Learning Objectives 1. A barrage is a type of low-head, diversion dam which consists of a number of large gates that can be opened or closed to control the amount of water passing through. Weirs and Barrages 3. If a weir also stores water for tiding over small periods of short supplies, it is called a storage weir. Causes of Failures of Weirs and Barrages on Permeable Foundations 5. This is a list of barrage and Headworks in Pakistan. TOPICS: HEADWORKS DIFFRENCE B/W HEADWORKS AND BARRAGE HEADWORKS IN PAKISTAN 2. The main difference between a storage weir and dam is only in height and duration for which supply is stored. Difference Between Dam Weir and Barrage – Dams, weirs and barrages all are types of headworks used to increase the head of water on the upstream side. GROUP MEMBERS • AHMAD ALI • MUHAMMAD BILAL • MUHAMMAD IBRAHIM • HARRIS KHAN • BILAL AHMAD (BATCH 2016) 3. Barrage is constructed in a path of river to block water. In this video you will get information about Indus River System of Pakistan. The main difference between a storage weir and a dam is only in The main difference between the storage weir and dam is only in height and duration for which the supply is stored. Map of the major rivers, lakes, dams, barrages and reservoirs in Pakistan This list is incomplete ; you can help by adding missing items with reliable sources . Most of the diversion headworks for important canal systems in our country are permanent diversion headworks, and the same are described in the following sections. 2. Sometimes more water is required and the source is limited. No solid structure across river. No solid obstruction is put across the river. This allows the structure to regulate and stabilize river water elevation upstream for use in irrigation and other systems. The flow of a river is a seasonal flow. DIVERSION HEADWORKS Weir The weir is a solid obstruction put across the river to raise its water level and divert the water into the canal. Similar to weir, but the heading up of water is effected by the gates alone. Most of the headworks of important canal systems are of permanent type. Whereas barrage is a part of headwork. A headwork consists of a weir, canal head regulator, gate structure (barrage) . OBJECTIVE OF SURVEY Topographical surveys performed at the design stage of the headworks shall be geared Barrage. There is confusion between these terminologies which are explained in this article. Headworks and barrages in pakistan 1. DIVERSION HEADWORKS (WATER RESOURCES ENGINEERING – II) UNIT – V Rambabu Palaka, Assistant ProfessorBVRIT 2. Both are constructed across the river to maintain the flow of river, for diverting water to canal for irrigation, for generating electricity. 3. Layout Diversion Head Works 4. Types of Diversion Head Works 2. Definition of a headwork. Content 1. Misclosure The difference between a computed and measured value. A dam stores the supply for a comparatively longer duration. Permanent diversion headworks consists of a permanent structure such as weir or barrage constructed across the river to raise the water level in the river and divert it into the canal. So a headwork is a complete system of structures. Diversion Headworks 1. Barrage: The function of barrage is similar to that of weir; but the heading up of water is affected by the gates alone. Difference b/w headwork and barrage. Monument A physical object set in relatively stable material or in a structure and used as an indication of the position on the ground of a survey station. Types of Diversion Headworks. 4. Permanent headworks have a permanent structure in the form of a weir (or a barrage) constructed across the river. So it become often confusing to distinguish between both. 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