Road Stream Crossing Site GTBAY_S064
Boardman River Watershed, Robbin's Creek
Dracka Rd
Garfield Twp,
Grand Traverse County
Information collected by:
Site Location
GPS Coordinates: 44.69996
, -85.63598
T27N
R11W
Sec 34
Owned by Private
Fish Passability 0.5
Total Erosion: 0.4959 tons/year
Severity: Moderate
Year Inventoried: 2020
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Structure Shape: Ellipse
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 62 ft.
, Width 4.6 ft.
, Height 3.2 ft.
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 2.2 ft./sec.
Structure Outlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 0.6 ft./sec.
*Water Velocities were measured 0.2 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.6 ft.
Bankfull Width: 21 ft.
Wetted Width: 5.6 ft.
Water Velocity: 0.5 ft./sec.
(Measured with Meter)
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: Ditch
Embankments
Upstream
Fill Depth: 3.2 ft.
Slope: More than 1:2
Downstream
Fill Depth: 3.6 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.5
Erosion: 0.2479 tons/year
Right Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.5
Erosion: 0.2479 tons/year
Erosion Information
Total Erosion at Crossing: 0.4959 tons/year
Summary Information
Fish Passability 0.5
These non-native species were observerd at this site: Autumn Olive, Spotted Knapweed