Road Stream Crossing Site P031

Pine River Watershed, Big Beaver Creek
220th Ave
Leroy Twp, Osceola County
Information collected by:
Site Location
GPS Coordinates: 44.04232 , -85.5236
T19N R10W Sec 17
Owned by Private
Structure is NOT Perched
Total Erosion: 1.0111 tons/year
Severity: Minor
Year Inventoried: 2014
Site ID
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Other
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Sand
General Conditions: New
Structure Interior: smooth
Dimensions of Structure: Length 30 ft. , Width 90 ft. , Height 7 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1 ft./sec.
*Water Velocities were measured 0.6 ft. below Surface (with Meter)
Additional Comments

Approaches paved, rest of road gravel, bridge built in 2012.

Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Upstream Pond: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Riffle Information
Water Depth: 0.9 ft.
Bankfull Width: 20 ft.
Wetted Width: 18 ft.
Water Velocity: 0.9 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 29 ft.
Location of Low Point: Other
Runoff Path: Roadway
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Approaches
Left Approach
Length: 280 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.452
Erosion: 1.0111 tons/year
Right Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 1.0111 tons/year
Extent of Erosion: Moderate
Notes:

Some erosion around left downstream roadway runoff drain.

Summary Information
Erosion is an area of concern for this site.

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