Road Stream Crossing Site UBR_MB16

Upper Black River Watershed, Main Branch Black River
Black River Rd
Forest Twp, Cheboygan County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 45.33741 , -84.26846
T34N R1E Sec 13, 14
Owned by Private
State
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 0.0694 tons/year
Severity: Moderate
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Right
Road Approach - Left
Crossing Information
Type of Crossing: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Headwall
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Rock
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 28 ft. , Width 100 ft. , Height 12 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 2.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.1 ft./sec.
Structure Outlet
Water Depth: 3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2 ft./sec.
*Water Velocities were measured 1 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: 3 ft.
Bankfull Width: 70 ft.
Wetted Width: 65 ft.
Water Velocity: 3 ft./sec. (Measured with Float Test)
Dominant Substrate: Cobble
Road Information
Paved County Road
Road Condition: Fair
Road Width at Culvert: 21 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Fill Depth: 0 ft.
Fill Depth: 0 ft.
Approaches
Left Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0347 tons/year
Right Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0347 tons/year
Erosion Information
Total Erosion at Crossing: 0.0694 tons/year
Summary Information
Fish Passability 0.5