US Bridges

Off Pr 176 7.5 KM over Piedras River

Fair

San Juan Municipio, Puerto Rico · 1.5 KM South Rio Piedras · Structure no. 020781

Built
1972
53 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
4,000
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Off Pr 176 7.5 KM over Piedras River is a concrete slab carrying Off Pr 176 7.5 KM over Piedras River in San Juan Municipio, Puerto Rico. It was built in 1972, so it is 53 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 6 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 4,000 vehicles a day, roughly 2% of them trucks, projected to reach 5,200 by 2025. The structure is 33 ft (10.1 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesOff Pr 176 7.5 KM
CrossesPiedras River
Location1.5 KM South Rio Piedras
RouteCity Street 0
CountySan Juan Municipio
StatePuerto Rico
Coordinates18.33667, -66.05889
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating67.8 US tons
Inventory rating40.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width24 ft (7.3 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2017)
Projected traffic5,200 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$1.9 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Off Pr 176 7.5 KM over Piedras River built?

It was built in 1972, making it 53 years old in 2025.

What condition is Off Pr 176 7.5 KM over Piedras 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 August 2024.

How much traffic does Off Pr 176 7.5 KM over Piedras River carry?

About 4,000 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Off Pr 176 7.5 KM over Piedras River?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 24 ft wide.

Who owns Off Pr 176 7.5 KM over Piedras River?

It is owned by the City or Municipal Highway Agency.