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: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 313.5 m = 1028.6 ft
Main Spans: 1 at 27.4 m = 89.9 ft
Approach Spans: 16
Skew: 0
Width, Roadway: 12.2 m = 40.0 ft (3 Lanes) and Out-To-Out: 14.7 m = 48.2 ft for a 11.3 m = 37.1 ft approaching roadway.
Vertical Clearance: 30.18 m = 99.0 ft and Navigational Clearance: 6.4 m = 21.0 ft
Location
Miami Beach [45025]: Miami-Dade County [086], Florida [12]
Owned by State Highway Agency [01], DOT District: 6
NE 79th St & Biscayne Bay
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 41.7 metric ton = 45.9 tons (Load Factor(LF) [1])
Inventory: 24.9 metric ton = 27.4 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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 assessed or calculated scour condition. [5]
Inspections
Date: February 1999 [299] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 19750 (2019) and Trucks: 7%
Future ADT: 34266 (In 2041
)