US Bridges

I-275 NB to I-375 over ST Pete Maint Yard

Good

Pinellas County, Florida · I-275 & I-375 Interchange · Structure no. 150123

Built
1977
48 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,010 ft
11 main spans
Daily traffic
4,400
2023 count
Owner
State
State Highway Agency

About this bridge

I-275 NB to I-375 over ST Pete Maint Yard is a prestressed concrete stringer/multi-beam or girder carrying I-275 NB to I-375 over ST Pete Maint Yard in Pinellas County, Florida. It was built in 1977, so it is 48 years old, older 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 4,400 vehicles a day, roughly 7% of them trucks, projected to reach 7,634 by 2042. The structure is 1,010 ft (307.9 m) long and 30 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-275 NB to I-375
CrossesST Pete Maint Yard
LocationI-275 & I-375 Interchange
RouteInterstate 275
CountyPinellas County
StateFlorida
Coordinates27.77583, -82.65792
Functional classUrban Principal Arterial - Interstate

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.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating68 US tons
Inventory rating57 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20 + Mod
Structure length1,010 ft (307.9 m)
Longest span99 ft (30.2 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,400 (2023)
Projected traffic7,634 by 2042
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesOther
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-275 NB to I-375 over ST Pete Maint Yard built?

It was built in 1977, making it 48 years old in 2025.

What condition is I-275 NB to I-375 over ST Pete Maint Yard 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 October 2023.

How much traffic does I-275 NB to I-375 over ST Pete Maint Yard carry?

About 4,400 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is I-275 NB to I-375 over ST Pete Maint Yard?

The structure is 1,010 ft (307.9 m) long with a longest span of 99 ft (30.2 m) and a deck 30 ft wide.

Who owns I-275 NB to I-375 over ST Pete Maint Yard?

It is owned by the State Highway Agency.