In Coimbatore, the early onset of summer has led to a decrease in the water level of the Aliyar PAP Dam, revealing a British-era bridge and the tar road leading to Valparai, attracting tourists and locals alike.
Coimbatore: As summer begins early in the Coimbatore district, the water level in the Aliyar Dam has been steadily decreasing, uncovering historical structures long submerged.
As of 8 AM today, February 25, the water level has fallen to 68.85 feet, revealing a bridge and a tar road built during the British colonial period that leads to Valparai. This bridge, which has withstood the test of time for over 100 years, along with the exposed tar road, has now become a point of interest for both locals and tourists.
The Parambikulam Aliyar Project (PAP) consists of a series of dams and reservoirs located in the Western Ghats, on the border between Tamil Nadu and Kerala states in India. The PAP dam, often referred to in relation to the Aliyar Dam within this project, is primarily aimed at supporting irrigation, water supply, and hydroelectric power generation in the region.

The project harnesses the waters of several rivers and streams flowing at various elevations, enabling the inter-basin transfer of water based on the unique topography of the area. It includes major reservoirs like Parambikulam, Aliyar, Thunakadavu, Palar, Nirar, Sholayar, and Anamalaiyar, among others.
Key aspects of the PAP dam and project include:
1. Multi-Purpose Use: It serves multiple purposes, including irrigation, flood control, water supply for drinking and industrial activities, and power generation. The project significantly contributes to agricultural development and water security in the region.
2. Inter-State Cooperation: The project is a remarkable example of inter-state cooperation between Tamil Nadu and Kerala, ensuring equitable water sharing and management practices.
3. Hydroelectric Power: Several hydroelectric power stations are part of this project, harnessing the potential of stored water to generate electricity, which is crucial for meeting the energy demands of the region.
4. Water Management: The project involves complex water management techniques, including the use of tunnels, aqueducts, and canals to transfer water across different reservoirs and to the areas where it is needed most.
5. Environmental and Social Impact: Like many large-scale water projects, the PAP has had its share of environmental and social impacts, including alterations to natural water flow, effects on local ecosystems, and concerns regarding the displacement of communities. Efforts are made to mitigate these impacts through various conservation and rehabilitation programs.
The PAP dam and the broader project are critical for the socio-economic development of Tamil Nadu and parts of Kerala, providing essential resources for various needs. However, they also highlight the challenges of managing natural resources sustainably in a region with complex ecological and hydrological dynamics.
The sight of these structures, emerging from the depths as the water recedes, offers a glimpse into the past, making it a unique attraction for those seeking to explore the region's historical and natural beauty.