Road Stream Crossing Site EBIO001
Au Gres River Watershed, Tributary of Long Lake
Kokosing Rd
Plainfield Twp,
Iosco County
Information collected by:
Site Location
GPS Coordinates: 44.42538
, -83.85906
T24N
R5E
Sec 32
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 0.4486 tons/year
Severity: Moderate
Year Inventoried: 2014
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: Pipe Arch
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: New
Structure Interior: corrugated
Dimensions of Structure: Length 63.5 ft.
, Width 4.5 ft.
, Height 3.3 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.1 ft./sec.
Structure Outlet
Water Depth: 1.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.5 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface
(with Meter)
Stream Information
Stream Flow: More than Bankfull
Scour Pool: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0 ft.
Bankfull Width: 0 ft.
Wetted Width: 0 ft.
Water Velocity: 0 ft./sec.
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 32 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1 ft.
Slope: More than 1:2
Downstream
Fill Depth: 2.6 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 63.5 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.346
Erosion: 0.0233 tons/year
Right Approach
Length: 735 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.54
Erosion: 0.4201 tons/year
Erosion Information
Total Erosion at Crossing: 0.4486 tons/year
Extent of Erosion: Minor
Notes: Erosion likely due to foot traffic (e.g., anglers). Erosion control fabric is exposed at erosion site and over top of culvert at both outlet and inlet.
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Left Downstream Embankment |
16 ft. |
12 ft. |
0.3 ft. |
yes |
Sand |
0.0053 |
Summary Information
Fish Passability 0.5
These non-native species were observerd at this site: Spotted Knapweed