Road Stream Crossing Site GTBAY_MC024
Mitchell Creek Watershed, Mitchell Creek
N Garfield Rd
Garfield Twp,
Grand Traverse County
Information collected by:
Site Location
GPS Coordinates: 44.71141853
, -85.59545355
T27N
R11W
Sec 25
Owned by Local Government
Private
Private
Fish Passability 0.5
Total Erosion: 1.3208 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: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 92 ft.
, Width 5.2 ft.
, Height 3.6 ft.
Structure Inlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.1 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0.4 ft.
Water Velocity*: 0.1 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: 5.1 ft.
Wetted Width: 2.6 ft.
Water Velocity: 0.5 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Fair
Road Width at Culvert: 29.2 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 5.9 ft.
Slope: 1:1.5
Downstream
Fill Depth: 5.2 ft.
Slope: 1:1
Approaches
Left Approach
Length: 999 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.8
Erosion: 0.7712 tons/year
Right Approach
Length: 999 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.5496 tons/year
Erosion Information
Total Erosion at Crossing: 1.3208 tons/year
Summary Information
Fish Passability 0.5
These non-native species were observerd at this site: Burdock, Queen Anne's Lace, Purple Loosestrife, Spotted Knapweed, Autumn Olive