Road Stream Crossing Site P029

Pine River Watershed, Big Beaver Creek
200th Ave
Leroy Twp, Osceola County
Information collected by:
Site Location
GPS Coordinates: 44.04608 , -85.48363
T19N R10W Sec 10
Owned by Private
Structure is NOT Perched
Total Erosion: 0.6197 tons/year
Severity: Moderate
Year Inventoried: 2014
Site ID
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Erosion
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Ellipse
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 60 ft. , Width 6 ft. , Height 5.6 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 3.1 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0.2 ft./sec.
Structure Outlet
Water Depth: 1.9 ft.
Embedded Depth of Structure: 1.3 ft.
Water Velocity*: 0.2 ft./sec.
*Water Velocities were measured 0.8 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 25 ft. , Width 30 ft. , Depth 2.7 ft.
Upstream Pond: Length 50 ft. , Width 30 ft. , Depth 3 ft.
Riffle Information
Water Depth: 0.6 ft.
Bankfull Width: 13 ft.
Wetted Width: 11 ft.
Water Velocity: 0.4 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 29 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 11.5 ft.
Slope: 1:2
Downstream
Fill Depth: 10 ft.
Slope: 1:2
Approaches
Left Approach
Length: 250 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.44
Erosion: 0.1055 tons/year
Right Approach
Length: 800 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.55
Erosion: 0.4218 tons/year
Erosion Information
Total Erosion at Crossing: 0.6197 tons/year
Extent of Erosion: Moderate
Erosion is occurring and corrective actions can be installed to address the problem.
Notes:

Erosion directly below washout hole on west side of road.

Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Downstream Embankment
4 ft.
2.5 ft.
3 ft.
yes
Sand
0.0924
Summary Information
Erosion is an area of concern for this site.
A future visit to this site is recommended.

Yes, monitor erosion/washout hole at road and sediment load in outlet.