Road Stream Crossing Site EUP_6336407163
Carp River Watershed, Schwesinger Creek
W huckleberry lake rd
Chippewa County
Information collected by:
Superior Watershed Partnership
Site Location
GPS Coordinates: 46.180154155,-85.071934545
T 044NN R 006W Sec 29
Fish Passability: Barrier at High Flows
Structure is NOT Perched
Total Erosion: 0.53 tons/year
Date Inventoried: 6/15/2020
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: None
General Conditions: Major deterioration from corrosion or abrasion (5-10% of the structure is rusted through) or cracking or spalling or chipping (medium sized cracks, widespread chipping, exposed metal reinforcement). OR Major shape changes (described above) reducing the capacity of the structure by less than 30%. OR segment disconnection (segments of concrete or metal culvert disconnecting internally) but no evidence of water piping.
Structure Interior: Corrugated
Is Structure Rusted through? Yes
Dimensions of Structure: Length 26 ft. Width 3.5 ft. Height 3 ft.
Percentage Plugged: None or 0%
Percentage Crushed: 1% - 20%
Structure is NOT Perched
Structure Inlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0.35 ft./sec.
Structure Outlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured at the surface (via Float Test).
Stream Information
Stream Flow: < 1/2 Bankfull – The stream channel is less than half filled with water.
Is Scour Pool Present? Yes
Scour Pool: Length 20 ft., Width 13 ft., Depth 2.8 ft.
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 1.6 ft.
Bankfull Width: 3 ft.
Wetted Width: 26 ft.
Water Velocity: 0.33 ft./sec. (measured via Float Test)
Dominant Substrate: Sand – particles are smaller than a pinhead and feel gritty between fingers
Road Information
Road Surface: Gravel
Owner: Other
Road Condition: Old Pavement or Rutted, Minor cracking or rutting/ponding at crossing all or part of crossing length.
Road Width at Culvert: 14 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.5 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Downstream
Fill Depth: 2 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Approaches
Left Approach
Length: 200 ft.
Slope: < 1%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.04 tons/year
Right Approach
Length: 200 ft.
Slope: < 1%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.33 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.53 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 Downstream Embankment | 2.5 ft. | 3 ft. | 3 ft. | Yes | Loam | Moderate (corrective actions recommended) | 0.14 |
Left Upstream Embankment | 2 ft. | 3 ft. | 2 ft. | Yes | Gravelly Loam | Minor (corrective actions recommended) | 0.01 |
Right Upstream Embankment | 3 ft. | 2.5 ft. | 1 ft. | Yes | Gravelly Loam | Minor (corrective actions recommended) | 0.01 |
Summary Information
Fish Passability: Barrier at High Flows
Is a future visit to this site recommended? Yes, Some moderate erosion and rust throughout structure. Affecting road and creates scour pools.
Were any non-native species observerd at this site? No
Site Comments: Velocity taken thru structure. Stream is very shallow upstream and get significantly deeper at inlet
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.