Road Stream Crossing Site BT_B107A
Betsie River Watershed, Cold Creek
US-31
Benzonia Twp,
Benzie County
Information collected by:
Site Location
GPS Coordinates: 44.63232
, -86.09019
T26N
R15W
Sec 23
Owned by Private
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 1.4017 tons/year
Severity: Moderate
Year Inventoried: 2014
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Wingwall 30-70 Degree
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 85 ft.
, Width 6 ft.
, Height 3.3 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0.7 ft.
Water Velocity*: 0.3 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 0.5 ft./sec.
*Water Velocities were measured 0.3 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.6 ft.
Bankfull Width: 13 ft.
Wetted Width: 9 ft.
Water Velocity: 0.9 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
Federal Road
Road Condition: Good
Road Width at Culvert: 53 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 0.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.2 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.8
Erosion: 1.4017 tons/year
Erosion Information
Total Erosion at Crossing: 1.4017 tons/year
Summary Information
Fish Passability 0.9