DHAKA, March 11 (Xinhua) -- Engineers of the China Major Bridge Engineering Company Sunday installed the third span of Bangladesh's largest Padma Bridge.

The 3,140-ton span (number 7C) was placed between pear-39 and pear-40 on Sunday morning.

Bangladeshi government officials among others witnessed the installation process at a site of the bridge on Sunday morning.

With the installation of the span, the third span among the 41 spans to be installed on the 6.15-km bridge, 450 meters of the bridge is now visible.

It took about three hours for the engineers to complete the installation work of the 150-meter long span starting at 6:00 a.m. local time.

The first and second spans of the bridge were installed on Sept. 30 last year, and Jan. 28 this year.

In December 2015, Prime Minister Sheikh Hasina inaugurated the main works of Padma Bridge project, the biggest of its kind for the country, by unveiling its foundation plaque.

When it comes into operation, the bridge will ease pressure on the country's premier seaport in Chittagong, 242 km southeast of capital Dhaka, as it will bolster the second largest Mongla seaport in Bagerhat district, 178 km southwest of the capital city, experts said.

In June 2014, the Bangladeshi government awarded China Major Bridge Engineering Company Limited a 1.55-billion-U.S.-dollar contract to build core structure of the Padma Bridge project which is to be completed in four years.

The 25-meter-wide and 10-km-long bridge will be built over Padma River, one of the three major rivers in Bangladesh.

About 6.15 km of the bridge is being built over the river while the remaining part on both banks.

The bridge will shorten the travel time between the capital and the southern city of Khulna from the current 13 hours to only about three hours.

The bridge is expected to promote trade and economy of Bangladesh, which, according to a World Bank report, has the potential to end extreme poverty by 2030.

Bangladesh is strategically located between China, India and Southeast Asia, making it well placed to become a trading and manufacturing hub, experts said.

Apart from connecting nearly 30 million people in Bangladesh's southwest region to the rest of the country, the bridge will enhance regional trade and collaboration along the Asian highway No. 1 and the Trans-Asian railway network.

The bridge is among the six projects that are under direct supervision of the Fast Track Project Monitoring Committee headed by the prime minister.