Nahar Lining Works - Banda District
Banda, Uttar Pradesh
Client
Minor Irrigation Department, Uttar Pradesh
Value
₹ 38 Lakhs
Duration
4 Months
Completed
November 2023
Category
Nahar Lining
Project Overview
This project covered the cement-concrete lining of a 3.2 km nahar network serving agricultural land in Banda district under the Pradhan Mantri Krishi Sinchayee Yojana (PMKSY) scheme. The existing earthen field channels were losing approximately 45% of water to seepage before reaching the fields. Wave Earth Infratech executed the complete lining works including bed and side wall concreting, inlet-outlet structures, and field drain connections - substantially improving irrigation efficiency and reducing water waste across the command area.
Scope of Work
- Desilting and earthwork shaping of existing nahar: 9,800 cum
- Cement concrete lining M-15 grade - bed and both side walls
- Construction of 14 inlet and outlet structures
- Connecting field drain outlets at farmer field entries
- Construction of turnout and regulator structures: 4 nos
- Finishing, curing, and quality testing of lining works
- Final measurement and handover documentation
Challenges & Solutions
Challenge
Harvest season restrictions meant work had to stop at certain locations during November
Solution
Work schedule adjusted to progress from two ends simultaneously, completing sections away from standing crops first
Challenge
High water table in low-lying sections caused formwork instability
Solution
Dewatering pumps deployed and formwork base deepened with additional shuttering support
Challenge
Existing nahar alignment had sharp curves requiring special formwork
Solution
Flexible panel formwork fabricated on-site to match curved sections accurately
Project Timeline
Week 1-2
Survey, staking, and mobilisation. Earthwork shaping of first 1.0 km
Week 3-5
Earthwork completion and CC lining of Phase 1 (1.0 km)
Week 6-9
CC lining Phase 2 (1.2 km) and inlet/outlet structure construction
Week 10-13
CC lining Phase 3 (1.0 km) and turnout structures
Week 14-16
Curing completion, field drain connections, final testing and handover
Key Quantities
Equipment Used
- JCB Excavator - 1 no
- Dumper Trucks (7T) - 2 nos
- Concrete Mixer (0.3 cum) - 2 nos
- Plate Compactor - 1 no
- Water Tanker - 1 no
- Vibrator for concrete - 1 no
Project Impact
- 3.2 KM of nahar network lined, reducing seepage by approximately 45%
- 1,200+ farmers now receive consistent end-of-channel water supply
- 420 hectares of command area brought under reliable irrigation
- Water distribution equity improved across all farmer outlets
- Reduced maintenance cost for department due to elimination of earthen channel erosion
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