Road Stream Crossing Site GTBAY_ANTC004
East Bay Shoreline & Tributaries Watershed, Antrim Creek
Rex Beach Rd
Banks Twp,
Antrim County
Information collected by:
Site Location
GPS Coordinates: 45.181613
, -85.368124
T32N
R9W
Sec 11
Owned by Private
Fish Passability 0
Perch Height: 0.8 ft.
Total Erosion: 0.5955 tons/year
Severity: Severe
Year Inventoried: 2020
Inlet
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: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 60 ft.
, Width 2.5 ft.
, Height 2.5 ft.
Perch Height: 0.8 ft.
Structure Inlet
Water Depth: 0.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.4 ft./sec.
Structure Outlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.9 ft./sec.
*Water Velocities were measured at the Surface
(with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 20.5 ft.
, Width 17.9 ft.
, Depth 3 ft.
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 4 ft.
Wetted Width: 2.7 ft.
Water Velocity: 0.7 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 22 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 6.5 ft.
Slope: 1:1.5
Downstream
Fill Depth: 6.5 ft.
Slope: 1:1
Approaches
Left Approach
Length: 500 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.635
Erosion: 0.5945 tons/year
Right Approach
Length: 25 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0009 tons/year
Erosion Information
Total Erosion at Crossing: 0.5955 tons/year
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Downstream Embankment |
6 ft. |
2 ft. |
1 ft. |
yes |
Gravelly Loam |
|
Left Downstream Embankment |
6 ft. |
2 ft. |
1 ft. |
yes |
Gravelly Loam |
|
Summary Information
Fish Passability 0
These non-native species were observerd at this site: Spotted Knapweed