Road Stream Crossing Site BT_B059
Betsie River Watershed, Dair Creek
Dair Mill Rd
Weldon Twp,
Benzie County
Information collected by:
Site Location
GPS Coordinates: 44.55183
, -86.05429
T25N
R14W
Sec 19
Owned by Private
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: Open Bottom Arch
Inlet Type: Headwall
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 60 ft.
, Width 12 ft.
, Height 4.2 ft.
Structure Inlet
Water Depth: 2.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.2 ft./sec.
Structure Outlet
Water Depth: 1.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.8 ft./sec.
*Water Velocities were measured 1.7 ft. below Surface
(with Meter)
Additional Comments
Project coordinated by CRA.
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: 13 ft.
Wetted Width: 13 ft.
Water Velocity: 2.2 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 27 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 0.8 ft.
Slope: Vertical
Downstream
Fill Depth: 1.4 ft.
Slope: Vertical
Approaches
Left Approach
Length: 120 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.388
Erosion: 0.0416 tons/year
Right Approach
Length: 900 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.56
Erosion: 0.4499 tons/year
Erosion Information
Total Erosion at Crossing: 0.4914 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.