US Bridges

Pr 1 61.0 KM over Maton River

Fair

Cayey Municipio, Puerto Rico · 2 KM South West of Cayey · Structure no. 000151

Built
1927
98 years old, rebuilt 1947
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
10,100
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 1 61.0 KM over Maton River is a steel stringer/multi-beam or girder carrying Pr 1 61.0 KM over Maton River in Cayey Municipio, Puerto Rico. It was built in 1927 and reconstructed in 1947, so it is 98 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 10,100 vehicles a day, roughly 5% of them trucks, projected to reach 12,100 by 2025. The structure is 31 ft (9.4 m) long and 36 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesPr 1 61.0 KM
CrossesMaton River
Location2 KM South West of Cayey
RouteState Highway 1
CountyCayey Municipio
StatePuerto Rico
Coordinates18.09897, -66.18138
Functional classRural Minor 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 protection7 GoodSome minor problems.
Last inspectionOctober 2024
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.4 US tons
Inventory rating31.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width36 ft (10.9 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,100 (2017)
Projected traffic12,100 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$227,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 1 61.0 KM over Maton River built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1947.

What condition is Pr 1 61.0 KM over Maton 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 October 2024.

How much traffic does Pr 1 61.0 KM over Maton River carry?

About 10,100 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Pr 1 61.0 KM over Maton River?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 36 ft wide.

Who owns Pr 1 61.0 KM over Maton River?

It is owned by the State Highway Agency.