US Bridges

NB I-95 (SR-9) over SR-91 (fl Tpk)

Fair

St. Lucie County, Florida · 1.5 Mi. S of SR-70 · Structure no. 940127

Built
1982
43 years old, rebuilt 2005
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
208 ft
2 main spans
Daily traffic
37,133
2023 count
Owner
State
State Highway Agency

About this bridge

NB I-95 (SR-9) over SR-91 (fl Tpk) is a prestressed concrete stringer/multi-beam or girder carrying NB I-95 (SR-9) over SR-91 (fl Tpk) in St. Lucie County, Florida. It was built in 1982 and reconstructed in 2005, 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 37,133 vehicles a day, roughly 16% of them trucks, projected to reach 64,426 by 2045. The structure is 208 ft (63.4 m) long and 59 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesNB I-95 (SR-9)
CrossesSR-91 (fl Tpk)
Location1.5 Mi. S of SR-70
RouteInterstate 95
CountySt. Lucie County
StateFlorida
Coordinates27.39548, -80.39421
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating64.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length208 ft (63.4 m)
Longest span104 ft (31.7 m)
Deck width59 ft (17.9 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,133 (2023)
Projected traffic64,426 by 2045
Trucks16%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
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 NB I-95 (SR-9) over SR-91 (fl Tpk) built?

It was built in 1982, making it 43 years old in 2025. It was reconstructed in 2005.

What condition is NB I-95 (SR-9) over SR-91 (fl Tpk) 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 NB I-95 (SR-9) over SR-91 (fl Tpk) carry?

About 37,133 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is NB I-95 (SR-9) over SR-91 (fl Tpk)?

The structure is 208 ft (63.4 m) long with a longest span of 104 ft (31.7 m) and a deck 59 ft wide.

Who owns NB I-95 (SR-9) over SR-91 (fl Tpk)?

It is owned by the State Highway Agency.