US Bridges

SR-618 Selmon EB over Mckay Bay Greenway

Good

Hillsborough County, Florida · 0.8 MI W/O US-41 · Structure no. 100805

Built
2005
20 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
175 ft
3 main spans
Daily traffic
45,500
2024 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR-618 Selmon EB over Mckay Bay Greenway is a prestressed concrete stringer/multi-beam or girder carrying SR-618 Selmon EB over Mckay Bay Greenway in Hillsborough County, Florida. It was built in 2005, so it is 20 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 45,500 vehicles a day, roughly 6% of them trucks, projected to reach 78,715 by 2044. The structure is 175 ft (53.3 m) long and 47 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR-618 Selmon EB
CrossesMckay Bay Greenway
Location0.8 MI W/O US-41
StateFlorida
Coordinates27.95428, -82.41554
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 inspectionAugust 2024
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 rating73.6 US tons
Inventory rating44.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length175 ft (53.3 m)
Longest span89 ft (27.1 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45,500 (2024)
Projected traffic78,715 by 2044
Trucks6%
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 SR-618 Selmon EB over Mckay Bay Greenway built?

It was built in 2005, making it 20 years old in 2025.

What condition is SR-618 Selmon EB over Mckay Bay Greenway 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 SR-618 Selmon EB over Mckay Bay Greenway carry?

About 45,500 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is SR-618 Selmon EB over Mckay Bay Greenway?

The structure is 175 ft (53.3 m) long with a longest span of 89 ft (27.1 m) and a deck 47 ft wide.

Who owns SR-618 Selmon EB over Mckay Bay Greenway?

It is owned by the State Toll Authority.