Road Stream Crossing Site LIN_CRA049

Lincoln River Watershed, Lincoln River
N Jebavy Rd
Pere Marquette Twp, Mason County
Information collected by:
Site Location
GPS Coordinates: 43.982042 , -86.41886
T18N R18W Sec 1
Owned by Local Government
Total Erosion: 0.562 tons/year
Severity: Minor
Year Inventoried: 2019
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Number of Structures: 6
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Other
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: Good
Multiple Culverts/Spans
Culvert/Span
Width
Length
Height
Material
1
34 ft.
80 ft.
Concrete
3
34 ft.
80 ft.
Concrete
6
34 ft.
80 ft.
Concrete
Structure Interior: smooth
Dimensions of Structure: Length 480 ft. , Width 34 ft.
Additional Comments
there were six spans of the bridge overt the deep and unmeasurable free flowing river
Stream Information
Stream Flow: Less than Bankfull
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 34 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: 500 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.5
Erosion: 0.281 tons/year
Right Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.5
Erosion: 0.281 tons/year
Erosion Information
Total Erosion at Crossing: 0.562 tons/year
Summary Information
These non-native species were observerd at this site: Autumn Olive and Phragmites