Bridge Type
Main Span(s): Steel [3] Movable - Swing [17]
Approach Span(s): Other [00]
Deck: Open Grating [3] with Wearing Surface:
Bridge Dimensions
Length: 104.5 m = 342.9 ft
Main Spans: 11 at 43.6 m = 143.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9.8 m = 32.2 ft (2 Lanes) and Out-To-Out: 10.6 m = 34.8 ft for a 10.4 m = 34.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 3.4 m = 11.2 ft
Location
Unknown [00000]: St. Martin Parish [099], Louisiana [22]
Owned by County Highway Agency [02], DOT District: 3
0.4 MI E of LA 31
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 29.8 metric ton = 32.8 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 23 metric ton = 25.3 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Equal to present minimum criteria [6]
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: October 2020 [1020] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.8 km = 0.5 mi
Traffic
ADT: 2500 (2000) and Trucks: 0%
Future ADT: 1500 (In 2036
)
