Road Stream Crossing Site EBIO058
Au Gres River Watershed, Graham Creek
Curtis Rd
Plainfield Twp,
Iosco County
Information collected by:
Site Location
GPS Coordinates: 44.36599
, -83.65787
T23N
R6E
Sec 24 & 25
Owned by Federal
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 3.7844 tons/year
Severity: Severe
Year Inventoried: 2014
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Trash Rack
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 46 ft.
, Width 3.1 ft.
, Height 3.1 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0.4 ft.
Water Velocity*: 2.8 ft./sec.
Structure Outlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.9 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface
(with Meter)
Additional Comments
USFS land
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 27.4 ft.
, Width 19.7 ft.
, Depth 3.3 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.6 ft.
Bankfull Width: 19.7 ft.
Wetted Width: 0.5 ft.
Water Velocity: 0.5 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Sand
Federal Road
Road Condition: Good
Road Width at Culvert: 17 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.9 ft.
Slope: More than 1:2
Downstream
Fill Depth: 3 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 2.6694 tons/year
Right Approach
Length: 480 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.496
Erosion: 1.115 tons/year
Erosion Information
Total Erosion at Crossing: 3.7844 tons/year
Notes: None.
Summary Information
Fish Passability 0.5