Road Stream Crossing Site ST004.4
Sturgeon River Watershed, Crumley Creek
M-68
Koehler Twp,
Cheboygan County
Information collected by:
Site Location
GPS Coordinates: 45.377774
, -84.55533
T35N
R02W
Sec 33
Owned by Private
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 0.8234 tons/year
Severity: Moderate
Year Inventoried: 2015
Site ID
Inlet
Outlet
Downstream Conditions
Upstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
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 96.4 ft.
, Width 4.6 ft.
, Height 4.5 ft.
Percentage Plugged:
Inlet: 1% to 25%
Outlet: 0%
In Pipe: 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 1.8 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0.9 ft./sec.
*Water Velocities were measured 1 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 29.8 ft.
, Width 14.8 ft.
, Depth 2.7 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.5 ft.
Bankfull Width: 12 ft.
Wetted Width: 11 ft.
Water Velocity: 11 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
State Road
Road Condition: Good
Road Width at Culvert: 43.7 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 9.6 ft.
Slope: 1:1.5
Downstream
Fill Depth: 11.8 ft.
Slope: 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.8234 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: 0.8234 tons/year
Summary Information
Fish Passability 0.9
A future visit to this site is recommended. small size of culvert, monitor the scour pool
These non-native species were observerd at this site: Spotted knapweed