Road Stream Crossing Site EUP_CHRW39
Charlotte River Watershed, Unnamed
E 9 Mile Road
Chippewa County
Information collected by:
Site Location
GPS Coordinates: 46.3755335,-84.3441708
T 046N R 001 Sec 19
Fish Passability: Potential Behavioral Barrier
Structure is NOT Perched
Total Erosion: 0.72 tons/year
Overall Score: 24
Severity: Moderate
Date Inventoried: 6/24/2021
Road Approach - Left
Road Approach - Right
Inlet
Upstream Conditions
Outlet
Downstream Conditions
Representative Reach
Site Sketch
Crossing Information*
Type of Crossing: Culvert(s)
Number of Structures: 1
Structure Shape: Pipe Arch
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Plastic
Structure Substrate: None
General Conditions: No deficiencies. New structure or nearly new condition.
Structure Interior: Corrugated
Is Structure Rusted through? No
Dimensions of Structure: Length 114 ft. Width 11.5 ft. Height 7.3 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 1.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 1.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured 1.5 ft. below the surface (via Flow Meter).
Stream Information
Stream Flow: < 1/2 Bankfull – The stream channel is less than half filled with water.
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: 1 ft.
Bankfull Width: 21 ft.
Wetted Width: 12 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: 23 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4.5 ft.
Slope: Gentle, 3:1, 15°, or 33%
Downstream
Fill Depth: 4.5 ft.
Slope: Gentle, 3:1, 15°, or 33%
Approaches
Left Approach
Length: 650 ft.
Slope: 1-5%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0.34 tons/year
Right Approach
Length: 890 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.38 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.72 tons/year
Summary Information
Fish Passability: Potential Behavioral Barrier
Is a future visit to this site recommended? No
Were any non-native species observerd at this site? No
Site Comments: Recently replaced culvert. Stream in very poor condition due to previous culvert, banks may start repairing themselves with this new culvert.
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.