US Bridges

SR-679 over Boca Ciega Bay

Good

Pinellas County, Florida · 1.2 Miles S of SR-682 · Structure no. 150307

Built
2021
4 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
2,583 ft
17 main spans
Daily traffic
17,300
2025 count
Owner
State
State Highway Agency

About this bridge

SR-679 over Boca Ciega Bay is a prestressed concrete stringer/multi-beam or girder carrying SR-679 over Boca Ciega Bay in Pinellas County, Florida. It was built in 2021, so it is 4 years old, younger 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 17,300 vehicles a day, roughly 3% of them trucks, projected to reach 21,625 by 2046. The structure is 2,583 ft (787.3 m) long and 67 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesSR-679
CrossesBoca Ciega Bay
Location1.2 Miles S of SR-682
CountyPinellas County
StateFlorida
Coordinates27.69347, -82.71789
Functional classUrban Minor Arterial

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 protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.8 US tons
Inventory rating42.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans17
Design loadHL 93
Structure length2,583 ft (787.3 m)
Longest span153 ft (46.6 m)
Deck width67 ft (20.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic17,300 (2025)
Projected traffic21,625 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a toll 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was SR-679 over Boca Ciega Bay built?

It was built in 2021, making it 4 years old in 2025.

What condition is SR-679 over Boca Ciega Bay 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 January 2025.

How much traffic does SR-679 over Boca Ciega Bay carry?

About 17,300 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is SR-679 over Boca Ciega Bay?

The structure is 2,583 ft (787.3 m) long with a longest span of 153 ft (46.6 m) and a deck 67 ft wide.

Who owns SR-679 over Boca Ciega Bay?

It is owned by the State Highway Agency.