Road Stream Crossing Site TBW_TBAC141

Thunder Bay River Watershed, Buck's Pond
Lakesided Trail
Mitchell Twp, Alcona County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.69875 , -83.69463
T27N R6E Sec 27
Owned by Private
Fish Passability 0
Perch Height: 1.3 ft.
Total Erosion: 2.4194 tons/year
Severity: Severe
Year Inventoried: 2017
Site ID
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Dam
Structure Shape: Square/Rectangle
Inlet Type: Headwall
Outlet Type: Cascade over Riprap
Structure Material: Concrete
Structure Substrate: None
General Conditions: Poor
Structure Interior: smooth
Dimensions of Structure: Length 16 ft. , Width 4.1 ft. , Height 4.8 ft.
Perch Height: 1.3 ft.
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.9 ft./sec.
Structure Outlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 10.2 ft./sec.
*Water Velocities were measured at the Surface (with Meter)
Additional Comments
DAM IS WASHED OUT UNDERNEATH ON DOWNSTREAM SIDE
Stream Information
Stream Flow: Less than Bankfull
Upstream Pond: Length 1000 ft. , Width 1000 ft.
Riffle Information
Water Depth: 0.8 ft.
Bankfull Width: 12 ft.
Wetted Width: 8.7 ft.
Water Velocity: 2 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Sand Private Road (Seasonal)
Road Condition: Fair
Road Width at Culvert: 16 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: 246 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.313
Erosion: 1.4235 tons/year
Right Approach
Length: 363 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.473
Erosion: 0.7562 tons/year
Erosion Information
Total Erosion at Crossing: 2.4194 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 Approach
218 ft.
2 ft.
1 ft.
yes
Sand
0.2398
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site. DAM/VELOCITY
These non-native species were observerd at this site: Spotted Knapweed