US Bridges

Rickenbakercswy SB over Biscayne Bay

Fair

Miami-Dade County, Florida · 100FT.SOUTH of Toll Plaza · Structure no. 874541

Built
1944
81 years old, rebuilt 1985
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
684 ft
13 main spans
Daily traffic
30,500
2023 count
Owner
County
County Highway Agency

About this bridge

Rickenbakercswy SB over Biscayne Bay is a steel stringer/multi-beam or girder carrying Rickenbakercswy SB over Biscayne Bay in Miami-Dade County, Florida. It was built in 1944 and reconstructed in 1985, so it is 81 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 30,500 vehicles a day, roughly 3% of them trucks, projected to reach 39,500 by 2042. The structure is 684 ft (208.5 m) long and 100 ft wide.

Location

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CarriesRickenbakercswy SB
CrossesBiscayne Bay
Location100FT.SOUTH of Toll Plaza
CountyMiami-Dade County
StateFlorida
Coordinates25.74754, -80.20154
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.2 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans13
Design loadHS 20
Structure length684 ft (208.5 m)
Longest span52 ft (16 m)
Deck width100 ft (30.4 m)
Roadway width73 ft (22.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,500 (2023)
Projected traffic39,500 by 2042
Trucks3%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$15 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Rickenbakercswy SB over Biscayne Bay built?

It was built in 1944, making it 81 years old in 2025. It was reconstructed in 1985.

What condition is Rickenbakercswy SB over Biscayne Bay in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Rickenbakercswy SB over Biscayne Bay carry?

About 30,500 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Rickenbakercswy SB over Biscayne Bay?

The structure is 684 ft (208.5 m) long with a longest span of 52 ft (16 m) and a deck 100 ft wide.

Who owns Rickenbakercswy SB over Biscayne Bay?

It is owned by the County Highway Agency.