Road Stream Crossing Site EUP_Spile Dam 6
Waishkey River Watershed, Unnamed
Forest Access Road
Chippewa County
Information collected by:
MiDNR
Site Location
GPS Coordinates: 46.3061616157549,-84.6044937476642
T 045N R 002 Sec 07
Fish Passability: Barrier at Most Flows
Total Erosion: 0 tons/year
Overall Score: 35
Severity: Severe
Date Inventoried: 10/8/2021
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: Other
Outlet Type: Other
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Major deterioration from corrosion or abrasion (10-50% of the length of structure is rusted through) or cracking or spalling or chipping (large chunks sloughing off, large cracks, exposed metal reinforcement). OR Major shape changes (described above) reducing the capacity of the structure by up to 50%. OR segment disconnection with evidence of water piping under or around the culvert.
Structure Interior: Corrugated
Is Structure Rusted through? No
Dimensions of Structure: Length 24 ft. Width 18 ft. Height 18 ft.
Percentage Plugged: 61% - 80% Inside
Percentage Crushed: None or 0%
Structure Inlet
Water Depth: 0 ft.
Embedded Depth of Structure: 0 ft.
Structure Outlet
Water Depth: 0.25 ft.
Embedded Depth of Structure: 0.25 ft.
Stream Information
Stream Flow: < 1/2 Bankfull – The stream channel is less than half filled with water.
Is Scour Pool Present? No
Is Upstream Ponding Present? Yes
Pond: Length 300 ft., Width 100 ft.
Riffle Information
Dominant Substrate: Organics – decomposing plant material
Road Information
Road Surface: Sand
Owner: State
Road Condition: Old Pavement or Rutted, Minor cracking or rutting/ponding at crossing all or part of crossing length.
Road Core Integrity: Poor (one or more symptoms are present and are compromising the integrity of the crossing)
Road Width at Culvert: 10 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 2 ft.
Slope: Gentle, 3:1, 15°, or 33%
Downstream
Fill Depth: 1 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Approaches
Left Approach
Length: 10 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: 25 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 at Most Flows
Site Comments: Inlet is 99% blocked by impoundment.
Unknown length of structure, can’t find it
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.