Last Updated on: February 04, 2025

• 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.

 

Name of river	Category of river	Original Length of Embkt.	Present Effective Length	Year of original construction
Brahmaputra	A	80.88 Km	37.450 Km	1954-60
Gainadi	C	35.228 Km	35.228 Km	1963-65
Moridhal	C	29.24 Km	29.240 Km	1954-56
Jiadhal	B	22.43 Km	59.015 Km	1954-57
Kumatiya	B	36.585 Km		1954-56 & 1978-79
Silley	C	8.10 Km	8.100 Km	1984-88
Na-Nadi	C	3.040 Km	3.040 Km	(Taken over in) 2011-12
Simen	B	1.40 Km	1.40 Km	2015-16
	Total	216.903 Km	173.473 Km

 

Sl. No.	Name of Embankment	Original Length	Effective Length
1	B/dyke from Malbhug Tiniali to Bhalukaguri	7.705 Km	7.705 Km
2	B/dyke from U/S of Keker to Borang.	15.00 Km	15.00 Km
3	B/dyke from Dizmore to Sonarigaon	23.15 Km	20.800 Km
4	B/dyke from Deorighat to Sissikalghar	27.525 Km	18.00 Km
5	B/dyke from Sissikalghar to Tekeliphuta	7.50 Km	7.500 Km
6	Jiadhal dyke from Basin to Rly. line	16.20 Km	9.209 Km
7	Flood protection of Dhemaji area on L/B of Jiadhal river (Tinigharia to Rly. line)	6.23 Km	6.23 Km
8	Kumatiya R/B from Nepalibasti to Gurathali Chapori	24.785 Km	24.785 Km
9	Kumatiya L/B from NH-52 to Gurathali Chapori	11.80 Km	11.80 Km
10	M/E along L/B of  Gainadi U/S of Rly. line from Rly. line to Barutigaon.	6.60 Km	6.60 Km

11	M/E along L/B of Gainadi D/S of NH-15 to Amguri PWD road.	14.31 Km	14.31 Km
12	M/E along R/B of Gainadi U/S of Rly. line from Rly. line to Nilakh	7.00 Km	7.00 Km
13	M/E along R/B of Gainadi D/S of NH-15	7.318 Km	7.318 Km
14	M/E along R/B of Gainadi in between NH-15 to Railway line.	0.124 Km	0.124 Km
15	Moridhal dyke from Sarukacharigaon to Sissikalghar	29.24 Km	29.24 Km
16	M/E along R/B of Silley in Jonai Civil Sub-Division from Leku CPWD bridge to Bahir Silley	8.10 km	8.10 Km
17	Na-nadi R/B embankment	3.040 Km	3.040 Km
18	Blind dum at Rongpuria (Simen river L/B)	1.40 km	1.40 Km
	Total =	217.027 Km	177.361 Km

 

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