US Bridges

Pr 131 over Guilarte River

Fair

Adjuntas Municipio, Puerto Rico · 1.2 KM South Int Pr 135 · Structure no. 018321

Built
1983
42 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
79 ft
1 main span
Daily traffic
500
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 131 over Guilarte River is a prestressed concrete stringer/multi-beam or girder carrying Pr 131 over Guilarte River in Adjuntas Municipio, Puerto Rico. It was built in 1983, so it is 42 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 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.

It carries about 500 vehicles a day, roughly 4% of them trucks, projected to reach 700 by 2025. The structure is 79 ft (24 m) long and 34 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

Open in Google Maps
CarriesPr 131
CrossesGuilarte River
Location1.2 KM South Int Pr 135
RouteState Highway 131
CountyAdjuntas Municipio
StatePuerto Rico
Coordinates18.18113, -66.7691
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating77.1 US tons
Inventory rating31.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length79 ft (24 m)
Longest span66 ft (20.2 m)
Deck width34 ft (10.3 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2017)
Projected traffic700 by 2025
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed7.5 mi (12 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 131 over Guilarte River built?

It was built in 1983, making it 42 years old in 2025.

What condition is Pr 131 over Guilarte 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 February 2025.

How much traffic does Pr 131 over Guilarte River carry?

About 500 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is Pr 131 over Guilarte River?

The structure is 79 ft (24 m) long with a longest span of 66 ft (20.2 m) and a deck 34 ft wide.

Who owns Pr 131 over Guilarte River?

It is owned by the State Highway Agency.