US Bridges

Ramp to SR-856 over SR A1A to SR 856 N to W

Good

Miami-Dade County, Florida · 0.1M W of A1A · Structure no. 870603

Built
1981
44 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,368 ft
5 main spans
Daily traffic
18,000
2025 count
Owner
State
State Highway Agency

About this bridge

Ramp to SR-856 over SR A1A to SR 856 N to W is a steel continuous stringer/multi-beam or girder carrying Ramp to SR-856 over SR A1A to SR 856 N to W in Miami-Dade County, Florida. It was built in 1981, so it is 44 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 18,000 vehicles a day, roughly 3% of them trucks, projected to reach 31,230 by 2044. The structure is 1,368 ft (417 m) long and 43 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

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CarriesRamp to SR-856
CrossesSR A1A to SR 856 N to W
Location0.1M W of A1A
RouteState Highway 856
CountyMiami-Dade County
StateFlorida
Coordinates25.95351, -80.1208
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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5 (+8 approach)
Design loadHL 93
Structure length1,368 ft (417 m)
Longest span136 ft (41.6 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,000 (2025)
Projected traffic31,230 by 2044
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed7.5 mi (12 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
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 Ramp to SR-856 over SR A1A to SR 856 N to W built?

It was built in 1981, making it 44 years old in 2025.

What condition is Ramp to SR-856 over SR A1A to SR 856 N to W 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 January 2025.

How much traffic does Ramp to SR-856 over SR A1A to SR 856 N to W carry?

About 18,000 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Ramp to SR-856 over SR A1A to SR 856 N to W?

The structure is 1,368 ft (417 m) long with a longest span of 136 ft (41.6 m) and a deck 43 ft wide.

Who owns Ramp to SR-856 over SR A1A to SR 856 N to W?

It is owned by the State Highway Agency.