US Bridges

Pr 128 33.6 KM over Prieto River

FairPosted for load

Maricao Municipio, Puerto Rico · 12 KM East of Maricao · Structure no. 002611

Built
1924
101 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
107 ft
3 main spans
Daily traffic
300
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 128 33.6 KM over Prieto River is a steel stringer/multi-beam or girder carrying Pr 128 33.6 KM over Prieto River in Maricao Municipio, Puerto Rico. It was built in 1924, so it is 101 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 300 vehicles a day, roughly 3% of them trucks, projected to reach 400 by 2025. The structure is 107 ft (32.6 m) long and 21 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesPr 128 33.6 KM
CrossesPrieto River
Location12 KM East of Maricao
RouteState Highway 128
CountyMaricao Municipio
StatePuerto Rico
Coordinates18.16666, -66.86351
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating16.1 US tons
Inventory rating9.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length107 ft (32.6 m)
Longest span30 ft (9 m)
Deck width21 ft (6.3 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2017)
Projected traffic400 by 2025
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$390,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 128 33.6 KM over Prieto River built?

It was built in 1924, making it 101 years old in 2025.

What condition is Pr 128 33.6 KM over Prieto 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 April 2024.

How much traffic does Pr 128 33.6 KM over Prieto River carry?

About 300 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Pr 128 33.6 KM over Prieto River?

The structure is 107 ft (32.6 m) long with a longest span of 30 ft (9 m) and a deck 21 ft wide.

Who owns Pr 128 33.6 KM over Prieto River?

It is owned by the State Highway Agency.