US Bridges

NB A1A/WB 858 Ramp over SR-A1A SB & SR-858 EB

Good

Broward County, Florida · 1.8 Mile South of SR-820 · Structure no. 860620

Built
2002
23 years old
Condition
Good
inspected April 2023
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
615 ft
4 main spans
Daily traffic
8,250
2020 count
Owner
State
State Highway Agency

About this bridge

NB A1A/WB 858 Ramp over SR-A1A SB & SR-858 EB is a prestressed concrete continuous segmental box girder carrying NB A1A/WB 858 Ramp over SR-A1A SB & SR-858 EB in Broward County, Florida. It was built in 2002, so it is 23 years old, younger 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 8,250 vehicles a day, roughly 5% of them trucks, projected to reach 11,500 by 2042. The structure is 615 ft (187.6 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNB A1A/WB 858 Ramp
CrossesSR-A1A SB & SR-858 EB
Location1.8 Mile South of SR-820
RouteState Highway 0A1A
StateFlorida
Coordinates25.98613, -80.11946
Functional classUrban Minor Arterial

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.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2023
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 alignment6: Equal to present minimum criteria
Operating rating67.5 US tons
Inventory rating40.6 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length615 ft (187.6 m)
Longest span187 ft (57 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,250 (2020)
Projected traffic11,500 by 2042
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 NB A1A/WB 858 Ramp over SR-A1A SB & SR-858 EB built?

It was built in 2002, making it 23 years old in 2025.

What condition is NB A1A/WB 858 Ramp over SR-A1A SB & SR-858 EB 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 April 2023.

How much traffic does NB A1A/WB 858 Ramp over SR-A1A SB & SR-858 EB carry?

About 8,250 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is NB A1A/WB 858 Ramp over SR-A1A SB & SR-858 EB?

The structure is 615 ft (187.6 m) long with a longest span of 187 ft (57 m) and a deck 31 ft wide.

Who owns NB A1A/WB 858 Ramp over SR-A1A SB & SR-858 EB?

It is owned by the State Highway Agency.