Road Stream Crossing Site LTB-095
Little Traverse Bay Watershed, Bear River
Bridge Rd
Petoskey,
Emmet County
Information collected by:
Site Location
GPS Coordinates: 45.36844025
, -84.96553854
Fish Passability 0.5
Total Erosion: 0.8904 tons/year
Severity: Moderate
Year Inventoried: 2014
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Dimensions of Structure: Length 37 ft.
, Width 150 ft.
, Height 60 ft.
Structure Inlet
Water Depth: 1.8 ft.
Water Velocity*: 2 ft./sec.
Structure Outlet
Water Depth: 1.8 ft.
Water Velocity*: 2 ft./sec.
*Water Velocities were measured 0.9 ft. below Surface
(with Meter)
Additional Comments
Old site ID: E-7.
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 1.5 ft.
Bankfull Width: 20 ft.
Wetted Width: 18.5 ft.
Water Velocity: 3 ft./sec.
(Measured with Meter)
Dominant Substrate: Cobble
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 37 ft.
Location of Low Point: At Stream
Embankments
Upstream
Fill Depth: 20 ft.
Slope: 1:1.5
Downstream
Fill Depth: 25 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 600 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.68
Erosion: 0.499 tons/year
Right Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.64
Erosion: 0.3914 tons/year
Erosion Information
Total Erosion at Crossing: 0.8904 tons/year
Extent of Erosion: Stabilized
Summary Information
Fish Passability 0.5