Road Stream Crossing Site MAN_WE_061
Big Manistee River Watershed, Unknown (tributary to Manistee River)
12 Rd
Hanover Twp,
Wexford County
Information collected by:
Site Location
GPS Coordinates: 44.43904
, -85.68758
T24N
R11W
Sec 30
Owned by State
Fish Passability 0
Perch Height: 2.3 ft.
Total Erosion: 0.577 tons/year
Severity: Severe
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Erosion
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 30 ft.
, Width 1.4 ft.
, Height 1.4 ft.
Percentage Plugged:
Inlet: 76% to 100%
Outlet: 0%
In Pipe: 0%
Perch Height: 2.3 ft.
Structure Inlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.2 ft./sec.
Structure Outlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 5 ft./sec.
*Water Velocities were measured 0.3 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 8 ft.
, Width 9 ft.
, Depth 0.9 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 7 ft.
Wetted Width: 3.6 ft.
Water Velocity: 0.8 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
(Seasonal)
Road Condition: Fair
Road Width at Culvert: 13 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 6 ft.
Slope: 1:1.5
Downstream
Fill Depth: 9 ft.
Slope: Vertical
Approaches
Left Approach
Length: 190 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.424
Erosion: 0.2885 tons/year
Right Approach
Length: 190 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.424
Erosion: 0.2885 tons/year
Erosion Information
Total Erosion at Crossing: 0.577 tons/year
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Downstream Embankment |
16 ft. |
1.5 ft. |
6 ft. |
yes |
Loam |
|
Summary Information
Fish Passability 0
A future visit to this site is recommended. Yes, road washout danger.