Road Stream Crossing Site EUP_6337502533
Pine River Watershed, Bear creek
S biscuit rd
Chippewa County
Information collected by:
Superior Watershed Partnership
Site Location
GPS Coordinates: 46.2046695450001,-84.697639403
T 044NN R 003W Sec 16
Fish Passability: Barrier at Most Flows
Structure is NOT Perched
Total Erosion: 2.53 tons/year
Date Inventoried: 6/24/2020
Crossing Information*
Type of Crossing: Culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Rock
General Conditions: Moderate deterioration from corrosion or abrasion (small rust flakes or indication that rust is slightly deeper than the surface level) or cracking or spalling or chipping (few minor cracks or localized chipping in the concrete). OR minor shape changes (described above).
Structure Interior: Smooth
Is Structure Rusted through? No
Dimensions of Structure: Length 73 ft. Width 12 ft. Height 12 ft.
Percentage Plugged: None or 0%
Percentage Crushed: 21% - 40%
Structure is NOT Perched
Structure Inlet
Water Depth: 8 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 2.03 ft./sec.
Structure Outlet
Water Depth: 8 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 2.03 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? Yes
Scour Pool: Length 24 ft., Width 12 ft., Depth 12 ft.
Is Upstream Ponding Present? Yes
Pond: Length 24 ft., Width 12 ft.
Riffle Information
Water Depth: 12 ft.
Bankfull Width: 33 ft.
Wetted Width: 37 ft.
Water Velocity: 0.63 ft./sec. (measured via Float Test)
Dominant Substrate: Sand – particles are smaller than a pinhead and feel gritty between fingers
Road Information
Road Surface: Gravel
Owner: Township
Road Condition: New Pavement or Well Graded, Same condition as initial placement.
Road Width at Culvert: 19 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4 ft.
Slope: Gentle, 3:1, 15°, or 33%
Downstream
Fill Depth: 4 ft.
Slope: Gentle, 3:1, 15°, or 33%
Approaches
Left Approach
Length: 148 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.31 tons/year
Right Approach
Length: 776 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 2.22 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 2.53 tons/year
Summary Information
Fish Passability: Barrier at Most Flows
Is a future visit to this site recommended? Yes, Barrier at most flows.
Were any non-native species observerd at this site? No
Site Comments: Visible sagging in pipe where the road is
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.