US Bridges

US-92 (SR-600) over Old Tampa Bay

Fair

Hillsborough County, Florida · 2.0 Mile W of SR-618 · Structure no. 100300

Built
1975
50 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
14,860 ft
296 main spans
Daily traffic
17,750
2025 count
Owner
State
State Highway Agency

About this bridge

US-92 (SR-600) over Old Tampa Bay is a prestressed concrete stringer/multi-beam or girder carrying US-92 (SR-600) over Old Tampa Bay in Hillsborough 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 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 17,750 vehicles a day, roughly 4% of them trucks, projected to reach 30,796 by 2042. The structure is 14,860 ft (4,529.3 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesUS-92 (SR-600)
CrossesOld Tampa Bay
Location2.0 Mile W of SR-618
RouteU.S. Route 92
CountyHillsborough County
StateFlorida
Coordinates27.88477, -82.56222
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans296
Design loadHS 20 + Mod
Structure length14,860 ft (4,529.3 m)
Longest span87 ft (26.5 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,750 (2025)
Projected traffic30,796 by 2042
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 US-92 (SR-600) over Old Tampa Bay built?

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

What condition is US-92 (SR-600) over Old Tampa 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 January 2025.

How much traffic does US-92 (SR-600) over Old Tampa Bay carry?

About 17,750 vehicles per day (2025 count), of which roughly 4% are trucks.

How long is US-92 (SR-600) over Old Tampa Bay?

The structure is 14,860 ft (4,529.3 m) long with a longest span of 87 ft (26.5 m) and a deck 42 ft wide.

Who owns US-92 (SR-600) over Old Tampa Bay?

It is owned by the State Highway Agency.