FIFE – Setting the second longest pre-cast concrete girders in the world will close both directions of Interstate 5 in Pierce and King counties overnight on Friday, Sept. 27 and Saturday, Sept. 28. This is the first of four consecutive weekends the interstate will be closed overnight between State Route 18 in Federal Way and 54th Avenue East in Fife to build a new bridge and tear down an old one. The remaining overnight closures for I-5 are scheduled for Oct. 4-6, Oct. 11-13 and Oct. 18-20. In addition, the Sept 27 and 28 weekend work coincides with highway closures in King County on I-405, SR 167 and SR 520. Drivers are urged to prepare now for all of the closures. The I-5 detour route does not have the same capacity as I-5 and alternate routes in the area are limited.