US Bridges

SR-693 SB over Boca Ciega Bay

Fair

Pinellas County, Florida · 0.8 Mi. N of SR-699 · Structure no. 150054

Built
1966
59 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
279 ft
5 main spans
Daily traffic
13,500
2022 count
Owner
State
State Highway Agency

About this bridge

SR-693 SB over Boca Ciega Bay is a prestressed concrete stringer/multi-beam or girder carrying SR-693 SB over Boca Ciega Bay in Pinellas County, Florida. It was built in 1966, so it is 59 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 13,500 vehicles a day, roughly 4% of them trucks, projected to reach 23,422 by 2044. The structure is 279 ft (85.1 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR-693 SB
CrossesBoca Ciega Bay
Location0.8 Mi. N of SR-699
RouteState Highway 693
CountyPinellas County
StateFlorida
Coordinates27.75138, -82.74084
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.9 US tons
Inventory rating33.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length279 ft (85.1 m)
Longest span56 ft (17 m)
Deck width40 ft (12.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,500 (2022)
Projected traffic23,422 by 2044
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR-693 SB over Boca Ciega Bay built?

It was built in 1966, making it 59 years old in 2025.

What condition is SR-693 SB over Boca Ciega Bay 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 November 2023.

How much traffic does SR-693 SB over Boca Ciega Bay carry?

About 13,500 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is SR-693 SB over Boca Ciega Bay?

The structure is 279 ft (85.1 m) long with a longest span of 56 ft (17 m) and a deck 40 ft wide.

Who owns SR-693 SB over Boca Ciega Bay?

It is owned by the State Highway Agency.