Alaska Truck Bans & Hazmat Routes
No parkways. Your one hard gate is the Anton Anderson Memorial Tunnel to Whittier, a single-lane bore shared with the Alaska Railroad. Placarded hazmat cannot drive through; it moves by rail (Alaska DOT&PF tunnel rules). Fuel is capped at 12 gallons of gasoline in a UL container, 100 lb of propane, one acetylene bottle. Normal max size is 14 ft high and 10 ft wide, 75 ft long; only scheduled special openings allow 15 ft high and 11 ft wide.
Where Alaska keeps trucks out
No parkways. Your one hard gate is the Anton Anderson Memorial Tunnel to Whittier, a single-lane bore shared with the Alaska Railroad. Placarded hazmat cannot drive through; it moves by rail (Alaska DOT&PF tunnel rules). Fuel is capped at 12 gallons of gasoline in a UL container, 100 lb of propane, one acetylene bottle. Normal max size is 14 ft high and 10 ft wide, 75 ft long; only scheduled special openings allow 15 ft high and 11 ft wide.
Key restrictions
- Whittier tunnel: no placarded hazmat through the bore (goes by rail)
- Whittier tunnel normal size cap: 14 ft high, 10 ft wide (excluding mirrors), 75 ft long; 15 ft high / 11 ft wide only during scheduled special openings
- Fuel limits through the tunnel: 12 gal gasoline in a UL container, 100 lb propane, one acetylene bottle
- Single-lane bore shared with the Alaska Railroad; timed alternating car/train schedule and a toll
- Parkway / road ban: No parkways. The Whittier (Anton Anderson Memorial) tunnel is the one hard access gate, with placarded-hazmat and size limits and a timed schedule.
- Hazmat: The Anton Anderson (Whittier) tunnel bans placarded hazmat from driving through; it moves by rail instead (Alaska Railroad). Only small fuel amounts pass: up to 12 gallons of gasoline in a UL container, up to 100 lb of propane in transport cylinders, and one acetylene bottle up to 400 cu ft. Elsewhere follow 49 CFR 397.
- Through-truck routes: Anchorage designates truck routes; statewide access follows the STAA National Network with oversize/overweight permits from Alaska DOT&PF. Through-truck bans are minor outside the Whittier tunnel gate and its timed alternating car-and-train schedule.
- Fine: Taking placarded hazmat through the Whittier tunnel, or exceeding its posted size limits, gets you turned away and cited under the tunnel regulations; a hazmat routing violation can add federal penalties and an out-of-service order. The tunnel also charges a toll. Confirm current fine amounts with Alaska DOT&PF or the tunnel operator.
Alaska Truck Route FAQ
Are there roads that ban trucks in Alaska?
What are the hazmat restrictions in Alaska?
What is the fine for a truck on a banned road in Alaska?
Reference information for planning, not legal advice. Traffic laws change and this can be out of date, so always confirm the current statute and obey posted signs before you rely on it. Last reviewed July 2026. Source: https://dot.alaska.gov/creg/whittiertunnel/tunnelregs.shtml. See our Terms & Disclaimer.
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