9 quick facts about how U Link was built
Building the University of Washington and Capitol Hill light rail stations and the 3.15-mile tunnels from downtown Seattle was an amazing undertaking.
Here’s a few quick facts that make U Link amazing:
- To get from downtown Seattle to Capitol Hill, a tunnel boring machine had to dig just 15 feet under busy I-5.
- The 10-foot-thick University of Washington Station floor required about 7,000 cubic yards of concrete, 20,000 linear feet of electrical conduit and a million pounds of rebar.
- The bright red construction crane that worked for years on the Capitol Hill Station was strong enough to lift the equivalent of 11 railroad cars.
- Over 30,000 square feet of tile were used in the University of Washington Station.
- The deepest part of the U Link tunnels is 300 feet under Volunteer Park on Capitol Hill.
- The University of Washington Station platform holds up to 1,500 passengers—perfect for game day at Husky Stadium.
- A tunnel boring machine dug just 15 feet under the waters of the Montlake Cut.
- Permeable pavement throughout the University of Washington Station reduces the potential for flooding and cleans stormwater before entering Puget Sound.
- The 10-foot-thick station floor at Capitol Hill required about 6,000 cubic yards of concrete.