US Bridges

Pr 18 3.35 KM over Ave. Amer Miranda 1.4 KM

PoorPosted for load

San Juan Municipio, Puerto Rico · At Sj Med Center Entrance · Structure no. 010051

Built
1967
58 years old
Condition
Poor
inspected December 2024
Type
Tee Beam
Concrete Continuous
Length
246 ft
4 main spans
Daily traffic
261,400
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 18 3.35 KM over Ave. Amer Miranda 1.4 KM is a concrete continuous tee beam carrying Pr 18 3.35 KM over Ave. Amer Miranda 1.4 KM in San Juan Municipio, Puerto Rico. It was built in 1967, so it is 58 years old, older than the Puerto Rico average of 51.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 261,400 vehicles a day, roughly 3% of them trucks, projected to reach 298,000 by 2025. The structure is 246 ft (75.1 m) long and 92 ft wide.

Location

Open in Google Maps
CarriesPr 18 3.35 KM
CrossesAve. Amer Miranda 1.4 KM
LocationAt Sj Med Center Entrance
RouteCity Street 0
CountySan Juan Municipio
StatePuerto Rico
Coordinates18.39945, -66.07101
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.9 US tons
Inventory rating22.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length246 ft (75.1 m)
Longest span72 ft (21.9 m)
Deck width92 ft (27.9 m)
Roadway width78 ft (23.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic261,400 (2017)
Projected traffic298,000 by 2025
Trucks3%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pr 18 3.35 KM over Ave. Amer Miranda 1.4 KM built?

It was built in 1967, making it 58 years old in 2025.

What condition is Pr 18 3.35 KM over Ave. Amer Miranda 1.4 KM in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does Pr 18 3.35 KM over Ave. Amer Miranda 1.4 KM carry?

About 261,400 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Pr 18 3.35 KM over Ave. Amer Miranda 1.4 KM?

The structure is 246 ft (75.1 m) long with a longest span of 72 ft (21.9 m) and a deck 92 ft wide.

Who owns Pr 18 3.35 KM over Ave. Amer Miranda 1.4 KM?

It is owned by the State Highway Agency.