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The Door Track System for Hangar 23 has damaged/corroded anchor bolts that need to be replaced. This includes the corresponding foundations for the anchor bolts. There are also portions of the upper t... The Door Track System for Hangar 23 has damaged/corroded anchor bolts that need to be replaced. This includes the corresponding foundations for the anchor bolts. There are also portions of the upper track and associated structural framing that have lost material due to excessive corrosion. Those portions of the upper track will need to be repaired or replaced. Hangar 23 is a multi-use hangar. The hangar is a steel framed structure with metal siding and a metal roof. The hangar has a gabled roof, and the door track system is oriented perpendicular to the roof. There are four doors on either side of the roof centerline (Eight doors total). The doors travel on a lower rail track, and have a upper track that attaches back the hangar’s main structure. There are two end frames past the hangar perimeter walls that allow several of the doors to travel slightly beyond the hangar’s walls. MACC GROUP ID: ML-C00064 CONTRACT HOLDERS ONLY