US Bridges

SR618A Selmon Expy over I-75 (SR-93A)

Good

Hillsborough County, Florida · 1.2 MI E/O US-301 · Structure no. 100812

Built
2004
21 years old
Condition
Good
inspected August 2024
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
3,252 ft
24 main spans
Daily traffic
14,000
2024 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR618A Selmon Expy over I-75 (SR-93A) is a prestressed concrete continuous segmental box girder carrying SR618A Selmon Expy over I-75 (SR-93A) in Hillsborough County, Florida. It was built in 2004, so it is 21 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 14,000 vehicles a day, roughly 2% of them trucks, projected to reach 24,220 by 2044. The structure is 3,252 ft (991.2 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR618A Selmon Expy
CrossesI-75 (SR-93A)
Location1.2 MI E/O US-301
RouteState Highway 618
CountyHillsborough County
StateFlorida
Coordinates27.92772, -82.33142
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
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 alignment7: Better than present minimum criteria
Operating rating74.8 US tons
Inventory rating36 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans24
Design loadHS 20 + Mod
Structure length3,252 ft (991.2 m)
Longest span142 ft (43.2 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic14,000 (2024)
Projected traffic24,220 by 2044
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed3.1 mi (5 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 SR618A Selmon Expy over I-75 (SR-93A) built?

It was built in 2004, making it 21 years old in 2025.

What condition is SR618A Selmon Expy over I-75 (SR-93A) 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 August 2024.

How much traffic does SR618A Selmon Expy over I-75 (SR-93A) carry?

About 14,000 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is SR618A Selmon Expy over I-75 (SR-93A)?

The structure is 3,252 ft (991.2 m) long with a longest span of 142 ft (43.2 m) and a deck 47 ft wide.

Who owns SR618A Selmon Expy over I-75 (SR-93A)?

It is owned by the State Toll Authority.