Road Stream Crossing Site UBR_SC02

Upper Black River Watershed, Stony Creek
County Line Rd
Allis Twp, Presque Isle County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 45.41729 , -84.247496
T35N R2E Sec 18
Owned by Private
Fish Passability 0
Structure is NOT Perched
Total Erosion: 0.3052 tons/year
Severity: Severe
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Right
Road Approach - Left
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 2
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Multiple Culverts/Spans
Culvert/Span
Width
Length
Height
Material
1
6.3 ft.
40 ft.
6.3 ft.
Metal
2
6.3 ft.
40 ft.
6.3 ft.
Metal
Structure Interior: corrugated
Dimensions of Structure: Length 40 ft. , Width 6.3 ft. , Height 6.3 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 2.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.1 ft./sec.
Structure Outlet
Water Depth: 2.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.4 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface (with Meter)
Additional Comments
#1 = main culvert
Stream Information
Stream Flow: Bankfull
Scour Pool: Length 34 ft. , Width 26 ft. , Depth 3 ft.
Upstream Pond: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Riffle Information
Water Depth: 1.7 ft.
Bankfull Width: 19 ft.
Wetted Width: 15 ft.
Water Velocity: 3.1 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved State Road
Road Condition: Good
Road Width at Culvert: 22 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 3 ft.
Slope: 1:2
Downstream
Fill Depth: 2.6 ft.
Slope: 1:2
Approaches
Left Approach
Length: 664 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.53
Erosion: 0.2557 tons/year
Right Approach
Length: 551 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.02 tons/year
Erosion Information
Total Erosion at Crossing: 0.3052 tons/year
Extent of Erosion: Moderate
Notes: Short foot path over downstream culvert. Clay and gravel, no active runoff at structure (surveyed during rain).
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Downstream Embankment
6 ft.
1 ft.
0.5 ft.
yes
Clay
0.0147
Left Downstream Embankment
6 ft.
1 ft.
0.5 ft.
yes
Clay
0.0147
Summary Information
Fish Passability 0
These non-native species were observerd at this site: Thistle