Road Stream Crossing Site LM006

Manistee River Watershed, Little Manistee River Tributary
Hawkins Rd
Ellsworth Twp, Lake County
Information collected by:
Site Location
GPS Coordinates: 44.024992 , -85.602634
T19N R11W Sec 22
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 2.4938 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: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: New
Structure Interior: corrugated
Dimensions of Structure: Length 40 ft. , Width 1.5 ft. , Height 1.5 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.1 ft./sec.
Structure Outlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0.1 ft./sec.
*Water Velocities were measured at the Surface (with Float Test)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.1 ft.
Bankfull Width: 5.2 ft.
Wetted Width: 2 ft.
Water Velocity: 0.1 ft./sec. (Measured with Float Test)
Dominant Substrate: Sand
Road Information
Gravel County Road
Road Condition: Fair
Road Width at Culvert: 30 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1 ft.
Slope: More than 1:2
Downstream
Slope: More than 1:2
Approaches
Left Approach
Length: 50 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0.0207 tons/year
Right Approach
Length: 475 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.63
Erosion: 2.4731 tons/year
Erosion Information
Total Erosion at Crossing: 2.4938 tons/year
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Left Upstream Embankment
100 ft.
30 ft.
0.1 ft.
yes
Sand
Left Downstream Embankment
100 ft.
30 ft.
0.1 ft.
yes
Sand
Summary Information
Fish Passability 0.5
Fish Passage is an area of concern for this site. and Erosion. There is no flow
These non-native species were observerd at this site: Autumn Olive, Reed Canary Grass