Road Stream Crossing Site LM009

Manistee River Watershed, Little Manistee River
Frank Smith Rd
Ellsworth Twp, Lake County
Information collected by:
Site Location
GPS Coordinates: 44.003774 , -85.652314
T19N R11W Sec 29
Owned by Private
Fish Passability 0
Perch Height: 0.6 ft.
Total Erosion: 2.7548 tons/year
Severity: Severe
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: 2
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Poor
Multiple Culverts/Spans
Culvert/Span
Width
Length
Height
Material
1
2.6 ft.
40.3 ft.
2.6 ft.
Metal
2
2.6 ft.
40.6 ft.
2.6 ft.
Metal
Structure Interior: corrugated
Dimensions of Structure: Length 40.3 ft. , Width 2.6 ft. , Height 2.6 ft.
Perch Height: 0.6 ft.
Structure Inlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.5 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 4.9 ft./sec.
*Water Velocities were measured 0.3 ft. below Surface (with Meter)
Additional Comments
structure values are of culvert 1
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 20 ft. , Width 15 ft. , Depth 2 ft.
Riffle Information
Water Depth: 0.5 ft.
Bankfull Width: 7 ft.
Wetted Width: 6.2 ft.
Water Velocity: 1.2 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 20 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2 ft.
Slope: 1:1.5
Downstream
Fill Depth: 3 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.5
Erosion: 1.3774 tons/year
Right Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.5
Erosion: 1.3774 tons/year
Erosion Information
Total Erosion at Crossing: 2.7548 tons/year
Summary Information
Fish Passability 0
Erosion is an area of concern for this site. Perched culverts