Road Stream Crossing Site EUP_BMIC_RSX207
Waishkey River Watershed
Chippewa County
Information collected by:
Bay Mills Indian Community
Site Location
GPS Coordinates: 46.3173673991723,-84.5682227398936
T 045N R 002 Sec 09
Fish Passability: Barrier at Most Flows
Structure is NOT Perched
Total Erosion: 1.14 tons/year
Overall Score: 40
Severity: Severe
Date Inventoried: 12/10/2020
Road Approach - Left
Road Approach - Right
Inlet
Upstream Conditions
Outlet
Downstream Conditions
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: Metal
Structure Substrate: Mixture
General Conditions: Severe deterioration from corrosion or abrasion (more than 50% of the structure is rusted through) or cracking or spalling or chipping (more than 50% of the structure is compromised). Or Major shape changes (described above) reducing the capacity of the structure by greater than 50%. OR Segment disconnect causing major subsurface erosion/piping and/or partial fill failure and/or sink holes in the fill.
Structure Interior: Corrugated
Is Structure Rusted through? Yes
Dimensions of Structure: Length 36 ft. Width 3 ft. Height 3 ft.
Percentage Plugged: 1% - 20% Inlet
Percentage Crushed: 81% - 100%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.33 ft.
Embedded Depth of Structure: 0.08 ft.
Water Velocity*: 0.2 ft./sec.
Structure Outlet
Water Depth: 0.16 ft.
Embedded Depth of Structure: 0.08 ft.
Water Velocity*: 0.5 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.
Stream Flow Type: Perennial (if flowing during the time of assessment.)
Is Scour Pool Present? No
Is Upstream Ponding Present? No
Riffle Information
Road Information
Road Surface: Native Surface
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: 12 ft.
Slope: Steep, 1:1, 45°, or 100%
Downstream
Fill Depth: 6 ft.
Slope: Steep, 1:1, 45°, or 100%
Approaches
Left Approach
Length: 200 ft.
Slope: 6-10%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.81 tons/year
Right Approach
Length: 100 ft.
Slope: 6-10%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.33 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 1.14 tons/year
Summary Information
Fish Passability: Barrier at Most Flows
Is a future visit to this site recommended? Yes, The inlet/inner portion of culvert is almost curshed all the way.
Were any non-native species observerd at this site? No
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.