US Bridges

SR618 WB to I-4 WB over CSX RR SR 60 & 34th ST

Good

Hillsborough County, Florida · SR-618 WB Off-Ramp · Structure no. 100721

Built
2013
12 years old
Condition
Good
inspected December 2023
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
1,983 ft
11 main spans
Daily traffic
17,900
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR618 WB to I-4 WB over CSX RR SR 60 & 34th ST is a prestressed concrete continuous segmental box girder carrying SR618 WB to I-4 WB over CSX RR SR 60 & 34th ST in Hillsborough County, Florida. It was built in 2013, so it is 12 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 17,900 vehicles a day, roughly 11% of them trucks, projected to reach 31,056 by 2042. The structure is 1,983 ft (604.4 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR618 WB to I-4 WB
CrossesCSX RR SR 60 & 34th ST
LocationSR-618 WB Off-Ramp
RouteState Highway 400
StateFlorida
Coordinates27.95446, -82.42476
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating36 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHL 93
Structure length1,983 ft (604.4 m)
Longest span252 ft (76.7 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,900 (2023)
Projected traffic31,056 by 2042
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway, waterway and railroad
Detour if closed1.9 mi (3 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
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 SR618 WB to I-4 WB over CSX RR SR 60 & 34th ST built?

It was built in 2013, making it 12 years old in 2025.

What condition is SR618 WB to I-4 WB over CSX RR SR 60 & 34th ST 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 December 2023.

How much traffic does SR618 WB to I-4 WB over CSX RR SR 60 & 34th ST carry?

About 17,900 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is SR618 WB to I-4 WB over CSX RR SR 60 & 34th ST?

The structure is 1,983 ft (604.4 m) long with a longest span of 252 ft (76.7 m) and a deck 43 ft wide.

Who owns SR618 WB to I-4 WB over CSX RR SR 60 & 34th ST?

It is owned by the State Toll Authority and maintained by the State Highway Agency.