US Bridges

Pr 1 over Guaynabo River & Pr

FairPosted for load

Guaynabo Municipio, Puerto Rico · 5 KM South of Guaynabo · Structure no. 006921

Built
1955
70 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Concrete Continuous
Length
261 ft
5 main spans
Daily traffic
40,100
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 1 over Guaynabo River & Pr is a concrete continuous tee beam carrying Pr 1 over Guaynabo River & Pr in Guaynabo Municipio, Puerto Rico. It was built in 1955, so it is 70 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. Its operating status is: posted for load restriction.

It carries about 40,100 vehicles a day, roughly 5% of them trucks, projected to reach 46,900 by 2025. The structure is 261 ft (79.5 m) long and 67 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesPr 1
CrossesGuaynabo River & Pr
Location5 KM South of Guaynabo
RouteState Highway 1
CountyGuaynabo Municipio
StatePuerto Rico
Coordinates18.31678, -66.09568
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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.2 US tons
Inventory rating21.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length261 ft (79.5 m)
Longest span72 ft (22 m)
Deck width67 ft (20.3 m)
Roadway width55 ft (16.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,100 (2017)
Projected traffic46,900 by 2025
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed2.5 mi (4 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$484,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pr 1 over Guaynabo River & Pr built?

It was built in 1955, making it 70 years old in 2025.

What condition is Pr 1 over Guaynabo River & Pr 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 October 2023.

How much traffic does Pr 1 over Guaynabo River & Pr carry?

About 40,100 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Pr 1 over Guaynabo River & Pr?

The structure is 261 ft (79.5 m) long with a longest span of 72 ft (22 m) and a deck 67 ft wide.

Who owns Pr 1 over Guaynabo River & Pr?

It is owned by the State Highway Agency.