Road Stream Crossing Site TBW_TBMO52

Thunder Bay River Watershed, Gilchirst Creek
County Road 612
Loud Twp, Montmorency County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.89913 , -84.05258
T29N R3E Sec 15
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 1.9653 tons/year
Severity: Moderate
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: Headwall
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 52 ft. , Width 16 ft. , Height 9 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 2.1 ft.
Embedded Depth of Structure: 0.6 ft.
Water Velocity*: 2.3 ft./sec.
Structure Outlet
Water Depth: 1.9 ft.
Embedded Depth of Structure: 1 ft.
Water Velocity*: 2.9 ft./sec.
*Water Velocities were measured 1.2 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 65 ft. , Width 35 ft. , Depth 6 ft.
Riffle Information
Water Depth: 1.6 ft.
Bankfull Width: 22.6 ft.
Wetted Width: 19.4 ft.
Water Velocity: 3.4 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 29 ft.
Location of Low Point: Other
Runoff Path: Ditch
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Left Approach
Length: 1000 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 2.05
Erosion: 1.9653 tons/year
Right Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 1.9653 tons/year
Extent of Erosion: Minor
Summary Information
Fish Passability 0.5
A future visit to this site is recommended. MODERATE SEVERITY
These non-native species were observerd at this site: Mullein