SACRAMENTO, Calif. (AP) – California water officials say they have awarded a contract to repair Oroville Dam’s two damaged spillways to a Nebraska construction company. The Department of Water Resources announced Monday that Kiewit Corp. of Omaha was awarded the $275 million contract. Kiewit made the lowest bid of the three companies but its offer is still higher than the $231 million estimated by the department. The department said Saturday it estimated repair costs at $220 million but corrected that figure on Monday after finding an error. Officials have said they want the work done by Nov. 1. Authorities in February ordered the evacuation of 188,000 people downstream of California’s second largest reservoir after surging releases of water tore away big chunks of the spillways.