Road Stream Crossing Site BEAR_BC057
Bear Creek Watershed, Tributary of Big Bear Creek
McMartin Rd
Maple Grove Twp,
Manistee County
Information collected by:
Site Location
GPS Coordinates: 44.36322
, -86.04031
T23N
R14W
Sec 29
Owned by Private
Perch Height: 0.1 ft.
Total Erosion: 0.6336 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: 1
Structure Shape: Ellipse
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 40 ft.
, Width 3.6 ft.
, Height 2.8 ft.
Perch Height: 0.1 ft.
Structure Inlet
Water Depth: 0.32 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.05 ft./sec.
Structure Outlet
Water Depth: 0.05 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.3 ft./sec.
*Water Velocities were measured at the Surface
(with Meter)
Additional Comments
1) The right approach is immediately gravel for 370 ft then changes to pavement 2) Upstream and downstream is ditched.
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.1 ft.
Bankfull Width: 6.6 ft.
Wetted Width: 4.6 ft.
Water Velocity: 0.05 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 23 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.4 ft.
Slope: More than 1:2
Downstream
Fill Depth: 0.8 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 100 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.3168 tons/year
Right Approach
Length: 100 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.3168 tons/year
Erosion Information
Total Erosion at Crossing: 0.6336 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.
These non-native species were observerd at this site: Knapweed