Road Stream Crossing Site BEAR_BC036
Bear Creek Watershed, Greens Creek
Norconk Rd
Springdale Twp,
Manistee County
Information collected by:
Site Location
GPS Coordinates: 44.4504019236575
, -86.0606503486633
T24N
R14W
Sec 30
Owned by State
Structure is NOT Perched
Total Erosion: 2.1531 tons/year
Severity: Moderate
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: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 30 ft.
, Width 2 ft.
, Height 2 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.86 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.3 ft./sec.
Structure Outlet
Water Depth: 0.25 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.8 ft./sec.
*Water Velocities were measured 0.15 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 8 ft.
, Width 5 ft.
, Depth 1.54 ft.
Riffle Information
Water Depth: 0.16 ft.
Bankfull Width: 6.8 ft.
Wetted Width: 5.8 ft.
Water Velocity: 0.8 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 17 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 0.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 0.7 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 250 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.549
Erosion: 2.0449 tons/year
Right Approach
Length: 300 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.1082 tons/year
Erosion Information
Total Erosion at Crossing: 2.1531 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.