This report presents the results of both a qualitative and quantitative analysis of the drainage problems associated with the South Branch, Upper Carmack watershed. Also included is an economic assessment of the damage potential associated with three distinct storm events.

The primary need for these realignments is due to the planned airport expansion at Tucson International Airport. The purpose of this report is to compare various alignment alternatives for the realignment on the basis of access, cost, right-of-way, and floodplain impacts.

The purpose of this study is to (1) develop a fundamental understanding of the problems that exist, and (2) perform a cursory examination of possible management approaches identifying those that appear most plausible for further consideration.

The Sutherland Valley is a broad, geologically-controlled floodplain. This study attempts to quantify the depth and extent of flooding so that floodplain permits can be issued for development which meets local and federal restrictions.

Photograph of swimming pool and concrete canopy, with view of Student Apse in background, at Cosanti in Paradise Valley, Arizona

Photograph of South Apse and ladder at Cosanti in Paradise Valley, Arizona

Photograph of Student Apse at Cosanti in Paradise Valley, Arizona

Photograph of swimming pool at Cosanti in Paradise Valley, Arizona

Photograph of Paolo Soleri looking at architectural drawings in the Drafting Studio at Cosanti in Paradise Valley, Arizona

Photograph of bronze bell windchimes hanging from South Apse at Cosanti in Paradise Valley, Arizona