This is a Sources Sought announcement only, not a solicitation, and no contract will be awarded from it. The Government seeks potential sources capable of constructing an aircraft parking apron at Royal Australian Air Force Base Tindal, Australia, primarily for six large-frame aircraft, including shoulders, multiple taxiways, runway connections, utilities, airfield lighting, grading and drainage, access roads, site preparation, and a Type III in-ground hydrant fueling system. The anticipated construction magnitude is between $150,000,000 and $200,000,000. The applicable NAICS may be 237310 (Highway, Street, and Bridge Construction) with a $45 million size standard. Interested capable sources are invited to submit the attached questionnaires by email; telephone calls and facsimiles will not be accepted.