Category talk:Proposed tunnels in Russia
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Categories:
- Category-Class Russia articles
- NA-importance Russia articles
- NA-importance Category-Class Russia articles
- Category-Class Russia (technology and engineering) articles
- Technology and engineering in Russia task force articles
- Category-Class Russia (economy) articles
- Economy of Russia task force articles
- WikiProject Russia articles
- Category-Class Bridge and Tunnel articles
- NA-importance Bridge and Tunnel articles
- WikiProject Bridges and Tunnels articles
- Category-Class Engineering articles
- NA-importance Engineering articles
- WikiProject Engineering articles
- NA-Class CE articles
- NA-importance CE articles
- WikiProject Civil engineering articles