Hvalfjörður Tunnel
Iceland · Route 1 (Hringvegur) · 5.8 km
What this restriction means
ADR assigns every tunnel a restriction category from A (no restrictions) to E (the strictest).
Closed to loads that could cause a very large explosion — mainly large quantities of explosives and certain reactive gases, organic peroxides and self-reactive substances. Marked with a 'B' sign.
Official ADR wording
Restriction for the carriage of dangerous goods which may lead to a very large explosion. Goods deemed to meet this criterion: Class 1 compatibility groups A and L; Class 2 UN 3529; Class 3 classification code D (UN 1204, 2059, 3064, 3343, 3357, 3379); Class 4.1 codes D and DT and self-reactive substances type B (UN 3221, 3222, 3231, 3232); Class 5.2 organic peroxides type B (UN 3101, 3102, 3111, 3112). When net explosive mass per transport unit > 1000 kg: Class 1 Divisions 1.1, 1.2, 1.5 (except groups A and L). When carried in tanks: Class 2 codes F, TF, TFC; Class 4.2 PG I; Class 4.3 PG I; Class 5.1 PG I; Class 6.1 UN 1510.
Which cargo is affected
Category B tunnels restrict goods that could cause a very large explosion, mainly Class 1 explosives in large quantities.
Restrictions & provenance
Time-restricted
Base category B; escalates to category D in peak windows (Fri-Sun 10:00-22:00; Mon-Thu 15:00-20:00; holidays) for UN 1202, 1203, 1863.
Subsea tunnel; ADR category assigned nationally by gazette Nr. 781/2018 (not via UNECE 1.9.5). Base B bans large flammable-gas tanks + explosives >1000 kg.
Lögreglustjórinn á höfuðborgarsvæðinu (Stjórnartíðindi Nr. 781/2018); Reg. 1077/2010 Annex XV
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.