US Bridges

Island Road over Lake Worth

FairPosted for load

Palm Beach County, Florida · 0.4MI W of S. County Road · Structure no. 936802

Built
1946
79 years old, rebuilt 1988
Condition
Fair
inspected January 2024
Type
Tee Beam
Concrete
Length
264 ft
7 main spans
Daily traffic
802
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Island Road over Lake Worth is a concrete tee beam carrying Island Road over Lake Worth in Palm Beach County, Florida. It was built in 1946 and reconstructed in 1988, so it is 79 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. Its operating status is: posted for load restriction.

It carries about 802 vehicles a day, roughly 1% of them trucks, projected to reach 1,301 by 2042. The structure is 264 ft (80.5 m) long and 20 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesIsland Road
CrossesLake Worth
Location0.4MI W of S. County Road
RouteCity Street 0
StateFlorida
Coordinates26.69524, -80.0426
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating88 US tons
Inventory rating53 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length264 ft (80.5 m)
Longest span38 ft (11.6 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic802 (2024)
Projected traffic1,301 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Island Road over Lake Worth built?

It was built in 1946, making it 79 years old in 2025. It was reconstructed in 1988.

What condition is Island Road over Lake Worth 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 January 2024.

How much traffic does Island Road over Lake Worth carry?

About 802 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Island Road over Lake Worth?

The structure is 264 ft (80.5 m) long with a longest span of 38 ft (11.6 m) and a deck 20 ft wide.

Who owns Island Road over Lake Worth?

It is owned by the Town or Township Highway Agency.