Road Stream Crossing Site EUP_6337671351
Pine River Watershed, Pine River
W prairie rd
Chippewa County
Information collected by:
Superior Watershed Partnership
Site Location
GPS Coordinates: 46.1906041250001,-84.6113871049999
T 044NN R 002W Sec 19
Fish Passability: Barrier
Structure is NOT Perched
Total Erosion: 0.12 tons/year
Severity: Severe
Date Inventoried: 6/23/2020
Crossing Information*
Type of Crossing: Bridge
Number of Structures: 1
Structure Material: Concrete
Structure Substrate: Rock
General Conditions: No deficiencies. New structure or nearly new condition.
Structure Interior: Smooth
Is Structure Rusted through? No
Dimensions of Structure: Length 32 ft. Width 112.5 ft. Height 16 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 6.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.2 ft./sec.
Structure Outlet
Water Depth: 6.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.2 ft./sec.
*Water Velocities were measured at the surface (via Float Test).
Stream Information
Stream Flow: = Bankfull – Water has completely filled the stream channel, but is not flowing onto the floodplain.
Is Scour Pool Present? No
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 6.5 ft.
Bankfull Width: 47 ft.
Wetted Width: 47 ft.
Water Velocity: 2 ft./sec. (measured via Float Test)
Dominant Substrate: Clay – very fine particles that stick together
Road Information
Road Surface: Paved
Owner: Township
Road Condition: Impassible, Significant damage to road surface at crossing.
Road Width at Culvert: 32 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 0 ft.
Downstream
Fill Depth: 0 ft.
Approaches
Left Approach
Length: 250 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.12 tons/year
Right Approach
Length: 0 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.12 tons/year
Summary Information
Fish Passability: Barrier
Is a future visit to this site recommended? Yes, To re check velocity.
Were any non-native species observerd at this site? No
Site Comments: Right approach keeps descending that’s why it’s 0 at 0% slope
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.