Most expensive U.S. public works projects

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Below is a list of so-called "Megaprojects" that are among the most expensive in U.S history.

[edit] Highways

Projects to build new highways or improve existing ones, including roadways, bridges and tunnels. The list only includes projects that are underway; those still in planning are excluded until construction begins. Additionally, projects with multiple independent segments (i.e., I-69 Indiana-Texas Extension, Trans-Texas Corridor) are not included, though individual segments may or may not make the list.

1. Big Dig (1992-2006), Boston, Massachusetts, $14.6 billion^[1][2]

2. San Francisco-Oakland Bay Bridge East Span Replacement (2002-2013), San Francisco/Oakland, California, $6.3 billion

3. Mon-Fayette Expressway, southwest Pennsylvania, northern West Virginia, $5.0 billion ^[3]

4. Ohio River Bridges Project (2005-2020), Louisville, Kentucky, southern Indiana, $4.1 billion^[4]

5. Central Texas Turnpike (2001-2007), Area Around Austin, Texas, $3.6 billion^[5]

6. Woodrow Wilson Bridge Replacement (1999-2008), Washington, D.C., northern Virginia, southern Maryland, $2.5 billion^[6]

7. I-95 New Haven Harbor Corridor Reconstruction (2001-2016), New Haven, Connecticut, $1.4 billion^[7]

8. E-470 (1991-2003), Denver, Colorado, $1.2 billion^[8]

[edit] References