Road Stream Crossing Site TBW_TBMO23

Thunder Bay River Watershed, Stanniger Creek
McCormick Lake Road
Vienna Twp, Montmorency County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.95884 , -84.25555
T30N R01E Sec 25
Owned by State
Fish Passability 0
Structure is NOT Perched
Total Erosion: 3.876 tons/year
Severity: Severe
Year Inventoried: 2017
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Pipe Arch
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 65 ft. , Width 6 ft. , Height 5 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 6.5 ft./sec.
Structure Outlet
Water Depth: 1.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.1 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 17 ft. , Width 12.4 ft. , Depth 1.35 ft.
Riffle Information
Water Depth: 1.45 ft.
Bankfull Width: 11 ft.
Wetted Width: 10.4 ft.
Water Velocity: 1.9 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 19 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Fill Depth: 3 ft.
Slope: 1:2
Fill Depth: 4.8 ft.
Slope: More than 1:2
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 2.9835 tons/year
Right Approach
Length: 350 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.47
Erosion: 0.861 tons/year
Erosion Information
Total Erosion at Crossing: 3.876 tons/year
Extent of Erosion: Moderate
Erosion is occurring and corrective actions can be installed to address the problem.
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Reaching Stream?
Left Upstream Embankment
9 ft.
6 ft.
0.5 ft.
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site. VELOCITY
These non-native species were observerd at this site: Mullein, Spotted Knapweed