Tucson road construction

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TUCSON, Ariz. -- Starting Tuesday, construction is set to begin on the rebuilding of the Valencia-Alvernon interchange.

Transportation officials say construction should take about six months to complete.

And paving gets underway Tuesday morning on Tanque Verde between Catalina Highway and Houghton.

All businesses along tanque verde will remain open during their normal business hours.

The speed limit will be reduced to 25 miles per hour.  Construction is expected to be completed by July 11.