The Rock Creek Advanced Wastewater Treatment Facility Gravity Thickeners project for Clean Water Services in Hillsboro, Oregon is really showing progress. The team has poured approximately 3,000 cubic yards of concrete since July 2014. The picture below shows two of the four 50-foot diameter tanks completed with the remaining two 50-foot diameter tanks being formed. To … Continue reading Rock Creek Gravity Thickeners project taking shape
Aging infrastructure is a growing concern for municipalities across the United States. Trenchless Technology magazine’s cover story discusses how trenchless means and methods can be used for repairing force mains. Click here for a link to the article.
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
The award-winning design of the new Lake Oswego Interceptor Sewer replaced a deteriorating sewer pipeline beneath the 415-acre Oswego Lake. Working around quiet, residential streets in an affluent suburb, the lake down contract involved installation of more than 7,300 feet of previously fused, large-diameter, high-density polyethylene pipe to connect the buoyant interceptor to the existing … Continue reading Lake Oswego Interceptor Sewer – Lake Down awarded second place in annual DJC Top Projects
Constructing pipelines and shafts to control combined sewer overflows is no simple matter, especially when doing so through a former landfill. Working their way through fragments of glass, brick, wood, wire and sheet metal, in addition to unexpected boulders and even an automobile chassis, project team members for the Balch Consolidation Conduit Shafts and Pipelines … Continue reading Balch Consolidation Conduit Shafts & Pipelines awarded second place in annual DJC Top Projects