St. Lawrence Seaway: Estimates for the Asset Renewal Program Will Change, and Implementing Best Practices May Improve the Estimates' Reliability
DIANE Publishing, 2010 - 40 pages
The St. Lawrence Seaway (the Seaway) is a 50-year-old bi-national (U.S. and Canada) transportation asset serving substantial manufacturing and service industries in both the U.S. and Canada. The St. Lawrence Seaway Develop. Corp. (SLSDC), a wholly owned gov┐t. corp., operates and maintains the two locks. In 2009, SLSDC initiated a 10-year U.S. Seaway Asset Renewal Program (ARP) for its navigation infrastructure and facilities. This report examined: (1) How the cost estimates in the ARP have changed from Feb. 2009 to Feb. 2010; (2) The extent to which the ARP covers all asset renewal needs; and (3) The steps U.S. and Canadian authorities have taken to coordinate their asset renewal programs. Charts and tables.
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actual costs agency provided evidence ARP projects assessment Fully met/Substantially Assessment Guide asset renewal needs Asset Renewal Program best practices breakdown structure Canadian Seaway components concrete condition assessment contract awards cost elements cost estimate documentation cost-estimating process criterion cross-checked culvert valves detailed buildup Eisenhower and Snell Eisenhower Lock enclosure engineering equipment estimate to ensure Estimating and Assessment evidence that satisfies fiscal year 2009 Fully met/Substantially met/Partially GAO Cost Estimating guidewall high-quality cost estimates independent cost estimate infrastructure inspected interviewed SLSDC officials Lakes St Lawrence Seaway Study Lawrence Seaway System million Minimally navigation channel operating machinery percent phase point estimate project cost estimate project estimate Rehabilitate repair requirements risk and uncertainty rules and assumptions Saint Lawrence Seaway schedule Seaway International Bridge SLSDC awarded SLSDC data SLSDC Facilities Snell Locks snowplow south span spending plan structure U.S. and Canadian U.S. Army uncertainty analysis Upgrade variability between estimated vessels