Английская Википедия:Candaba Viaduct

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The Candaba Viaduct (also known as Pulilan–Apalit Bridge and Candaba Pampanga Viaduct) is a Шаблон:Convert viaduct carrying the North Luzon Expressway (NLEX) across the Candaba Swamp in the provinces of Pampanga and Bulacan, Philippines consisting of six lanes (three northbound and three southbound). It was the longest bridge in the Philippines upon its opening in 1976, surpassed in April 27, 2022 by the 8.9 km Cebu–Cordova Link Expressway (CCLEX) upon its inauguration making the viaduct now the second longest bridge in the country. The viaduct was designed by Aas-Jakobsen and built by Construction Development Corporation of the Philippines (CDCP, later renamed to Philippine National Construction Corporation) as part of construction of the whole NLEX.

Built in 1976, the bridge and the whole stretch of NLEX were constructed as a component project of the International Bank for Reconstruction and Development through the direction of the Ministry of Public Highways. The project was completed in 1977 and through Presidential Decree No. 1113, then President Ferdinand Marcos granted CDCP the franchise to maintain and operate the NLEX including the Candaba Viaduct. On February 10, 2005, the operations and maintenance of the whole of NLEX were transferred to the Manila North Tollways Corporation (now NLEX Corporation).

Overlooking Mount Arayat in the east and Zambales Mountains in the west, the viaduct is raised over Candaba Swamp, which keeps the highway open to traffic, even when the swamp gets flooded during the rainy or monsoon season. Lighting, emergency callboxes and CCTVs along the viaduct are powered by solar panels due to the problem of installing power lines within the viaduct.

The viaduct also serves as a major utility corridor, serving as the right-of-way of relocated San Simon–Pulilan segment of Hermosa–Duhat–Balintawak 230,000-volt transmission line where the said power line segment underwent relocation from February 18, 2008 to June 2011 to accommodate the widening and expansion of MacArthur Highway from San Simon, Pampanga to Calumpit, Bulacan and Pulilan Regional Road from Calumpit to NLEX Pulilan Exit in Pulilan, where the steel poles posed a safety hazard. The Hermosa–San Jose 500,000-volt line intersects with the viaduct and also visible from it.

In February 2017, it was announced that Candaba Viaduct would be expanded and would have a third lane on both sides of the bridge.

In April 2023, the 5.3-kilometer Third Candaba Viaduct started construction in the middle of the old Candaba Viaduct to take away some of the weight passing through the existing bridges. It intersects the Apalit-Balucuc-Tabuyuc Bypass Road and is expected to be completed in November 2024. 2x3 lanes without shoulders is being constructed, from 3 lanes without shoulder to 3 lanes with inner and outer shoulders in each direction which increases speed from 60 to 80 kms. per hour, using green and sustainable engineering practices. It will have piers at every 20 meters each supported by 2 columns and 2 bored piles that will strengthen the structure.

In February, 2024, the construction of Third Candaba Viaduct is 40% complete. Installed were 432 of 516 bored piles as foundation of the bridge structure, 154 of 568 columns (a vertical member that transfer the loads from the superstructure to the foundations) were constructed and 20 of 286 crossheads were launched (a structure that supports and connects to the girders and facilitates transfer of loads to the columns) Jose Luigi L. Bautista signed a P10 billion loan agreement with Bank of the Philippine Islands for funding to ensure its completion in November, 2024.

Route description

Файл:09767jfCandaba Viaduct North Luzon Expressway Bulacan Pampangafvf 10.JPG

Candaba Viaduct before the 2017 expansion

The Candaba Viaduct passes over Candaba Swamp and adjacent Pampanga River and connects the provinces of Pampanga and Bulacan. Most of its portions are lined with billboards, rice paddies, and some trees.

The viaduct starts at Barangay Dulong Malabon in Pulilan where there are a few houses located under it and after a few meters, it enters the municipality of Calumpit. It enters Pampanga (Apalit) upon approaching a lay-by located before passing an area with palm trees and continues on a straight route. It then passes through Apalit Bypass Road (with no junction or exit to serve the bypass road) and Pampanga River, by which the parish church is located, visible from the road. A footbridge is located on its southbound lane. The bridge ends after crossing Pampanga River.

In popular culture

This bridge is the reference in a joke, "Mula sa kabila, itlog. Pagtawid naging 'ibon' na sa haba ng tulay" ("From the other end, was still an egg. When they reached the other end, it became a 'bird' due to the bridge's length"). It is because the Kapampangan word for egg is "ebun".

• Third Candaba Viaduct Construction
• Pulilan NLEx access road

  Pulilan NLEx access road

• Third Candaba Viaduct in February, 2024

  Third Candaba Viaduct in February, 2024

• Bored piles, columns, crossheads and girders Dulong Malabon

  Bored piles, columns, crossheads and girders Dulong Malabon

See also

• North Luzon Expressway
• List of bridges in the Philippines