Road Stream Crossing Site EUP_6337536842
Pine River Watershed, North Pine River
West H40
Chippewa County
Information collected by:
Superior Watershed Partnership
Site Location
GPS Coordinates: 46.2304369830001,-84.6059602409999
T 044NN R 002W Sec 06
Fish Passability: Barrier
Structure is NOT Perched
Total Erosion: 0.86 tons/year
Date Inventoried: 6/23/2020
Crossing Information*
Type of Crossing: Bridge
Number of Structures: 1
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Wingwall Greater than 70 degrees
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Sand
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 32.2 ft. Width 191.5 ft. Height 38 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 4.025 ft./sec.
Structure Outlet
Water Depth: 2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 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 125 ft., Width 32 ft., Depth 2 ft.
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 2 ft.
Bankfull Width: 56 ft.
Wetted Width: 54 ft.
Water Velocity: 1 ft./sec. (measured via Float Test)
Dominant Substrate: Sand – particles are smaller than a pinhead and feel gritty between fingers
Road Information
Road Surface: Paved
Owner: State
Road Condition: New Pavement or Well Graded, Same condition as initial placement.
Road Width at Culvert: 32.2 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 0 ft.
Slope: Vertical, 0:1, or 90°
Downstream
Fill Depth: 0 ft.
Slope: Vertical, 0:1, or 90°
Approaches
Left Approach
Length: 300 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.15 tons/year
Right Approach
Length: 430 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.71 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.86 tons/year
Summary Information
Fish Passability: Barrier
Is a future visit to this site recommended? Yes, High velocity of 4.025 ft/sec thru structure. Taken after abt 10 hours of heavy rain.
Were any non-native species observerd at this site? No
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.