Structure 940134 · St. Lucie County, FL

SR 91 Tpk SB 153.2 over SR 70

Carries SR 91 Tpk SB 153.2 over SR 70, 2.6 Miles North Of Sr-709.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT210 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

210 ft end to end, longest span 118 ft: about 3 semi-trucks nose to tail. 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.

Built199135 years old
Length210.0 ft64 m
Daily traffic23,450counted 2022
Last inspectedDecember 2023every 24 months

Location

StateFlorida
CountySt. Lucie
Location2.6 Miles North Of Sr-709
CarriesSR 91 Tpk SB 153.2
CrossesSR 70
Coordinates27.41236, -80.40202

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length210.0 ft (64 m)
Max Span118.1 ft (36 m)
Deck Width55.8 ft (17 m)
Deck Area1,088 sq m
Main Spans3
Year Built1991

Traffic

Avg Daily Traffic23,450 (2022)
Truck Traffic20%
Lanes On Bridge3
Lanes Under Bridge5

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number940134

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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