Road Stream Crossing Site AB33

Alcona-Black River Watershed, Haynes Creek
N Poor Farm Rd
Alcona County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.71044416,-83.34169649
T 027N R 009 Sec 27
Fish Passability: Not a Barrier
Structure is NOT Perched
Total Erosion: 0.36 tons/year
Overall Score: 5
Severity: Minor
Date Inventoried: 10/6/2022
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: Pipe Arch
Inlet Type: Mitered
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Not new, but no noticeable corrosion, abrasion, chipping, spalling, or cracking. No shape changes such as barrel distortion (bowing, bending, warping), bulging, inlet or outlet damaged.
Structure Interior: Corrugated
Dimensions of Structure: Length 60 ft. Width 11 ft. Height 8 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 2 ft.
Embedded Depth of Structure: 0.4 ft.
Water Velocity*: 0.1 ft./sec.
Structure Outlet
Water Depth: 1.9 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0.1 ft./sec.
*Water Velocities were measured 1.8 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: 0.2 ft.
Bankfull Width: 12 ft.
Wetted Width: 11.1 ft.
Water Velocity: 0.6 ft./sec. (measured via Flow Meter)
Dominant Substrate: Organics – decomposing plant material
Road Information
Road Surface: Paved
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: 21.7 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 2 ft.
Slope: Gentle, 3:1, 15°, or 33%
Downstream
Fill Depth: 1.5 ft.
Slope: Gentle, 3:1, 15°, or 33%
Approaches
Left Approach
Length: 700 ft.
Slope: 1-5%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0.36 tons/year
Right Approach
Length: 0 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.36 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? No
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.