Road Stream Crossing Site AGIO061
Au Gres River Watershed, Tributary of Au Gres River
Towerline Rd
Burleigh Twp,
Iosco County
Information collected by:
Site Location
GPS Coordinates: 44.1688
, -83.78325
T21N
R5E
Sec 35 & 36
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 4.1031 tons/year
Severity: Severe
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: Ellipse
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 43 ft.
, Width 4.3 ft.
, Height 3.4 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.6 ft./sec.
Structure Outlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.5 ft./sec.
*Water Velocities were measured 0.1 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 29 ft.
, Width 17 ft.
, Depth 2.9 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 6.7 ft.
Wetted Width: 5.3 ft.
Water Velocity: 1.7 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 24 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 0.8 ft.
Slope: More than 1:2
Downstream
Fill Depth: 2 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 3.7686 tons/year
Right Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.3306 tons/year
Erosion Information
Total Erosion at Crossing: 4.1031 tons/year
Extent of Erosion: Minor
Notes: Gullying of road shoulder and embankment fill (gravel and sand).
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Left Downstream Embankment |
8 ft. |
2 ft. |
0.3 ft. |
yes |
Gravel |
0.0024 |
Right Downstream Embankment |
7 ft. |
1 ft. |
0.2 ft. |
yes |
Sand |
0.0015 |
Summary Information
Fish Passability 0.5