 |
 
Main Menu  |
|
|||||||||||||||||
|
Click image for larger version of map |
Denny Way ClosureA portion of Denny Way between Broadway and 10th Ave. will be closed to traffic for approximately 6 years while the light rail station is under construction (see map ). The construction wall surrounding the work site will be extended across Denny, preventing public access to that portion of the street. A gate at either end of the road will allow construction vehicles into and out of the site. Construction wallsOne of the first tasks the contractor will undertake is to construct a portion of the walls that will surround the construction site for the next 6 years. The wooden walls are expected to be between 8 feet high facing Broadway and up to and 24 feet high facing 10th Ave. Sound Transit will be working with the community and local artists to design graphics for the exterior surface of the walls. |
Excavation
During this phase the contractor will grade the site to make it level, and begin digging out the area for the station. The excavation for the station is approximately 400 feet long, 100 feet wide, and 60 feet deep. All of the excavated dirt (also known as spoils) will be hauled away in trucks. The trucks will travel along the haul route identified by the City of Seattle - leaving the site they will travel west on Olive Way to I-5 and coming to the site they will travel east up Denny Way. The final disposal site for excavated material will be determined by the contractor. The majority of the hauling during this phase will take place during the daytime and, at times, possibly extending into the evening.
Once the excavation reaches the bottom of the station (approx. 60 feet down), a concrete slab 10 feet thick will be poured at the bottom of the excavation.
Tunnel Boring Machine
After the concrete slab is poured, the digging of the two tunnels to Pine Street will begin. A single tunnel boring machine (TBM) will be launched from the bottom of the station excavation. The TBM is scheduled to excavate an average of 40 feet of tunnel every day. As it bores through the ground, the TBM will also place the concrete rings that form the exterior surface of the tunnel. Dirt from the excavation travels through the machine and onto a conveyance system which brings it back out to the surface to be hauled away.
When the TBM reaches Pine Street, the TBM will be disassembled and transported back to the Station site, where it will be reassembled to dig the second tunnel between Capitol Hill and Pine Street. The tunneling is done in this direction because there is not sufficient room for all the equipment needed to extract the excavated dirt at Pine Street.
For safety, schedule and other reasons, the tunneling operations must continue around the clock. In order to minimize the traffic impact of the trucks hauling away dirt, most of the hauling is expected to be done in the evening and at night (7 pm to 7 am). Sound Transit has applied for a variance from the Major Project Permit in order to do the truck hauling at night (10 pm to 7 am).
Phase III: Station Construction
2013-2015
|
Click image for larger version of map |
Before the TBM has completed the second tunnel, another contractor will begin building the internal structure of the station - floors, stairs, mezzanines, elevators, etc. - and the three above-ground entrances to the station. Pedestrian TunnelAn underground pedestrian tunnel will provide direct access from the west entrance (next to Seattle Central Community College) to the mezzanine level of the rail station. While this tunnel is under construction, a portion of Broadway will be reduced to one lane in either direction, with no on-street parking. The pedestrian tunnel construction will take approximately six months, and will probably be one of the last activities in the station construction. |
Business Mitigation
Sound Transit and the Capitol Hill Chamber of Commerce are committed to implement a business mitigation plan to address the local business community's needs. Sound Transit has worked closely with the Capitol Hill Chamber and business community as a whole to develop a specific plan and strategy that meet the unique characteristics of the community. Two important elements of the business mitigation plan are promoting Capitol Hill as a great place to live, work, dine, shop and visit, and providing local businesses near or adjacent to the construction site with technical training to assist them in maintaining their customer base during construction.
 |
As part of our on-going business mitigation efforts for Capitol Hill, Sound Transit invites you to visit a new community website: Everything you want to do or see on Capitol Hill. |
For more information please contact: Rossana Garner at 206-689-3373 or via e-mail.
Transit Oriented Development
Sound Transit has begun a TOD work program to carefully consider the opportunities and constraints at work for parcels to be redeveloped following construction of the Capitol Hill Light Rail Station.
Learn more about Transit Oriented Development on Capitol Hill >>>
Learn More
U-Link Library
Images, maps, video
and presentations
See them here >>
Contact
Rhonda Dixon
Community Outreach Coordinator
401 S. Jackson St
Seattle, WA 98104
Phone:(206)370-5569
24 Hour Hotline:(888) 298-2395
rhonda.dixon@soundtransit.org
|
|
||||||
|
|
