A) Karkheh irrigation and drainage network project :

This projects on Karkheh River with area about 500000 km that is the third deepest river in country and include of Shoosh , Hamidieh , Hoveizeh , Soosangerd and Boston plains .
This project is including of 15 projects in below over an area of 276150 ha .

1) Pay-e-Pol diversion and regulation dam .
2) Main canal of Pay-e-Pol .
3) Main drains of Pay-e-Pol plain .
4) Water transfer canal of Shahis Chamran .
5) Water transfer canal of Dasht-e-Azadegan .
6) Irrigation and drainage network of Evan plain .
7) Irrigation and drainage network of Dasht-e-Azadegan .
8) Irrigation and drainage network of Dasht-e-Kosar .
9) Kosar pumping station and main canal of water transfer.
10) Arayez and Dosalegh plains
 

Irrigation and drainage network .
11) Dasht-e-Chamran (Chamran plain) Irrigation and drainage .
12) Bagheh plain Irrigation and drainage network .
13) Karkhe siphon .
14) Shahid Chamran River – basin and water transfer canal .
15) Main drain construction in south of Karkhe .
  B ) Great Karoon Irrigation and drainage network Project :

This project is located on Karoon River that is the deepest river of country . This project is begun from south of Shooshtar between Gargar and Shoteit Rivers is extended on north – east of Ahwaz and border of Karoon river .
Total lands of this project are 86000 ha that include of 4 Importance project :

1) Shooshtar Mianab plain Irrigation and drainage network .
2) Irrigation and drainage network of north-east of Ahwaz that is include of Weys , Abolfazl , Salamat , Molassani and Seied Soltan units .
3) Shooshtar Shoeibieh plain Irrigation and drainage network .

4) GarGar Irrigation and drainage network .
C) Allah and Maroon Irrigation and drainage network project :

This project is located on Maroon and Allah River on main branch of Jarahi River include of part of around lands of Behbahan , Ramhormoz , Ramshir and Shadegan cities. Total lands of this project are 80015 ha that include of 5 Important projects :

1) Diversion dam and Irrigation and drainage network of Behbahan plain .
2) Diversion dam and Irrigation and drainage network of Jayezan plain .
3) Diversion dam and Irrigation and drainage network of Ramhormoz plain .
4) Diversion dam and Irrigation and drainage network of Ramshir plain .
5) Diversion dam and Irrigation and drainage network of Shadegan plain .
 
D) Zohreh and Boneh – Basht Irrigation and drainage network project :

This project is located on Zohreh River with area of 13585 km and its location is south west of Khuzestan province that is begun from Boneh-Basht in 25 km of Behbahan and continues until environs ( near ) of Hendijan in border of Persin Gulf .
This project is including of six main projects over an area 71500 ha .

1) Shahid Rajaee of Omidieh Irrigation and drainage network .
2) Shahid Rajaee of Omidieh extension Irrigation and drainage network .
3) Hendijan Irrigation and drainage network .
4) Boneh-Basht Irrigation and drainage network .
5) Zeydoon of Behbahan Irrigation and drainage network .
6) Hendijan diversion dam .
  E) Abadan and Khoramshahr Irrigation and drainage network project :

This project is located in southwestern extremity end of country and in border of Persian Gulf and between Bahmanshir and Arvand river area of 32000 ha of Abadan and Khoramshahr Island .

This project is including of 3 main important parts .

1) Fresh water supplying part unit .
2) Injection fresh water part into Abadan Island .
3) Distribution of fresh water .