Road Stream Crossing Site BT_B015
Betsie River Watershed, Unknown (Betsie tributary)
Long Rd
Colfax Twp,
Benzie County
Information collected by:
Site Location
GPS Coordinates: 44.56286
, -85.89822
T25N
R13W
Sec 17
Owned by Private
State
State
Total Erosion: 3.0712 tons/year
Severity: Moderate
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: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 16 ft.
, Width 2 ft.
, Height 2.6 ft.
Structure Inlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.1 ft./sec.
Structure Outlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured 0.6 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: 1 ft.
Bankfull Width: 3 ft.
Wetted Width: 2 ft.
Water Velocity: 0.1 ft./sec.
(Measured with Meter)
Dominant Substrate: Organics
Road Information
Gravel
Other Road
(Seasonal)
Road Condition: Fair
Road Width at Culvert: 14 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.3 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.8 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 2.1983 tons/year
Right Approach
Length: 460 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.492
Erosion: 0.8729 tons/year
Erosion Information
Total Erosion at Crossing: 3.0712 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.