Road Stream Crossing Site EBIO074
Au Gres River Watershed, Saddler Creek
Miller Rd
Grant Twp,
Iosco County
Information collected by:
Site Location
GPS Coordinates: 44.2933
, -83.64761
T22N
R6E
Sec 13 & 24
Owned by Private
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 0.9421 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: Headwall
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 16 ft.
, Width 4 ft.
, Height 4 ft.
Percentage Plugged:
Inlet: 1% to 25%
Outlet: 0%
In Pipe: 0%
Percentage Crushed:
Inlet: 0%
Outlet: 1% to 25%
In Pipe: 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.9 ft./sec.
Structure Outlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 1.4 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 0 ft.
, Width 0 ft.
, Depth 0 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 9.5 ft.
Wetted Width: 4.2 ft.
Water Velocity: 0.9 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 15 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4 ft.
Slope: Vertical
Downstream
Fill Depth: 4.7 ft.
Slope: Vertical
Approaches
Left Approach
Length: 370 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.474
Erosion: 0.7247 tons/year
Right Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.2066 tons/year
Erosion Information
Total Erosion at Crossing: 0.9421 tons/year
Extent of Erosion: Minor
Notes: Rills and gullies on both upstream and downstream sides of steep embankments. Road material is also reaching stream.
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Upstream Embankment |
1 ft. |
1 ft. |
1 ft. |
yes |
Sandy Loam |
0.001 |
Right Upstream Embankment |
5 ft. |
1 ft. |
1 ft. |
yes |
Sandy Loam |
0.0048 |
Right Downstream Embankment |
5 ft. |
1 ft. |
1 ft. |
yes |
Gravel |
0.005 |
Summary Information
Fish Passability 0.9