Road Stream Crossing Site EUP_Spile Dam 2
Waishkey River Watershed, Unnamed
Spile Dam Rd
Chippewa County
Information collected by:
MiDNR
Site Location
GPS Coordinates: 46.3173678888462,-84.6169515702785
T 045N R 003 Sec 12
Fish Passability: Barrier at High Flows
Structure is NOT Perched
Total Erosion: 0.04 tons/year
Overall Score: 18
Severity: Moderate
Date Inventoried: 10/7/2021
Road Approach - Left
Road Approach - Right
Inlet
Upstream Conditions
Outlet
Downstream Conditions
Site Sketch
Crossing Information*
Type of Crossing: Culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Mitered
Outlet Type: At Stream Grade
Structure Material: Plastic
Structure Substrate: None
General Conditions: Not new, but no noticeable corrosion, abrasion, chipping, spalling, or cracking. No shape changes such as barrel distortion (bowing, bending, warping), bulging, inlet or outlet damaged.
Structure Interior: Corrugated
Is Structure Rusted through? No
Dimensions of Structure: Length 24 ft. Width 24 ft. Height 1.5 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.75 ft.
Embedded Depth of Structure: 0.5 ft.
Structure Outlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0.5 ft.
Stream Information
Stream Flow: < 1/2 Bankfull – The stream channel is less than half filled with water.
Stream Flow Type: Concentrated Wetland Flow.
Is Scour Pool Present? Yes
Scour Pool: Length 15 ft., Width 20 ft., Depth 0.75 ft.
Is Upstream Ponding Present? Yes
Pond: Length 15 ft., Width 8 ft.
Riffle Information
Dominant Substrate: Organics – decomposing plant material
Road Information
Road Surface: Sand
Owner: State
Road Condition: Broken Pavement or Rilled/Gullied, Multiple patches, cracks, rilling, or gullies at crossing.
Road Core Integrity: Fair (some of the symptoms may be present, but not to an extent posing high risk to the crossing)
Road Width at Culvert: 12 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Downstream
Fill Depth: 1 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Approaches
Left Approach
Length: 25 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.02 tons/year
Right Approach
Length: 25 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.02 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.04 tons/year
Summary Information
Fish Passability: Barrier at High Flows
Site Comments: Wetland
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.