US Bridges

1st ST N & 54 Av N over Placido Bayou

Fair

Pinellas County, Florida · 54th Ave N & 1st ST N · Structure no. 157401

Built
1965
60 years old, rebuilt 1980
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
32 ft
1 main span
Daily traffic
3,400
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

1st ST N & 54 Av N over Placido Bayou is a concrete culvert carrying 1st ST N & 54 Av N over Placido Bayou in Pinellas County, Florida. It was built in 1965 and reconstructed in 1980, so it is 60 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 5 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 3,400 vehicles a day, roughly 6% of them trucks, projected to reach 5,899 by 2042. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

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Carries1st ST N & 54 Av N
CrossesPlacido Bayou
Location54th Ave N & 1st ST N
RouteCity Street 0
CountyPinellas County
StateFlorida
Coordinates27.82121, -82.63454
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
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.8 US tons
Inventory rating32.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span32 ft (9.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,400 (2023)
Projected traffic5,899 by 2042
Trucks6%
Lanes on structure4
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 1st ST N & 54 Av N over Placido Bayou built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1980.

What condition is 1st ST N & 54 Av N over Placido Bayou 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 July 2023.

How much traffic does 1st ST N & 54 Av N over Placido Bayou carry?

About 3,400 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is 1st ST N & 54 Av N over Placido Bayou?

The structure is 32 ft (9.8 m) long with a longest span of 32 ft (9.8 m).

Who owns 1st ST N & 54 Av N over Placido Bayou?

It is owned by the City or Municipal Highway Agency.