Over half the 7.3 million cu m of tunnel spoil from London’s $26-billion Crossrail project is to be barged down the Thames River from tunnel sites to create new wetlands 100 kilometers away.
Project owner Crossrail Ltd. (CRL) will fund land acquisition and earthmoving for the U.K.’s largest coastal habitat creation scheme, on Wallasea Island, next to the River Crouch, Essex.