Road Stream Crossing Site BT_G012
Betsie River Watershed, Brigham Creek
E Duck Lake Rd
Green Lake Twp,
Grand Traverse County
Information collected by:
Site Location
GPS Coordinates: 44.62019
, -85.72618
T26N
R12W
Sec 26
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 0.3603 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: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 35 ft.
, Width 3.4 ft.
, Height 3.4 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 2.1 ft./sec.
Structure Outlet
Water Depth: 1.2 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 1.5 ft./sec.
*Water Velocities were measured 0.7 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: 0.3 ft.
Bankfull Width: 13.5 ft.
Wetted Width: 9.7 ft.
Water Velocity: 1.7 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 31 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 8.5 ft.
Slope: 1:1
Downstream
Fill Depth: 9 ft.
Slope: 1:2
Approaches
Left Approach
Length: 150 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.44
Erosion: 0.0676 tons/year
Right Approach
Length: 350 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.575
Erosion: 0.2062 tons/year
Erosion Information
Total Erosion at Crossing: 0.3603 tons/year
Extent of Erosion: Minor
Notes: Undercut bank.
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Downstream Streambank |
30 ft. |
2 ft. |
3 ft. |
yes |
Sandy Loam |
0.0864 |
Summary Information
Fish Passability 0.5