Road Stream Crossing Site EUP_6337522066
Pine River Watershed, Pine river
W H-40
Chippewa County
Information collected by:
Superior Watershed Partnership
Site Location
GPS Coordinates: 46.230391721,-84.6310873419999
T 044NN R 003W Sec 01
Fish Passability: Barrier
Structure is NOT Perched
Total Erosion: 0.81 tons/year
Severity: Severe
Date Inventoried: 6/23/2020
Crossing Information*
Type of Crossing: Bridge
Number of Structures: 1
Structure Material: Metal
Structure Substrate: Gravel
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).
Is Structure Rusted through? No
Dimensions of Structure: Length 32 ft. Width 193 ft. Height 38 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.2 ft./sec.
Structure Outlet
Water Depth: 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: 3.5 ft.
Bankfull Width: 42 ft.
Wetted Width: 41 ft.
Water Velocity: 1 ft./sec. (measured via Float Test)
Dominant Substrate: Clay – very fine particles that stick together
Road Information
Road Surface: Paved
Owner: County
Road Condition: New Pavement or Well Graded, Same condition as initial placement.
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: 766 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.44 tons/year
Right Approach
Length: 654 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.37 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.81 tons/year
Summary Information
Fish Passability: Barrier
Is a future visit to this site recommended? Yes, Auto calculated barrier.
Were any non-native species observerd at this site? No
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.