Name: Northgate Link Extension
Bid Date: 5/30/2013
Bid Time: 1:00 PM
Owner: Sound Transit
Description: : This Contract includes approximately 18,435 feet of segmentally lined, twin-bored running tunnels consisting of 3 reaches: 8,080 feet from the Maple Leaf Portal to the Roosevelt Station, 5,530 feet from the Roosevelt Station to the U District Station and 4,825 feet from U District Station to University of Washington Station (UWS). The work includes 23 cross passages excavated at intervals between the bored tunnels using sequential excavation methods. It also includes placement of the tunnel invert slab, walkways and utilities, as well as shoring, dewatering and excavation for the Maple Leaf Portal, Roosevelt Station and U-District Station.
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