Dhaleshwari River in the context of "Turag River"

The Meghna (Bengali: মেঘনা, romanized: Mēghnā) is one of the major rivers in Bangladesh, one of the three that form the Ganges Delta, the largest delta on earth, which fans out to the Bay of Bengal. A part of the Surma-Meghna River System, the Meghna is formed inside Bangladesh in Kishoreganj District above the town of Bhairab Bazar by the joining of the Surma and the Kushiyara, both of which originate in the hilly regions of eastern India as the Barak River. The Meghna meets its major tributary, the Padma, in Chandpur District. Other major tributaries of the Meghna include the Dhaleshwari, the Gumti, and the Feni. The Meghna empties into the Bay of Bengal in Bhola District via four principal mouths, named Tetulia (Ilsha), Shahbazpur, Hatia, and Bamni.

Dhaka (/ˈdɑːkə/ DAH-kə or /ˈdækə/ DAK-ə; Bengali: ঢাকা, romanized: Ḍhākā, pronounced [ˈɖʱaka] ), formerly spelled as Dacca, is the capital and largest city of Bangladesh. With an estimated population of 36.6 million, Dhaka is the second largest city by population in the world, and is widely considered to be the most densely populated built-up urban area in the world. Dhaka is an important cultural, economic, and scientific hub of Eastern South Asia. Dhaka ranks fourth in South Asia and 55th in the world in terms of GDP. Lying on the Ganges Delta, it is bounded by the Buriganga, Turag, Dhaleshwari and Shitalakshya rivers. It is also the largest Bengali-speaking city in the world.

The area of Dhaka has been inhabited since the first millennium. An early modern city developed from the 17th century as a provincial capital and commercial centre of the Mughal Empire. Dhaka was the capital of a proto-industrialized Mughal Bengal for 75 years (1608–39 and 1660–1704). It was the hub of the muslin trade in Bengal and one of the most prosperous cities in the world. The Mughal city was named Jahangirnagar (The City of Jahangir) in honour of the erstwhile ruling emperor Jahangir. The city's wealthy Mughal elite included princes and the sons of Mughal emperors. The pre-colonial city's glory peaked in the 17th and 18th centuries, when it was home to merchants from across Eurasia. The Port of Dhaka was a major trading hub for both riverine and maritime commerce. The Mughals decorated the city with well-laid gardens, tombs, mosques, palaces, and forts. The city was once called the Venice of the East.

Louhajang River (Bengali: লৌহজং নদী, romanized: lauhajaṁ nadī [lowɦɔdʒɔŋ nɔdi]) is located in central Bangladesh. It branches off from the Jamuna near Gabsain at Bhuapur, Tangail District. Thereafter it bifurcates before the two parts meet up again. It flows past Tangail city, Karotia and Jamurki before joining the Bangshi. The Louhajang is linked with the Dhaleshwari.

The average depth of the Louhajang is 1 metre (3 ft) and maximum depth is 3 metres (9 ft).

Shitalakshya River (Bengali: শীতলক্ষ্যা নদী, romanized: Śītalakṣya Nadī pronounced: Shitalokkha Nodi) (also known as Lakshymā River) is a distributary of the Brahmaputra. A portion of its upper course is known as Banar River or Banor River. In the Shitalakshya's initial stages, it flows in a southwest direction and then east of the city of Narayanganj in central Bangladesh until it merges with the Dhaleswari near Kalagachhiya. The river is about 110 kilometres (68 mi) long and at it widest, near Narayanganj, it is 300 metres (980 ft) across. Its flow, measured at Demra, has reached 74 cubic metres per second (2,600 cu ft/s). It remains navigable year round. The Shitalakshya flows through Gazipur district, forming its border with Narsingdi for some distance and then through Narayanganj District.

The river's maximum depth is 21 metres (70 ft) and average depth is 10 metres (33 ft).