• Introduction 

              The Dhemaji Water Resources Division was established in the year 1964 and then onwards it is looking after the flood and erosion management works about 80.88 Km  reach length of Brahmaputra and 121.25 Km  reach length of its tributaries in Dhemaji District through its Sub- Divisions namely –

                                    1. Dhemaji-Sissiborgaon W. R. Sub- District, Dhemaji

                                    2. Jonai W. R. Sub- District, Jonai

           The District of Dhemaji is occupying total geographical area of 3237 Sq. Km. Like the rest of the state of Assam, the District has a sub-tropical humid type of climate. The district is located in Longitude 94⁰33^/26.22^// East, and Latitude 27⁰28^/52^// North.  It has a population of about 686133 ( As per 2011 Census, Provisional)

RIVER NETWORK IN DHEMAJI DISTIRCT

            The major river under its jurisdiction is the river Brahmaputra which is flowing along the Southern boundary of Dhemaji District and its tributaries flowing in Southern direction control the entire drainage system of the district and play an important role in occurrence of flood and erosion in the district. The major tributaries in Dhemaji district are

1. Jiadhal / Kumatiya, 2. Gainadi, 3. Na-Nadi, 4.Moridhal, 5. Dimow, 6.Simen, 7.Depi, 8.Deka, 9. Dekhari, 10.JalakiaSuti, 11.Rajakhana, 12.Rayan, 13.Tangani, 14.Silley, 15. Jaba Nalla, 16. Mopi Nalla, 17. Nahar Nalla

                       Moreover, there are innumerable nos. of streams and rivulets which originate from the hills of Arunachal Pradesh, join these Tributaries and add additional discharge to them.

                       The river Brahmaputra is causing problem of flood in Assam since the major earthquake of 1950 as the river bed has risen considerably after the earthquake reducing water carrying capacity of the river. Apart from the main reason of rise in water bed level due to comparative young geology of the Himalayan mountain range from where the river Brahmaputra and most of its tributaries are originated carry a huge amount of silt load during the monsoon season and create innumerable sand chars within the river course. The sand chars have reduced the peak discharge carrying capacity for which every year the river erodes the banks in order to accommodate the unbearable discharge during monsoon.

Embankment system under Dhemaji W. R. Division :

            At present the Dhemaji W. R. Division has 217.027 Km of embankments on major rivers in Dhemaji District. All the major embankments were originally constructed in-between 1954-2025. Construction of these embankments has given reasonable flood protection to about 59344 Hect. of highly flood prone areas in the districts. Category wise lengths of embankments so far constructed are shown.

EMBANKMENT SYSTEMS UNDER DHEMAJI DISTRICT

Contact Details :

Office Address :nhg

Office of the Executive Engineer, Dhemaji W.R. Division

P.O.-Dhemaji

Dist- Dhemaji Pin- 787057 (Assam)

Contact Us :

E-mail : waterresources.dhemaji@gmail.com

Phone : 9101298460