US Bridges

SR821 SB Heft 12.5 over Caribbean Blvd

Good

Miami-Dade County, Florida · 0.4 Miles South of US-1 · Structure no. 870184

Built
1972
53 years old, rebuilt 2016
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
245 ft
4 main spans
Daily traffic
86,000
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR821 SB Heft 12.5 over Caribbean Blvd is a prestressed concrete stringer/multi-beam or girder carrying SR821 SB Heft 12.5 over Caribbean Blvd in Miami-Dade County, Florida. It was built in 1972 and reconstructed in 2016, so it is 53 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 86,000 vehicles a day, roughly 6% of them trucks, projected to reach 149,210 by 2044. The structure is 245 ft (74.6 m) long and 88 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR821 SB Heft 12.5
CrossesCaribbean Blvd
Location0.4 Miles South of US-1
RouteState Highway 821
StateFlorida
Coordinates25.57704, -80.36486
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating47.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length245 ft (74.6 m)
Longest span74 ft (22.7 m)
Deck width88 ft (26.8 m)
Roadway width74 ft (22.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic86,000 (2022)
Projected traffic149,210 by 2044
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR821 SB Heft 12.5 over Caribbean Blvd built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2016.

What condition is SR821 SB Heft 12.5 over Caribbean Blvd in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does SR821 SB Heft 12.5 over Caribbean Blvd carry?

About 86,000 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR821 SB Heft 12.5 over Caribbean Blvd?

The structure is 245 ft (74.6 m) long with a longest span of 74 ft (22.7 m) and a deck 88 ft wide.

Who owns SR821 SB Heft 12.5 over Caribbean Blvd?

It is owned by the State Toll Authority.