Iowa State Highway Commission, Highway Safety Improvement Program for 1966, 1966

(1966) Iowa State Highway Commission, Highway Safety Improvement Program for 1966, 1966. Transportation, Department of

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Abstract

The following publications are made a part of this inventory and analysis procedure for the reason that they constitute the perpetual inventory of all sub-standard conditions on the primary road system and thus are the basic resource from which construction programs are developed: Rural Primary Road Sufficiency Guide 1964; Sufficiency Guide of the Municipal Extensions on the Primary Road System (Thru June 30, 1965); Sufficiency Rating •Of Bridges on the Primary Road System and Extensions (Thru December 31, 1963); and Deficiency Rating of Iowa Primary Highway Railroad Grade Crossinrs (as of May 1, 1963). The Iowa State Highway Commission Five Year Primary Road Construction Program, 1966 through 1970, is also made a part of this 1966 safety improvement program.