US Bridges

Pr 731 over Santo Domingo Creek

Fair

Cayey Municipio, Puerto Rico · 1.5 KM North of Cayey · Structure no. 014151

Built
1975
50 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
146 ft
2 main spans
Daily traffic
1,700
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 731 over Santo Domingo Creek is a prestressed concrete stringer/multi-beam or girder carrying Pr 731 over Santo Domingo Creek in Cayey Municipio, Puerto Rico. It was built in 1975, so it is 50 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 1,700 vehicles a day, roughly 4% of them trucks, projected to reach 2,400 by 2025. The structure is 146 ft (44.5 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPr 731
CrossesSanto Domingo Creek
Location1.5 KM North of Cayey
RouteState Highway 731
CountyCayey Municipio
StatePuerto Rico
Coordinates18.13006, -66.16796
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.6 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length146 ft (44.5 m)
Longest span68 ft (20.7 m)
Deck width31 ft (9.3 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2017)
Projected traffic2,400 by 2025
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$315,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 731 over Santo Domingo Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Pr 731 over Santo Domingo Creek 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 731 over Santo Domingo Creek carry?

About 1,700 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is Pr 731 over Santo Domingo Creek?

The structure is 146 ft (44.5 m) long with a longest span of 68 ft (20.7 m) and a deck 31 ft wide.

Who owns Pr 731 over Santo Domingo Creek?

It is owned by the State Highway Agency.