Road Stream Crossing Site BEAR_BC068
Bear Creek Watershed, Little Beaver Creek
Unimproved Road west of McClellen
Maple Grove Twp,
Manistee County
Information collected by:
Site Location
GPS Coordinates: 44.3512889909299
, -86.0741901397705
T23N
R14W
Sec 30
Owned by Private
Structure is NOT Perched
Total Erosion: 0.2204 tons/year
Severity: Moderate
Year Inventoried: 2011
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: Sand
General Conditions: Fair
Structure Interior: corrugated
Structure is Rusted through
Dimensions of Structure: Length 45 ft.
, Width 4 ft.
, Height 4 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.81 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.8 ft./sec.
Structure Outlet
Water Depth: 1.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.7 ft./sec.
*Water Velocities were measured 0.49 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 10 ft.
, Width 10 ft.
, Depth 2.05 ft.
Riffle Information
Water Depth: 0.46 ft.
Bankfull Width: 6.2 ft.
Wetted Width: 5.6 ft.
Water Velocity: 1.1 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 8 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.8 ft.
Slope: Vertical
Downstream
Fill Depth: 3.2 ft.
Slope: 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.1102 tons/year
Right Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.1102 tons/year
Erosion Information
Total Erosion at Crossing: 0.2204 tons/year
Extent of Erosion: Minor
Notes:
Minor embankment erosion due to lacking vegeatation
Summary Information
Erosion is an area of concern for this site.