Road Stream Crossing Site EUP_6336539911
Carp River Watershed, Carp River
W Huckleberry Lake Rd
Chippewa County
Information collected by:
Superior Watershed Partnership
Site Location
GPS Coordinates: 46.170571712,-85.026454004
T 044NN R 006W Sec 35
Fish Passability: Barrier
Structure is NOT Perched
Total Erosion: 0.09 tons/year
Overall Score: 31
Severity: Severe
Date Inventoried: 4/22/2021
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: Other
Outlet Type: Other
Structure Material: Metal
Structure Substrate: Rock
General Conditions: Light superficial corrosion or abrasion or chipping or spalling or cracking. No shape changes (described above).
Structure Interior: Other
Is Structure Rusted through? Yes
Dimensions of Structure: Length 18 ft. Width 35 ft. Height 7.8 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 6.1 ft./sec.
Structure Outlet
Water Depth: 2.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.1 ft./sec.
Additional Comments
Updated by huron pines. N. Theisen L. Schmock
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 30 ft., Width 20 ft., Depth 6 ft.
Is Upstream Ponding Present? Yes
Pond: Length 30 ft., Width 150 ft.
Riffle Information
Water Depth: 2.8 ft.
Bankfull Width: 30 ft.
Wetted Width: 26 ft.
Water Velocity: 0.3 ft./sec. (measured via Flow Meter)
Dominant Substrate: Sand – particles are smaller than a pinhead and feel gritty between fingers
Road Information
Road Surface: Paved
Owner: Township
Road Condition: New Pavement or Well Graded, Same condition as initial placement.
Road Core Integrity: Poor (one or more symptoms are present and are compromising the integrity of the crossing)
Road Width at Culvert: 18 ft.
Location of Low Point: At Stream
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: 100 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.02 tons/year
Right Approach
Length: 250 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Estimate: 0.07 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0.09 tons/year
Summary Information
Fish Passability: Barrier
Is a future visit to this site recommended? Yes, To assess beaver activity, rust on bridge posts, and old wooden structure that is changing stream flow.
Were any non-native species observerd at this site? Yes, Spotted knapweed.
Site Comments: Old wooden posts changing stream flow under bridge and downstream
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.