Structure 890103 · Martin County, FL

Us-441 Sr-15 over Sr-76 & St. Lucie Canal

Carries Us-441 Sr-15 over Sr-76 & St. Lucie Canal, Us-441 And Sr-76.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,460 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

2,460 ft end to end, longest span 130 ft: about 6.8 football fields. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built198343 years old
Length2460.0 ft749.8 m
Daily traffic2,800counted 2025
Last inspectedJanuary 2025every 24 months

Location

StateFlorida
CountyMartin
LocationUs-441 And Sr-76
CarriesUs-441 Sr-15
CrossesSr-76 & St. Lucie Canal
Coordinates26.98533, -80.61702

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length2460.0 ft (749.8 m)
Max Span129.9 ft (39.6 m)
Deck Width46.6 ft (14.2 m)
Deck Area10647.2 sq m
Main Spans25
Year Built1983

Traffic

Avg Daily Traffic2,800 (2025)
Truck Traffic31%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number890103

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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