Road Stream Crossing Site PM_O019

Pere Marquette River Watershed, Beaver Creek
168th Ave
Leavitt Twp, Oceana County
Information collected by:
Site Location
GPS Coordinates: 43.661377935362 , -86.13903388381
T15N R15W Sec 30
Owned by Private
Federal
Total Erosion: 4.0883 tons/year
Severity: Severe
Year Inventoried: 2014
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: Trash Rack
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Structure is Rusted through
Dimensions of Structure: Length 48 ft. , Width 5 ft. , Height 5 ft.
Structure Inlet
Water Depth: 0.5 ft.
Water Velocity*: 0.3 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Water Velocity*: 0.3 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface (with Meter)
Additional Comments

Inlet has steel grates across it to block debris.

Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 20 ft. , Width 20 ft. , Depth 2 ft.
Upstream Pond: Length 15 ft. , Width 12 ft.
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 15 ft.
Wetted Width: 14 ft.
Water Velocity: 0.3 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Sand County Road
Road Condition: Good
Road Width at Culvert: 27 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1 ft.
Slope: 1:2
Downstream
Fill Depth: 1.8 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 300 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.46
Erosion: 1.0264 tons/year
Right Approach
Length: 600 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.52
Erosion: 2.3207 tons/year
Erosion Information
Total Erosion at Crossing: 4.0883 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 Downstream Streambank
30 ft.
4 ft.
2 ft.
yes
Loam
0.3696
Left Downstream Embankment
4 ft.
5 ft.
2 ft.
yes
Loam
0.0493
Left Upstream Embankment
8 ft.
2 ft.
1 ft.
yes
Loam
0.0493
Left Upstream Embankment
3 ft.
5 ft.
2 ft.
yes
Gravelly Loam
0.042
Left Approach
300 ft.
1 ft.
0.1 ft.
yes
Sand
0.231
Summary Information
Erosion is an area of concern for this site.