Road Stream Crossing Site EUP_PRW10
Pine River Watershed, Unnamed
South Sullivan Creek Road
Chippewa County
Information collected by:
Site Location
GPS Coordinates: 46.2389376,-84.7179931
T 044N R 003 Sec 06
Fish Passability: Barrier
Structure is NOT Perched
Total Erosion: 0.48 tons/year
Overall Score: 21
Severity: Severe
Date Inventoried: 4/14/2021
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 53.5 ft. Width 3 ft. Height 3 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.2 ft./sec.
Structure Outlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 5.6 ft./sec.
*Water Velocities were measured 0.3 ft. below the surface (via Flow Meter).
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 13 ft., Width 9 ft., Depth 2.4 ft.
Is Upstream Ponding Present? Yes
Pond: Length 35 ft., Width 38 ft.
Riffle Information
Water Depth: 0.6 ft.
Bankfull Width: 6 ft.
Wetted Width: 3.5 ft.
Water Velocity: 1.9 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: New Pavement or Well Graded, Same condition as initial placement.
Road Core Integrity: Good (no symptoms of lack of integrity)
Road Width at Culvert: 22 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2 ft.
Slope: Gentle, 3:1, 15°, or 33%
Downstream
Fill Depth: 2.7 ft.
Slope: Gentle, 3:1, 15°, or 33%
Approaches
Left Approach
Length: 360 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.12 tons/year
Right Approach
Length: 340 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.36 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.48 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, Spotted knapweed.
Site Comments: Culvert
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.