Bridge Type
Main Span(s): Steel [3] Movable - Swing [17]
Approach Span(s): Concrete [1] Slab [01]
Deck: Open Grating [3] with Wearing Surface:
Bridge Dimensions
Length: 99.1 m = 325.1 ft
Main Spans: 1 at 54.9 m = 180.1 ft
Approach Spans: 7
Skew: 5
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 11.4 m = 37.4 ft for a 11.9 m = 39.0 ft approaching roadway.
Vertical Clearance: 4.67 m = 15.3 ft and Navigational Clearance: 1.5 m = 4.9 ft
Location
Franklin [27155]: St. Mary Parish [101], Louisiana [22]
Owned by State Highway Agency [01], DOT District: 3
LA3069
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: M 13.5 / H 15 [2]
Operating: 29 metric ton = 31.9 tons (Allowable Stress(AS) [2])
Inventory: 20 metric ton = 22.0 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: May 2020 [0520] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 2000 (2016) and Trucks: 12%
Future ADT: 3400 (In 2036
)
