US Bridges

Pr 374R over Guayo River

Fair

Adjuntas Municipio, Puerto Rico · 7 Miles West of Adjuntas · Structure no. 010461

Built
1966
59 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
40 ft
2 main spans
Daily traffic
100
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 374R over Guayo River is a concrete continuous slab carrying Pr 374R over Guayo River in Adjuntas Municipio, Puerto Rico. It was built in 1966, so it is 59 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 5 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 100 vehicles a day, roughly 2% of them trucks, projected to reach 200 by 2025. The structure is 40 ft (12.2 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesPr 374R
CrossesGuayo River
Location7 Miles West of Adjuntas
RouteState Highway 374R
CountyAdjuntas Municipio
StatePuerto Rico
Coordinates18.17371, -66.8246
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating37 US tons
Inventory rating28.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span18 ft (5.5 m)
Deck width20 ft (6.2 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2017)
Projected traffic200 by 2025
Trucks2%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$45,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 374R over Guayo River built?

It was built in 1966, making it 59 years old in 2025.

What condition is Pr 374R 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 June 2023.

How much traffic does Pr 374R over Guayo River carry?

About 100 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Pr 374R over Guayo River?

The structure is 40 ft (12.2 m) long with a longest span of 18 ft (5.5 m) and a deck 20 ft wide.

Who owns Pr 374R over Guayo River?

It is owned by the State Highway Agency.