Part of the San Diego Clean Water Program a $1.5 billion Capital Improvement Program required the construction and installation of the Point Loma Outfall Extension late in 1992. This included a 12,246 foot-long 144" ID reinforced concrete pipe outfall extension to the existing 108" ID 11,226 foot-long outfall. Making this one of the largest and deepest outfalls in the world.
Iona Group marine project inspection experience includes
- Offshore 144" RCP Outfall Construction Inspection
- Outfall Wye Structures Inspection
- Onshore 108" Outfall Connection Structures Inspection and Encasement
- Outfall Reinforced Concrete Pipe Inspection
- Underwater Inspection utilizing Remote Operated Vehicle for Pipe, Pipe Joint Gap, Bedding and Ballasting
- Outfall pipe bedding and ballasting inspection using profiling/imaging sonar’s
- Inspection of pier construction
Pipe laying barge "Betty L"
Inspection of the first 144" x 20' pipe sections at Long Beach prior to barge transportation. Each of the more than 600 pipe sections weighing 70 tons.
Outfall Pipe Bedding Screed being transported to work the site.
The intermediate wye structure
Pick of the 250-ton intermediate wye structure lowered to the ocean floor at 210-ft water depth
"Betty L" with the 250-ton intermediate wye structure alongside