US Bridges

Pr 1 75.5 KM over Depression

FairPosted for load

Salinas Municipio, Puerto Rico · 10 KM South West of Cayey · Structure no. 000181

Built
1926
99 years old, rebuilt 1947
Condition
Fair
inspected December 2023
Type
Slab
Concrete
Length
20 ft
1 main span
Daily traffic
500
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 1 75.5 KM over Depression is a concrete slab carrying Pr 1 75.5 KM over Depression in Salinas Municipio, Puerto Rico. It was built in 1926 and reconstructed in 1947, so it is 99 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 500 vehicles a day, roughly 5% of them trucks, projected to reach 600 by 2025. The structure is 20 ft (6.1 m) long and 40 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesPr 1 75.5 KM
CrossesDepression
Location10 KM South West of Cayey
RouteState Highway 1
CountySalinas Municipio
StatePuerto Rico
Coordinates18.07742, -66.24656
Functional classRural Major 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.
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 inspectionDecember 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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19.8 US tons
Inventory rating15.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width40 ft (12.3 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2017)
Projected traffic600 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed31.1 mi (50 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$216,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pr 1 75.5 KM over Depression built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1947.

What condition is Pr 1 75.5 KM over Depression 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 December 2023.

How much traffic does Pr 1 75.5 KM over Depression carry?

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

How long is Pr 1 75.5 KM over Depression?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 40 ft wide.

Who owns Pr 1 75.5 KM over Depression?

It is owned by the State Highway Agency.