2023 ST VSL Pullman Fairfair Suisun Project Tour Email Rev

Join us for an On-going Project Site Visit & Technical Discussion of an Existing Digester Tank Repair.

We cordially invite you to view ongoing post-tensioning repair and ring beam replacement work on an existing digester tank at the Fairfield-Suisun Sewer District Wastewater Treatment Plant at 1010 Chadbourne Road in Fairfield, CA.

Fairfield-Suisun Sewer District has a 100-ft diameter digester tank which experienced a failure of the post-tensioned ring beam designed to support the tank’s concrete dome roof. A technical presentation on the ring beam strengthening along with an innovative temporary shoring technique will be highlighted. A lunch and networking reception will take place following the tour.

Your Host: Structural Technologies, PULLMAN and VSL providing evaluation, engineering/design and installation throughout N. America mobilizing locally from their office in Benicia, California.

Your Co-Hosts: The Fairfield-Suisun Sewer District (located approximately 40 miles Northeast of San Francisco) which currently serves over 135,000 residential, commercial and industrial customers throughout Solano County. Along with owning and operating a system of sanitary sewers & pumping stations, FSSD oversees wastewater treatment, recycling, and stormwater management.


10:00 am – 10:15 am Introductions – FSSD, Project Team​
10:15 am – 11:00 am Project background, description of work, temporary shoring design using post-tensioning, seismic analysis, repair implementation
11:00 am – 12:30 pm Site visit with live observation of digester tank post tensioning installation and on-going repair implementation
12:30 pm – 1:00 pm Lunch, open discussion, and networking