US Bridges

WB Prt ST Lucie Bd over N Fork St. Lucie River

Fair

St. Lucie County, Florida · 2MI. East of SR-91 · Structure no. 940145

Built
1993
32 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
417 ft
5 main spans
Daily traffic
25,500
2024 count
Owner
State
State Highway Agency

About this bridge

WB Prt ST Lucie Bd over N Fork St. Lucie River is a prestressed concrete stringer/multi-beam or girder carrying WB Prt ST Lucie Bd over N Fork St. Lucie River in St. Lucie County, Florida. It was built in 1993, so it is 32 years old, younger 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 25,500 vehicles a day, roughly 5% of them trucks, projected to reach 44,242 by 2044. The structure is 417 ft (127.1 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWB Prt ST Lucie Bd
CrossesN Fork St. Lucie River
Location2MI. East of SR-91
RouteState Highway 716
StateFlorida
Coordinates27.27182, -80.32222
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating52.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length417 ft (127.1 m)
Longest span90 ft (27.4 m)
Deck width53 ft (16.2 m)
Roadway width50 ft (15.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,500 (2024)
Projected traffic44,242 by 2044
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was WB Prt ST Lucie Bd over N Fork St. Lucie River built?

It was built in 1993, making it 32 years old in 2025.

What condition is WB Prt ST Lucie Bd over N Fork St. Lucie River 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 October 2024.

How much traffic does WB Prt ST Lucie Bd over N Fork St. Lucie River carry?

About 25,500 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is WB Prt ST Lucie Bd over N Fork St. Lucie River?

The structure is 417 ft (127.1 m) long with a longest span of 90 ft (27.4 m) and a deck 53 ft wide.

Who owns WB Prt ST Lucie Bd over N Fork St. Lucie River?

It is owned by the State Highway Agency.