Road Stream Crossing Site EUP_BMIC_RSX50
Waishkey River Watershed
Chippewa County
Information collected by:
Bay Mills Indian Community
Site Location
GPS Coordinates: 46.3602670000001,-84.4453799999999
T 046N R 001 Sec 28
Fish Passability: Not a Barrier
Structure is NOT Perched
Total Erosion: 0.37 tons/year
Overall Score: 14
Severity: Minor
Date Inventoried: 11/27/2020
Crossing Information*
Type of Crossing: Culvert(s)
Number of Structures: 1
Structure Shape: Square/Rectangle
Inlet Type: Headwall and Wingwall
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: Major deterioration from corrosion or abrasion (5-10% of the structure is rusted through) or cracking or spalling or chipping (medium sized cracks, widespread chipping, exposed metal reinforcement). OR Major shape changes (described above) reducing the capacity of the structure by less than 30%. OR segment disconnection (segments of concrete or metal culvert disconnecting internally) but no evidence of water piping.
Structure Interior: Smooth
Is Structure Rusted through? No
Dimensions of Structure: Length 34 ft. Width 14 ft. Height 4.5 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 1.25 ft.
Embedded Depth of Structure: 0.083 ft.
Water Velocity*: 0.5 ft./sec.
Structure Outlet
Water Depth: 1.33 ft.
Embedded Depth of Structure: 0.38 ft.
Water Velocity*: 0.5 ft./sec.
*Water Velocities were measured at the surface (via Float Test).
Additional Comments
Updated by Huron Pines
Stream Information
Stream Flow: > Bankfull – Water has filled the stream channel and is 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
Water Depth: 0.8 ft.
Bankfull Width: 8 ft.
Wetted Width: 6 ft.
Water Velocity: 0 ft./sec. (measured via Flow Meter)
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 Core Integrity: Good (no symptoms of lack of integrity)
Road Width at Culvert: 21.5 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4.5 ft.
Slope: Vertical, 0:1, or 90°
Downstream
Fill Depth: 4.5 ft.
Slope: Vertical, 0:1, or 90°
Approaches
Left Approach
Length: 400 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.14 tons/year
Right Approach
Length: 250 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.23 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.37 tons/year
Summary Information
Fish Passability: Not a Barrier
Is a future visit to this site recommended? No
Were any non-native species observerd at this site? Yes, Wild parsnip, bittersweet nightshade.
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.