Road Stream Crossing Site GTBAY_ANTC002

East Bay Shoreline & Tributaries Watershed, Antrim Creek
Brant Rd
Banks Twp, Antrim County
Information collected by:
Site Location
GPS Coordinates: 45.174303 , -85.3667
T32N R9W Sec 14
Owned by Private
Fish Passability 0.5
Total Erosion: 0.1757 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: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 14 ft. , Width 3.5 ft. , Height 3.5 ft.
Structure Inlet
Water Depth: 0.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 0.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.8 ft./sec.
*Water Velocities were measured 0.1 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.2 ft.
Bankfull Width: 6.2 ft.
Wetted Width: 5.5 ft.
Water Velocity: 0.7 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Sand Private Road
Road Condition: Poor
Road Width at Culvert: 12 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 0.5 ft.
Slope: Vertical
Downstream
Fill Depth: 0.8 ft.
Slope: Vertical
Approaches
Left Approach
Length: 25 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0041 tons/year
Right Approach
Length: 110 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.384
Erosion: 0.1396 tons/year
Erosion Information
Total Erosion at Crossing: 0.1757 tons/year
Extent of Erosion: Moderate
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Upstream Embankment
12 ft.
1 ft.
0.2 ft.
yes
Sand
0.0185
Right Downstream Embankment
10 ft.
0.6 ft.
0.2 ft.
yes
Sandy Loam
0.0134
Summary Information
Fish Passability 0.5