Wastewater transmission-line realignment is inching ahead after drilling components were assembled in an open pit in Old Town Victorville on Monday. Later this week, construction crews will tunnel north from the pit at Seventh and C streets and push pipeline casings toward a similar pit being dug north of D Street and the BNSF railroad tracks. The … Continue reading Pipeline replacement project inching along
The 350-foot microtunnel drive on the SW 86th Avenue Pump Station & Appurtenances project reached the reception shaft on Monday, June 30, 2014. Congratulations to the crew on a successful drive!
This project included construction of launch and retrieval shafts and 2,100 feet of 114-inch segmentally lined tunnel with an 85.5-inch diameter final liner. Additionally, two existing 36-inch wood stave pipelines were slip-lined with steel liners. Common when the siphon was originally constructed, the original pipes were similar to wooden barrels with metal compression bands holding the … Continue reading Ballard Siphon Replacement Rebid
In the early hours of the morning on May 1, 2013, microtunneling contractor James W. Fowler Co. broke through on the third of four drives for the Santa Ana River Interceptor (SARI) Relocation – SARI Mainline project, completing a difficult and record-setting drive that marked the longest S-curve completed in the United States to date. … Continue reading Pushing the Boundaries – Historic Santa Ana River Interceptor Project Completed in Southern California
Designed as a typical microtunnel project with several short, straight drives, the SARI Mainline offered JWF the perfect opportunity to offer an innovative value engineering proposal to eliminate shafts and combine multiple drives on the project. This saved the Orange County Sanitation District over $1 million and offered a 20% reduction in the tunneling schedule. … Continue reading Santa Ana River Interceptor (SARI) Relocation – SARI Mainline Project
For any tunnel project, gaining access to the underground is a critical – if sometimes overlooked – component. The building of vertical shafts is the most common method of getting men and material into and out of the tunnel, but shaft construction is no easy matter due to challenging soils, the presence of groundwater, conflicting … Continue reading Reaching New Depths
King County is getting ready to use a shaft excavation machine that will be the first of its kind in North America. James W. Fowler Co., the general contactor, is using it to build a 30-foot diameter, 145-foot deep launching portal for a tunnel boring machine. It’s all part of a $38 million project to … Continue reading Use of German excavation machine on Ship Canal tunnel a first for U.S.