Road Stream Crossing Site BSAB_BS02
Big Sable River Watershed, Big Sable River
5 Mile Rd
Sauble Twp,
Lake County
Information collected by:
Site Location
GPS Coordinates: 44.05769
, -85.95124
T19N
R14W
Sec 11
Owned by Private
Fish Passability 0
Structure is NOT Perched
Total Erosion: 0.0548 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: 1
Structure Shape: Ellipse
Inlet Type: Mitered
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 60 ft.
, Width 11 ft.
, Height 7 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.2 ft./sec.
Structure Outlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 7.5 ft./sec.
*Water Velocities were measured 0.3 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 30 ft.
, Width 15 ft.
, Depth 3 ft.
Upstream Pond: Length 8 ft.
, Width 5 ft.
, Depth 2.2 ft.
Riffle Information
Water Depth: 0.5 ft.
Bankfull Width: 37.6 ft.
Wetted Width: 45.7 ft.
Water Velocity: 1.5 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Fair
Road Width at Culvert: 24 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 5 ft.
Slope: Vertical
Downstream
Fill Depth: 5.5 ft.
Slope: Vertical
Approaches
Left Approach
Length: 381 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0151 tons/year
Right Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0397 tons/year
Erosion Information
Total Erosion at Crossing: 0.0548 tons/year
Extent of Erosion: Minor
Notes: Minor erosion in the form of a scour pool due to the perched outlet
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site.
perched culvert and high velocities
A future visit to this site is recommended. to further assess the fish passibility
These non-native species were observerd at this site: Knapweed