US Bridges

Pr 725 4.2 KM over Aibonito River

PoorPosted for load

Aibonito Municipio, Puerto Rico · 2 KM N W of Aibonito · Structure no. 009041

Built
1970
55 years old
Condition
Poor
inspected June 2024
Type
Slab
Concrete Continuous
Length
81 ft
3 main spans
Daily traffic
8,900
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 725 4.2 KM over Aibonito River is a concrete continuous slab carrying Pr 725 4.2 KM over Aibonito River in Aibonito Municipio, Puerto Rico. It was built in 1970, so it is 55 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 8,900 vehicles a day, roughly 5% of them trucks, projected to reach 12,800 by 2025. The structure is 81 ft (24.6 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesPr 725 4.2 KM
CrossesAibonito River
Location2 KM N W of Aibonito
RouteState Highway 725
Coordinates18.16097, -66.29036
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating22.8 US tons
Inventory rating17.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length81 ft (24.6 m)
Longest span29 ft (8.7 m)
Deck width22 ft (6.7 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,900 (2017)
Projected traffic12,800 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 with deck rehabilitation or replacement
Estimated improvement cost$101,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 725 4.2 KM over Aibonito River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Pr 725 4.2 KM over Aibonito River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does Pr 725 4.2 KM over Aibonito River carry?

About 8,900 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Pr 725 4.2 KM over Aibonito River?

The structure is 81 ft (24.6 m) long with a longest span of 29 ft (8.7 m) and a deck 22 ft wide.

Who owns Pr 725 4.2 KM over Aibonito River?

It is owned by the State Highway Agency.