US Bridges

SR 804 Boynton B B over I 95 SR 9

Fair

Palm Beach County, Florida · 1 Mile West of US 1 · Structure no. 930285

Built
1976
49 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
276 ft
4 main spans
Daily traffic
56,000
2024 count
Owner
State
State Highway Agency

About this bridge

SR 804 Boynton B B over I 95 SR 9 is a prestressed concrete stringer/multi-beam or girder carrying SR 804 Boynton B B over I 95 SR 9 in Palm Beach County, Florida. It was built in 1976, so it is 49 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 56,000 vehicles a day, roughly 3% of them trucks, projected to reach 97,160 by 2044. The structure is 276 ft (84 m) long and 96 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 804 Boynton B B
CrossesI 95 SR 9
Location1 Mile West of US 1
RouteState Highway 804
CountyPalm Beach County
StateFlorida
Coordinates26.52891, -80.07309
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.7 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length276 ft (84 m)
Longest span100 ft (30.5 m)
Deck width96 ft (29.2 m)
Roadway width81 ft (24.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56,000 (2024)
Projected traffic97,160 by 2044
Trucks3%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 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 SR 804 Boynton B B over I 95 SR 9 built?

It was built in 1976, making it 49 years old in 2025.

What condition is SR 804 Boynton B B over I 95 SR 9 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 September 2024.

How much traffic does SR 804 Boynton B B over I 95 SR 9 carry?

About 56,000 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is SR 804 Boynton B B over I 95 SR 9?

The structure is 276 ft (84 m) long with a longest span of 100 ft (30.5 m) and a deck 96 ft wide.

Who owns SR 804 Boynton B B over I 95 SR 9?

It is owned by the State Highway Agency.