Road Stream Crossing Site EUP_WRW06
Waishkey River Watershed, Orrs Creek
Hwy 221
Chippewa County
Information collected by:
Site Location
GPS Coordinates: 46.3978191,-84.5721633
T 046N R 002 Sec 09
Fish Passability: Barrier
Perch Height: 1 ft.
Total Erosion: 1.7 tons/year
Overall Score: 28
Severity: Severe
Date Inventoried: 6/7/2021
Road Approach - Left
Road Approach - Right
Inlet
Upstream Conditions
Outlet
Downstream Conditions
Representative Reach
Other
Site Sketch
Crossing Information*
Type of Crossing: Culvert(s)
Number of Structures: 1
Structure Shape: Square/Rectangle
Inlet Type: Headwall and Wingwall
Outlet Type: Cascade Over Riprap
Structure Material: Concrete
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 98 ft. Width 8 ft. Height 6.2 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Perch Height: 1 ft.
Structure Inlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.1 ft./sec.
Structure Outlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.1 ft./sec.
*Water Velocities were measured 0.7 ft. below the surface (via Flow Meter).
Additional Comments
Gas, buried lines
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? No
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 1.4 ft.
Bankfull Width: 20 ft.
Wetted Width: 16.5 ft.
Water Velocity: 0.1 ft./sec. (measured via Flow Meter)
Dominant Substrate: Clay – very fine particles that stick together
Road Information
Road Surface: Paved
Owner: County
Road Condition: Old Pavement or Rutted, Minor cracking or rutting/ponding at crossing all or part of crossing length.
Road Core Integrity: Good (no symptoms of lack of integrity)
Road Width at Culvert: 38 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 13.5 ft.
Slope: Steep, 1:1, 45°, or 100%
Downstream
Fill Depth: 13.5 ft.
Slope: Steep, 1:1, 45°, or 100%
Approaches
Left Approach
Length: 600 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.39 tons/year
Right Approach
Length: 600 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 1.31 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 1.7 tons/year
Summary Information
Fish Passability: Barrier
Is a future visit to this site recommended? No
Were any non-native species observerd at this site? Yes, Reed canary grass.
Site Comments: Snow melt dirversion structures on both sides of road. see additional photos. Erosion on downstream side where snow melt structure meets river.
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.