Structure 12571 · San Juan Municipio County, PR

Pr 1 over Pr 18 (las Americas Exp)

Carries Pr 1 over Pr 18 (las Americas Exp), 6 Km S W Of Rio Piedras.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT388 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 6/9Substructure 6/9

388 ft end to end, longest span 78 ft: about 5 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 tee-beam bridge.

Built197749 years old
Length388.5 ft118.4 m
Daily traffic45,500counted 2017
Last inspectedMarch 2025every 12 months

Location

StatePuerto Rico
CountySan Juan Municipio
Location6 Km S W Of Rio Piedras
CarriesPr 1
CrossesPr 18 (las Americas Exp)
Coordinates18.37854, -66.07109

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length388.5 ft (118.4 m)
Max Span78.1 ft (23.8 m)
Deck Width58.7 ft (17.9 m)
Deck Area2119.4 sq m
Main Spans6
Year Built1977

Traffic

Avg Daily Traffic45,500 (2017)
Truck Traffic4%
Lanes On Bridge3
Lanes Under Bridge5

Inspection & Ownership

Last InspectionMarch 2025
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number012571

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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