Road Stream Crossing Site EUP_Raber 3
Gogomain River Watershed
Chippewa County
Information collected by:
MiDNR
Site Location
GPS Coordinates: 46.1082254,-84.0752259
T 043N R 003 Sec 20
Fish Passability: Barrier
Perch Height: 1 ft.
Total Erosion: 0 tons/year
Overall Score: 35
Severity: Severe
Date Inventoried: 11/3/2021
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: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Not new, but no noticeable corrosion, abrasion, chipping, spalling, or cracking. No shape changes such as barrel distortion (bowing, bending, warping), bulging, inlet or outlet damaged.
Structure Interior: Corrugated
Is Structure Rusted through? No
Dimensions of Structure: Length 24 ft. Width 2 ft. Height 2 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Perch Height: 1 ft.
Structure Inlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2 ft./sec.
*Water Velocities were measured at the surface (via Float Test).
Stream Information
Stream Flow: = Bankfull – Water has completely filled the stream channel, but is not flowing onto the floodplain.
Is Scour Pool Present? Yes
Scour Pool: Length 8 ft., Width 6 ft., Depth 2 ft.
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 1 ft.
Bankfull Width: 5 ft.
Wetted Width: 5 ft.
Water Velocity: 1 ft./sec. (measured via Float Test)
Dominant Substrate: Sand – particles are smaller than a pinhead and feel gritty between fingers
Road Information
Road Surface: Native Surface
Owner: State
Manager: DNR Forest Resources Division
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: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Downstream
Fill Depth: 1 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Approaches
Left Approach
Length: 0 ft.
Slope: < 1%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0 tons/year
Right Approach
Length: 0 ft.
Slope: < 1%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0 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: Sand
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.