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: 61.6 m = 202.1 ft
Main Spans: 1 at 41.1 m = 134.8 ft
Approach Spans: 3
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 10.4 m = 34.1 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 4.83 m = 15.8 ft and Navigational Clearance: 1.2 m = 3.9 ft
Location
Unknown [00000]: Terrebonne Parish [109], Louisiana [22]
Owned by State Highway Agency [01], DOT District: 2
11.0 MI SOUTH OF LA 661
Condition
Deck: Good [7]
Superstructure: Poor [4]
Substructure: Poor [4]
Loading
Design: M 13.5 / H 15 [2]
Operating: 26.6 metric ton = 29.3 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 20.4 metric ton = 22.4 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
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: November 1999 [1199] 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: 15.9 km = 9.9 mi
Traffic
ADT: 2200 (2016) and Trucks: 12%
Future ADT: 2604 (In 2036
)