Road Stream Crossing Site BEAR_BC089
Bear Creek Watershed, Cedar Creek
Old Railroad North off Johnson Rd
Maple Grove Twp,
Manistee County
Information collected by:
Site Location
GPS Coordinates: 44.35251
, -86.0155
T23N
R14W
Sec 33
Owned by Private
Structure is NOT Perched
Total Erosion: 0.2204 tons/year
Severity: Minor
Year Inventoried: 2011
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Other
Outlet Type: At Stream Grade
Structure Material: Wood
Structure Substrate: Sand
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 12 ft.
, Width 24 ft.
, Height 8 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.07 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.9 ft./sec.
Structure Outlet
Water Depth: 0.91 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.3 ft./sec.
*Water Velocities were measured 0.55 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 24.7 ft.
Wetted Width: 19.9 ft.
Water Velocity: 1.5 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
(Seasonal)
Road Condition: Fair
Road Width at Culvert: 8 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Fill Depth: 0 ft.
Slope: 1:1.5
Fill Depth: 0 ft.
Slope: 1:1.5
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: Moderate
Summary Information
Erosion is an area of concern for this site.