COLUMBIA INTERSTATE TUNNEL - CIT

COLUMBIA INTERSTATE TUNNEL - CITCOLUMBIA INTERSTATE TUNNEL - CITCOLUMBIA INTERSTATE TUNNEL - CIT

COLUMBIA INTERSTATE TUNNEL - CIT

COLUMBIA INTERSTATE TUNNEL - CITCOLUMBIA INTERSTATE TUNNEL - CITCOLUMBIA INTERSTATE TUNNEL - CIT
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    • Tunnel Cross-Section
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About Tunnel Solution

Adding 4 full traffic lanes with the Tunnel Option

Conceptual layout for adding traffic lanes to the existing infrastructure.  A new bridge will not help nor alleviate the lack of traffic lanes in North Portland.

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