US Bridges

SR-618 Selmon WB over US-92 SR-600 Dale Mabry

Good

Hillsborough County, Florida · 0.2MI N/O Gandy Blvd · Structure no. 100306

Built
1975
50 years old, rebuilt 2020
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
364 ft
4 main spans
Daily traffic
19,750
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR-618 Selmon WB over US-92 SR-600 Dale Mabry is a prestressed concrete stringer/multi-beam or girder carrying SR-618 Selmon WB over US-92 SR-600 Dale Mabry in Hillsborough County, Florida. It was built in 1975 and reconstructed in 2020, so it is 50 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 19,750 vehicles a day, roughly 9% of them trucks, projected to reach 34,266 by 2044. The structure is 364 ft (110.8 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR-618 Selmon WB
CrossesUS-92 SR-600 Dale Mabry
Location0.2MI N/O Gandy Blvd
RouteState Highway 618
CountyHillsborough County
StateFlorida
Coordinates27.89638, -82.50629
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 inspectionJuly 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 alignment8: Equal to present desirable criteria
Operating rating60.5 US tons
Inventory rating37.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length364 ft (110.8 m)
Longest span106 ft (32.3 m)
Deck width66 ft (20.1 m)
Roadway width63 ft (19.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,750 (2022)
Projected traffic34,266 by 2044
Trucks9%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR-618 Selmon WB over US-92 SR-600 Dale Mabry built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2020.

What condition is SR-618 Selmon WB over US-92 SR-600 Dale Mabry 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 July 2023.

How much traffic does SR-618 Selmon WB over US-92 SR-600 Dale Mabry carry?

About 19,750 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is SR-618 Selmon WB over US-92 SR-600 Dale Mabry?

The structure is 364 ft (110.8 m) long with a longest span of 106 ft (32.3 m) and a deck 66 ft wide.

Who owns SR-618 Selmon WB over US-92 SR-600 Dale Mabry?

It is owned by the State Toll Authority.