Road Stream Crossing Site EUP_DI08
Drummond Island Watershed
S Maxton Road
Chippewa County
Information collected by:
Site Location
GPS Coordinates: 46.0712585,-83.6648923
T 042N R 006 Sec 03
Fish Passability: Barrier at High Flows
Structure is NOT Perched
Total Erosion: 4.09 tons/year
Overall Score: 19
Severity: Moderate
Date Inventoried: 6/2/2021
Road Approach - Left
Road Approach - Right
Inlet
Upstream Conditions
Outlet
Downstream Conditions
Representative Reach
Other
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: Mixture
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 8 ft. Height 5.5 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 3.9 ft.
Embedded Depth of Structure: 2 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 4.2 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0.1 ft./sec.
*Water Velocities were measured at the surface (via Flow Meter).
Stream Information
Stream Flow: = Bankfull – Water has completely filled the stream channel, but is not flowing onto the floodplain.
Stream Flow Type: Concentrated Wetland Flow.
Is Scour Pool Present? No
Is Upstream Ponding Present? Yes
Pond: Length 10 ft., Width 20 ft.
Riffle Information
Water Depth: 3.5 ft.
Bankfull Width: 17 ft.
Wetted Width: 17 ft.
Water Velocity: 0 ft./sec. (measured via Flow Meter)
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: 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: 1.5 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Approaches
Left Approach
Length: 1000 ft.
Slope: 1-5%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 3.97 tons/year
Right Approach
Length: 450 ft.
Slope: 1-5%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0.12 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 4.09 tons/year
Summary Information
Fish Passability: Barrier at High Flows
Is a future visit to this site recommended? No
Were any non-native species observerd at this site? No
Site Comments: Road blocking wetland drainage/ wetland drained by ditch Road
Drains the same wetland as DI07
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.