US Bridges

SR-693 NB over Boca Ciega Bay

Fair

Pinellas County, Florida · 0.5 MI N of SR-699 · Structure no. 150136

Built
1975
50 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
282 ft
6 main spans
Daily traffic
27,000
2023 count
Owner
State
State Highway Agency

About this bridge

SR-693 NB over Boca Ciega Bay is a prestressed concrete stringer/multi-beam or girder carrying SR-693 NB over Boca Ciega Bay in Pinellas 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 27,000 vehicles a day, roughly 3% of them trucks, projected to reach 46,845 by 2042. The structure is 282 ft (86 m) long and 39 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR-693 NB
CrossesBoca Ciega Bay
Location0.5 MI N of SR-699
RouteState Highway 693
CountyPinellas County
StateFlorida
Coordinates27.74918, -82.74455
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating57 US tons
Inventory rating49.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length282 ft (86 m)
Longest span47 ft (14.3 m)
Deck width39 ft (12 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,000 (2023)
Projected traffic46,845 by 2042
Trucks3%
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 NB over Boca Ciega Bay built?

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

What condition is SR-693 NB 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 NB over Boca Ciega Bay carry?

About 27,000 vehicles per day (2023 count), of which roughly 3% are trucks.

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

The structure is 282 ft (86 m) long with a longest span of 47 ft (14.3 m) and a deck 39 ft wide.

Who owns SR-693 NB over Boca Ciega Bay?

It is owned by the State Highway Agency.