Road Stream Crossing Site EUP_MRW15
Munuscong River Watershed, East Branch Munuscong River
S Aldrich Rd
Chippewa County
Information collected by:
Site Location
GPS Coordinates: 46.1193786,-84.2806806
T 043N R 001 Sec 15
Fish Passability: Not a Barrier
Structure is NOT Perched
Total Erosion: 0.31 tons/year
Overall Score: 11
Severity: Minor
Date Inventoried: 8/4/2021
Road Approach - Left
Road Approach - Right
Inlet
Upstream Conditions
Outlet
Downstream Conditions
Representative Reach
Site Sketch
Crossing Information*
Type of Crossing: Bridge
Number of Structures: 1
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Headwall and Wingwall
Outlet Type: At Stream Grade
Structure Material: Other
Structure Substrate: None
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 16 ft. Width 30 ft. Height 14 ft.
Percentage Plugged: 21% - 40% Outlet
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 3.4 ft.
Embedded Depth of Structure: 2 ft.
Water Velocity*: 0.3 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 2 ft.
Water Velocity*: 1.6 ft./sec.
*Water Velocities were measured 2.5 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? No
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 1 ft.
Bankfull Width: 25 ft.
Wetted Width: 15 ft.
Water Velocity: 1 ft./sec. (measured via Float Test)
Dominant Substrate: Clay – very fine particles that stick together
Road Information
Road Surface: Gravel
Owner: State
Road Condition: Old Pavement or Rutted, Minor cracking or rutting/ponding at crossing all or part of crossing length.
Road Core Integrity: Fair (some of the symptoms may be present, but not to an extent posing high risk to the crossing)
Road Width at Culvert: 10 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 0 ft.
Slope: Vertical, 0:1, or 90°
Downstream
Fill Depth: 0 ft.
Slope: Vertical, 0:1, or 90°
Approaches
Left Approach
Length: 0 ft.
Slope: < 1%
Vegetation: None, Ditch has been recently graded and is bare of vegetation.
Erosion Estimate: 0 tons/year
Right Approach
Length: 200 ft.
Slope: < 1%
Vegetation: None, Ditch has been recently graded and is bare of vegetation.
Erosion Estimate: 0.31 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.31 tons/year
Summary Information
Fish Passability: Not a Barrier
Is a future visit to this site recommended? No
Were any non-native species observerd at this site? Yes, Queen annes lace.
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.