Road Stream Crossing Site GTBAY_S427
Boardman River Watershed, East Creek
Knight Rd
Paradise Twp,
Grand Traverse County
Information collected by:
Site Location
GPS Coordinates: 44.61153
, -85.4549
T26N
R10W
Sec 36
Owned by Private
Fish Passability 0.5
Total Erosion: 0.3438 tons/year
Severity: Restored
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: Rock
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 71 ft.
, Width 5 ft.
, Height 5 ft.
Percentage Plugged:
Inlet: 1% to 25%
Structure Inlet
Water Depth: 1.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2 ft./sec.
Structure Outlet
Water Depth: 1.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.6 ft./sec.
*Water Velocities were measured 1 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.8 ft.
Bankfull Width: 12 ft.
Wetted Width: 10 ft.
Water Velocity: 1.7 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 27 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 5.2 ft.
Slope: 1:2
Downstream
Fill Depth: 4.6 ft.
Slope: 1:2
Approaches
Left Approach
Length: 100 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0045 tons/year
Right Approach
Length: 400 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.48
Erosion: 0.1714 tons/year
Erosion Information
Total Erosion at Crossing: 0.3438 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) | |
Left Upstream Embankment |
4 ft. |
2 ft. |
3 ft. |
yes |
Gravelly Loam |
0.084 |
Right Upstream Embankment |
4 ft. |
4 ft. |
3 ft. |
yes |
Gravelly Loam |
0.084 |
Summary Information
Fish Passability 0.5