Supporting transportation system improvements by addressing utility facility removal and relocation responsibilities.

HB 1643 requires utility companies (like gas, water, and electric providers) to pay for relocating their infrastructure when road projects are part of private development agreements, as long as the project benefits the public and is included in an official plan. It modifies Washington state laws to ensure that utility relocation costs are borne by the utility franchise holder - not the government - when a private entity undertakes road improvements as a condition of development. The bill applies to state transportation departments, counties, cities, and towns, and defines "public interest" as general benefit to the public. This change aims to streamline transportation projects by clarifying that cost responsibility depends on public benefit, not who executes the road work.