Road Stream Crossing Site LTB-064
Little Traverse Bay Watershed, Unknown tributary
small road just off of Fern
Harbor Springs,
Emmet County
Information collected by:
Site Location
GPS Coordinates: 45.42693989
, -84.95010735
Fish Passability 0
Perch Height: 0.5 ft.
Total Erosion: 0.0579 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: Round
Inlet Type: Projecting
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Poor
Structure Interior: corrugated
Dimensions of Structure: Length 21 ft.
, Width 1.3 ft.
, Height 1.3 ft.
Percentage Plugged:
Inlet: 51% to 75%
Outlet: 26% to 50%
In Pipe: 26% to 50%
Perch Height: 0.5 ft.
Structure Inlet
Water Depth: 1 ft.
Embedded Depth of Structure: 4.42 ft.
Water Velocity*: 0.93 ft./sec.
Structure Outlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.6 ft./sec.
*Water Velocities were measured 0.6 ft. below Surface
(with Meter)
Additional Comments
Old site ID: UT-4.
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 10 ft.
, Width 15 ft.
, Depth 0.5 ft.
Riffle Information
Water Depth: 0.75 ft.
Bankfull Width: 18.67 ft.
Wetted Width: 17.083 ft.
Water Velocity: 0.5 ft./sec.
(Measured with Meter)
Dominant Substrate: Cobble
Road Information
Gravel
Town Road
Road Condition: Fair
Road Width at Culvert: 14 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 0.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 6 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: None
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 30 ft.
Slope: 6% to 10%
Vegetation: None
LS Factor: 0.5
Erosion: 0.0579 tons/year
Erosion Information
Total Erosion at Crossing: 0.0579 tons/year
Extent of Erosion: Stabilized
Summary Information
Fish Passability 0
A future visit to this site is recommended. very plugged and leads right to LTBay!