US Bridges

SR708 (blue Heron) over Lake Worth Relief

Good

Palm Beach County, Florida · SR-A1A East of Icww · Structure no. 930545

Built
2011
14 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete Continuous
Length
296 ft
8 main spans
Daily traffic
21,800
2022 count
Owner
State
State Highway Agency

About this bridge

SR708 (blue Heron) over Lake Worth Relief is a concrete continuous slab carrying SR708 (blue Heron) over Lake Worth Relief in Palm Beach County, Florida. It was built in 2011, so it is 14 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 21,800 vehicles a day, roughly 8% of them trucks, projected to reach 37,823 by 2044. The structure is 296 ft (90.2 m) long and 95 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSR708 (blue Heron)
CrossesLake Worth Relief
LocationSR-A1A East of Icww
RouteState Highway 0A1A
StateFlorida
Coordinates26.78368, -80.03987
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.7 US tons
Inventory rating46.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHL 93
Structure length296 ft (90.2 m)
Longest span37 ft (11.3 m)
Deck width95 ft (29 m)
Roadway width74 ft (22.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,800 (2022)
Projected traffic37,823 by 2044
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRelief for waterway
Detour if closed9.9 mi (16 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR708 (blue Heron) over Lake Worth Relief built?

It was built in 2011, making it 14 years old in 2025.

What condition is SR708 (blue Heron) over Lake Worth Relief 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 August 2023.

How much traffic does SR708 (blue Heron) over Lake Worth Relief carry?

About 21,800 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is SR708 (blue Heron) over Lake Worth Relief?

The structure is 296 ft (90.2 m) long with a longest span of 37 ft (11.3 m) and a deck 95 ft wide.

Who owns SR708 (blue Heron) over Lake Worth Relief?

It is owned by the State Highway Agency.