Road Stream Crossing Site LM063

Manistee River Watershed, Stronach Creek
11 1/2 Mile Rd
Elk Twp, Lake County
Information collected by:
Site Location
GPS Coordinates: 44.155143 , -85.974513
T20N R14W Sec 3
Fish Passability 0
Total Erosion: 1.4446 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: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 60 ft. , Width 3 ft. , Height 3 ft.
Percentage Plugged: Inlet: 1% to 25%
Structure Inlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 5.3 ft./sec.
Structure Outlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.9 ft./sec.
*Water Velocities were measured 1 ft. below Surface (with Meter)
Additional Comments
Additional notes due to extreme flooding; woody debries in inlet
Stream Information
Stream Flow: Bankfull
Scour Pool: Length 20 ft. , Width 18 ft. , Depth 3.3 ft.
Riffle Information
Water Depth: 0.7 ft.
Bankfull Width: 26.5 ft.
Wetted Width: 26.5 ft.
Water Velocity: 0.7 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel County Road
Road Condition: Fair
Road Width at Culvert: 19 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 10 ft.
Slope: 1:1.5
Downstream
Fill Depth: 10 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 300 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.46
Erosion: 0.7223 tons/year
Right Approach
Length: 300 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.46
Erosion: 0.7223 tons/year
Erosion Information
Total Erosion at Crossing: 1.4446 tons/year
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site. High velocity
These non-native species were observerd at this site: Autumn Olive

Close this Page

Print