Road Stream Crossing Site EUP_6336446131
Carp River Watershed, Kneebone Creek
S beech rd
Chippewa County
Information collected by:
Superior Watershed Partnership
Site Location
GPS Coordinates: 46.194809284,-85.017619478
T 044NN R 006W Sec 23
Fish Passability: Not a Barrier
Structure is NOT Perched
Total Erosion: 11.3 tons/year
Date Inventoried: 6/16/2020
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: Rock
General Conditions: Moderate deterioration from corrosion or abrasion (small rust flakes or indication that rust is slightly deeper than the surface level) or cracking or spalling or chipping (few minor cracks or localized chipping in the concrete). OR minor shape changes (described above).
Structure Interior: Corrugated
Is Structure Rusted through? No
Dimensions of Structure: Length 26 ft. Width 5 ft. Height 3 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.3 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0.3 ft./sec.
*Water Velocities were measured at the surface (via Float Test).
Stream Information
Stream Flow: < Bankfull – The stream channel is more than half filled with water, but is not full.
Is Scour Pool Present? No
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 0.7 ft.
Bankfull Width: 12.5 ft.
Wetted Width: 9.5 ft.
Water Velocity: 0.5 ft./sec. (measured via Float Test)
Dominant Substrate: Gravel – rocks between the size of a pinhead and a baseball
Road Information
Road Surface: Gravel
Owner: Township
Road Condition: New Pavement or Well Graded, Same condition as initial placement.
Road Width at Culvert: 18.5 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.5 ft.
Slope: Gentle, 3:1, 15°, or 33%
Downstream
Fill Depth: 2.2 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Approaches
Left Approach
Length: 250 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.56 tons/year
Right Approach
Length: 0 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 11.3 tons/year
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Extent of Erosion | Estimated Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | ||
Right Upstream Embankment1 | 2 ft. | 2.6 ft. | 2.5 ft. | Yes | Loam | Minor | 0.01 |
Right Upstream Streambank2 | 15 ft. | 6.5 ft. | 5 ft. | Yes | Sand | Severe | 10.73 |
1Steep slope
2Steep slopes hard to correct
2Steep slopes hard to correct
Summary Information
Fish Passability: Not a Barrier
Is a future visit to this site recommended? Yes, To assess the dry culverts and erosion.
Were any non-native species observerd at this site? Yes, Non native grasses.
Site Comments: There was an unidentifiable cable in the stream crossing the water, possibly previously buried
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.