Road Stream Crossing Site AUS_OS027
Au Sable River Watershed, Beaver Creek
Cherry Creek Rd
Greenwood Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.68406,-84.3064899999999
T 027N R 001 Sec 34
Owned by Private
Fish Passability: Not a Barrier
Structure is NOT Perched
Total Erosion: 20 tons/year
Overall Score: 12
Severity: Minor
Date Inventoried: 4/13/2022
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: Metal
Structure Substrate: Sand
General Conditions: No deficiencies. New structure or nearly new condition.
Structure Interior: Corrugated
Is Structure Rusted through? No
Dimensions of Structure: Length 65 ft. Width 12 ft. Height 7.5 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: 0.5 ft.
Water Velocity*: 1.7 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 1.3 ft.
Water Velocity*: 1.1 ft./sec.
*Water Velocities were measured 1.8 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? Yes
Pond: Length 15 ft., Width 15 ft.
Riffle Information
Water Depth: 1.5 ft.
Bankfull Width: 12.5 ft.
Wetted Width: 11.6 ft.
Water Velocity: 1.4 ft./sec. (measured via Flow Meter)
Dominant Substrate: Sand – particles are smaller than a pinhead and feel gritty between fingers
Road Information
Road Surface: Gravel
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: 26 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.7 ft.
Slope: Vertical, 0:1, or 90°
Downstream
Fill Depth: 2 ft.
Slope: Gentle, 3:1, 15°, or 33%
Approaches
Left Approach
Length: 465 ft.
Slope: 6-10%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 5.32 tons/year
Right Approach
Length: 1000 ft.
Slope: 6-10%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 14.68 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 20 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, Spotted Knapweed.
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.