SR 189

NOGALES – The Arizona Department of Transportation is nearing completion on the $134 million project to improve international trade and safety on the 3.75-mile State Route 189, with a new connection that more seamlessly links the international port of entry at Mariposa Road with Interstate 19.

NOGALES – As crews with the Arizona Department of Transportation continue working on improvements to State Route 189 in Nogales, the flyover ramps connecting SR 189 and Interstate 19 are now open to traffic.

The ramps connect northbound and southbound directions where the highways intersect, which will improve safety and the flow of international commerce. 

After a year's work, the new ramps connecting SR 189 and I-19 are almost ready. And with them, a better day for commercial trucking and safety in Nogales.

Does the new interchange at SR 189 and I-19 give you butterflies too? Learn why and how monarch butterflies are being incorporated into the design.

PHOENIX – Drivers on State Route 189 in Nogales should plan for possible delays between Frank Reed Road and Interstate 19 as work crews shift traffic to continue work on flyover ramps connecting SR 189 and I-19.

Lane closures will alternate over the next several months while crews continue work on the ramps, which will remove delays for commercial trucks carrying international commerce and improve safety in the area of Nogales High School.

Mariposa means butterfly in Spanish, so we are giving you a butterfly's view of the improvements to State Route 189, Mariposa Road, in Nogales.

A part of ADOT employee Gaby Gonzalez Kemp's heart will always be in her hometown of Nogales. That's why she is glad to see the improvements coming to State Route 189.

PHOENIX – An Arizona Department of Transportation project that will speed up international commerce, boost the economy and make Nogales traffic safer has begun near Arizona’s southern border.

To make way for improvements to State Route 189 (Mariposa Road) in Nogales, the 3.75-mile road that connects the international border with Interstate 19, crews have been clearing brush from the path of the first of two flyover ramps that will connect northbound SR 189 with northbound I-19. Construction is scheduled to start in earnest next week and take about 18 months.   

On March 4, Governor Doug Ducey and others gathered in Nogales to break ground for a project improving State Route 189, the 3.75-mile state highway connecting the Mariposa Port of Entry and Interstate 19.

PHOENIX – Governor Doug Ducey and state, local and federal officials today broke ground on a $134 million project to improve mobility and safety on a 3.75-mile Nogales highway. The project, once completed, will help increase international trade coming through Nogales by linking the Mariposa Port of Entry and Interstate 19.

PHOENIX – With construction approaching on State Route 189 improvements in Nogales, an open house this week provides an opportunity to learn more about the $134 million project.

The Arizona Department of Transportation will hold an open house from 5 to 7 p.m. Thursday, Feb. 20, at Nogales High School, 1905 N. Apache Blvd. The project team will make a short presentation and then be available to provide information.

Connecting the Mariposa Port of Entry with I-19 in Nogales, State Route 189 is about to get an upgrade that will ease congestion, aid commercial travel and support Arizona's economy.

Busy year in southern Arizona

Funding all planned improvements along SR 189 in Nogales and creating a safety training program for trucking firms in Mexico both are aimed at boosting international trade and Arizona's economy.

Work to begin in 2019

NOGALES – The Federal Highway Administration has cleared the way for the Arizona Department of Transportation to begin design and construction of vital improvements to State Route 189, the 3.75-mile roadway connecting the Mariposa Port of Entry with Interstate 19 in Nogales.

NOGALES ‒ The Arizona Department of Transportation has applied for a $25 million federal TIGER grant to allow construction of all proposed improvements to State Route 189 in Nogales at the same time, beginning in 2019.

The $25 million Transportation Investment Generating Economic Recovery grant would go toward construction of a southbound flyover ramp at Interstate 19 in addition to the northbound flyover ramp that’s currently funded, as well as a bridge over Frank Reed Road and other improvements to the 3.75-mile route connecting the Mariposa Port of Entry with I-19.

ADOT is looking to improve SR 189 (Mariposa Road) so it can handle increased traffic from the Mariposa Port of Entry.

NOGALES – A public hearing on Tuesday, Jan. 31, is a chance for the community to review and comment on the Draft Environmental Assessment for a project to improve State Route 189 between the international border, Interstate 19 and Grand Avenue. 

Scheduled for 5:30 p.m. to 7:30 p.m. in the cafeteria of Nogales High School, 1905 N. Apache Blvd., the hearing begins with a presentation at 5:45 p.m., followed by a formal comment period.