Road Stream Crossing Site MAN_WE_113
Big Manistee River Watershed, Soper Creek
12 Rd
Greenwood Twp,
Wexford County
Information collected by:
Site Location
GPS Coordinates: 44.44298
, -85.57206
T24N
R10W
Sec 30
Owned by State
Structure is NOT Perched
Total Erosion: 4.3601 tons/year
Severity: Restored
Year Inventoried: 2014
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: Wingwall 30-70 Degree
Outlet Type: At Stream Grade
Structure Material: Wood
Structure Substrate: Rock
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 33 ft.
, Width 21 ft.
, Height 11.1 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3 ft./sec.
Structure Outlet
Water Depth: 1.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.8 ft./sec.
*Water Velocities were measured 0.8 ft. below Surface
(with Meter)
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: 1.7 ft.
Bankfull Width: 8 ft.
Wetted Width: 6 ft.
Water Velocity: 2.1 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
(Seasonal)
Road Condition: Good
Road Width at Culvert: 29 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: 570 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.668
Erosion: 3.0419 tons/year
Right Approach
Length: 300 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.55
Erosion: 1.3182 tons/year
Erosion Information
Total Erosion at Crossing: 4.3601 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.