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San Diego projects · Historical archive

Completed projects in San Diego.

Permanent source-backed records of documented openings and completions.

1 completed recordsOriginal evidence retained

Original sources reviewed 30 October 2026. Curated, not exhaustive.

Completed projects

1 permanent historical records

Rail & transit · Opened for passenger service

Mid-Coast Trolley Blue Line Extension

Completed UC San Diego Blue Line extension connecting Downtown to University City.

21 November 2021: SANDAG reports completion and opening of the 11-mile, nine-station extension.

Source evidence reviewed

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Projects move to this archive only after original evidence of completion or opening. Their article URLs do not change.

Current San Diego projects

Upcoming work, plans and documented construction.

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