US Bridges

Pr 1 over LA Plata River

FairPosted for load

Cayey Municipio, Puerto Rico · 4.5 KM Northeast of Cayey · Structure no. 000131

Built
1949
76 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
252 ft
4 main spans
Daily traffic
14,900
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 1 over LA Plata River is a concrete continuous tee beam carrying Pr 1 over LA Plata River in Cayey Municipio, Puerto Rico. It was built in 1949, so it is 76 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 14,900 vehicles a day, roughly 5% of them trucks, projected to reach 17,900 by 2025. The structure is 252 ft (76.9 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesPr 1
CrossesLA Plata River
Location4.5 KM Northeast of Cayey
RouteState Highway 1
CountyCayey Municipio
StatePuerto Rico
Coordinates18.13263, -66.129
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating24.8 US tons
Inventory rating19.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length252 ft (76.9 m)
Longest span72 ft (22 m)
Deck width34 ft (10.3 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,900 (2017)
Projected traffic17,900 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.7 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 1 over LA Plata River built?

It was built in 1949, making it 76 years old in 2025.

What condition is Pr 1 over LA Plata River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Pr 1 over LA Plata River carry?

About 14,900 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Pr 1 over LA Plata River?

The structure is 252 ft (76.9 m) long with a longest span of 72 ft (22 m) and a deck 34 ft wide.

Who owns Pr 1 over LA Plata River?

It is owned by the State Highway Agency.