US Bridges

EB SR706 over Intracoastal Waterway

Good

Palm Beach County, Florida · Indiantown Rd./Icw · Structure no. 930453

Built
1999
26 years old
Condition
Good
inspected October 2023
Type
Movable - Bascule
Steel
Length
1,344 ft
1 main span
Daily traffic
16,000
2023 count
Owner
State
State Highway Agency

About this bridge

EB SR706 over Intracoastal Waterway is a steel movable - bascule carrying EB SR706 over Intracoastal Waterway in Palm Beach County, Florida. It was built in 1999, so it is 26 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 16,000 vehicles a day, roughly 4% of them trucks, projected to reach 27,760 by 2042. The structure is 1,344 ft (409.6 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesEB SR706
CrossesIntracoastal Waterway
LocationIndiantown Rd./Icw
RouteState Highway 706
StateFlorida
Coordinates26.93381, -80.08392
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 protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.9 US tons
Inventory rating42 US tons

Structure

Structure typeMovable - Bascule
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+10 approach)
Design loadHS 20 + Mod
Structure length1,344 ft (409.6 m)
Longest span130 ft (39.6 m)
Deck width57 ft (17.5 m)
Roadway width49 ft (14.8 m)
Vertical clearance over deck19 ft (5.8 m)

Traffic and service

Average daily traffic16,000 (2023)
Projected traffic27,760 by 2042
Trucks4%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed1.2 mi (2 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was EB SR706 over Intracoastal Waterway built?

It was built in 1999, making it 26 years old in 2025.

What condition is EB SR706 over Intracoastal Waterway 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 October 2023.

How much traffic does EB SR706 over Intracoastal Waterway carry?

About 16,000 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is EB SR706 over Intracoastal Waterway?

The structure is 1,344 ft (409.6 m) long with a longest span of 130 ft (39.6 m) and a deck 57 ft wide.

Who owns EB SR706 over Intracoastal Waterway?

It is owned by the State Highway Agency.