Road Stream Crossing Site Mu-057

Muskegon River Watershed, Hersey River
7 mile Rd
Lincoln Twp, Osceola County
Information collected by:
Site Location
GPS Coordinates: 43.91616 , -85.52379
T18N R10W Sec 29
Owned by Private
Structure is NOT Perched
Total Erosion: 0.0258 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: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Other
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Rock
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 34 ft. , Width 45 ft. , Height 8.3 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 3.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.7 ft./sec.
Structure Outlet
Water Depth: 6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.6 ft./sec.
*Water Velocities were measured 1 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 75 ft. , Width 57 ft. , Depth 20 ft.
Upstream Pond: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Riffle Information
Water Depth: 2.2 ft.
Bankfull Width: 40 ft.
Wetted Width: 35 ft.
Water Velocity: 1.3 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 32 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Approaches
Left Approach
Length: 200 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0106 tons/year
Right Approach
Length: 100 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0.0053 tons/year
Erosion Information
Total Erosion at Crossing: 0.0258 tons/year
Extent of Erosion: Minor
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Left Downstream Ditch
3 ft.
10 ft.
3 ft.
yes
Sand
0.0099
Summary Information
Erosion is an area of concern for this site.

Man-made dam causing downstream pooling, bad fish pass-ability.

A future visit to this site is recommended.

Dam removal.