Road Stream Crossing Site EBIO089
Au Gres River Watershed, Tributary of East Branch Au Gres River
Legget Rd
Sherman Twp,
Iosco County
Information collected by:
Site Location
GPS Coordinates: 44.22037
, -83.68475
T21N
R6E
Sec 10 & 15
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 0.1928 tons/year
Severity: Moderate
Year Inventoried: 2014
Site ID
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: Round
Inlet Type: Projecting
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Poor
Structure Interior: corrugated
Structure is Rusted through
Dimensions of Structure: Length 31 ft.
, Width 2 ft.
, Height 2 ft.
Percentage Crushed:
Inlet: 51% to 75%
Outlet: 1% to 25%
In Pipe: 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.1 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.2 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 8.3 ft.
, Width 9.2 ft.
, Depth 1.5 ft.
Upstream Pond: Length 5.5 ft.
, Width 8 ft.
, Depth 0.4 ft.
Riffle Information
Water Depth: 0.1 ft.
Bankfull Width: 10 ft.
Wetted Width: 2.7 ft.
Water Velocity: 1.2 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 14 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 0.8 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.2 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 0 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.26
Erosion: 0 tons/year
Right Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.1928 tons/year
Erosion Information
Total Erosion at Crossing: 0.1928 tons/year
Notes: None.
Summary Information
Fish Passability 0.5
A future visit to this site is recommended. Worth keeping an eye on since culvert is in poor shape.