Caisson Load Testing Planned Week of Jan. 4‐8, 2010
The week of January 4
th‐8th, field engineers from the Dulles Corridor Metrorail Project will begin performing structural integrity tests on piers being built near Dolley Madison Road (Route 123) and the Dulles Connector Road (Route 267) interchange. The first of these tests is planned for Thursday, Jan. 7, 2010, at approximately 1:00 PM, weather permitting. This test will be performed on the right hand side of southbound Route 123 across the street from Anderson Road. It is between the Route 123 southbound ramp to eastbound Dulles Connector Road and the ramp for Dulles Connector Road eastbound to southbound Route 123.
This testing is a routine part of the construction program to collect data about the load capacity of caissons, which are the foundations that will support the aerial structures of the future Metrorail.
Some of this testing will sound like a knocking noise, and
a few short, loud blasts will occur. We want you to be aware in advance of this testing.
All work will be performed during daytime hours only (7 AM to 5 PM).
Additional testing along that stretch of Route 123 will continue through January, and installation of piers will continue through 2010.
We thank you for your patience.
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‐related emergencies, call the Project Hotline at 877‐585‐6789. For information about the project, visit www.dullesmetro.com or call 703‐572‐0506.
