Road Stream Crossing Site UBR_LR02
Upper Black River Watershed, Little Rainy River
S Porter Rd
Allis Twp,
presque Isle County
Information collected by:
Site Location
GPS Coordinates: 45.3138
, -84.1518
T34N
R2E
Sec 23, 24
Owned by Private
Fish Passability 0
Structure is NOT Perched
Total Erosion: 8.5545 tons/year
Severity: Severe
Year Inventoried: 2014
Site ID
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Rock
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 39.7 ft.
, Width 7.4 ft.
, Height 5.5 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0.6 ft.
Water Velocity*: 3.4 ft./sec.
Structure Outlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0.4 ft.
Water Velocity*: 1.3 ft./sec.
*Water Velocities were measured 0.3 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: 1.9 ft.
Bankfull Width: 11.1 ft.
Wetted Width: 9.1 ft.
Water Velocity: 0.9 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 27.4 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1 ft.
Slope: 1:2
Downstream
Fill Depth: 1 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 990 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.569
Erosion: 4.252 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 4.3025 tons/year
Erosion Information
Total Erosion at Crossing: 8.5545 tons/year
Summary Information
Fish Passability 0