Road Stream Crossing Site UBR_MB11
Upper Black River Watershed, Main Branch Black River
Black River Rd
Forest Twp,
Cheboygan County
Information collected by:
Site Location
GPS Coordinates: 45.263268
, -84.266869
T33N
R1E
Sec 11, 12
Owned by Private
State
State
Fish Passability 0
Structure is NOT Perched
Total Erosion: 0.7307 tons/year
Severity: Severe
Year Inventoried: 2014
Site ID
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: Wingwall 10-30 Degree
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Rock
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 31.5 ft.
, Width 61 ft.
, Height 9.5 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.9 ft./sec.
Structure Outlet
Water Depth: 2.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.1 ft./sec.
*Water Velocities were measured 2 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: 1.4 ft.
Bankfull Width: 61 ft.
Wetted Width: 56 ft.
Water Velocity: 2.2 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Poor
Road Width at Culvert: 27 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Fill Depth: 0 ft.
Fill Depth: 0 ft.
Approaches
Left Approach
Length: 866 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.557
Erosion: 0.4302 tons/year
Right Approach
Length: 640 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.526
Erosion: 0.3005 tons/year
Erosion Information
Total Erosion at Crossing: 0.7307 tons/year
Summary Information
Fish Passability 0