Road Stream Crossing Site EBIO037

Au Gres River Watershed, Smith Creek
Towerline Rd
Plainfield Twp, Iosco County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.40043 , -83.785
T23N R5E Sec 11 & 12
Owned by Private
Fish Passability 1
Structure is NOT Perched
Total Erosion: 5.709 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: Pipe Arch
Inlet Type: Headwall
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 50 ft. , Width 14.5 ft. , Height 4.6 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.6 ft./sec.
Structure Outlet
Water Depth: 1.5 ft.
Embedded Depth of Structure: 0.4 ft.
Water Velocity*: 0.7 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less 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: 1.3 ft.
Bankfull Width: 20.5 ft.
Wetted Width: 16 ft.
Water Velocity: 1.1 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 35 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.6 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.9 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 410 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.482
Erosion: 1.9054 tons/year
Right Approach
Length: 731 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.54
Erosion: 3.8036 tons/year
Erosion Information
Total Erosion at Crossing: 5.709 tons/year
Notes: No erosion apparent.
Summary Information
Fish Passability 1
These non-native species were observerd at this site: Spotted knapweed