Road Stream Crossing Site BSAB_BS10
Big Sable River Watershed, Twin Creek
Hamilton Rd
Sauble Twp,
Lake County
Information collected by:
Site Location
GPS Coordinates: 44.01627
, -86.00028
T19N
R14W
Sec 28
Owned by Private
Federal
Federal
Fish Passability 0
Perch Height: 0.6 ft.
Total Erosion: 0.5108 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: Pipe Arch
Inlet Type: Projecting
Outlet Type: Cascade over Riprap
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Multiple Culverts/Spans | ||||
Culvert/Span | Width | Length | Height | Material |
1 |
3 ft. |
60 ft. |
1.9 ft. |
Metal |
2 |
3 ft. |
60 ft. |
1.9 ft. |
Metal |
Structure Interior: corrugated
Dimensions of Structure: Length 60 ft.
, Width 3 ft.
, Height 1.9 ft.
Perch Height: 0.6 ft.
Structure Inlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2 ft./sec.
Structure Outlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 4.7 ft./sec.
*Water Velocities were measured 0.18 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 25 ft.
, Width 15 ft.
, Depth 2.7 ft.
Riffle Information
Water Depth: 0.77 ft.
Bankfull Width: 10.6 ft.
Wetted Width: 9.2 ft.
Water Velocity: 1.5 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 26 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4.5 ft.
Slope: 1:1
Downstream
Fill Depth: 3.6 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 486 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0209 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.4899 tons/year
Erosion Information
Total Erosion at Crossing: 0.5108 tons/year
Extent of Erosion: Minor
Notes: Scour pool erosion due to perched culvert
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site.
perched outlet and high outlet velocity
A future visit to this site is recommended. to assess actual fish passage limitations
These non-native species were observerd at this site: Knapweed