Road Stream Crossing Site EUP_DI13
Drummond Island Watershed
Glen Cove Road
Chippewa County
Information collected by:
Site Location
GPS Coordinates: 45.9740486,-83.5654517
T 041N R 007 Sec 04
Fish Passability: Barrier
Structure is NOT Perched
Total Erosion: 1.42 tons/year
Overall Score: 26
Severity: Moderate
Date Inventoried: 6/3/2021
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: 2
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Moderate to major deterioration from corrosion or abrasion (less than 5% of the structure has small holes or is nearly rusted through) or cracking or spalling or chipping (several small cracks or moderate chipping in the concrete). OR Moderate shape changes (described above).
Additional (Multiple) Structures | ||||
Structure | Width | Length | Height | Material |
1 | 1.5 ft. | 26 ft. | 1.5 ft. | Metal |
Structure Interior: Corrugated
Is Structure Rusted through? No
Dimensions of Structure: Length 26 ft. Width 2 ft. Height 2 ft.
Percentage Plugged: 1% - 20% Outlet
Percentage Crushed: 1% - 20%
Structure is NOT Perched
Structure Inlet
Water Depth: 1.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 0 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured at the surface (via Flow Meter).
Stream Information
Stream Flow: None – The streambed is dry and there is no water flow.
Stream Flow Type: Concentrated Wetland Flow.
Is Scour Pool Present? No
Is Upstream Ponding Present? Yes
Pond: Length 50 ft., Width 150 ft.
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 6.5 ft.
Wetted Width: 3.5 ft.
Water Velocity: 0 ft./sec. (measured via Float Test)
Dominant Substrate: Organics – decomposing plant material
Road Information
Road Surface: Gravel
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: 17 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 0.9 ft.
Slope: Gentle, 3:1, 15°, or 33%
Downstream
Fill Depth: 0.9 ft.
Slope: Gentle, 3:1, 15°, or 33%
Approaches
Left Approach
Length: 450 ft.
Slope: < 1%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.11 tons/year
Right Approach
Length: 550 ft.
Slope: < 1%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 1.31 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 1.42 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? No
Site Comments: Road damming wetland
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.