Road Stream Crossing Site TBW_TBMO205
Thunder Bay River Watershed, North Branch Thunder Bay River
County Road 451
Montmorency Twp,
Montmorency County
Information collected by:
Site Location
GPS Coordinates: 45.19194
, -83.89184
T32N
R4E
Sec 01
Fish Passability 0.9
Total Erosion: 1.147 tons/year
Severity: Moderate
Year Inventoried: 2017
Site ID
Inlet
Outlet
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: Rock
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 36 ft.
, Width 58.3 ft.
, Height 6.6 ft.
Structure Inlet
Water Depth: 1.2 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 1.2 ft.
Water Velocity*: 1 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 1.4 ft.
Bankfull Width: 32 ft.
Wetted Width: 29 ft.
Water Velocity: 0.9 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 34 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Approaches
Left Approach
Length: 450 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.49
Erosion: 0.2478 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.8
Erosion: 0.8992 tons/year
Erosion Information
Total Erosion at Crossing: 1.147 tons/year
Extent of Erosion: Minor
Summary Information
Fish Passability 0.9
These non-native species were observerd at this site: Queen Anne's Lace, Mullein, Autumn Olive, Reed Canary Grass