Investment decisions, and the Economic Rates of Returns informing them, should be based on final design cost estimates. Prior cost estimates and designs based on pre-feasibility studies often led to overly risky investment decisions.
Lesson Learned
Official websites use .gov
A
.gov website belongs to an official government
organization in the United States.
Secure .gov websites use HTTPS
A
lock (
) or https:// means you’ve safely connected to
the .gov website. Share sensitive information only on official,
secure websites.