Road Stream Crossing Site TBW_TBMO63

Thunder Bay River Watershed, Thunder Bay River
M 33
Avery Twp, Montmorency County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.9719 , -84.0321
T30N R3E Sec 24
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 0.8291 tons/year
Severity: Moderate
Year Inventoried: 2017
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Gravel
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 54 ft. , Width 62 ft. , Height 10 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 3 ft.
Water Velocity*: 2.7 ft./sec.
Structure Outlet
Water Depth: 2.7 ft.
Water Velocity*: 2.5 ft./sec.
*Water Velocities were measured 1.5 ft. below Surface (with Meter)
Additional Comments
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 6 ft.
Bankfull Width: 40 ft.
Wetted Width: 40 ft.
Water Velocity: 1.8 ft./sec. (Measured with Meter)
Dominant Substrate: Clay
Road Information
Paved State Road
Road Condition: Good
Road Width at Culvert: 44 ft.
Location of Low Point: Other
Runoff Path: Ditch
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.8291 tons/year
Erosion Information
Total Erosion at Crossing: 0.8291 tons/year
Extent of Erosion: Stabilized
Notes: Runoff sediment collecting on bridge
Summary Information
Fish Passability 0.5
These non-native species were observerd at this site: Spotted Knapweed