US Bridges

SR-618EB to I-75NB over I-75 (SR-93A)

Fair

Hillsborough County, Florida · 0.9MI South of SR-60 · Structure no. 100487

Built
1985
40 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
508 ft
4 main spans
Daily traffic
25,750
2023 count
Owner
State
State Highway Agency

About this bridge

SR-618EB to I-75NB over I-75 (SR-93A) is a prestressed concrete stringer/multi-beam or girder carrying SR-618EB to I-75NB over I-75 (SR-93A) in Hillsborough County, Florida. It was built in 1985, so it is 40 years old, younger 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 25,750 vehicles a day, roughly 8% of them trucks, projected to reach 44,676 by 2042. The structure is 508 ft (154.8 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesSR-618EB to I-75NB
CrossesI-75 (SR-93A)
Location0.9MI South of SR-60
RouteState Highway 618
CountyHillsborough County
StateFlorida
Coordinates27.92754, -82.33148
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.1 US tons
Inventory rating55.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length508 ft (154.8 m)
Longest span133 ft (40.5 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,750 (2023)
Projected traffic44,676 by 2042
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

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 SR-618EB to I-75NB over I-75 (SR-93A) built?

It was built in 1985, making it 40 years old in 2025.

What condition is SR-618EB to I-75NB over I-75 (SR-93A) 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 October 2023.

How much traffic does SR-618EB to I-75NB over I-75 (SR-93A) carry?

About 25,750 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is SR-618EB to I-75NB over I-75 (SR-93A)?

The structure is 508 ft (154.8 m) long with a longest span of 133 ft (40.5 m) and a deck 30 ft wide.

Who owns SR-618EB to I-75NB over I-75 (SR-93A)?

It is owned by the State Highway Agency.