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Flight Corridor Safety Program – Phase I: Commission Agenda Item 6d

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Sea-Tac Airport
Flight Corridor Safety Program

The Port of Seattle Commission considered authorizing a contract for the Flight Corridor Safety Program Phase I, a tree and vegetation removal project at Sea-Tac Airport designed to clear obstructions from navigable airspace and meet FAA safety and compliance requirements. Although the lowest contractor bid came in 28% above the engineer's estimate — a threshold requiring special Commission approval — port staff recommended awarding the contract, noting that existing funds were sufficient and no additional budget was needed. Delaying the project risked FAA non-compliance, potential restrictions on flight approach and departure procedures, and the possible loss of millions of dollars in federal grant funding.

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Port Of Seattle Commission agenda item 6d, dated October 4, 2016, for meeting October 11, 2016. Authored by Michael Ehl, Director Airport Operations, and Wayne Grotheer, Director Aviation Project Management Group, to CEO Ted Fick. Requests Commission authorization to award a major public works construction contract for Flight Corridor Safety Program Phase I to the lowest responsible bidder, notwithstanding the low bid exceeding the engineer’s estimate by 28% (more than the 10% threshold under Port General Delegation of Authority Section 4.2.3.4). Four bids received and opened October 3, 2016. Total estimated project cost $2,731,000 (design $558,000, construction $2,173,000); no additional funds required. Scope includes tree/vegetation removal, grading, revegetation, and restoration at Sea-Tac Airport to comply with FAR Part 139, Advisory Circular AC 150/5300.13A, Grant Assurance 20, Grant Assurance 21, and RCW 14.12.020. FAA non-compliance risks include loss of up to $7.1 million in entitlement grant funding. Costs recovered from airlines via landing fees through the Airport Development Fund. Tagged pos_sm_2016_10_11.

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