US Bridges

Pr 52 Southbound over Pr 177 8.4 KM

Poor

San Juan Municipio, Puerto Rico · 2.1 MI S W of Rio Piedras · Structure no. 012512

Built
1979
46 years old
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
206 ft
2 main spans
Daily traffic
76,650
2017 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pr 52 Southbound over Pr 177 8.4 KM is a prestressed concrete stringer/multi-beam or girder carrying Pr 52 Southbound over Pr 177 8.4 KM in San Juan Municipio, Puerto Rico. It was built in 1979, so it is 46 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 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.

It carries about 76,650 vehicles a day, roughly 5% of them trucks, projected to reach 87,400 by 2025. The structure is 206 ft (62.7 m) long and 95 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesPr 52 Southbound
CrossesPr 177 8.4 KM
Location2.1 MI S W of Rio Piedras
RouteInterstate 52
CountySan Juan Municipio
StatePuerto Rico
Coordinates18.37062, -66.07034
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101.9 US tons
Inventory rating62.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length206 ft (62.7 m)
Longest span98 ft (29.8 m)
Deck width95 ft (28.9 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic76,650 (2017)
Projected traffic87,400 by 2025
Trucks5%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$761,000 (2018 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pr 52 Southbound over Pr 177 8.4 KM built?

It was built in 1979, making it 46 years old in 2025.

What condition is Pr 52 Southbound over Pr 177 8.4 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 August 2024.

How much traffic does Pr 52 Southbound over Pr 177 8.4 KM carry?

About 76,650 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Pr 52 Southbound over Pr 177 8.4 KM?

The structure is 206 ft (62.7 m) long with a longest span of 98 ft (29.8 m) and a deck 95 ft wide.

Who owns Pr 52 Southbound over Pr 177 8.4 KM?

It is owned by the State Toll Authority.