US Bridges

SB I-95 (SR-9) over Gatlin Blvd

Fair

St. Lucie County, Florida · 4.3 M N of Martin CO Line · Structure no. 940108

Built
1982
43 years old, rebuilt 2017
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
228 ft
4 main spans
Daily traffic
49,750
2023 count
Owner
State
State Highway Agency

About this bridge

SB I-95 (SR-9) over Gatlin Blvd is a prestressed concrete stringer/multi-beam or girder carrying SB I-95 (SR-9) over Gatlin Blvd in St. Lucie County, Florida. It was built in 1982 and reconstructed in 2017, so it is 43 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 49,750 vehicles a day, roughly 11% of them trucks, projected to reach 86,317 by 2045. The structure is 228 ft (69.5 m) long and 60 ft wide.

Location

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CarriesSB I-95 (SR-9)
CrossesGatlin Blvd
Location4.3 M N of Martin CO Line
RouteInterstate 95
CountySt. Lucie County
StateFlorida
Coordinates27.26438, -80.42231
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.8 US tons
Inventory rating41.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length228 ft (69.5 m)
Longest span80 ft (24.5 m)
Deck width60 ft (18.3 m)
Roadway width57 ft (17.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49,750 (2023)
Projected traffic86,317 by 2045
Trucks11%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
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 SB I-95 (SR-9) over Gatlin Blvd built?

It was built in 1982, making it 43 years old in 2025. It was reconstructed in 2017.

What condition is SB I-95 (SR-9) over Gatlin Blvd 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 November 2024.

How much traffic does SB I-95 (SR-9) over Gatlin Blvd carry?

About 49,750 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is SB I-95 (SR-9) over Gatlin Blvd?

The structure is 228 ft (69.5 m) long with a longest span of 80 ft (24.5 m) and a deck 60 ft wide.

Who owns SB I-95 (SR-9) over Gatlin Blvd?

It is owned by the State Highway Agency.