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In November
2004, Maricopa County voters approved a 20 year extension
of a half-cent sales tax until December 31, 2025, to fund
a comprehensive package of transportation improvements as
part of the Regional
Transportation Plan. Funding for the plan, which includes
$9 billion in regional freeway improvements in Maricopa
County, became effective January 1, 2006.
Freeway
planning to determine potential future corridors and freeway
improvements is conducted well in advance of design and
construction. Area population growth, future land use, jurisdictional
responsibilities and other factors are used to determine
the need, feasibility and general location of future freeway
improvements.
The
study stage establishes the location (alignment) and basic
characteristics (number of lanes, type of traffic interchange,
etc.) of a roadway. Accompanying this are environmental
studies (noise, economic impacts, etc.), identification
and evaluation of alternatives, general cost estimates,
coordination with public and private partners and the determination
of feasibility to move to the design phase.
The design
of a roadway involves several stages of detailed engineering
and technical review and interim levels of approval. Project
information is shared and discussed with the public at project
milestones, and public input is considered in the evaluation
of alternatives. The final design of the roadway is represented
in plans and specifications that construction contractors
use to prepare construction bids.
Road
construction for projects is based on detailed plans and
specifications provided to the contractor following the
approved design. As the construction process advances, changes
may occur that are influenced by a variety of factors. ADOT
continually looks for ways to improve the construction process
for maximum efficiency and minimal community impact. Once
built, a roadway will be maintained and improved over time
as a result of future growth and transportation needs.
Construction
| Loop
202 (Red Mountain Freeway) to Loop 202 (Santan Freeway) |
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Construction began in August 2008 with scheduled completion
anticipated Fall 2009. |
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Our
Valley Freeway System is part of the 2004 voter-approved
Regional Transportation Plan. We are working hard with
our transit partners to implement the voters’
vision and are committed to quality, safety, open communication
with our neighbors, and minimal inconvenience to the
traveling public. |
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