Road Stream Crossing Site EUP_PRW04
Pine River Watershed
South Smith Road
Chippewa County
Information collected by:
Site Location
GPS Coordinates: 46.2010539,-84.7286999
T 044N R 003 Sec 18
Fish Passability: Not a Barrier
Structure is NOT Perched
Total Erosion: 0.66 tons/year
Overall Score: 6
Severity: Minor
Date Inventoried: 4/13/2021
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: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Plastic
Structure Substrate: Sand
General Conditions: No deficiencies. New structure or nearly new condition.
Structure Interior: Smooth
Is Structure Rusted through? No
Dimensions of Structure: Length 38 ft. Width 4 ft. Height 4 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.7 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.5 ft./sec.
*Water Velocities were measured 0.8 ft. below the surface (via Flow Meter).
Additional Comments
Headwaters of stream
Stream Information
Stream Flow: < Bankfull – The stream channel is more than half filled with water, but is not full.
Stream Flow Type: Concentrated Wetland Flow.
Is Scour Pool Present? No
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 0.9 ft.
Bankfull Width: 3 ft.
Wetted Width: 2.4 ft.
Water Velocity: 0.6 ft./sec. (measured via Flow Meter)
Dominant Substrate: Clay – very fine particles that stick together
Road Information
Road Surface: Gravel
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: 12 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.6 ft.
Slope: Gentle, 3:1, 15°, or 33%
Downstream
Fill Depth: 2.6 ft.
Slope: Gentle, 3:1, 15°, or 33%
Approaches
Left Approach
Length: 372 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.58 tons/year
Right Approach
Length: 400 ft.
Slope: 1-5%
Erosion Estimate: 0.08 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.66 tons/year
Summary Information
Fish Passability: Not a Barrier
Is a future visit to this site recommended? No
Were any non-native species observerd at this site? Yes, Thistle, spotted knapweed.
Site Comments: Dam downstream creating a large pond
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.