If two or more counties in the state desire jointly or severally to make any agreement with federal agencies relative to flood control, they may enter into such agreements with any agency named in ORS 549.010 in accordance with all the provisions stated in ORS 549.010 and 549.020 that will facilitate cooperative action between boards of commissioners and federal agencies to meet conditions of any federal flood control Acts wherein the federal government is entirely financing such projects.
ORS 549.030