US Bridges

Rmp 18 SB 21 WB over Ramp PR-21 Centro Medico

Good

San Juan Municipio, Puerto Rico · Ramp 18 SB 21 WB · Structure no. 030691

Built
2018
7 years old
Condition
Good
inspected May 2023
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
198 ft
3 main spans
Daily traffic
239,000
2017 count
Owner
State
State Highway Agency

About this bridge

Rmp 18 SB 21 WB over Ramp PR-21 Centro Medico is a prestressed concrete continuous segmental box girder carrying Rmp 18 SB 21 WB over Ramp PR-21 Centro Medico in San Juan Municipio, Puerto Rico. It was built in 2018, so it is 7 years old, younger than the Puerto Rico average of 51.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 239,000 vehicles a day, roughly 1% of them trucks, projected to reach 272,500 by 2025. The structure is 198 ft (60.4 m) long and 27 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRmp 18 SB 21 WB
CrossesRamp PR-21 Centro Medico
LocationRamp 18 SB 21 WB
RouteState Highway 0RAMP
Coordinates18.38944, -66.0727
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.9 US tons
Inventory rating38.5 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length198 ft (60.4 m)
Longest span79 ft (24.1 m)
Deck width27 ft (8.1 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic239,000 (2017)
Projected traffic272,500 by 2025
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed0.6 mi (1 km)
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Rmp 18 SB 21 WB over Ramp PR-21 Centro Medico built?

It was built in 2018, making it 7 years old in 2025.

What condition is Rmp 18 SB 21 WB over Ramp PR-21 Centro Medico in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Rmp 18 SB 21 WB over Ramp PR-21 Centro Medico carry?

About 239,000 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Rmp 18 SB 21 WB over Ramp PR-21 Centro Medico?

The structure is 198 ft (60.4 m) long with a longest span of 79 ft (24.1 m) and a deck 27 ft wide.

Who owns Rmp 18 SB 21 WB over Ramp PR-21 Centro Medico?

It is owned by the State Highway Agency.