Road Stream Crossing Site LTB-252
Little Traverse Bay Watershed, Tributary to South Branch - Spring Brook
Howard Rd
Chandler Twp,
Charlevoix County
Information collected by:
Site Location
GPS Coordinates: 45.2272677
, -84.81382439
Fish Passability 0
Perch Height: 0.83 ft.
Total Erosion: 0.4683 tons/year
Severity: Severe
Year Inventoried: 2014
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: Ellipse
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 30 ft.
, Width 1.67 ft.
, Height 1.33 ft.
Percentage Plugged:
Inlet: 0%
Outlet: 0%
In Pipe: 0%
Percentage Crushed:
Inlet: 0%
Outlet: 0%
In Pipe: 0%
Perch Height: 0.83 ft.
Structure Inlet
Water Depth: 0.25 ft.
Embedded Depth of Structure: 0.83 ft.
Water Velocity*: 0.6 ft./sec.
Structure Outlet
Water Depth: 0.167 ft.
Water Velocity*: 3.4 ft./sec.
*Water Velocities were measured 15 ft. below Surface
(with Meter)
Additional Comments
Old site ID: C-14.
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 4 ft.
, Width 3 ft.
, Depth 0.5 ft.
Upstream Pond: Length 6 ft.
, Width 5 ft.
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 5.2 ft.
Wetted Width: 3.5 ft.
Water Velocity: 0.3 ft./sec.
(Measured with Meter)
Dominant Substrate: sand/organics
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 17 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 2 ft.
Slope: 1:2
Downstream
Fill Depth: 2 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.2342 tons/year
Right Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.2342 tons/year
Erosion Information
Total Erosion at Crossing: 0.4683 tons/year
Summary Information
Fish Passability 0
A future visit to this site is recommended. Possibly because of stream bed drop at inlet of 10-12 inches. Flooding issue?