WORK on the massive foundations for the terminal building at Chek Lap Kok is behind schedule, the Provisional Airport Authority (PAA) admitted yesterday. But it said work would still be completed by next April. Just 35 per cent of the foundations for the 1.2-kilometre-long building have been completed, even though work should have already passed halfway. Most of the site should be handed over to the terminal main contractor in February and March. Overall completion is a month later. Construction is being carried out by a Gammon-Nishimatsu joint venture under a $465 million contract awarded last July. Both firms face crippling damages if deadlines are missed. PAA corporate development director Clinton Leeks refused to say how large the delay is, but said it stemmed from the two months of heavy rainfall during summer and was compounded by the tight 10-month deadline. The PAA's tough contract conditions preclude giving Gammon-Nishimatsu any extension of time but the authority appears anxious to reach agreement with the two firms. 'There are delays but they will have no impact on the overall programme. We are working with the contractors, who are doing a good job,' Mr Leeks said. Alastair Thomson, PAA project manager, said work was still due to meet the handover deadline. Meanwhile, work on other parts of the project are ahead of target. Reclamation reached an important milestone earlier this week when the 1,000th hectare of the 1,248 ha site was formed.