Road Stream Crossing Site LTB-065
Little Traverse Bay Watershed, Unknown tributary
Beach Dr and Page Hill
Harbor Springs,
Emmet County
Information collected by:
Site Location
GPS Coordinates: 45.42204963
, -84.92008703
Fish Passability 0
Total Erosion: 0.0496 tons/year
Severity: Severe
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Left
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: Gravel
General Conditions: Fair
Structure Interior: corrugated
Structure is Rusted through
Dimensions of Structure: Length 51 ft.
, Width 1.8 ft.
, Height 1.8 ft.
Percentage Plugged:
Inlet: 1% to 25%
Outlet: 1% to 25%
In Pipe: 1% to 25%
Structure Inlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0.04 ft.
Water Velocity*: 0.95 ft./sec.
Structure Outlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0.25 ft.
Water Velocity*: 3.41 ft./sec.
*Water Velocities were measured 0.46 ft. below Surface
(with Meter)
Additional Comments
Old site ID: LTB-8.
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 15 ft.
, Width 10 ft.
, Depth 0.5 ft.
Upstream Pond: Length 30 ft.
, Width 15 ft.
, Depth 0.78 ft.
Riffle Information
Water Depth: 0.25 ft.
Bankfull Width: 9.167 ft.
Wetted Width: 7.33 ft.
Water Velocity: 2 ft./sec.
(Measured with Meter)
Dominant Substrate: Cobble
Road Information
Paved
County Road
Road Condition: Fair
Road Width at Culvert: 25 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4 ft.
Slope: More than 1:2
Downstream
Fill Depth: 4 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 150 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.4
Erosion: 0.0496 tons/year
Right Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 0.0496 tons/year
Extent of Erosion: Stabilized
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site.
high velocity at outlet.