US Bridges

SR618 Selmon WB over Platt Street

Good

Hillsborough County, Florida · 3.9MI North of Gandy Blvd · Structure no. 100324

Built
1975
50 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
214 ft
3 main spans
Daily traffic
28,750
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR618 Selmon WB over Platt Street is a prestressed concrete stringer/multi-beam or girder carrying SR618 Selmon WB over Platt Street in Hillsborough County, Florida. It was built in 1975, 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 28,750 vehicles a day, roughly 8% of them trucks, projected to reach 49,881 by 2044. The structure is 214 ft (65.2 m) long and 54 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR618 Selmon WB
CrossesPlatt Street
Location3.9MI North of Gandy Blvd
RouteState Highway 618
StateFlorida
Coordinates27.94178, -82.47497
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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length214 ft (65.2 m)
Longest span93 ft (28.4 m)
Deck width54 ft (16.4 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,750 (2022)
Projected traffic49,881 by 2044
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 WB over Platt Street built?

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

What condition is SR618 Selmon WB over Platt Street 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 SR618 Selmon WB over Platt Street carry?

About 28,750 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is SR618 Selmon WB over Platt Street?

The structure is 214 ft (65.2 m) long with a longest span of 93 ft (28.4 m) and a deck 54 ft wide.

Who owns SR618 Selmon WB over Platt Street?

It is owned by the State Toll Authority.