Road Stream Crossing Site EUP_SI13
Saint Marys River Watershed, Unnamed
E Nort Shore Road
Information collected by:
Site Location
GPS Coordinates: 46.5208183,-84.1705614
T 048N R 002 Sec 34
Fish Passability: Barrier
Perch Height: 2 ft.
Total Erosion: 0 tons/year
Overall Score: 36
Severity: Severe
Date Inventoried: 7/1/2021
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: Round
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: Smooth
Is Structure Rusted through? No
Dimensions of Structure: Length 54 ft. Width 2 ft. Height 2 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Perch Height: 2 ft.
Structure Inlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.1 ft./sec.
*Water Velocities were measured at 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? Yes
Scour Pool: Length 12 ft., Width 7 ft., Depth 1 ft.
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 0.2 ft.
Bankfull Width: 8 ft.
Wetted Width: 3 ft.
Water Velocity: 0.1 ft./sec. (measured via Flow Meter)
Dominant Substrate: Gravel – rocks between the size of a pinhead and a baseball
Road Information
Road Surface: Paved
Owner: County
Road Condition: Old Pavement or Rutted, Minor cracking or rutting/ponding at crossing all or part of crossing length.
Road Core Integrity: Good (no symptoms of lack of integrity)
Road Width at Culvert: 20 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.5 ft.
Slope: Gentle, 3:1, 15°, or 33%
Downstream
Fill Depth: 6.5 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Approaches
Left Approach
Length: 0 ft.
Slope: < 1%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0 tons/year
Right Approach
Length: 0 ft.
Slope: < 1%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0 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? Yes, Burdock, thistle, birds-foot trefoil.
Site Comments: Excess water that does not make it through the culvert during high flows goes down the ditch to another culvert 50' east.
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.