Cauvery Delta Basin
Cauvery Delta Canal Siphon & Flood Mitigation Aqueduct
Canal siphon and aqueduct crossing with formed RCC inverts, designed against one-in-one-hundred-year flood profiles and protected by full bank and scour works.
Scope of Work & Structural Compliance
Hydraulic structures built to PWD specification, with concrete and earthwork testing carried out in the site laboratory.
Canal Siphon & Aqueduct Works
- arrow_right_altSiphon Barrels:Multiple reinforced concrete barrels cast in sequence with formed inverts and sealed construction joints.
- arrow_right_altCanal Lining:Concrete lining and cross-drainage structures to reduce seepage loss across the command area.
- arrow_right_altWeir & Head Regulator:Gated and ungated control structures with energy dissipation arrangements downstream.
- arrow_right_altEarth Retaining Structures:Reinforced earth and RCC retaining walls on both approaches to the crossing.
Flood Mitigation & Hydraulic Modelling
Hydraulic design verified against one-in-hundred-year flood profiles, with scour protection and bank protection at every outfall.
Third-Party Independent Testing
Direct oversight and QA verification conducted by the Department of Civil Engineering, National Institute of Technology (NIT) Tiruchirappalli.
Water & Drainage Code Compliance
Executed to the applicable Indian Roads Congress, MoRTH or RDSO specification for this class of work, with records available for departmental audit.
Dedicated Machinery Fleet Mobilised
Vögele Super 1800-3
High-compaction tracked asphalt paver with AB 500 TV screed, capable of continuous 8.5 m paving widths with laser sensor grade control.
Hamm 311 Tandem Rollers
11-tonne heavy tandem vibratory compactors with integrated HCM asphalt compaction meters, used to guarantee 98% laboratory density.
SANY 150T Crawler Crane
Heavy-duty lattice boom crawler crane mobilised for tandem lifting and millimetre-accurate placement of 72-tonne PSC bridge girders.
Schwing Stetter M1.25
Fully automated on-site concrete batching plant with aggregate moisture sensors, chilled water dispensing and computerised micro-dosing.
Execution Milestones & Phasing Velocity
Chronological phasing of the critical path operations for this contract.
Hydraulic Survey & Cofferdam Mobilization
Cross-section survey of the canal reach and cofferdam installation ahead of the irrigation shut-down window.
Siphon Barrels Cast & Sealed
Multiple RCC barrels cast in sequence with formed inverts and watertight construction joints.
Weir, Head Regulator & Energy Dissipation
Control structure and downstream energy dissipation arrangements completed and tested.
Canal Lining & Cross-Drainage
Concrete lining and cross-drainage structures finished across the command reach.
Bank Protection & Commissioning
On TimeLaunching aprons, bank protection and outfall works completed, and the canal recommissioned for irrigation.
“The siphon was completed within the shut-down window and the canal was recommissioned on schedule for the irrigation season, with concrete test records complete for every barrel.”
Er. M. Selvaraj, B.E. (Civil)
Executive Engineer, Water Resources Organisation, PWD
Cauvery Delta Siphon Alignment
Total corridor length: 3.40 KM
Upper Canal Reach to Delta Distribution Network
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