Road Stream Crossing Site UBR_EB02

Upper Black River Watershed, East Branch Black River
Co. Rd. 622
Montmorency County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 45.0705868,-84.2837648
T 031N R 001 Sec 14
Fish Passability: Potential Behavioral Barrier
Structure is NOT Perched
Total Erosion: 0 tons/year
Overall Score: 8
Severity: Minor
Date Inventoried: 10/7/2021
Road Approach - Left
Road Approach - Left
Road Approach - Right
Road Approach - Right
Inlet
Inlet
Upstream Conditions
Upstream Conditions
Outlet
Outlet
Downstream Conditions
Downstream Conditions
Representative Reach
Representative Reach
Site Sketch
Site Sketch
Crossing Information*
Type of Crossing: Culvert(s)
Number of Structures: 1
Structure Shape: Native Bottom Arch
Inlet Type: Headwall and Wingwall
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: No deficiencies. New structure or nearly new condition.
Structure Interior: Corrugated
Is Structure Rusted through? No
Dimensions of Structure: Length 41 ft. Width 32.6 ft. Height 6 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 3.8 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 3.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.6 ft./sec.
*Water Velocities were measured 3.2 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? No
Is Upstream Ponding Present? No
Riffle Information
Water Depth: 4 ft.
Bankfull Width: 24 ft.
Wetted Width: 24 ft.
Water Velocity: 0.6 ft./sec. (measured via Flow Meter)
Dominant Substrate: Sand particles are smaller than a pinhead and feel gritty between fingers
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: 26.6 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: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0 tons/year
Right Approach
Length: 0 ft.
Slope: < 1%
Vegetation: None, Ditch has been recently graded and is bare of vegetation.
Erosion Estimate: 0 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0 tons/year
Summary Information
Fish Passability: Potential Behavioral Barrier
Is a future visit to this site recommended? No
Were any non-native species observerd at this site? Yes, Spotted knapweed.
Site Comments: Newly replaced in 2020
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.