US Bridges

I-4 WB over 34th Street

Good

Hillsborough County, Florida · 1.1MI West of US-41 · Structure no. 100664

Built
2006
19 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
98 ft
1 main span
Daily traffic
83,250
2024 count
Owner
State
State Highway Agency

About this bridge

I-4 WB over 34th Street is a prestressed concrete box beam or girders - single or spread carrying I-4 WB over 34th Street in Hillsborough County, Florida. It was built in 2006, so it is 19 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 83,250 vehicles a day, roughly 10% of them trucks, projected to reach 144,439 by 2044. The structure is 98 ft (30 m) long and 100 ft wide.

CarriesI-4 WB
Crosses34th Street
Location1.1MI West of US-41
RouteInterstate 4
StateFlorida
Coordinates27.96544, -82.42238
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.9 US tons
Inventory rating43.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length98 ft (30 m)
Longest span98 ft (30 m)
Deck width100 ft (30.5 m)
Roadway width97 ft (29.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic83,250 (2024)
Projected traffic144,439 by 2044
Trucks10%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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-4 WB over 34th Street built?

It was built in 2006, making it 19 years old in 2025.

What condition is I-4 WB over 34th Street 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 June 2024.

How much traffic does I-4 WB over 34th Street carry?

About 83,250 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is I-4 WB over 34th Street?

The structure is 98 ft (30 m) long with a longest span of 98 ft (30 m) and a deck 100 ft wide.

Who owns I-4 WB over 34th Street?

It is owned by the State Highway Agency.