Road Stream Crossing Site GTBAY_AC008
Acme Creek Watershed, Acme Creek
Bunker Hill Rd
Acme Twp,
Grand Traverse County
Information collected by:
Site Location
GPS Coordinates: 44.758815
, -85.489133
T27N
R10W
Sec 02
Owned by Private
Fish Passability 0
Total Erosion: 0.4115 tons/year
Severity: Severe
Year Inventoried: 2020
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Erosion
Erosion
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: Good
Structure Interior: corrugated
Dimensions of Structure: Length 57 ft.
, Width 3 ft.
, Height 3 ft.
Structure Inlet
Water Depth: 1.3 ft.
Embedded Depth of Structure: 0.4 ft.
Water Velocity*: 3.3 ft./sec.
Structure Outlet
Water Depth: 1.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.9 ft./sec.
*Water Velocities were measured 0.7 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.9 ft.
Bankfull Width: 15.8 ft.
Wetted Width: 12.5 ft.
Water Velocity: 1.1 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 23.5 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 9.5 ft.
Slope: Vertical
Downstream
Fill Depth: 10 ft.
Slope: Vertical
Approaches
Left Approach
Length: 50 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0.0019 tons/year
Right Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.64
Erosion: 0.2486 tons/year
Erosion Information
Total Erosion at Crossing: 0.4115 tons/year
Extent of Erosion: Moderate
Notes: Upstream erosion is along both left and right embankment
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Downstream Embankment |
3 ft. |
2 ft. |
3 ft. |
yes |
Gravelly Loam |
0.063 |
Left Downstream Embankment |
3 ft. |
1.5 ft. |
2 ft. |
yes |
Gravelly Loam |
0.042 |
Right Upstream Embankment |
40 ft. |
6 ft. |
0.2 ft. |
yes |
Gravel |
0.056 |
Summary Information
Fish Passability 0
Erosion is an area of concern for this site.
Erosion is extensive and culvert is undersized.
These non-native species were observerd at this site: Autumn Olive, Spotted Knapweed