Road Stream Crossing Site EUP_BMIC_RSX226
Waishkey River Watershed
Chippewa County
Information collected by:
Bay Mills Indian Community
Site Location
GPS Coordinates: 46.359877189,-84.6136367989999
T 046N R 003 Sec 25
Fish Passability: Barrier at High Flows
Structure is NOT Perched
Total Erosion: 6.03 tons/year
Overall Score: 15
Severity: Moderate
Date Inventoried: 12/4/2020
Crossing Information*
Type of Crossing: Culvert(s)
Number of Structures: 1
Structure Shape: Ellipse
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Light superficial corrosion or abrasion or chipping or spalling or cracking. No shape changes (described above).
Structure Interior: Smooth
Is Structure Rusted through? No
Dimensions of Structure: Length 18 ft. Width 4 ft. Height 2 ft.
Percentage Plugged: 1% - 20% Inlet,Outlet
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.31 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 0.21 ft.
Embedded Depth of Structure: 0.42 ft.
Water Velocity*: 1 ft./sec.
*Water Velocities were measured at the surface (via Float Test).
Additional Comments
Updated by Huron Pines
Stream Information
Stream Flow: < Bankfull – The stream channel is more than half filled with water, but is not full.
Stream Flow Type: Perennial (if flowing during the time of assessment.)
Is Scour Pool Present? Yes
Scour Pool: Length 22 ft., Width 6 ft., Depth 1 ft.
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 0.1 ft.
Bankfull Width: 5 ft.
Wetted Width: 1.6 ft.
Water Velocity: 0.3 ft./sec. (measured via Flow Meter)
Dominant Substrate: Gravel – rocks between the size of a pinhead and a baseball
Road Information
Road Surface: Gravel
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: 2.5 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Downstream
Fill Depth: 2 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Approaches
Left Approach
Length: 400 ft.
Slope: > 10%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 5.28 tons/year
Right Approach
Length: 100 ft.
Slope: > 10%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.75 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 6.03 tons/year
Summary Information
Fish Passability: Barrier at High Flows
Is a future visit to this site recommended? No
Were any non-native species observerd at this site? Yes, White sweet clover, mullein, bull thistle.
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.