Road Stream Crossing Site TBW_TBMO32

Thunder Bay River Watershed, Crooked Creek
County Road 487
Briley Twp, Montmorency County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.98706 , -84.14297
T30N R2E Sec 13
Owned by Private
Local Government
Perch Height: 1 ft.
Total Erosion: 0.9435 tons/year
Severity: Moderate
Year Inventoried: 2017
Inlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Dam
Structure Shape: Square/Rectangle
Inlet Type: Other
Outlet Type: Outlet Apron
Structure Material: Concrete
Structure Substrate: None
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 60 ft. , Width 11.6 ft. , Height 9 ft.
Perch Height: 1 ft.
Structure Inlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 5.2 ft./sec.
Structure Outlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 9.3 ft./sec.
*Water Velocities were measured 0.1 ft. below Surface (with Meter)
Additional Comments
LAKE UPSTREAM (COULD NOT ACCESS RIFFLE)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 120 ft. , Width 82 ft. , Depth 5 ft.
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 25 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 0.3 ft.
Slope: Vertical
Downstream
Fill Depth: 0.5 ft.
Slope: Vertical
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.4711 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.4711 tons/year
Erosion Information
Total Erosion at Crossing: 0.9435 tons/year
Extent of Erosion: Minor
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Left Upstream Embankment
1.2 ft.
1.6 ft.
1.2 ft.
no
Gravel
0.0014
Summary Information
Fish Passage is an area of concern for this site. DAM
These non-native species were observerd at this site: Spotted Knapweed