Structure 890162 · Martin County, FL

Sr-710 WB over St. Lucie Canal/sr-76

Carries Sr-710 WB over St. Lucie Canal/sr-76, 2.1 Miles East Of Cr-609.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT954 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

954 ft end to end, longest span 185 ft: about 2.6 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.

Built201412 years old
Length953.7 ft290.7 m
Daily traffic7,100counted 2024
Last inspectedJuly 2024every 24 months

Location

StateFlorida
CountyMartin
Location2.1 Miles East Of Cr-609
CarriesSr-710 WB
CrossesSt. Lucie Canal/sr-76
Coordinates27.01211, -80.45449

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length953.7 ft (290.7 m)
Max Span185.0 ft (56.4 m)
Deck Width50.5 ft (15.4 m)
Deck Area4476.8 sq m
Main Spans6
Year Built2014

Traffic

Avg Daily Traffic7,100 (2024)
Truck Traffic33%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number890162

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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