Road Stream Crossing Site EUP_MRW16
Munuscong River Watershed, Unnamed
S Pennington Rd
Chippewa County
Information collected by:
Site Location
GPS Coordinates: 46.1402825,-84.3217088
T 043N R 001 Sec 09
Fish Passability: Not Assessed
Perch Height: 0.4 ft.
Total Erosion: 0.8 tons/year
Overall Score: 19
Severity: Severe
Date Inventoried: 8/5/2021
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: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
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: Smooth
Is Structure Rusted through? No
Dimensions of Structure: Length 43 ft. Width 6 ft. Height 6 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Perch Height: 0.4 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: None – The streambed is dry and there is no water flow.
Stream Flow Type: Intermittent (if channel is dry but has obviously flowed recently, appears to flow annually).
Is Scour Pool Present? Yes
Scour Pool: Length 40 ft., Width 30 ft., Depth 1 ft.
Is Upstream Ponding Present? Yes
Pond: Length 30 ft., Width 5 ft.
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 5.8 ft.
Wetted Width: 4 ft.
Water Velocity: 0 ft./sec. (measured via Flow Meter)
Dominant Substrate: Clay – very fine particles that 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: 31 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 5.5 ft.
Slope: Vertical, 0:1, or 90°
Downstream
Fill Depth: 5.6 ft.
Slope: Vertical, 0:1, or 90°
Approaches
Left Approach
Length: 350 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.17 tons/year
Right Approach
Length: 400 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.63 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.8 tons/year
Summary Information
Fish Passability: Not Assessed
Is a future visit to this site recommended? No
Were any non-native species observerd at this site? Yes, Spotted knapweed, thistle.
Site Comments: Water sitting in stream channel
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.