Road Stream Crossing Site EUP_WRW21
Waishkey River Watershed, Hutton Creek
W 12 Mile Rd
Chippewa County
Information collected by:
Site Location
GPS Coordinates: 46.3320133,-84.5364907
T 046N R 002 Sec 34
Fish Passability: Barrier at Most Flows
Structure is NOT Perched
Total Erosion: 1.61 tons/year
Overall Score: 21
Severity: Moderate
Date Inventoried: 8/26/2021
Road Approach - Left
Road Approach - Right
Inlet
Upstream Conditions
Outlet
Downstream Conditions
Representative Reach
Site Sketch
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: Rock
General Conditions: Light superficial corrosion or abrasion or chipping or spalling or cracking. No shape changes (described above).
Structure Interior: Smooth
Is Structure Rusted through? No
Dimensions of Structure: Length 48 ft. Width 9 ft. Height 8 ft.
Percentage Plugged: 1% - 20% Inside
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.7 ft./sec.
Structure Outlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.2 ft./sec.
*Water Velocities were measured 0.4 ft. below the surface (via Flow Meter).
Stream Information
Stream Flow: < 1/2 Bankfull – The stream channel is less than half filled with water.
Stream Flow Type: Perennial (if flowing during the time of assessment.)
Is Scour Pool Present? Yes
Scour Pool: Length 11 ft., Width 9 ft., Depth 0.7 ft.
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 0.6 ft.
Bankfull Width: 20.5 ft.
Wetted Width: 10 ft.
Water Velocity: 0.3 ft./sec. (measured via Flow Meter)
Dominant Substrate: Sand – particles are smaller than a pinhead and feel gritty between fingers
Road Information
Road Surface: Paved
Owner: County
Road Condition: New Pavement or Well Graded, Same condition as initial placement.
Road Core Integrity: Good (no symptoms of lack of integrity)
Road Width at Culvert: 20 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4.5 ft.
Slope: Steep, 1:1, 45°, or 100%
Downstream
Fill Depth: 4 ft.
Slope: Steep, 1:1, 45°, or 100%
Approaches
Left Approach
Length: 250 ft.
Slope: > 10%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.55 tons/year
Right Approach
Length: 400 ft.
Slope: > 10%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 1.06 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 1.61 tons/year
Summary Information
Fish Passability: Barrier at Most Flows
Is a future visit to this site recommended? No
Were any non-native species observerd at this site? Yes, Wild parsnip, reed canary grass, spotted knapweed, wild carrot.
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.