Summary Scope of WorkPacHwy Envelope.pdf

Project: Design Build Pacific Highway LPOE Envelope Upgrade, Blaine WA

Summary of Scope:

The Pacific Highway (Hwy) Land Port of Entry (LPOE), located in Blaine WA, sits on an

11.8 acre site and consists of two buildings – the Auto/Bus and the Commercial/Warehouse buildings.

The Port, which was expanded and renovated in 1999, is the main commercial port of entry between the State of Washington and British Columbia, Canada, and is operated by US Customs and Border Protection (CBP). The LPOE facilities house several different Federal agencies responsible for protecting the border and facilitating border crossings. The LPOE operates 24/7/365.

The Auto/Bus building is a single-story automotive and bus processing building with 30,418 gross square feet (GSF). The Commercial/Warehouse building is a three-story commercial inspection and administration/head-house building, with an attached single- story Warehouse wing/building. The Commercial/head-house building and the Warehouse were originally constructed as separate buildings in 1999; however, a subsequent project, completed in approximately 2005, connected the two structures via a multi-story breezeway. The Commercial/Head-house building totals 67,013 GSF, and the Warehouse is estimated at 19,700 GSF.

Almost immediately after construction completion and initial occupancy back in 1999, the facilities started exhibiting signs of moisture infiltration and resultant water damage to varying degrees through the exterior envelopes of each of the Port’s buildings. As a result, GSA Region 10 has conducted several successive investigations and studies, along with some limited/spot repairs, over the ensuing years to document the infiltration and to determine possible root causes. The culmination of these efforts was a Project Development Study (PDS) that was completed in early 2016, the end result of which is this PacHwy Envelope Upgrade project.

Previous studies and investigations have revealed the presence of biological growth at the LPOE buildings, including, but not necessarily limited to, within the exterior envelope cavities, windows and doors, and interior surfaces.

The Design Build Project intent is to install a new exterior wall system and roof, and improve energy performance, at the LPOE’s two existing buildings; the Auto/Bus and Commercial/Warehouse buildings.

The exterior envelope (walls and roof) is to be replaced to stop water intrusion, and the scope involves the deconstruction and reconstruction of exterior walls and roofs, installation of waterproof materials, and improvements to the underlying insulation. While the exterior envelope is repaired, any biological growth encountered is to be handled according to appropriate removal and disposal procedures. This project may, as a result of the envelope repairs, also impact multiple building systems, including but not limited to: electrical; mechanical; plumbing; fire protection; HVAC, adjacent interior walls and finishes;

and security (IDS) systems. After envelope repairs are complete, the HVAC system will be tested and re-balanced to reflect the effects of the repaired envelope and provide efficient operations as a result.