Ramnadi

Ramnadi is a river in Pune District and is a tributary of Mula. It originates in the Sahyadris near Kathpewadi, north-west of Pune city. The river flows through the Bhugaon, Bhukum, Bavdhan, Pashan, Baner and Aundh areas of Pune city. It is defined as a brook by the Pune Municipal Corporation (PMC).

Ramnadi
The Ramnadi at Baner
Location
CountryIndia
StateMaharashtra
CityPune
Physical characteristics
SourceSahyadri Range
 • locationnear Kathpewadi
 • elevation957 m
MouthMula River
 • elevation
550 m
Length19.2 km
Basin size181.65 km2
Basin features
WaterbodiesPashan Lake, Manas lake

The width of the river channel has decreased due to illegal constructions and dumping of construction debris. These constructions are yet to be removed. Many rallies have been held to save the river. However, it has been turned into a sewage canal due to dumping of garbage on its banks. Many local residents are in fact unaware of the river's existence. At present the condition of river is like a nullaha. Hence the PMC has undertaken a project to beautify this river. The proposal includes development of a garden along the banks of the river.[1]

The Pashan Lake and Manas lake are the major water bodies on the river basin.

Watershed

The river originates in the western ghats at an elevation of 957 m above sea level. It then flows in the north-west direction eventually merging with the Mula River at an elevation of 550 m. The villages Bhukum, Bhugaon and Pirangut along with the Bavdhan, Aundh, Pashan and Karvenagar suburbs of Pune lie in the Ramnadi watershed.[2] Major water bodies on the river basin are Pashan Lake and Manas lake both of which are man-made.[3]

Flooding

History
  • In 2011 heavy monsoon rains led to flooding on its banks in the low lying Bavdhan, Pashan, Aundh and Baner areas of Pune. Protest by residents followed which demanded that the PMC look into taking flood control measures along the river.[4] In response a joint survey by the PMC and District Administration was taken to list out encroachments along the river bank and channel.[3]
  • In 2019 heavy monsoon rains led to flooding on the river's banks mainly in the Aundh-Baner region of Pune, over 2,000 people were evacuated during the aftermath.[5]

Causes

Activists and experts believe the floods to be a result of decreased water carrying capacity of the river.[4] Encroachment and illegal constructions have decreased the width of the river channel and reduced its water carrying capacity.[3] These illegal constructions are yet to be removed.[6] The construction of a retaining wall along the river channel by the PMC has allowed for reclamation of land in the flood plain for construction activities. The lack of a proper flood line demarcation has further allowed for constructions in the flood plain. This has reduced the channel area by almost 15%. Construction debris and sewage deposition have obstructed the natural flow of the river.[3]

Ramnadi is fed by around 416 stream out of which 106 no longer exist. Most of them have been destroyed as a result of construction and encroachment activities. This has destroyed the natural catchment area.[3] Together these factors have made the areas surrounding the river flood prone.

Restoration

Years of unchecked dumping of trash, as well as illegal encroachments on the banks of the river, has nearly destroyed its ecosystem.[7] Hence it has sparked several restoration projects lead by environmental activists as well as concerned citizens over the years.

Ramnadi Restoration Mission

The Ramnadi Restoration Mission is one of the biggest river restoration projects in Pune,[7] involving nearly 15,000 students from 38 colleges and 18 city-based environmental groups.[8] It aims to restore the river to at least its state in 1949 (70 years prior). It official started on June 4, 2019.[7]

Phase 1 of the project involves the rejuvenation of Khatpewadi lake. Removal of silt from the water body will help increase its capacity, the silt will be used to reduce the gradient of its banks. Plantation of trees along the bank will also be done. Construction of artificial islands in the lake is also being considered to provide ample space for migratory birds to nest and rest.[7] Phase 1 is expected to span over a period of 3 years.[8] Initial restoration efforts part of Phase 1, resulted in a 25% increase in the water sustaining capacity of the Khatpewadi lake.[9]

Experts and environmentalist working with the Ramnadi Restoration Mission prepared a report titled "Ramnadi Flood Report" which analysed the unprecedented flooding of the river during the 2019 monsoon. Key points included loss of tree cover and encroachment by buildings and strongly emphasised the need for flood mapping. The report was submitted to the Pune Municipal Corporation (PMC).[10][11]

References
  1. "PMC to beautify Ramnadi". Times of India. November 1, 2003.
  2. Gabale 2016, p. 152
  3. Gabale 2016, p. 101-108
  4. "Bavdhan, Ramnagar residents near Ramnadi to go on hunger strike to save". The Times of India. TNN. 24 April 2011. Retrieved 26 March 2020.
  5. Nair, Manjula (6 August 2019). "Ramnadi overflows, 2,000 residents moved to safety from Vidhate Vasti". The Times of India. TNN. Retrieved 26 March 2020.
  6. "Ram Nadi: illegal constructions yet to be removed, say activists". The Indian Express. June 16, 2010.
  7. "Mission to save Ramnadi begins as thousands set to join hands". Times of India. June 5, 2019. Retrieved 14 July 2019.
  8. "Pune: Citizens to join hands to revive Ramnadi". Times of India. March 15, 2019. Retrieved 19 July 2019.
  9. "Water sustaining capacity at Khatpewadi up by 25%". The Times of India. TNN. Retrieved 22 December 2019.
  10. "Ramnadi rejuvenation plan to include flood mapping of all existing streams, tributaries". Hindustan Times. 6 January 2020. Retrieved 26 March 2020.
  11. "Reasons of river flooding identified". Sakal Times. 9 January 2020. Retrieved 26 March 2020.
  • Gabale, Shrikant M. (28 July 2016). Impact of urbanization on geomorphic environment of Pune and surrounding (Thesis). Tilak Maharashtra Vidyapeeth. hdl:10603/130327.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.