Road Stream Crossing Site ST155

Sturgeon River Watershed, West Branch Sturgeon River
Coash Rd
Hudson Twp, Charlevoix County
Information collected by:
Tip of the Mitt Watershed Council
Site Location
GPS Coordinates: 45.137067 , -84.755317
T32N R04W Sec 26
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 3.5081 tons/year
Severity: Severe
Year Inventoried: 2015
Site ID
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 2
Structure Shape: Round
Inlet Type: Trash Rack
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Multiple Culverts/Spans
Culvert/Span
Width
Length
Height
Material
2
3.9 ft.
40 ft.
2.8 ft.
Metal
Structure Interior: corrugated
Dimensions of Structure: Length 40 ft. , Width 3.8 ft. , Height 2.8 ft.
Percentage Plugged: Inlet: 1% to 25% Outlet: 0% In Pipe: 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0.8 ft.
Water Velocity*: 2.6 ft./sec.
Structure Outlet
Water Depth: 1.5 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 2.6 ft./sec.
*Water Velocities were measured at the Surface (with Float Test)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Upstream Pond: Length 30 ft. , Width 50 ft. , Depth 3.5 ft.
Riffle Information
Water Depth: 1.1 ft.
Bankfull Width: 10 ft.
Wetted Width: 9.3 ft.
Water Velocity: 1 ft./sec. (Measured with Float Test)
Dominant Substrate: Sand
Road Information
Gravel State Road
Road Condition: Good
Road Width at Culvert: 21 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.3 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 214 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.433
Erosion: 0.5358 tons/year
Right Approach
Length: 915 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.562
Erosion: 2.9722 tons/year
Erosion Information
Total Erosion at Crossing: 3.5081 tons/year
Summary Information
Fish Passability 0.5
Fish Passage is an area of concern for this site. water velocity
A future visit to this site is recommended. High velocity