US Bridges

Pr 1 15.4 KM over San Roberto Street

PoorPosted for load

San Juan Municipio, Puerto Rico · 4 KM S W of Rio Piedras · Structure no. 009542

Built
1967
58 years old
Condition
Poor
inspected February 2024
Type
Tee Beam
Concrete Continuous
Length
170 ft
3 main spans
Daily traffic
22,750
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 1 15.4 KM over San Roberto Street is a concrete continuous tee beam carrying Pr 1 15.4 KM over San Roberto Street 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 22,750 vehicles a day, roughly 7% of them trucks, projected to reach 26,600 by 2025. The structure is 170 ft (51.7 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesPr 1 15.4 KM
CrossesSan Roberto Street
Location4 KM S W of Rio Piedras
RouteState Highway 1
CountySan Juan Municipio
StatePuerto Rico
Coordinates18.37391, -66.07483
Functional classUrban Other Principal Arterial

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.6 US tons
Inventory rating23.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length170 ft (51.7 m)
Longest span75 ft (22.9 m)
Deck width44 ft (13.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,750 (2017)
Projected traffic26,600 by 2025
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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$438,000 (2018 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pr 1 15.4 KM over San Roberto Street built?

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

What condition is Pr 1 15.4 KM over San Roberto Street 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 February 2024.

How much traffic does Pr 1 15.4 KM over San Roberto Street carry?

About 22,750 vehicles per day (2017 count), of which roughly 7% are trucks.

How long is Pr 1 15.4 KM over San Roberto Street?

The structure is 170 ft (51.7 m) long with a longest span of 75 ft (22.9 m) and a deck 44 ft wide.

Who owns Pr 1 15.4 KM over San Roberto Street?

It is owned by the State Highway Agency.