Road Stream Crossing Site TBW_TBMO08

Thunder Bay River Watershed, Haymeadow Creek
Gerber Road
Briley Twp, Montmorency County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 45.00782 , -84.14798
T30N R2E Sec 12
Owned by Private
Structure is NOT Perched
Total Erosion: 0.3427 tons/year
Severity: Minor
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: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 36 ft. , Width 4.6 ft. , Height 4.6 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 2.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.3 ft./sec.
Structure Outlet
Water Depth: 2.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 4.5 ft./sec.
*Water Velocities were measured 1 ft. below Surface (with Meter)
Stream Information
Stream Flow: Bankfull
Road Information
Paved Other Road
Road Condition: Fair
Road Width at Culvert: 18 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Fill Depth: 0.8 ft.
Slope: More than 1:2
Fill Depth: 0.4 ft.
Slope: More than 1:2
Left Approach
Length: 475 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.495
Erosion: 0.1399 tons/year
Right Approach
Length: 570 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.514
Erosion: 0.1743 tons/year
Erosion Information
Total Erosion at Crossing: 0.3427 tons/year
Extent of Erosion: Minor
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?
Right Upstream Streambank
19 ft.
9 ft.
1.5 ft.
Gravelly Loam
Summary Information
Fish Passage is an area of concern for this site. VELOSITY
A future visit to this site is recommended. FISH PASSAGE