What was the value of the Marmaray CR3 contract?
The Marmaray CR3 contract is the upgrade of about 63 km of existing suburban railway on the European and Asian shores of Istanbul, Turkey, between Halkali and Gebze, to connect with the Bosphorus rail tunnel and form a 76 km commuter line, re-tendered in 2011 after the first contract CR1 with the Alstom, Marubeni and Dogus consortium was terminated. Railway Gazette reported on 3 November 2011 that the contract, valued at 932.8 million euros, was awarded to a 70:30 joint venture of OHL and Invensys Rail, and the full Halkali to Gebze service opened on 12 March 2019.
Contract value
€932.8 million
Approximately $1.3 billion
Cost basis: 2011
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Cost evidence
Basis of the published figure
Contract value2011
Project metrics
Key dimensions
- Total lengthRailway Gazette International
- 63 km
Project record
Opened or launched
railwaygazette.com12 March 2019