I-10 Twin Peaks Traffic Interchange, Environmental Assessment

Affected Environment and Environmental Impacts October 2005
• Arizona Feeds/Alamo Saddlery/Bond’s Auction 9645 N. Casa Grande Hwy
• Arrow Pump/Linda Vista Rent All 9635 N. Casa Grande Hwy
• Quality Pallets 9625 or 9527 N. Casa Grande Hwy
• Classi Carts 9601 N. Casa Grande Hwy
• C & I Equipment 9421 N. Casa Grande Hwy
• Cardi Used Equipment 9241 N. Casa Grande Hwy
• Landscaping materials 9201 N. Casa Grande Hwy
Temporary Impacts
Access
Construction activities would produce temporary interruptions to roadways on the
east side of I-10. As a result of this, some short-term inconvenience would occur.
During reconstruction of the eastbound I-10 frontage road, business access to the
frontage road would be prohibited. To minimize impacts from these access
restrictions and eventual loss of access (discussed under permanent impacts
below), an access road would be constructed before frontage road reconstruction
occurs. The access road would intersect with the eastbound frontage road north
and south of the reconstruction area of the eastbound frontage road, providing a
frontage road bypass during reconstruction of the frontage road. The frontage road
would then be closed to traffic between the access road intersections until
reconstruction was complete. To allow complete circulation within the area, the
access road and the eastbound frontage road would remain two-way until the
reconstruction of the frontage road is completed. After construction is completed,
the eastbound frontage road would be changed to one-way operation, but the
access road would continue to have two-way operation.
Traffic Patterns/Service
Temporary impacts to traffic patterns and service would not be very burdensome
within the project area because Twin Peaks Road east of Continental Ranch and
the Twin Peaks Road TI do not exist; therefore, there is no traffic to displace
within most of the project area. The exception would be traffic that uses the atgrade
crossing of the UPRR at El Camino de Mañana. During the initial
construction phase, this at-grade crossing would be closed to traffic. The low
volumes of traffic that use this crossing would be required to use Cortaro Road or
another crossing of the UPRR. Because the only access point along the westbound
frontage road between Cortaro Road and Avra Valley Road is at El Camino de
Mañana, the westbound I-10 frontage road would be closed between Cortaro Road
and Avra Valley Road until construction was completed.
Interstate 10 Traffic Interchange at
Twin Peaks/Linda Vista
4-84
Project No.: NH-010-D (AIW)
TRACS No.: 10 PM 236 H5838 01D