Road Stream Crossing Site TBW_TBMO207
Thunder Bay River Watershed, Brush Creek
Pleasant Valley Road
Hillman Twp,
Montmorency County
Information collected by:
Site Location
GPS Coordinates: 45.06359
, -83.90201
T31N
R4E
Sec 23
Owned by Local Government
Fish Passability 0
Perch Height: 10 ft.
Total Erosion: 0.676 tons/year
Severity: Severe
Year Inventoried: 2017
Site ID
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Left
Crossing Information
Type of Crossing: Dam
Structure Shape: Round
Inlet Type: Other
Outlet Type: Outlet Apron
Structure Material: Metal
Structure Substrate: Rock
General Conditions: Fair
Structure Interior: corrugated
Structure is Rusted through
Dimensions of Structure: Length 56 ft.
, Width 6 ft.
, Height 7 ft.
Perch Height: 10 ft.
Structure Inlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 4.6 ft./sec.
Structure Outlet
Water Depth: 1.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 5.6 ft./sec.
*Water Velocities were measured 0.3 ft. below Surface
(with Meter)
Additional Comments
DOWNSTREAM IMMEDIATELY FLOWS INTO MAIN STEM THUNDER BAY/ USED RIFFLE FROM TBMO206
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 3.2 ft.
Bankfull Width: 106 ft.
Wetted Width: 84 ft.
Water Velocity: 2 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
Town Road
Road Condition: Good
Road Width at Culvert: 29 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Approaches
Left Approach
Length: 219 ft.
Slope: 1% to 5%
Vegetation: None
LS Factor: 0.597
Erosion: 0.1253 tons/year
Right Approach
Length: 775 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.741
Erosion: 0.5507 tons/year
Erosion Information
Total Erosion at Crossing: 0.676 tons/year
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site.
These non-native species were observerd at this site: Queen Anne's Lace and Spotted Knapweed