Northern Arizona University

Senior Capstone Project Spring 2006

Design Assumptions

The following assumptions were made throughout the design process.


 The City of Flagstaff will allow the removal of a specific section of guard rail on Amberwood Street.

 The City of Flagstaff will allow the Grade easement to be encroached upon for the foundations of our bridge.

 The information in Caltrans is comparable to the construction cost in Arizona.

 The existing soil has enough bearing capacity to support a bridge structure.

 The survey data from Northland Exploration is accurate.