Road Stream Crossing Site EUP_MBIC_RSX49
Waishkey River Watershed, South Branch East Branch Waiska River
Chippewa County
Information collected by:
Bay Mills Indian Community
Site Location
GPS Coordinates: 46.3603157147003,-84.4532548100733
T 046N R 001 Sec 20
Fish Passability: Barrier
Perch Height: 0.08 ft.
Total Erosion: 0.69 tons/year
Overall Score: 24
Severity: Severe
Date Inventoried: 9/27/2019
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: Open Bottom Square/Rectangle
Inlet Type: Headwall
Outlet Type: Freefall into Pool
Structure Material: Concrete
Structure Substrate: Sand
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 20 ft. Width 20 ft. Height 5.5 ft.
Percentage Plugged: 1% - 20% Outlet
Percentage Crushed: None or 0%
Perch Height: 0.08 ft.
Structure Inlet
Water Depth: 0.33 ft.
Embedded Depth of Structure: 0.025 ft.
Water Velocity*: 0.45 ft./sec.
Structure Outlet
Water Depth: 0.25 ft.
Embedded Depth of Structure: 0.03 ft.
Water Velocity*: 0.45 ft./sec.
*Water Velocities were measured at the surface (via Float Test).
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? No
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 2.1 ft.
Bankfull Width: 11.5 ft.
Wetted Width: 6 ft.
Water Velocity: 0.1 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: 29 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 6.3 ft.
Slope: Vertical, 0:1, or 90°
Downstream
Fill Depth: 6.3 ft.
Slope: Vertical, 0:1, or 90°
Approaches
Left Approach
Length: 300 ft.
Slope: 6-10%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0.51 tons/year
Right Approach
Length: 150 ft.
Slope: 6-10%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0.18 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.69 tons/year
Summary Information
Fish Passability: Barrier
Is a future visit to this site recommended? No
Were any non-native species observerd at this site? No
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.