Road Stream Crossing Site BT_G009

Betsie River Watershed, Brigham Creek
E Duck Lake Rd
Green Lake Twp, Grand Traverse County
Information collected by:
GPS Coordinates: 44.61418 , -85.70948
T26N R12W Sec 25
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 1.1306 tons/year
Severity: Moderate
Year Inventoried: 2014
Site Location
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Other
Crossing Information
Type of Crossing: culvert(s)
Number of Culverts: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: None
General Conditions: Poor
Structure Interior: smooth
Dimensions of Structure: Length 76 ft. , Width 2 ft. , Height 2 ft.
Percentage Crushed: Inlet: 0% Outlet: 0% In Pipe: 1% to 25%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.5 ft./sec.
Structure Outlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.5 ft./sec.
*Water Velocities were measured 0.4 ft. below Surface (with Float Test)
Stream Information
Stream Flow: 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: 0.8 ft.
Bankfull Width: 3.2 ft.
Wetted Width: 3 ft.
Water Velocity: 1.5 ft./sec. (Measured with Float Test)
Dominant Substrate: Sand
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 30 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 7 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.5653 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.5653 tons/year
Erosion Information
Total Erosion at Crossing: 1.1306 tons/year
Summary Information
Fish Passability 0.5
A future visit to this site is recommended. North end of culvert split, mid section misaligned concrete.