US Bridges

Pr 837 over Guaynabo River

Fair

Guaynabo Municipio, Puerto Rico · 3 KM S W of Guaynabo · Structure no. 021951

Built
1977
48 years old, rebuilt 1996
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
145 ft
2 main spans
Daily traffic
2,500
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 837 over Guaynabo River is a prestressed concrete stringer/multi-beam or girder carrying Pr 837 over Guaynabo River in Guaynabo Municipio, Puerto Rico. It was built in 1977 and reconstructed in 1996, so it is 48 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 2,500 vehicles a day, roughly 5% of them trucks, projected to reach 3,300 by 2025. The structure is 145 ft (44.2 m) long and 60 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesPr 837
CrossesGuaynabo River
Location3 KM S W of Guaynabo
RouteState Highway 837
CountyGuaynabo Municipio
StatePuerto Rico
Coordinates18.35842, -66.115
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 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 rating86.5 US tons
Inventory rating51.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length145 ft (44.2 m)
Longest span71 ft (21.5 m)
Deck width60 ft (18.3 m)
Roadway width49 ft (15 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2017)
Projected traffic3,300 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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$2 million (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 837 over Guaynabo River built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 1996.

What condition is Pr 837 over Guaynabo 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 837 over Guaynabo River carry?

About 2,500 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Pr 837 over Guaynabo River?

The structure is 145 ft (44.2 m) long with a longest span of 71 ft (21.5 m) and a deck 60 ft wide.

Who owns Pr 837 over Guaynabo River?

It is owned by the State Highway Agency.