US Bridges

US-441 SR-15 over SR-76 & St. Lucie Canal

Good

Martin County, Florida · US-441 and SR-76 · Structure no. 890103

Built
1983
42 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
2,460 ft
25 main spans
Daily traffic
2,800
2025 count
Owner
State
State Highway Agency

About this bridge

US-441 SR-15 over SR-76 & St. Lucie Canal is a prestressed concrete stringer/multi-beam or girder carrying US-441 SR-15 over SR-76 & St. Lucie Canal in Martin County, Florida. It was built in 1983, so it is 42 years old, older 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 2,800 vehicles a day, roughly 31% of them trucks, projected to reach 4,858 by 2044. The structure is 2,460 ft (749.8 m) long and 47 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesUS-441 SR-15
CrossesSR-76 & St. Lucie Canal
LocationUS-441 and SR-76
RouteU.S. Route 441
StateFlorida
Coordinates26.98533, -80.61702
Functional classRural Minor Arterial

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78 US tons
Inventory rating48.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans25
Design loadHS 20
Structure length2,460 ft (749.8 m)
Longest span130 ft (39.6 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2025)
Projected traffic4,858 by 2044
Trucks31%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemNo

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 US-441 SR-15 over SR-76 & St. Lucie Canal built?

It was built in 1983, making it 42 years old in 2025.

What condition is US-441 SR-15 over SR-76 & St. Lucie Canal 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 January 2025.

How much traffic does US-441 SR-15 over SR-76 & St. Lucie Canal carry?

About 2,800 vehicles per day (2025 count), of which roughly 31% are trucks.

How long is US-441 SR-15 over SR-76 & St. Lucie Canal?

The structure is 2,460 ft (749.8 m) long with a longest span of 130 ft (39.6 m) and a deck 47 ft wide.

Who owns US-441 SR-15 over SR-76 & St. Lucie Canal?

It is owned by the State Highway Agency.