Road Stream Crossing Site BT_G008A

Betsie River Watershed, Mason Creek
Co. 633
Green Lake Twp, Grand Traverse County
Information collected by:
GPS Coordinates: 44.62309 , -85.69657
T26N R12W Sec 25
Owned by Private
Fish Passability 0
Perch Height: 0.6 ft.
Total Erosion: 2.914 tons/year
Severity: Severe
Year Inventoried: 2011
Site Location
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Culverts: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 83.8 ft. , Width 1.6 ft. , Height 1.6 ft.
Perch Height: 0.6 ft.
Structure Inlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 3.2 ft./sec.
Structure Outlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 5.7 ft./sec.
*Water Velocities were measured 0.4 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 8.5 ft. , Width 9.3 ft. , Depth 1.3 ft.
Upstream Pond: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 12.3 ft.
Wetted Width: 0.7 ft.
Water Velocity: 2.5 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 43 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 6.8 ft.
Slope: More than 1:2
Downstream
Fill Depth: 6.8 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 2.05
Erosion: 2.914 tons/year
Right Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 2.914 tons/year
Summary Information
Fish Passability 0