Road Stream Crossing Site EUP_CHRW04
Charlotte River Watershed, Unnamed
M129
Chippewa County
Information collected by:
Site Location
GPS Coordinates: 46.3473536,-84.3641103
T 046N R 001 Sec 30
Fish Passability: Barrier
Perch Height: 0.5 ft.
Total Erosion: 0.1 tons/year
Overall Score: 28
Severity: Severe
Date Inventoried: 6/9/2021
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: 2
Structure Shape: Round
Inlet Type: Mitered
Outlet Type: Cascade Over Riprap
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.
Additional (Multiple) Structures | ||||
Structure | Width | Length | Height | Material |
1 | 7 ft. | 210 ft. | 8 ft. | Metal |
2 | 7 ft. | 210 ft. | 8 ft. | Metal |
Structure Interior: Corrugated
Is Structure Rusted through? Yes
Dimensions of Structure: Length 210 ft. Width 7 ft. Height 8 ft.
Percentage Plugged: None or 0%
Percentage Crushed: 1% - 20%
Perch Height: 0.5 ft.
Structure Inlet
Water Depth: 0 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 0 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured at 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: Intermittent (if channel is dry but has obviously flowed recently, appears to flow annually).
Is Scour Pool Present? No
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 1 ft.
Bankfull Width: 4 ft.
Wetted Width: 3.8 ft.
Water Velocity: 0 ft./sec. (measured via Flow Meter)
Dominant Substrate: Silt – very fine particles that don't stick together
Road Information
Road Surface: Paved
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: 30 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 8 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Downstream
Fill Depth: 9 ft.
Slope: Gentle, 3:1, 15°, or 33%
Approaches
Left Approach
Length: 1000 ft.
Slope: < 1%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.05 tons/year
Right Approach
Length: 1000 ft.
Slope: < 1%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.05 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.1 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? Yes, Reed canary grass, knapweed, mullein.
Site Comments: Very large culverts.
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.