Road Stream Crossing Site GTBAY_S435A

Boardman River Watershed, Swainston Creek
Blair Street
Paradise Twp, Grand Traverse County
Information collected by:
Site Location
GPS Coordinates: 44.58388 , -85.539087
T25N R10W Sec 08
Owned by Private
Fish Passability 0.5
Total Erosion: 0.677 tons/year
Severity: Moderate
Year Inventoried: 2020
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Structure Shape: Round
Inlet Type: Apron
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Rock
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 115 ft. , Width 3 ft. , Height 3 ft.
Structure Inlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 1.4 ft./sec.
Structure Outlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0.3 ft./sec.
*Water Velocities were measured at the Surface (with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 7.8 ft.
Wetted Width: 3.6 ft.
Water Velocity: 1 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved Town Road
Road Condition: Good
Road Width at Culvert: 32 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 2.7 ft.
Slope: More than 1:2
Downstream
Fill Depth: 3.3 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.64
Erosion: 0.3385 tons/year
Right Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.64
Erosion: 0.3385 tons/year
Erosion Information
Total Erosion at Crossing: 0.677 tons/year
Summary Information
Fish Passability 0.5