Road Stream Crossing Site AGIO034

Au Gres River Watershed, Elm Creek
Kitchen Rd
Sherman Twp, Iosco County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.24218 , -83.75313
T21N R6E Sec 6
Owned by Private
Fish Passability 0
Perch Height: 1.4 ft.
Total Erosion: 5.3449 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: Headwall
Outlet Type: Outlet Apron
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 29 ft. , Width 5 ft. , Height 3.6 ft.
Perch Height: 1.4 ft.
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.2 ft./sec.
Structure Outlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.7 ft./sec.
*Water Velocities were measured 0.2 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: 0.2 ft.
Bankfull Width: 8.6 ft.
Wetted Width: 2.2 ft.
Water Velocity: 0.7 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 17 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1 ft.
Slope: More than 1:2
Downstream
Fill Depth: 0.7 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: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 2.6694 tons/year
Erosion Information
Total Erosion at Crossing: 5.3449 tons/year
Extent of Erosion: Minor
Notes: Minor erosion hole above upstream headwall. Also, significant erosion due to cattle accessing stream upstream of structure.
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Upstream Embankment
4 ft.
2.7 ft.
1.6 ft.
yes
Sandy Loam
0.0061
Summary Information
Fish Passability 0
Erosion is an area of concern for this site. Note: erosion primarily due to cattle accessing stream upstream from culvert, but it appears to be rather significant.
A future visit to this site is recommended. Not for RSX structure, but rather regarding adjacent agricultural practices.