engineering

Ottu barrage

Ottu barrage is a engineering topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Ottu barrage rather than just read about it. In short: The Ottu barrage, sometimes spelled as the Otu barrage and also known as Ottu Head, is a masonry weir on the Ghaggar-Hakra River in Sirsa, Haryana state of India that creates a large water reservoir out of the formerly-small Dhanur lake, located near the village of Ottu, which is about 8 miles from Sirsa City in Haryana, India. It is a feeder for the two Ghaggar canals (the Northern Ghaggar canal and the Southern Gh…

Key takeaways

Ottu barrage belongs to engineering; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Ottu barrage to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Ottu barrage from memory before moving on to harder problems.

Reference excerpt

The Ottu barrage, sometimes spelled as the Otu barrage and also known as Ottu Head, is a masonry weir on the Ghaggar-Hakra River in Sirsa, Haryana state of India that creates a large water reservoir out of the formerly-small Dhanur lake, located near the village of Ottu, which is about 8 miles from Sirsa City in Haryana, India. It is a feeder for the two Ghaggar canals (the Northern Ghaggar canal and the Southern Ghaggar canal) that carry irrigation water to northern Haryana state. In 2002, a new tourist complex was inaugurated at the barrage, and it was given the honorary name of "Chaudhary Devi Lal Weir" to commemorate the former Chief Minister of Haryana state, Chaudhary Devi Lal. The Dhanur lake reservoir is now often referred to simply as the Ottu reservoir.

Construction The Ottu barrage was constructed in 1896-97 using low-cost labor that was available due to a famine in the region at that time. Prior to the construction of the barrage and its associated reservoir and canals, agriculture in the then princely state of Bikaner had come under pressure from fluctuating water-supply in the monsoon season caused by diversions in the Ghaggar by riparian farmers further upstream. The barrage and canals cost 6.3 lakh rupees to construct, 2.8 lakhs of which was paid by the princely state of Bikaner and the remainder by the British-run Government of India.

Historical confusion with Talwara lake It was once assumed by some historians that Ottu lake was the site where Timur had encamped after overpowering Bhatnair fort in Hanumangarh (Rajasthan) during his invasion of India in 1398-99 CE. However, it is now known that the actual site of his camp, which he described as being Kinar-e-Hauz (i.e. on the banks of a tank or lake), was at the banks of Talwara Lake, which is further 40 km downstream in Hanumangarh district between Ellenabad and Hanumangarh town.

See also Ghaggar-Hakra River History of Bikaner Talwara Lake List of lakes in India List of dams and reservoirs in Haryana

References

Illustrations

Worked examples

Example 1 — a first encounter with Ottu barrage

Start with the simplest possible case. Write down what Ottu barrage claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Ottu barrage before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Ottu barrage ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Ottu barrage

In research: Ottu barrage appears in engineering research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Ottu barrage in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Ottu barrage is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1897 establishments in India, Barrages in India, Dams completed in 1897, so understanding it makes those chapters shorter.
In everyday life: Look for Ottu barrage outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Ottu barrage” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Ottu barrage in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Ottu barrage means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Ottu barrage out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Ottu barrage in simple terms?

Why does Ottu barrage matter?

Because it connects several engineering ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Ottu barrage?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Ottu barrage.