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. Interstate 69 Extension SIU #3 (2008-2018), Evansville to Indianapolis, Indiana, $1.8 billion.[7]
- 8. I-95 New Haven Harbor Corridor Reconstruction (2001-2016), New Haven, Connecticut, $1.4 billion[8]
- 9. E-470 (1991-2003), Denver, Colorado, $1.2 billion[9]
[edit] References - ^ Central Artery/Tunnel Project Website
- ^ Boston’s ‘Big Dig’ opens to public, MSNBC, December 20, 2003
- ^ Turnpike panel says high costs imperil Mon-Fayette, Southern Beltway projects, Pittsburgh Post-Gazette, April 27, 2007
- ^ Louisville Bridges Cost Now $4.1 Billion, The Urbanophile, October 6, 2007
- ^ Federal Highway Administration, Central Texas Turnpike Fact Sheet
- ^ Woodrow Wilson Bridge Replacement Website
- ^ I-69 Indianapolis to Evansville Corridor Study
- ^ COG panel OK with $498M spike in Q bridge cost, New Haven Register, August 9, 2007
- ^ Final leg of E-470 nears completion, Denver Business Journal, December 13, 2002
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