US Bridges

SR618 Selmon EB over Macdill & Bay to Bay Blv

Fair

Hillsborough County, Florida · 1.9MI E/O Gandy Blvd. · Structure no. 100315

Built
1976
49 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
809 ft
2 main spans
Daily traffic
24,500
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR618 Selmon EB over Macdill & Bay to Bay Blv is a steel continuous stringer/multi-beam or girder carrying SR618 Selmon EB over Macdill & Bay to Bay Blv in Hillsborough County, Florida. It was built in 1976, so it is 49 years old, older 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 6 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 24,500 vehicles a day, roughly 7% of them trucks, projected to reach 42,508 by 2044. The structure is 809 ft (246.7 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR618 Selmon EB
CrossesMacdill & Bay to Bay Blv
Location1.9MI E/O Gandy Blvd.
RouteState Highway 618
CountyHillsborough County
StateFlorida
Coordinates27.91962, -82.49275
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.5 US tons
Inventory rating41.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+8 approach)
Design loadHS 20 + Mod
Structure length809 ft (246.7 m)
Longest span139 ft (42.4 m)
Deck width40 ft (12.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,500 (2022)
Projected traffic42,508 by 2044
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 SR618 Selmon EB over Macdill & Bay to Bay Blv built?

It was built in 1976, making it 49 years old in 2025.

What condition is SR618 Selmon EB over Macdill & Bay to Bay Blv 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 July 2023.

How much traffic does SR618 Selmon EB over Macdill & Bay to Bay Blv carry?

About 24,500 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is SR618 Selmon EB over Macdill & Bay to Bay Blv?

The structure is 809 ft (246.7 m) long with a longest span of 139 ft (42.4 m) and a deck 40 ft wide.

Who owns SR618 Selmon EB over Macdill & Bay to Bay Blv?

It is owned by the State Toll Authority.