Road Stream Crossing Site BEAR_BC021
Bear Creek Watershed, Tributary of Third Creek
Valencourt Rd
Cleon Twp,
Manistee County
Information collected by:
Site Location
GPS Coordinates: 44.44031
, -85.92178
T24N
R13W
Sec 30
Owned by Private
Perch Height: 0.3 ft.
Total Erosion: 0.181 tons/year
Severity: Severe
Year Inventoried: 2011
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: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Multiple Culverts/Spans | ||||
Culvert/Span | Width | Length | Height | Material |
1 |
2 ft. |
20 ft. |
2 ft. |
Metal |
2 |
1.5 ft. |
20 ft. |
1.5 ft. |
Metal |
Structure Interior: corrugated
Structure is Rusted through
Dimensions of Structure: Length 20 ft.
, Width 2 ft.
, Height 2 ft.
Perch Height: 0.3 ft.
Structure Inlet
Water Depth: 0.85 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.9 ft./sec.
Structure Outlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.6 ft./sec.
*Water Velocities were measured 0.3 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 12 ft.
, Width 12 ft.
, Depth 2 ft.
Riffle Information
Water Depth: 0.45 ft.
Bankfull Width: 14.2 ft.
Wetted Width: 12.8 ft.
Water Velocity: 1.2 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Native Surface
County Road
(Seasonal)
Road Condition: Poor
Road Width at Culvert: 10 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.2 ft.
Slope: Vertical
Downstream
Fill Depth: 2.3 ft.
Slope: Vertical
Approaches
Left Approach
Length: 380 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0917 tons/year
Right Approach
Length: 210 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0893 tons/year
Erosion Information
Total Erosion at Crossing: 0.181 tons/year
Extent of Erosion: Moderate
Notes:
Severe washing of road shoulder/embankment on inlet side.
Summary Information
Erosion is an area of concern for this site.