The previous estimate for the Union Station modernization was that it would cost $10B. Even with the inflation in labor and construction materials, this is a significant cost savings. i think this probably comes from the reduction in the amount of parking.
Feds release updated $8.8 billion redevelopment plan for Union Station
The revised vision for the rail station includes less parking, an underground drop-off area, and integrated bus, pedestrian and bike access
By Luz Lazo
Washington Post
May 13, 2023
A rendering of the new train hall planned at Union Station as part of a multibillion-dollar redevelopment. (Rendering courtesy of the Washington Post)
"The Federal Railroad Administration unveiled a revised concept late Friday for the redevelopment of Union Station, laying out a future transit hub with far less parking, pickup and drop-off traffic below ground, and more fully integrated access for pedestrians, bikes and buses.
The new plan comes two years after the federal agency paused its analysis of the project to amend key aspects that were widely criticized as keeping the station too car-centric. The District had opposed a multilevel parking garage featured in a vision released three years ago, while officials and residents demanded better access for foot and bike traffic.
The proposed expansion of the 115-year-old train hub, estimated in the report to cost $8.8 billion for construction alone, calls for a transformation of the nation’s second-busiest intercity rail hub by 2040. It will add wide rail platforms, an integrated bus terminal, a new train hall and updated concourses lined with shops and restaurants that provide easy access to Metrorail, buses, taxis, ride-shares, streetcars and parking. The station’s historic main hall will be preserved..."
https://www.washingtonpost.com/trans...redevelopment/