US Bridges

Lantana Road EB over Lake Osbourne

Good

Palm Beach County, Florida · 0.6 MI W of I-95 · Structure no. 934342

Built
1989
36 years old
Condition
Good
inspected June 2024
Type
Slab
Prestressed Concrete
Length
136 ft
4 main spans
Daily traffic
29,000
2023 count
Owner
County
County Highway Agency

About this bridge

Lantana Road EB over Lake Osbourne is a prestressed concrete slab carrying Lantana Road EB over Lake Osbourne in Palm Beach County, Florida. It was built in 1989, so it is 36 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 29,000 vehicles a day, roughly 4% of them trucks, projected to reach 50,315 by 2045. The structure is 136 ft (41.5 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLantana Road EB
CrossesLake Osbourne
Location0.6 MI W of I-95
RouteCounty Highway 812
StateFlorida
Coordinates26.58753, -80.07831
Functional classUrban Other Principal 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.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length136 ft (41.5 m)
Longest span34 ft (10.4 m)
Deck width48 ft (14.7 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,000 (2023)
Projected traffic50,315 by 2045
Trucks4%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lantana Road EB over Lake Osbourne built?

It was built in 1989, making it 36 years old in 2025.

What condition is Lantana Road EB over Lake Osbourne 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 June 2024.

How much traffic does Lantana Road EB over Lake Osbourne carry?

About 29,000 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Lantana Road EB over Lake Osbourne?

The structure is 136 ft (41.5 m) long with a longest span of 34 ft (10.4 m) and a deck 48 ft wide.

Who owns Lantana Road EB over Lake Osbourne?

It is owned by the County Highway Agency.