Road Stream Crossing Site EUP_MRW14
Munuscong River Watershed, East Branch Munuscong River
E Sand Ridge Rd
Chippewa County
Information collected by:
Site Location
GPS Coordinates: 46.1003661,-84.2242998
T 043N R 002 Sec 19
Fish Passability: Barrier at Most Flows
Structure is NOT Perched
Total Erosion: 0.26 tons/year
Overall Score: 25
Severity: Moderate
Date Inventoried: 8/4/2021
Road Approach - Left
Road Approach - Right
Inlet
Upstream Conditions
Outlet
Downstream Conditions
Site Sketch
Crossing Information*
Type of Crossing: Culvert(s)
Number of Structures: 2
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Moderate to major deterioration from corrosion or abrasion (less than 5% of the structure has small holes or is nearly rusted through) or cracking or spalling or chipping (several small cracks or moderate chipping in the concrete). OR Moderate shape changes (described above).
Additional (Multiple) Structures | ||||
Structure | Width | Length | Height | Material |
1 | 7 ft. | 66 ft. | 7 ft. | Metal |
2 | 7 ft. | 66 ft. | 7 ft. | Metal |
Structure Interior: Smooth
Is Structure Rusted through? No
Dimensions of Structure: Length 66 ft. Width 7 ft. Height 7 ft.
Percentage Plugged: None or 0%
Percentage Crushed: 1% - 20%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.4 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1 ft./sec.
*Water Velocities were measured 0.5 ft. below 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: Perennial (if flowing during the time of assessment.)
Is Scour Pool Present? Yes
Scour Pool: Length 36 ft., Width 36 ft., Depth 3 ft.
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 0 ft.
Bankfull Width: 0 ft.
Wetted Width: 0 ft.
Water Velocity: 0 ft./sec. (measured via Flow Meter)
Dominant Substrate: Organics – decomposing plant material
Road Information
Road Surface: Gravel
Owner: County
Road Condition: New Pavement or Well Graded, Same condition as initial placement.
Road Core Integrity: Good (no symptoms of lack of integrity)
Road Width at Culvert: 14 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4.7 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Downstream
Fill Depth: 3 ft.
Slope: Moderate, 2:1, 22.5°, or 41%
Approaches
Left Approach
Length: 1000 ft.
Slope: < 1%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0.23 tons/year
Right Approach
Length: 175 ft.
Slope: < 1%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0.03 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.26 tons/year
Summary Information
Fish Passability: Barrier at Most Flows
Is a future visit to this site recommended? No
Were any non-native species observerd at this site? Yes, Birds-foot trefoil, reed canary grass, wild parsnip.
Site Comments: Representative reach inaccessible due to private land
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.