US 93: Wickenburg to Santa Maria River

Location/Design Concept Study and Environmental Studies

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SR 89 to Wickenburg Interim Bypass

Wickenburg   (SR 89) to Santa Maria River

Interim Improvement Project

Wickenburg Bypass

Related Studies

Study Team


What's New

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Interim Improvement Project


Current Status

  • Final design is underway.
  • An environmental re-evaluation is underway to evaluate the impacts associated with the proposed design changes presented at the public information meeting held on December 14, 2004.
  • Construction is anticipated to begin in fall 2006.

Study Process

The graphic at left shows the steps that were completed for the Interim Improvement study. Federal Highway Administration (FHWA) and ADOT acceptance of the study findings was reached on October 3, 2003.



Study History

Public and agency scoping meetings were held in June 1999 to identify issues, concerns, and opportunities (ICOs) relative to the proposed bypass corridors and the improvements north of Wickenburg. Based on public opinion surveys and the input received at the scoping meetings, the Study Team established engineering and environmental evaluation criteria to be applied to the improvement alternatives.

A feasibility study was completed in February 2000 to investigate possible interim improvement alternatives that could relieve the congestion on an interim basis until the US 93 bypass can be funded and constructed. Three alternatives - numbers 7, 10, and 13 - were recommended for further development. ADOT later investigated Alternative 10 in a separate Project Assessment.

A public information meeting was held in Wickenburg in August 2000 to inform the public of the array of alternatives initially considered for the bypass corridor, the interim improvements, and the widening of US 93 north of Wickenburg, as well as which of those alternatives would be carried forward for further study. Based on input received at the meeting, the study team combined the best features of each alternative and incorporated suggestions from the public to develop Alternatives 14, 15, and 16.

public information meeting was held in Wickenburg on December 5, 2001, to solicit input on the interim improvement alternatives and inform the public about the status of the bypass study. The information was used to refine the recommended design concept for the interim improvement project.

The development and evaluation of the alternatives was then documented in the Initial  Design Concept Report (DCR) and Draft Environmental Assessment (EA). These documents were made available for public review on June 19, 2002, at the Wickenburg Town Hall and Wickenburg Public Library. The Draft EA was also available for viewing on the project web site.

The recommended design concept, Alternative 16, was refined and presented for public comment at a public hearing on July 11, 2002. Based on the input received at the public hearing, a Final DCR and Final EA were completed. After review of the final documents, FHWA issued a Finding of No Significant Impact on October 3, 2003.



This page updated: November 18, 2005.