The superintendent of streets shall advertise for bids for the improvement of the roadbed pursuant to Section 6764 of the Streets and Highways Code. The legislative body shall award the contract for the making of the improvements to the lowest regular responsible bidder. The bidding and awarding of contracts shall be made in the manner provided in Part 3 (commencing with Section 5100) of Division 7 of the Streets and Highways Code for the awarding of contracts for improvements except that no notice of award shall be published.