Road Stream Crossing Site BEAR_BC009
Bear Creek Watershed, First Creek
Erwin Rd
Cleon Twp,
Manistee County
Information collected by:
Site Location
GPS Coordinates: 44.47173
, -85.89893
T24N
R13W
Sec 17
Owned by Private
Structure is NOT Perched
Total Erosion: 6.281 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: Pipe Arch
Inlet Type: Mitered
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 50 ft.
, Width 7 ft.
, Height 4.5 ft.
Percentage Crushed:
Inlet: 0%
Outlet: 0%
In Pipe: 1% to 25%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.55 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.3 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.9 ft./sec.
*Water Velocities were measured 0.24 ft. below Surface
(with Meter)
Additional Comments
Two 4x6 posts are being utilized for tube support about 10ft from outlet.
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.55 ft.
Bankfull Width: 13.4 ft.
Wetted Width: 12.6 ft.
Water Velocity: 1.1 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 20 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.2 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 3.1405 tons/year
Right Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 3.1405 tons/year
Erosion Information
Total Erosion at Crossing: 6.281 tons/year
Extent of Erosion: Minor
Summary Information
Fish Passage is an area of concern for this site.
Structural integrity is impaired, possible make a weight limit for road crossing.
A future visit to this site is recommended.
To estimate the culverts remaining life span.