CMRL Schedule of Rates
About Chennai Metro Rail Limited
CMRL is the implementing agency for Chennai Metro Phase 1 (commissioned 2015-19) and the ongoing Phase 2 (118 km, 128 stations, target completion 2027-28). Phase 2 represents one of India's largest metro construction programmes with civil works across underground tunnels (TBM), elevated viaducts, station structures, depot civil and allied works. CMRL doesn't publish a standalone SOR — each tender package publishes its own BoQ derived from TN PWD/Highways SOR + CPWD DSR (current edition) + project-specific items unique to metro construction (TBM mucking civil, station box construction, elevated track-bed). The /nit-project/civil/ page on chennaimetrorail.org indexes active and recent NITs with full BoQ details. Reference DMRC's published Outline Construction Specification for the technical envelope.
Frequently Asked Questions
Does CMRL publish a Schedule of Rates?
No standalone SOR. Civil-works rates derive from TN PWD/Highways and CPWD DSR baselines plus project-specific items unique to metro construction. Each tender NIT publishes its own complete BoQ.
What technical specifications does CMRL use?
CMRL adopts DMRC's Outline Construction Specification (Phase IV revisions) as the technical envelope, with Chennai-specific modifications for soil conditions, seismic zone (II), and coastal proximity considerations.
Where do I find current CMRL tender BoQs?
chennaimetrorail.org/nit-project/civil/ indexes active NITs. Each NIT carries the full project BoQ during the bid window. Recent Phase 2 packages: TDR-65 (depot civil), TDR-50 (Corridor 3 viaduct), and underground station packages.
How do CMRL rates compare to DMRC rates?
Generally similar magnitude. Chennai's coastal seismic conditions and ground-water table push some structural items higher; lower mason wages keep some labour items below Delhi. Net difference: ~5-10% across packages.
Are TN PWD rates the fallback?
Yes — for general civil items not specifically defined in CMRL's project BoQ, TN PWD/Highways SOR + CPWD DSR are the fallback rate references.