Road Stream Crossing Site GTBAY_S405
Boardman River Watershed, N Branch Boardman River
County Rd 612/Nash Rd
Kalkaska Twp,
Kalkaska County
Information collected by:
Site Location
GPS Coordinates: 44.742766
, -85.123025
T27N
R7W
Sec 11
Owned by State
Private
Private
Fish Passability 0.9
Total Erosion: 0.0202 tons/year
Severity: Minor
Year Inventoried: 2020
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 2
Structure Shape: Square/Rectangle
Inlet Type: Wingwall 30-70 Degree
Outlet Type: At Stream Grade
Structure Material: Wood
Structure Substrate: Sand
General Conditions: Fair
Multiple Culverts/Spans | ||||
Culvert/Span | Width | Length | Height | Material |
2 |
7.5 ft. |
41 ft. |
4.5 ft. |
Concrete |
Dimensions of Structure: Length 41 ft.
, Width 7.5 ft.
, Height 4.5 ft.
Structure Inlet
Water Depth: 1.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.5 ft./sec.
Structure Outlet
Water Depth: 1.9 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0.3 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 1.1 ft.
Bankfull Width: 22 ft.
Wetted Width: 20 ft.
Water Velocity: 0.6 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 30.5 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.5 ft.
Slope: 1:2
Downstream
Fill Depth: 1.5 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 200 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0.0101 tons/year
Right Approach
Length: 200 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0.0101 tons/year
Erosion Information
Total Erosion at Crossing: 0.0202 tons/year
Summary Information
Fish Passability 0.9