Road Stream Crossing Site BEAR_BC080
Bear Creek Watershed, Cedar Creek
Creamery Rd
Maple Grove Twp,
Manistee County
Information collected by:
Site Location
GPS Coordinates: 44.37582
, -85.97265
T23N
R14W
Sec 23
Owned by Private
Structure is NOT Perched
Total Erosion: 2.672 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: 2
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Multiple Culverts/Spans | ||||
Culvert/Span | Width | Length | Height | Material |
1 |
4 ft. |
30 ft. |
4 ft. |
Metal |
2 |
4 ft. |
30 ft. |
4 ft. |
Metal |
Structure Interior: corrugated
Dimensions of Structure: Length 30 ft.
, Width 4 ft.
, Height 4 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.8 ft./sec.
Structure Outlet
Water Depth: 0.35 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 4.8 ft./sec.
*Water Velocities were measured 0.21 ft. below Surface
(with Meter)
Additional Comments
Culvert #2 was used for structure data. Culvert #1 is perched by 0.3 feet. The inlets of both culverts are 0.2 feet above stream grade.
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 25 ft.
, Width 25 ft.
, Depth 3 ft.
Riffle Information
Water Depth: 0.6 ft.
Bankfull Width: 16.5 ft.
Wetted Width: 13 ft.
Water Velocity: 0.9 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 15 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.1 ft.
Slope: Vertical
Downstream
Fill Depth: 0.2 ft.
Slope: Vertical
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.2066 tons/year
Right Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 2.3554 tons/year
Erosion Information
Total Erosion at Crossing: 2.672 tons/year
Extent of Erosion: Moderate
Notes:
Moderate erosion due to steep vertical embankments that are lacking stabilizing vegetation and receiving direct road runoff.
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Left Upstream Embankment |
7 ft. |
4 ft. |
1 ft. |
yes |
Sandy Loam |
0.047 |
Left Downstream Embankment |
6 ft. |
4 ft. |
1.5 ft. |
yes |
Gravelly Loam |
0.063 |
Summary Information
Erosion is an area of concern for this site.
As well as fish passage.