Road Stream Crossing Site EUP_DI07
Drummond Island Watershed
S Maxton Road
Chippewa County
Information collected by:
Site Location
GPS Coordinates: 46.0702124,-83.66488
T 042N R 006 Sec 03
Fish Passability: Not a Barrier
Structure is NOT Perched
Total Erosion: 3.49 tons/year
Overall Score: 15
Severity: Moderate
Date Inventoried: 6/2/2021
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: Ellipse
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Light superficial corrosion or abrasion or chipping or spalling or cracking. No shape changes (described above).
Structure Interior: Corrugated
Is Structure Rusted through? No
Dimensions of Structure: Length 30 ft. Width 7 ft. Height 4.5 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 4.5 ft.
Embedded Depth of Structure: 3.5 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 3.9 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured at the surface (via Float Test).
Stream Information
Stream Flow: < Bankfull – The stream channel is more than half filled with water, but is not full.
Stream Flow Type: Concentrated Wetland Flow.
Is Scour Pool Present? No
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 0 ft.
Bankfull Width: 0 ft.
Wetted Width: 0 ft.
Water Velocity: 0 ft./sec. (measured via Float Test)
Dominant Substrate: Organics – decomposing plant material
Road Information
Road Surface: Gravel
Owner: State
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: 18 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.2 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Downstream
Fill Depth: 1.6 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Approaches
Left Approach
Length: 860 ft.
Slope: 1-5%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 3.26 tons/year
Right Approach
Length: 760 ft.
Slope: 1-5%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0.23 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 3.49 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? No
Site Comments: road through wetland. No representative reach recorded because it is a wetland crossing.
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.