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: 389.6 m = 1278.3 ft
Main Spans: 1 at 42.3 m = 138.8 ft
Approach Spans: 22
Skew: 0
Width, Roadway: 9.7 m = 31.8 ft (2 Lanes) and Out-To-Out: 11.8 m = 38.7 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 5.61 m = 18.4 ft and Navigational Clearance: 6.4 m = 21.0 ft
Location
Siesta Key [66000]: Sarasota County [115], Florida [12]
Owned by State Highway Agency [01], DOT District: 1
1.2MI WEST OF US-41
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 42.2 metric ton = 46.4 tons (Load Factor(LF) [1])
Inventory: 25.3 metric ton = 27.8 tons (Load Factor(LF) [1])
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 is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: August 1999 [899] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 1 km = 0.6 mi
Traffic
ADT: 15500 (2020) and Trucks: 5%
Future ADT: 26892 (In 2040
)
