Road Stream Crossing Site LIN_CRA046
Lincoln River Watershed, Lincoln River Tributary
W Hansen Rd
Amber Twp,
Mason County
Information collected by:
Site Location
GPS Coordinates: 43.978017
, -86.386998
T18N
R17W
Sec 7
Owned by Private
Fish Passability 0.5
Total Erosion: 1.4593 tons/year
Severity: Moderate
Year Inventoried: 2019
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Apron
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: None
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 120 ft.
, Width 3.9 ft.
, Height 3.9 ft.
Structure Inlet
Water Depth: 1.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.8 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0.4 ft./sec.
*Water Velocities were measured 0.4 ft. below Surface
(with Meter)
Additional Comments
a dip is visable within structure from outlet
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 25 ft.
, Width 20 ft.
, Depth 5 ft.
Riffle Information
Water Depth: 1 ft.
Bankfull Width: 10 ft.
Wetted Width: 5 ft.
Water Velocity: 0.5 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 27 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 20 ft.
Slope: More than 1:2
Downstream
Fill Depth: 20 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 500 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.635
Erosion: 0.7297 tons/year
Right Approach
Length: 500 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.635
Erosion: 0.7297 tons/year
Erosion Information
Total Erosion at Crossing: 1.4593 tons/year
Extent of Erosion: Stabilized
Notes: Roads have slightly elevated curb that causes runoff to stay at roadway until dip (approaches buffered by embankment)
Summary Information
Fish Passability 0.5
These non-native species were observerd at this site: autumn Olive, Thistle, Phragmites, Garlic Mustard