Thousands of downtown residents are bracing for the sounds of overnight construction work undertaken by crews directed by the San Diego Metropolitan Transit System.
“Different sections of the track will undergo maintenance each night through Feb. 4,” MTS spokesman Hector Zermeño told NBC 7 on Thursday. “The track maintenance encompasses the entirety of the downtown loop.”
🚧Overnight track maintenance is underway through Feb. 4, 2026.
Nearby areas may experience noise between 11 p.m. and 4 a.m., six nights a week.
🚋 Trolley service is not impacted. pic.twitter.com/RyWCjqQxSh— San Diego MTS (@sdmts) January 8, 2026
The downtown loop, also known as the Silver Line, runs east on C Street to 13th Street, then hooks south on that corridor to before going west to Harbor Drive, where it continues back to C Street.
The work is expected to take place between 11 p.m. and 4 a.m. six nights a week, according to the MTS.
“In order to maintain safety and efficient operations, crews will be performing track maintenance,” the agency posted on social media on Thursday.
NBC 7 pressed Zermeño for a schedule on when work would be performed in specific sections but did not receive any exact details. Trolley service will not be impacted during construction, according to the MTS, but will “cause noise.”