Section 68-1407 - Same; surveys, plans and specifications; letting of contracts; publication notice; bond of contractor(a) The county engineer, when directed by the board of county commissioners, shall make all necessary surveys and investigations and prepare plans and specifications for the construction of a bridge and the approaches thereto, together with an estimate of the cost thereof, and file such plans, specifications and estimate in the office of the county clerk of such county. Such bridge shall be constructed under written contract made and awarded to the lowest responsible bidder, upon sealed proposals therefor based upon the plans and specifications so prepared and filed in the office of the county clerk of such county. No contract shall be awarded therefor at a price in excess of the estimated cost.(b) The plans and specifications prepared and filed as above provided shall be considered and approved by the board of county commissioners and thereafter the board shall advertise for three consecutive weeks in the official county paper for sealed proposals for the construction of such bridge, and the contract therefor shall be awarded to the lowest responsible bidder, and any contractor to whom any such contract is awarded, shall enter into a written contract therefor and to secure the faithful performance thereof shall file in the office of the county clerk of such county a bond duly executed by one or more surety companies duly authorized to do business in this state to be approved by the board of county commissioners.Amended by L. 2011, ch. 49,§ 28, eff. 7/1/2011.L. 1913, ch. 69, § 2; March 13; R.S. 1923, 68-1407.