US Bridges

54th Ave North over I-275

Fair

Pinellas County, Florida · 2.1 MI S of SR-694 · Structure no. 150096

Built
1972
53 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
298 ft
4 main spans
Daily traffic
22,500
2023 count
Owner
State
State Highway Agency

About this bridge

54th Ave North over I-275 is a steel stringer/multi-beam or girder carrying 54th Ave North over I-275 in Pinellas County, Florida. It was built in 1972, so it is 53 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 22,500 vehicles a day, roughly 6% of them trucks, projected to reach 39,038 by 2042. The structure is 298 ft (90.7 m) long and 128 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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Carries54th Ave North
CrossesI-275
Location2.1 MI S of SR-694
RouteCity Street 0
CountyPinellas County
StateFlorida
Coordinates27.82112, -82.66465
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating62.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length298 ft (90.7 m)
Longest span130 ft (39.6 m)
Deck width128 ft (38.9 m)
Roadway width97 ft (29.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,500 (2023)
Projected traffic39,038 by 2042
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 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 54th Ave North over I-275 built?

It was built in 1972, making it 53 years old in 2025.

What condition is 54th Ave North over I-275 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 October 2023.

How much traffic does 54th Ave North over I-275 carry?

About 22,500 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is 54th Ave North over I-275?

The structure is 298 ft (90.7 m) long with a longest span of 130 ft (39.6 m) and a deck 128 ft wide.

Who owns 54th Ave North over I-275?

It is owned by the State Highway Agency.