US Bridges

Pr 512 over Guayo River

Fair

Juana Diaz Municipio, Puerto Rico · 6.5 Mile NW of Juana Diaz · Structure no. 008221

Built
1961
64 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete Continuous
Length
99 ft
3 main spans
Daily traffic
4,200
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 512 over Guayo River is a concrete continuous slab carrying Pr 512 over Guayo River in Juana Diaz Municipio, Puerto Rico. It was built in 1961, so it is 64 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: open, posting recommended but not legally implemented.

It carries about 4,200 vehicles a day, roughly 5% of them trucks, projected to reach 5,400 by 2025. The structure is 99 ft (30.2 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesPr 512
CrossesGuayo River
Location6.5 Mile NW of Juana Diaz
RouteState Highway 512
CountyJuana Diaz Municipio
StatePuerto Rico
Coordinates18.10706, -66.53916
Functional classRural Minor Collector

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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, posting recommended but not legally implemented
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27.3 US tons
Inventory rating21.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length99 ft (30.2 m)
Longest span39 ft (12 m)
Deck width28 ft (8.6 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,200 (2017)
Projected traffic5,400 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$78,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 512 over Guayo River built?

It was built in 1961, making it 64 years old in 2025.

What condition is Pr 512 over Guayo 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 September 2023.

How much traffic does Pr 512 over Guayo River carry?

About 4,200 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Pr 512 over Guayo River?

The structure is 99 ft (30.2 m) long with a longest span of 39 ft (12 m) and a deck 28 ft wide.

Who owns Pr 512 over Guayo River?

It is owned by the State Highway Agency.