WATCH HERE WATCH HERETo accommodate construction, Runway 9-27 will be closed, with very limited availability, for 75 days starting on Aug. 31. During the runway closure, Logan airport will have reduced runway capacity, which could impact the number of planes that can safely arrive and depart. As part of the project, a deck supporting the Engineered Material Arresting System will be built partially over the water. The Engineered Material Arresting System is typically used at airports where space beyond he runway is limited due to water or changes in terrain, Massport said. Logan Airport already has two other Engineered Material Arresting System installations in service, one at the end of Runway 22R and another at the end of Runway 33L.