 25
Owned by Private
Fish Passability 0.5
Total Erosion: 2.6307 tons/year
Severity: Moderate
Year Inventoried: 2020
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: Ellipse
Inlet Type: Apron
Outlet Type: Outlet Apron
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 91.7 ft.
, Width 4 ft.
, Height 2.6 ft.
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.8 ft./sec.
Structure Outlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.5 ft./sec.
*Water Velocities were measured at the Surface
(with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 14.6 ft.
Wetted Width: 6.2 ft.
Water Velocity: 0.9 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Fair
Road Width at Culvert: 65 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4 ft.
Slope: Less than 1:2
Downstream
Fill Depth: 5 ft.
Slope: Less than 1:2
Approaches
Left Approach
Length: 857 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.764
Erosion: 1.4074 tons/year
Right Approach
Length: 999 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 1.2234 tons/year
Erosion Information
Total Erosion at Crossing: 2.6307 tons/year
Summary Information
Fish Passability 0.5
These non-native species were observerd at this site: Queen Anne's Lace, Sweet White Clover, Spotted Knapweed