This project will install new 24” pipe to replace old, vulnerable and undersized 18” and 12” fireflow deficient leak prone pipe installed in 1909. Existing pipeline alignment is in residents’ backyards and the new pipeline will be realigned to County of Marin Open Space and an undeveloped City of Mill Valley parcel.
Schedule and Status
Planning: Spring 2012 – Spring 2026
Design: Spring 2026 – Winter 2027
Construction: Spring 2027 – Fall 2027
Contact Information
- Marin Water Construction Management team: 415-945-1560
Investing in your water system
The Fire Flow Improvement Program Mill Valley/ Alto Tunnel Pipeline Replacement Project will install new 24” pipeline to replace old, undersized 12” and 18” fire flow deficient pipe in the City of Mill Valley.
Funding Sources
| Capital Maintenance Fund | Fire Flow Improvement Program Fund | Total |
| – | $1,500,000 | $1,500,000 |