as a measure of that, the seawall is budgeted at $24 million for preliminary engineering and environmental review for three quarters of a mile, so we think we're efficient and we're trying to merge two effort. we expect that the waiver request would happen in spring of 2020 and that we would be talking about that waive i request when we're back in d.c. in october. so these are all of the items in the proposed contract amendment. i'll touch on the major ones briefly. so we are finishing up the multi-hazard risk assessment right now. the results are expected in spring of next year. we are trying to ready by building into this contract amendment, a programme to provide lbe support services so that we can, one, understand the tape of work that will be available, advertise that to the appropriate lbes and make sure e they have the capacity and be matched with primes for future work, looking at the bid packages so that they're appropriately sized. we're excited to start and effort with the explor explorat. , wear skated to be launching an effort to explain this complicated programme to the san f