Road Stream Crossing Site BT_B033

Betsie River Watershed, Red Creek
Haze Rd
Weldon Twp, Benzie County
Information collected by:
GPS Coordinates: 44.52831 , -85.95883
T25N R14W Sec 26
Owned by State
Total Erosion: 2.3921 tons/year
Severity: Severe
Year Inventoried: 2014
Site Location
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Erosion
Erosion
Crossing Information
Type of Crossing: culvert(s)
Number of Culverts: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 34 ft. , Width 2.6 ft. , Height 2.6 ft.
Percentage Plugged: Inlet: 76% to 100% Outlet: 0% In Pipe: 0%
Percentage Crushed: Inlet: 0% Outlet: 1% to 25% In Pipe: 0%
Structure Inlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.7 ft./sec.
Structure Outlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.7 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface (with Meter)
Additional Comments

Site is up for restoration/replacement with help of CRA.

Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 20 ft. , Width 15 ft. , Depth 4 ft.
Upstream Pond: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Riffle Information
Water Depth: 0.5 ft.
Bankfull Width: 13.5 ft.
Wetted Width: 11 ft.
Water Velocity: 1.4 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 16 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 5.6 ft.
Slope: More than 1:2
Downstream
Fill Depth: 6.4 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 350 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.465
Erosion: 2.2601 tons/year
Erosion Information
Total Erosion at Crossing: 2.3921 tons/year
Extent of Erosion: Minor
Erosion is occurring and corrective actions can be installed to address the problem.
Notes:

Addition of a spillway at lowest point on east side would possibly stop erosion.

Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Left Approach
20 ft.
5 ft.
6.6 ft.
no
Gravelly Loam
0.132
Summary Information
Erosion is an area of concern for this site.
A future visit to this site is recommended.

Erosion monitoring, and to clean up blockages on inlet/upstream side.