Design-build, progressive design-build, general contractor/construction manager procedures — Competitive bidding.
RCW 47.20.780
in effect(1) The department of transportation shall develop a process for awarding competitively bid highway construction contracts for projects that may be constructed using a design-build procedure, a progressive design-build procedure, or any general contractor/construction manager procedure. (2) As used in this section and RCW 47.20.785 : (a) "Design-build procedure" means a method of contracting under which the department of transportation contracts with another party for the party to both design and build the structures, facilities, and other items specified in the contract. (b) "General contractor/construction manager procedure" means a method of contracting under which the department of transportation selects a firm to provide services during the design phase, negotiate a maximum allowable construction cost, and act as construction manager and general contractor during the construction phase. (c) "Progressive design-build procedure" means a method of contracting under which the department of transportation selects a design-builder before the establishment of a final project design, price, and schedule, and thereafter, the department and design-builder collaborate to develop a final project scope, schedule, and price.
(1) The department of transportation shall develop a process for awarding competitively bid highway construction contracts for projects that may be constructed using a design-build procedure, a progressive design-build procedure, or any general contractor/construction manager procedure.
(2) As used in this section and RCW 47.20.785 :
(a) "Design-build procedure" means a method of contracting under which the department of transportation contracts with another party for the party to both design and build the structures, facilities, and other items specified in the contract.
(b) "General contractor/construction manager procedure" means a method of contracting under which the department of transportation selects a firm to provide services during the design phase, negotiate a maximum allowable construction cost, and act as construction manager and general contractor during the construction phase.
(c) "Progressive design-build procedure" means a method of contracting under which the department of transportation selects a design-builder before the establishment of a final project design, price, and schedule, and thereafter, the department and design-builder collaborate to develop a final project scope, schedule, and price.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=47.20&full=trueFetched: 6/29/2026