CH2M Hill Constructors Inc., Englewood, Colorado (N62470-13-D-6019); Environmental Chemical Corp., Burlingame, California (N62470-13-D-6020); Kellogg, Brown & Root Services Inc., Arlington, Virginia (N62470-13-D-6021); URS Group Inc., Morrisville, North Carolina (N62470-13-D-6022), are awarded an $86,000,000 modification to increase the maximum dollar value of an indefinite-delivery/indefinite-quantity, multiple award contract for global contingency construction projects worldwide. The construction and related engineering services would respond to natural disasters humanitarian assistance conflict, or projects with similar characteristics. Work will be predominately construction. The contractor, in support of the construction effort, may be required to provide initial base operating support services, which will be incidental to construction efforts. After award of this modification, the total cumulative contract value will be $886,000,000. Work will be performed worldwide and the term of the contract is not to exceed 68 months with an expected completion date of February 2019. No funds will be obligated at time of award, funds will be obligated on individual task orders as they are issued. The Naval Facilities Engineering Command, Atlantic, Norfolk, Virginia, is the contracting activity.