Katzenberg Tunnel (A3 near Würzburg)
Germany · BAB A 3
What this restriction means
ADR assigns every tunnel a restriction category from A (no restrictions) to E (the strictest).
No restriction — every dangerous good may pass. These tunnels carry no ADR tunnel sign.
Official ADR wording
No restrictions for the carriage of dangerous goods.
Which cargo is affected
Category A tunnels carry no ADR restriction — every class of dangerous goods may pass through.
Restrictions & provenance
Time-restricted
Baseline category A (no restriction). When temporary category E is activated on demand, no marking-required dangerous-goods transport units may pass; on-site signage governs.
Standing category A (no ADR restriction). Temporary category E may be imposed on demand / as required (incidents, works). Not to be confused with the Katzenberg railway tunnel on the Karlsruhe-Basel line.
Bundesministerium für Digitales und Verkehr (BMV)
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.