US Bridges

Allamanda Blvd. over Relief Canal

Good

Palm Beach County, Florida · 0.10 MI S of Burns Road · Structure no. 937003

Built
1960
65 years old, rebuilt 1998
Condition
Good
inspected September 2024
Type
Slab
Prestressed Concrete
Length
36 ft
2 main spans
Daily traffic
800
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Allamanda Blvd. over Relief Canal is a prestressed concrete slab carrying Allamanda Blvd. over Relief Canal in Palm Beach County, Florida. It was built in 1960 and reconstructed in 1998, so it is 65 years old, older 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 800 vehicles a day, roughly 2% of them trucks, projected to reach 1,388 by 2044. The structure is 36 ft (11 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesAllamanda Blvd.
CrossesRelief Canal
Location0.10 MI S of Burns Road
RouteCity Street 0
StateFlorida
Coordinates26.82979, -80.07729
Functional classUrban Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHL 93
Structure length36 ft (11 m)
Longest span18 ft (5.5 m)
Deck width36 ft (11 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2024)
Projected traffic1,388 by 2044
Trucks2%
Lanes on structure2
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Allamanda Blvd. over Relief Canal built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1998.

What condition is Allamanda Blvd. over Relief Canal 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 September 2024.

How much traffic does Allamanda Blvd. over Relief Canal carry?

About 800 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Allamanda Blvd. over Relief Canal?

The structure is 36 ft (11 m) long with a longest span of 18 ft (5.5 m) and a deck 36 ft wide.

Who owns Allamanda Blvd. over Relief Canal?

It is owned by the City or Municipal Highway Agency.