Road Stream Crossing Site GTBAY_BRD001

Boardman River Watershed, N Branch Boardman River
Kettle Lake Rd/Lynn St
Kalkaska Twp, Kalkaska County
Information collected by:
Site Location
GPS Coordinates: 44.730789 , -85.165087
T27N R7W Sec 16
Owned by Local Government
Fish Passability 0.9
Total Erosion: 0.0069 tons/year
Severity: Minor
Year Inventoried: 2020
Inlet
Inlet
Inlet
Outlet
Outlet
Outlet
Upstream Conditions
Upstream Conditions
Upstream Conditions
Downstream Conditions
Downstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 3
Structure Shape: Ellipse
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Fair
Multiple Culverts/Spans
Culvert/Span
Width
Length
Height
Material
1
5.2 ft.
45 ft.
3.6 ft.
Metal
2
5.5 ft.
45 ft.
3.7 ft.
Metal
3
5.4 ft.
45 ft.
3.6 ft.
Metal
Structure Interior: corrugated
Dimensions of Structure: Length 45 ft. , Width 5.2 ft. , Height 3.7 ft.
Structure Inlet
Water Depth: 1.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.5 ft./sec.
Structure Outlet
Water Depth: 1.7 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0.2 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 1.5 ft.
Bankfull Width: 150 ft.
Wetted Width: 45 ft.
Water Velocity: 0.4 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved County Road
Road Condition: Poor
Road Width at Culvert: 21 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2 ft.
Slope: 1:2
Downstream
Fill Depth: 2 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 100 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0.0035 tons/year
Right Approach
Length: 100 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0.0035 tons/year
Erosion Information
Total Erosion at Crossing: 0.0069 tons/year
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Upstream Embankment
3 ft.
3 ft.
3 ft.
yes
Gravelly Loam
Left Upstream Embankment
2 ft.
3 ft.
1 ft.
yes
Gravelly Loam
Right Downstream Embankment
6 ft.
2 ft.
1 ft.
yes
Gravelly Loam
Left Downstream Embankment
2 ft.
3 ft.
1 ft.
yes
Gravelly Loam
Summary Information
Fish Passability 0.9
These non-native species were observerd at this site: Spotted Knappweed