Cost Comparisons (November 9, 2010):
High level cost comparisons follow that show the magnitude of costs of the three base options. The reader should note that these estimates are not detailed, and do not reflect actual design cost estimates, but only a gross scale relative comparison between the options.
The “Possible Enhancements” items show a relative scale for various design features that may be desirable. These costs would be added to the Total Typical Street Cross Section numbers, and are included to give a perspective for decision making.