US Bridges

NB I-95 (SR-9) over SR-76

Good

Martin County, Florida · South of St. Lucie Canal · Structure no. 890128

Built
1987
38 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
212 ft
3 main spans
Daily traffic
51,500
2022 count
Owner
State
State Highway Agency

About this bridge

NB I-95 (SR-9) over SR-76 is a prestressed concrete stringer/multi-beam or girder carrying NB I-95 (SR-9) over SR-76 in Martin County, Florida. It was built in 1987, so it is 38 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 51,500 vehicles a day, roughly 11% of them trucks, projected to reach 89,352 by 2044. The structure is 212 ft (64.5 m) long and 59 ft wide.

Location

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CarriesNB I-95 (SR-9)
CrossesSR-76
LocationSouth of St. Lucie Canal
RouteInterstate 95
CountyMartin County
StateFlorida
Coordinates27.10865, -80.26012
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionFebruary 2025
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 rating73 US tons
Inventory rating52.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length212 ft (64.5 m)
Longest span141 ft (42.9 m)
Deck width59 ft (17.9 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51,500 (2022)
Projected traffic89,352 by 2044
Trucks11%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 NB I-95 (SR-9) over SR-76 built?

It was built in 1987, making it 38 years old in 2025.

What condition is NB I-95 (SR-9) over SR-76 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 February 2025.

How much traffic does NB I-95 (SR-9) over SR-76 carry?

About 51,500 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is NB I-95 (SR-9) over SR-76?

The structure is 212 ft (64.5 m) long with a longest span of 141 ft (42.9 m) and a deck 59 ft wide.

Who owns NB I-95 (SR-9) over SR-76?

It is owned by the State Highway Agency.