Arizona Truck Bans & Hazmat Routes

Where Arizona keeps trucks out

Arizona has no parkway ban, but Phoenix hides a hazmat tunnel. The I-10 Deck Park Tunnel through downtown (around milepost 145) is closed to placarded hazmat; NRHM loads loop around it on I-17 (ADOT hazmat route map). The tunnel looks open, so a car GPS sends you straight in. The ban lives on the routing map. ADOT also holds heavy trucks to the right lane on I-10 near Phoenix. Legal height is 14 ft.

Key restrictions

• I-10 Deck Park Tunnel, downtown Phoenix (around MP 145, about 2,900 ft long): no placarded hazmat; NRHM loops around on I-17
• The tunnel looks open and a car GPS routes you straight in; the ban lives on the ADOT hazmat route map
• ADOT holds heavy trucks to the right lane on I-10 near Phoenix (Phoenix to Casa Grande)
• No parkway ban; legal height 14 ft

• Parkway / road ban: No parkway or cars-only bans. Phoenix has the I-10 Deck Park Tunnel hazmat restriction and a published city truck-route map.
• Hazmat: The I-10 Deck Park Tunnel in downtown Phoenix (around milepost 145) is closed to placarded hazmat. NRHM loads must route around it on I-17, and a segment of SR-202 has posted alternates as well (ADOT hazmat route map). Otherwise placarded loads follow Arizona-designated routes and 49 CFR 397.
• Through-truck routes: Phoenix publishes an arterial truck-route map, and ADOT restricts heavy trucks to the right lane on I-10 between Phoenix and Casa Grande. Through trucks follow posted routes; local deliveries get direct access. The hazmat detour around the Deck Park Tunnel is mandatory, not optional.
• Fine: Taking placarded hazmat through the I-10 Deck Park Tunnel instead of the I-17 route is a hazmat routing violation and can bring a citation plus liability for any incident. Amounts vary by court. Confirm current figures with ADOT and Arizona DPS.

More for Arizona