Exit 4 Truck Stops and Services | I-19 AZ

Navigating Exit 4 (SR 189 / Mariposa Road) on Interstate 19 puts Class 8 commercial drivers directly on Arizona?s primary international freight artery in Nogales. Serving as the essential connector to the Mariposa Port of Entry, this corridor handles high-density cross-border drayage, seasonal produce surges, and heavy northbound freight flow. Because I-19 utilizes kilometer-based signage, Exit 4 marks KM 4 along this critical trade route. Long-haul drivers and regional haulers staging for customs clearance must plan fuel, staging, and maintenance stops carefully. Utilizing nearby diesel bays and staging yards off Mariposa Road ensures seamless transit and regulatory compliance before jumping onto I-19 North toward Tucson.

Nearby Towns and Trucking Facilities

Located in western Nogales, Exit 4 surrounds massive industrial parks, produce distribution networks, bond warehouses, and drayage staging yards.

Driver Amenities and Rest Needs

Facilities around Mariposa Road include truck-friendly fast food, driver lounges, scale services, and commercial wash stations for refrigerated trailers.

Regulatory and Operational Information

ADOT operates an active Port of Entry weigh station on SR-189. Compliance regarding safety inspections and driver qualification follows FMCSA guidelines.

Fuel and Equipment Services

While Exit 4 directly serves the Mariposa border corridor, immediate fuel options are tailored to quick fill-ups, with expanded full-service truck stops situated nearby on I-19:

• Pilot Travel Center #1179
  Address: 330 N Mariposa Rd, Nogales, AZ 85621
  Phone: (520) 287-4800
  Services: High-flow diesel lanes, DEF pumps, restrooms, and driver convenience amenities situated right off Exit 4.
  Visit Pilot Flying J Website
• Love's Travel Stop #350 and Speedco (Nearest Full-Service Stop - Exit 12)
  Address: 739 E Frontage Rd, Nogales, AZ 85621
  Phone: (520) 860-6132
  Services: 8 diesel lanes, bulk DEF, Speedco light mechanical repair, tire service, commercial oil changes, and CAT scales located 8 miles north at Exit 12.
  Visit Love's Travel Stops Website

Parking and Staging

Commercial truck parking directly at Exit 4 is limited, but several reliable staging and parking areas operate along the Interstate 19 corridor:

• Love's Travel Stop #350
  Address: 739 E Frontage Rd, Nogales, AZ 85621 (I-19 Exit 12)
  Amenities: 79 dedicated hard-surface commercial truck parking spaces, 8 private showers, CAT scales, 24/7 lighting, and overnight staging capabilities.
• Pilot Travel Center #1179
  Address: 330 N Mariposa Rd, Nogales, AZ 85621 (I-19 Exit 4)
  Amenities: Limited short-term commercial truck parking spaces, convenient staging adjacent to the SR 189 freight corridor, diesel fueling, and restrooms.
• ADOT Canoa Ranch Rest Area
  Address: Interstate 19 at Mileposts 32-33 (approx. 28 miles north of Exit 4)
  Amenities: Official DOT rest area with dedicated semi-truck parking stalls, restrooms, vending, shaded seating, and well-lit overnight parking.

Frequently Asked Questions

Is SR-189 dedicated exclusively to commercial truck traffic?

SR-189 is heavily optimized with flyovers dedicated to cross-border freight.

Are reefers allowed to idle in staging yards here?

Idling rules vary, but designated reefer staging lots accommodate cooling units.

Where is the closest scale facility?

Certified scales are available at the commercial fuel stations along Mariposa Rd.