Mrázovka Tunnel
Czechia · Městský okruh (Prague) · 1.3 km
What this restriction means
ADR assigns every tunnel a restriction category from A (no restrictions) to E (the strictest).
The strictest — closed to almost all dangerous goods, except a short listed set and small limited-quantity loads. Marked with an 'E' sign.
Official ADR wording
Restriction for the carriage of all dangerous goods other than those for which '(-)' is marked in column (15) of Table A of Chapter 3.2, and for all dangerous goods in accordance with the provisions of Chapter 3.4 (limited quantities) if the quantities carried exceed 8 tonnes total gross mass per transport unit. NOTE: for goods assigned to UN 2919 and 3331, tunnel-passage restrictions may instead form part of a special arrangement approved by the competent authority on the basis of 1.7.4.2.
Which cargo is affected
Category E tunnels are the strictest — virtually every dangerous good is restricted, with only a handful of narrow exemptions.
Restrictions & provenance
ADR category E (DG entry banned except UN 2919/3291/3331/3373) per B 18 + E 15 signage on the Mestsky okruh. Official trace: sign documentation of OOP S-MHMP 78083/2026PKD (18.02.2026) shows 'KATEGORIE E' at the Smichov approach shared with Strahov; Stavebnictvi 12/2015: DG carriage through operated MO tunnels banned, category E. Establishing OOP not published online.
Magistrat hl. m. Prahy, odbor pozemnich komunikaci a drah (OOP S-MHMP 78083/2026PKD, sign documentation)
Source ↗Plan compliant routes, end to end
A DGSA plus the platform turn tunnel codes into compliant routes, transport documents and driver instructions — not just a lookup.