Corps of Engineers: Improved Analysis of Costs and Benefits Needed for Sacramento Flood Protection Project
Abstract
Estimated costs for the Common Features Project rose from $57 million in 1996 to between $270 million and $370 million in 2002primarily because of design changes. For the American River, costs more than tripled from $44million to $158 million in 2002, primarily due to changes such as deepening the walls built in the levees (cut-off walls) to prevent seepage and closing gaps in the walls at bridge crossings. Cost estimates for the Natomas Basinstill in planningincreased from $13 million in 1996 to between $112 million and $212 million in 2002. The Corps has yet to analyze alternative flood protection approaches for the Natomas Basin that might be more cost effective. Furthermore, it has not analyzed its exposure to potentially significant cost increases for the Natomas Basin work.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 2003
- Accession Number
- AD1180213
Entities
People
- Anu K. Mittal
Organizations
- United States Government Accountability Office