Washington Metropolitan Area Transit Authority has released a request for proposal for design-build structural rehabilitation services on 21 bridges and aerial structures throughout its system. Bids are due for the up to $65-million contract at 2 p.m. on April 21. Major work items consist of pier cap retrofit, expansion joint replacement, anchor bolt replacement, concrete repair, protective coating of concrete and steel, safety walk and handrail replacement, bearing replacement, weld repair and fencing replacement. Washington Metropolitan Area Transit Authority, Attn: Robert Dixon, 600 5th St. NW, Washington, D.C., 20001-2610. DR#202200492011v1.