Road Stream Crossing Site TBW_TBOS73

Thunder Bay River Watershed, Unnamed inlet to Churchill Lake
Boiling Springs Road
Clinton Twp, Oscoda County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.81214 , -84.07577
T28N R03E Sec 16
Owned by Private
Fish Passability 0
Perch Height: 0.1 ft.
Total Erosion: 8.5092 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: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Structure is Rusted through
Dimensions of Structure: Length 76 ft. , Width 2.6 ft. , Height 2.6 ft.
Perch Height: 0.1 ft.
Structure Inlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.8 ft./sec.
Structure Outlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 4 ft./sec.
*Water Velocities were measured 0.1 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 11.5 ft. , Width 8.5 ft. , Depth 1 ft.
Riffle Information
Water Depth: 0.55 ft.
Bankfull Width: 11.3 ft.
Wetted Width: 6.3 ft.
Water Velocity: 1.2 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Sand County Road
Road Condition: Fair
Road Width at Culvert: 22 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 15 ft.
Slope: 1:2
Downstream
Fill Depth: 15 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 258 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.333
Erosion: 2.084 tons/year
Right Approach
Length: 606 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.745
Erosion: 6.4093 tons/year
Erosion Information
Total Erosion at Crossing: 8.5092 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)
Right Downstream Streambank
11 ft.
3 ft.
1.7 ft.
yes
Silt
0.0159
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site. VELOCITY BARRIER AND PERCH