Road Stream Crossing Site EUP_MRW38
Munuscong River Watershed, Sanderson Creek
S Steele Rd
Chippewa County
Information collected by:
Site Location
GPS Coordinates: 46.1841302,-84.3843235
T 044N R 001 Sec 25
Fish Passability: Barrier at High Flows
Structure is NOT Perched
Total Erosion: 1.7 tons/year
Overall Score: 16
Severity: Moderate
Date Inventoried: 8/25/2021
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: Cascade Over Riprap
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 28 ft. Width 5 ft. Height 3.8 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.1 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.3 ft./sec.
*Water Velocities were measured 0.2 ft. below the surface (via Flow Meter).
Stream Information
Stream Flow: < 1/2 Bankfull – The stream channel is less than half filled with water.
Stream Flow Type: Perennial (if flowing during the time of assessment.)
Is Scour Pool Present? Yes
Scour Pool: Length 23 ft., Width 9 ft., Depth 2 ft.
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 2 ft.
Bankfull Width: 6 ft.
Wetted Width: 5 ft.
Water Velocity: 0.1 ft./sec. (measured via Flow Meter)
Dominant Substrate: Clay – very fine particles that stick together
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: Fair (some of the symptoms may be present, but not to an extent posing high risk to the crossing)
Road Width at Culvert: 11 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1 ft.
Slope: Gentle, 3:1, 15°, or 33%
Downstream
Fill Depth: 1 ft.
Slope: Gentle, 3:1, 15°, or 33%
Approaches
Left Approach
Length: 450 ft.
Slope: 1-5%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0.85 tons/year
Right Approach
Length: 450 ft.
Slope: 1-5%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0.85 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 1.7 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: Armoring and old culvert found downstream. Evidence of overtopping
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.