Designed by Brown and Caldwell, an environmental engineering and construction firm, Hawaii’s largest ever wastewater system upgrade has been officially completed.
The upgrade improves Windward Oahu’s sewage collection and treatment system by connecting the Kaneohe Wastewater Pre-Treatment Facility (KWWPTF) to the Kailua Regional Wastewater Treatment Plant (KRWWTP) via a three-mile long, 10-foot diameter gravity sewer tunnel. Wastewater flows via gravity from a depth of 39-feet below ground level at the KWWPTF to a depth of 77-feet below ground at the KRWWTP. The route travels under the Oneawa Hills in order to avoid Kaneohe Bay and any sewage overflows into the environmentally sensitive public resource.
Brown and Caldwell also designed a 45 million gallons per day Tunnel Influent Pump Station to lift wastewater to the surface for treatment at KRWWTP. The project also includes a new 15 million gallons per day replacement for the existing Kailua Influent Pump Station, a generator and headworks buildings, and odor control facilities.
Because the new tunnel system conveys wastewater via gravity rather than pressure, three upstream pump stations and a three-mile long force main (all potential community overflow points) were able to be eliminated.
Related Stories
| Aug 11, 2010
Construction employment declined in 333 of 352 metro areas in June
Construction employment declined in all but 19 communities nationwide this June as compared to June-2008, according to a new analysis of metropolitan-area employment data released today by the Associated General Contractors of America. The analysis shows that few places in America have been spared the widespread downturn in construction employment over the past year.
| Aug 11, 2010
Jacobs, Hensel Phelps among the nation's 50 largest design-build contractors
A ranking of the Top 50 Design-Build Contractors based on Building Design+Construction's 2009 Giants 300 survey. For more Giants 300 rankings, visit http://www.BDCnetwork.com/Giants
| Aug 11, 2010
Steel Joist Institute announces 2009 Design Awards
The Steel Joist Institute is now accepting entries for its 2009 Design Awards. The winning entries will be announced in November 2009 and the company with the winning project in each category will be awarded a $2,000 scholarship in its name to a school of its choice for an engineering student.
| Aug 11, 2010
Arup, SOM top BD+C's ranking of the country's largest mixed-use design firms
A ranking of the Top 75 Mixed-Use Design Firms based on Building Design+Construction's 2009 Giants 300 survey. For more Giants 300 rankings, visit http://www.BDCnetwork.com/Giants
| Aug 11, 2010
Structure Tone, Turner among the nation's busiest reconstruction contractors, according to BD+C's Giants 300 report
A ranking of the Top 75 Reconstruction Contractors based on Building Design+Construction's 2009 Giants 300 survey. For more Giants 300 rankings, visit http://www.BDCnetwork.com/Giants
| Aug 11, 2010
SSOE, Fluor among nation's largest industrial building design firms
A ranking of the Top 75 Industrial Design Firms based on Building Design+Construction's 2009 Giants 300 survey. For more Giants 300 rankings, visit http://www.BDCnetwork.com/Giants
| Aug 11, 2010
Best AEC Firms of 2011/12
Later this year, we will launch Best AEC Firms 2012. We’re looking for firms that create truly positive workplaces for their AEC professionals and support staff. Keep an eye on this page for entry information. +
| Aug 11, 2010
Manitoba Hydro Place, Tornado Tower among world's 'best tall buildings,' according to the Council on Tall Buildings and Urban Habitat
The Council on Tall Buildings and Urban Habitat last week announced the winners of its annual “Best Tall Building” awards for 2009, recognizing one outstanding tall building from each of four geographical regions: Americas, Asia & Australia, Europe, and Middle East & Africa. This year’s winners are: Manitoba Hydro Place, Winnipeg, Canada; Linked Hybrid, Beijing, China; The Broadgate Tower, London, UK; Tornado Tower, Doha, Qatar.
| Aug 11, 2010
Nation's first multi-story green industrial facility opens in Brooklyn
The $25 million Perry Avenue Building at Brooklyn Navy Yard is the nation's first multi-level green industrial facility and the first building in New York City to incorporate building-mounted wind turbines. The wind turbines, along with rooftop solar panels, will provide electricity for the building's lobby and common areas.