Bridge Type
Main Span(s): Steel [3] Movable - Bascule [16]
Approach Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 649 m = 2129.4 ft
Main Spans: 1 at 24.7 m = 81.0 ft
Approach Spans: 43
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 11.4 m = 37.4 ft for a 9 m = 29.5 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 5.1 m = 16.7 ft
Location
Longboat Key [41150]: Manatee County [081], Florida [12]
Owned by State Highway Agency [01], DOT District: 1
1.7MI SOUTH OF SR 684
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 30 metric ton = 33.0 tons (Load Factor(LF) [1])
Inventory: 19.3 metric ton = 21.2 tons (Load Factor(LF) [1])
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: Superior to present desirable criteria [9] and Countermeasures have been installed to mitigate an existing problem with scour. [7]
Inspections
Date: February 2020 [0220] and Frequency: 24
Future Work
Work Needed: Other structural work: including hydraulic replacements. [38]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 10200 (2020) and Trucks: 5%
Future ADT: 12750 (In 2040
)
