Road Stream Crossing Site EUP_SI09
Saint Marys River Watershed, Wilmar Creek
E Bailey Rd
Chippewa County
Information collected by:
Site Location
GPS Coordinates: 46.4597331,-84.181619
T 047N R 002 Sec 21
Fish Passability: Barrier at Most Flows
Structure is NOT Perched
Total Erosion: 0.09 tons/year
Overall Score: 24
Severity: Moderate
Date Inventoried: 6/30/2021
Road Approach - Left
Road Approach - Right
Inlet
Upstream Conditions
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: Light superficial corrosion or abrasion or chipping or spalling or cracking. No shape changes (described above).
Additional (Multiple) Structures | ||||
Structure | Width | Length | Height | Material |
1 | 6 ft. | 42 ft. | 6 ft. | Metal |
2 | 6 ft. | 42 ft. | 6 ft. | Metal |
Structure Interior: Corrugated
Is Structure Rusted through? No
Dimensions of Structure: Length 42 ft. Width 6 ft. Height 6 ft.
Percentage Plugged: 61% - 80% Inlet
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: 1.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.1 ft./sec.
*Water Velocities were measured 0.9 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? No
Is Upstream Ponding Present? Yes
Pond: Length 30 ft., Width 20 ft.
Riffle Information
Water Depth: 2.3 ft.
Bankfull Width: 14 ft.
Wetted Width: 8.4 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: 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: 16 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4 ft.
Slope: Steep, 1:1, 45°, or 100%
Downstream
Fill Depth: 3.6 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Approaches
Left Approach
Length: 190 ft.
Slope: < 1%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0.04 tons/year
Right Approach
Length: 216 ft.
Slope: < 1%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0.05 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.09 tons/year
Summary Information
Fish Passability: Barrier at Most Flows
Is a future visit to this site recommended? No
Were any non-native species observerd at this site? Yes, wild parsnip, burdock, bishops goutweed, birds foot trefoil,.
Site Comments: Undersized culvert
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.