Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 918.1 m = 3012.3 ft
Main Spans: 1 at 86.9 m = 285.1 ft
Approach Spans: 48
Skew: 0
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 10.2 m = 33.5 ft for a 14.3 m = 46.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 16.2 m = 53.2 ft
Location
Unknown [00000]: Tangipahoa Parish [105], Louisiana [22]
Owned by State Highway Agency [01], DOT District: 62
Pass Manchac
Condition
Deck: Satisfactory [6]
Superstructure: Poor [4]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 32.7 metric ton = 36.0 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 25.3 metric ton = 27.8 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: 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 is scour critical; field review indicates that extensive scour has occurred at bridge foundations. [2]
Inspections
Date: December 2020 [1220] 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: 2400 (2016) and Trucks: 12%
Future ADT: 1638 (In 2036
)