Road Stream Crossing Site GTBAY_S708
Boardman River Watershed, Twenty-Two Creek Tributary
Two-Track off Mayfield
Union Twp,
Grand Traverse County
Information collected by:
Site Location
GPS Coordinates: 44.623761
, -85.393826
T26N
R9W
Sec 27
Owned by State
Fish Passability 0.9
Total Erosion: 0.0062 tons/year
Severity: Minor
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: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Poor
Structure Interior: smooth
Dimensions of Structure: Length 21 ft.
, Width 2.8 ft.
, Height 2.8 ft.
Structure Inlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.9 ft./sec.
Structure Outlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0.6 ft./sec.
*Water Velocities were measured 0.4 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 7 ft.
Wetted Width: 5 ft.
Water Velocity: 0.6 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Sand
Other Road
Road Condition: Poor
Road Width at Culvert: 9 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1 ft.
Slope: Vertical
Downstream
Fill Depth: 1 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 25 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0031 tons/year
Right Approach
Length: 25 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0031 tons/year
Erosion Information
Total Erosion at Crossing: 0.0062 tons/year
Summary Information
Fish Passability 0.9