Road Stream Crossing Site EUP_CHRW37
Charlotte River Watershed, Unnamed
S Mcknight Road
Information collected by:
Site Location
GPS Coordinates: 46.3690158,-84.3536358
T 046N R 001 Sec 19
Fish Passability: Not a Barrier
Structure is NOT Perched
Total Erosion: 0.64 tons/year
Overall Score: 10
Severity: Minor
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: Ellipse
Inlet Type: Projecting
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 30 ft. Width 8 ft. Height 7 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 1.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured 1.2 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: 3.7 ft.
Bankfull Width: 10 ft.
Wetted Width: 8 ft.
Water Velocity: 0 ft./sec. (measured via Flow Meter)
Dominant Substrate: Silt – very fine particles that don't stick together
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: 14 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4 ft.
Slope: Steep, 1:1, 45°, or 100%
Downstream
Fill Depth: 4 ft.
Slope: Vertical, 0:1, or 90°
Approaches
Left Approach
Length: 95 ft.
Slope: 6-10%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.36 tons/year
Right Approach
Length: 80 ft.
Slope: 6-10%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.28 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.64 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, Burdock, thistle, spotted knapweed, birds-foot trefoil.
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.