Road Stream Crossing Site EBAR001
Au Gres River Watershed, East Branch Au Gres River (Whitney Drain)
US-23
Whitney Twp,
Arenac County
Information collected by:
Site Location
GPS Coordinates: 44.14339
, -83.56866
T20N
R7E
Sec 12
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 1.7336 tons/year
Severity: Moderate
Year Inventoried: 2014
Site ID
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Other
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Rock
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 46 ft.
, Width 51 ft.
, Height 26.5 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 2.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.7 ft./sec.
Structure Outlet
Water Depth: 2.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.3 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: 3.5 ft.
Bankfull Width: 51 ft.
Wetted Width: 51 ft.
Water Velocity: 1.7 ft./sec.
(Measured with Meter)
Dominant Substrate: Cobble
Road Information
Paved
State Road
Road Condition: Good
Road Width at Culvert: 46 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.8668 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.8668 tons/year
Erosion Information
Total Erosion at Crossing: 1.7336 tons/year
Notes: None.
Summary Information
Fish Passability 0.5
These non-native species were observerd at this site: Spotted Knapweed