Road Stream Crossing Site EUP_MCW29
Les Cheneaux Islands Watershed, Albany Creek
E Ziegler Road
Chippewa County
Information collected by:
Site Location
GPS Coordinates: 46.014281,-84.074137
T 042N R 003 Sec 20
Fish Passability: Barrier
Perch Height: 0.1 ft.
Overall Score: 35
Severity: Severe
Date Inventoried: 5/26/2021
Road Approach - Left
Road Approach - Right
Inlet
Upstream 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: Concrete
Structure Substrate: Mixture
General Conditions: Moderate to major deterioration from corrosion or abrasion (less than 5% of the structure has small holes or is nearly rusted through) or cracking or spalling or chipping (several small cracks or moderate chipping in the concrete). OR Moderate shape changes (described above).
Additional (Multiple) Structures | ||||
Structure | Width | Length | Height | Material |
2 | 3.5 ft. | 28 ft. | 3.5 ft. | Concrete |
Structure Interior: Smooth
Is Structure Rusted through? No
Dimensions of Structure: Length 28 ft. Width 3.5 ft. Height 3.5 ft.
Percentage Plugged: 61% - 80% Inside,Inlet
Percentage Crushed: None or 0%
Perch Height: 0.1 ft.
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0.6 ft.
Water Velocity*: 0.1 ft./sec.
Structure Outlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.8 ft./sec.
*Water Velocities were measured 0.1 ft. below the surface (via Flow Meter).
Stream Information
Stream Flow: < Bankfull – The stream channel is more than half filled with water, but is not full.
Stream Flow Type: Perennial (if flowing during the time of assessment.)
Is Scour Pool Present? Yes
Scour Pool: Length 24 ft., Width 24 ft., Depth 3.5 ft.
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 1 ft.
Bankfull Width: 15.4 ft.
Wetted Width: 13 ft.
Water Velocity: 0.1 ft./sec. (measured via Flow Meter)
Dominant Substrate: Sand – particles are smaller than a pinhead and feel gritty between fingers
Road Information
Road Surface: Gravel
Owner: County
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: 16 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4.2 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Downstream
Fill Depth: 4 ft.
Slope: Steep, 1:1, 45°, or 100%
Approaches
Left Approach
Length: 451 ft.
Slope: 6-10%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 3.15 tons/year
Right Approach
Length: 318 ft.
Slope: 6-10%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 2 tons/year
Erosion Information
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Extent of Erosion | Estimated Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | ||
Left Downstream Embankment1 | 10 ft. | 1 ft. | 1 ft. | Yes | Gravel | Minor (corrective actions recommended) | 0.01 |
1Fill in bank, put armoring around structure
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: Brook trout observed at inlet
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.