US Bridges

PR-1 Ramp to PR-18 over Calle San Roberto

Good

San Juan Municipio, Puerto Rico · PR-1 KM 15.4 · Structure no. 030951

Built
2020
5 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
177 ft
3 main spans
Daily traffic
45,500
2017 count
Owner
State
State Highway Agency

About this bridge

PR-1 Ramp to PR-18 over Calle San Roberto is a prestressed concrete stringer/multi-beam or girder carrying PR-1 Ramp to PR-18 over Calle San Roberto in San Juan Municipio, Puerto Rico. It was built in 2020, so it is 5 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 45,500 vehicles a day, roughly 7% of them trucks, projected to reach 53,200 by 2025. The structure is 177 ft (53.9 m) long and 23 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesPR-1 Ramp to PR-18
CrossesCalle San Roberto
LocationPR-1 KM 15.4
RouteState Highway 1
CountySan Juan Municipio
StatePuerto Rico
Coordinates18.3739, -66.07471
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating91.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length177 ft (53.9 m)
Longest span77 ft (23.5 m)
Deck width23 ft (7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45,500 (2017)
Projected traffic53,200 by 2025
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a toll 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 PR-1 Ramp to PR-18 over Calle San Roberto built?

It was built in 2020, making it 5 years old in 2025.

What condition is PR-1 Ramp to PR-18 over Calle San Roberto 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 September 2023.

How much traffic does PR-1 Ramp to PR-18 over Calle San Roberto carry?

About 45,500 vehicles per day (2017 count), of which roughly 7% are trucks.

How long is PR-1 Ramp to PR-18 over Calle San Roberto?

The structure is 177 ft (53.9 m) long with a longest span of 77 ft (23.5 m) and a deck 23 ft wide.

Who owns PR-1 Ramp to PR-18 over Calle San Roberto?

It is owned by the State Highway Agency.