US Bridges

PR.20 over PR.169 & Guaynabo Ri

Fair

Guaynabo Municipio, Puerto Rico · 4 KM South of Guaynabo · Structure no. 026241

Built
2003
22 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
557 ft
5 main spans
Daily traffic
34,900
2017 count
Owner
State
State Highway Agency

About this bridge

PR.20 over PR.169 & Guaynabo Ri is a prestressed concrete stringer/multi-beam or girder carrying PR.20 over PR.169 & Guaynabo Ri in Guaynabo Municipio, Puerto Rico. It was built in 2003, so it is 22 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 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 34,900 vehicles a day, roughly 5% of them trucks, projected to reach 44,000 by 2025. The structure is 557 ft (169.9 m) long and 83 ft wide.

Location

Open in Google Maps
CarriesPR.20
CrossesPR.169 & Guaynabo Ri
Location4 KM South of Guaynabo
RouteState Highway 20
CountyGuaynabo Municipio
StatePuerto Rico
Coordinates18.32979, -66.09987
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating102.7 US tons
Inventory rating61.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length557 ft (169.9 m)
Longest span113 ft (34.5 m)
Deck width83 ft (25.4 m)
Roadway width75 ft (23 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,900 (2017)
Projected traffic44,000 by 2025
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed—
TollOn a toll 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.20 over PR.169 & Guaynabo Ri built?

It was built in 2003, making it 22 years old in 2025.

What condition is PR.20 over PR.169 & Guaynabo Ri 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.20 over PR.169 & Guaynabo Ri carry?

About 34,900 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is PR.20 over PR.169 & Guaynabo Ri?

The structure is 557 ft (169.9 m) long with a longest span of 113 ft (34.5 m) and a deck 83 ft wide.

Who owns PR.20 over PR.169 & Guaynabo Ri?

It is owned by the State Highway Agency.