US Bridges

SW 23rd Ave. over Lwdd E-4 Canal

Fair

Palm Beach County, Florida · 0.25 Mi. W of I-95 · Structure no. 930302

Built
1975
50 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
139 ft
3 main spans
Daily traffic
15,200
2023 count
Owner
County
County Highway Agency

About this bridge

SW 23rd Ave. over Lwdd E-4 Canal is a prestressed concrete stringer/multi-beam or girder carrying SW 23rd Ave. over Lwdd E-4 Canal in Palm Beach County, Florida. It was built in 1975, so it is 50 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 15,200 vehicles a day, roughly 8% of them trucks, projected to reach 26,372 by 2042. The structure is 139 ft (42.3 m) long and 56 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSW 23rd Ave.
CrossesLwdd E-4 Canal
Location0.25 Mi. W of I-95
RouteCounty Highway 0
CountyPalm Beach County
StateFlorida
Coordinates26.5075, -80.07872
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length139 ft (42.3 m)
Longest span46 ft (14 m)
Deck width56 ft (17.2 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,200 (2023)
Projected traffic26,372 by 2042
Trucks8%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 SW 23rd Ave. over Lwdd E-4 Canal built?

It was built in 1975, making it 50 years old in 2025.

What condition is SW 23rd Ave. over Lwdd E-4 Canal 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 April 2024.

How much traffic does SW 23rd Ave. over Lwdd E-4 Canal carry?

About 15,200 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is SW 23rd Ave. over Lwdd E-4 Canal?

The structure is 139 ft (42.3 m) long with a longest span of 46 ft (14 m) and a deck 56 ft wide.

Who owns SW 23rd Ave. over Lwdd E-4 Canal?

It is owned by the County Highway Agency.