If on July 1st following the city council's adoption of a resolution establishing unit street facility costs in the manner provided by this chapter, or on July 1st of any year thereafter, there has been an increase in the usual costs of constructing and installing local streets within the Chico Urban Area, including all of the facilities usually necessary and appurtenant thereto, the city manager, without any further action by the city council, shall increase the unit street facility costs adopted by resolution of the city council in an amount proportional thereto. The determination of whether there has been an increase in the cost of constructing and installing local street facilities and the amount of any increase in the unit street facility cost adopted by resolution of the city council which is proportional thereto, shall be made by the city manager based on the net percentage increase in the Engineering News Record Cost Index for San Francisco (based on 1913 U.S. Average = 100) as last published in the Engineering News Record/McGraw Hill Construction Weekly.
(Ord. 1897 (part))