Road Stream Crossing Site GTBAY_GCN014

East Bay Shoreline & Tributaries Watershed, Guyer Creek North
Timberlane Drive
Banks Twp, Antrim County
Information collected by:
Site Location
GPS Coordinates: 45.14515 , -85.36673
T32N R9W Sec 25
Owned by Private
Fish Passability 0
Perch Height: 0.1 ft.
Total Erosion: 0.0519 tons/year
Severity: Severe
Year Inventoried: 2020
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 2
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: Freefall into Pool
Structure Material: Concrete
Structure Substrate: None
General Conditions: Good
Multiple Culverts/Spans
Culvert/Span
Width
Length
Height
Material
1
1.3 ft.
28 ft.
1.3 ft.
Concrete
2
1.3 ft.
28 ft.
1.3 ft.
Concrete
Structure Interior: smooth
Dimensions of Structure: Length 28 ft. , Width 1.3 ft. , Height 1.3 ft.
Perch Height: 0.1 ft.
Structure Inlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.6 ft./sec.
Structure Outlet
Water Depth: 0.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 5 ft./sec.
*Water Velocities were measured 0.1 ft. below Surface (with Meter)
Additional Comments
Water depth and velocity measurements recorded for culvert #1
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 6.5 ft. , Width 7 ft. , Depth 1.2 ft.
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 10.8 ft.
Wetted Width: 6.5 ft.
Water Velocity: 1.2 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel Private Road
Road Condition: Good
Road Width at Culvert: 13 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.7 ft.
Slope: 1:1
Downstream
Fill Depth: 2 ft.
Slope: Vertical
Approaches
Left Approach
Length: 25 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.29
Erosion: 0.026 tons/year
Right Approach
Length: 25 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.29
Erosion: 0.026 tons/year
Erosion Information
Total Erosion at Crossing: 0.0519 tons/year
Summary Information
Fish Passability 0