What are they building down there?

You may not be able to hear the rumbling from the street, but Bertha is now tunneling through Zone 8.  As of December 15, she has traveled 6,646 of 9,270 feet and the tunnel is now 70% complete. Seattle Tunnel Partners have placed over 1,000 rings that form the 1.7-mile tunnel. When the tunnel is done, it will have 1,426 rings. 

Here’s Bertha decorated for the holidays. 

She has approximately 2,600 feet to go in her tunneling journey where she’ll reach daylight at a large pit just north of Thomas Street, near the operations building. STP will then focus on removing the massive machine in pieces from the pit as they continue building the double-deck highway inside the tunnel.

What does it look like while they are working under there? Check out this amazing video of the crew building the walls as Bertha tunnels.  

You can check her progress at the street level when WSDOT posts photos of her progress on twitter at #BalloonsOverBertha. The balloons are only out long enough to take a photo, so the best view is on twitter @BerthaDigsSR99

STP will stop mining between Christmas and New Year’s, but other work will continue during that period.  STP project manager Chris Dixon said the infrastructure part of the tunnel catches up when Bertha takes a break for maintenance. When Bertha restarts, the machine speeds ahead of the infrastructural work.

STP project manager Chris Dixon said the infrastructure part of the tunnel catches up when Bertha takes a break for maintenance. When Bertha restarts, the machine speeds ahead of the infrastructural work.

Recently in the DJC: 

Tunnel is now 70% complete with Bertha running well, soil ‘behaving’

WSDOT updates state about its budget for building the tunnel

More information from WSDOT: 

Dec. 16 project update: Get ready for the year of the north portal

Another way to track Bertha’s progress – #BalloonsOverBertha 

Posted in Construction, DJC, Engineering, Landmarks, Projects in progress, transportation | Comments Off on What are they building down there?

The ‘shimmering veil’ of San Antonio

Check out the before and after photos of the San Antonio Tobin Center for the Performing Arts


The Tobin Center won a 2016 Global Award for Excellence from Urban Land Institute.  Seattle-based LMN Architects was the design architect and Marmon Mok Architecture of San Antonio was the associate architect, according to a press release from LMN.

The 26,000-square-foot Spanish Colonial-style Municipal Auditorium was originally built in 1926.  The historic facade was retained during the 2014 renovation and another 157,000 square feet were added. 

The center has two performance spaces: a 1,768-seat main performance hall and 231-seat flat-floor studio theater. There is also a new lobby and support facilities.

LMN said the new and old components were integrated in a “grand, unifying design gesture.”

The center has a porous, shimmering metallic veil that is designed to celebrate San Antonio’s cultural life. The veil begins at San Antonio’s famed River Walk, and rises through irregular sheer planes to form an architectural presence.  

Via Fisher Heck Architects 

1965 via Fisher Heck Architects 

1924 via Fisher Heck Architects 

More on the Urban Land Institue 2016 Global Awards for Excellence.

More on the Tobin Center for the Performing Arts.

More from Fisher Heck Architects

Recently in the djc: 
LMN wins ULI award for San Antonio arts center with a ‘shimmering veil’.

Posted in Architecture, Awards, Building Green, DJC | Comments Off on The ‘shimmering veil’ of San Antonio

Pioneering project upgraded to Passive House Plus

DARMSTADT, GERMANY – The world’s first Passive House building has increased its already high energy efficiency level and now relies on renewable energy.

A year ago, a photovoltaic system was installed on the roof of a row house built in 1991 in Darmstadt. Since then, this pioneering Passive House project has been producing its own electricity, thus fulfilling the criteria of a Passive House Plus building. The official certificate was recently issued.

The certificate was accepted by Dr. Wolfgang Feist and his wife Witta Ebel (left). Photos: Passive House Institute

“Passive House buildings are perfectly equipped to utilize renewable energy. With their extremely low heating energy demand, it is even possible to derive as much energy from the sun on-site as is consumed in the house over a year,” explains Dr. Wolfgang Feist. Together with his wife Witta Ebel he recently accepted the Passive House Plus certificate.

Photovoltaic system for the anniversary
Twenty-five years ago, building physicist Dr. Wolfgang Feist built the world’s first Passive House, and with it established this energy-efficient, construction standard. Since then, the founder and director of the Passive House Institute and his family have lived in the terraced housing complex in the Darmstadt city district of Kranichstein. In the year of its 25th anniversary, the Feist family installed a photovoltaic system on the roof of their house in order to utilize the sun’s energy.

Efficiency plus renewable energy
With the Passive House Plus Standard, Passive House has contributed to the second step of the energy revolution. In addition to being highly energy efficient, it also generates on-site renewable energy. What matters here is that the energy demand of a building is considered and optimized separately from the energy generation.

The details:

Good basis for Passive House Plus –
In a Passive House Plus building, the upper limit for the total demand for renewable primary energy is 45 kWh/(m²a). At the same time, at least 60 kWh/(m²ta) of renewable energy must be generated based on the projected building footprint. From the very beginning, the Feist family equipped their house with extremely efficient devices. The electricity consumption is therefore very low, even with the operation of the ventilation system.

Heat pump with reduced energy use –
The same also applies for the air-to-air heat pump that was recently installed for test purposes this past autumn, which is used for heating as well as ventilation in the Passive House. This electrically operated heat pump should use approximately 30 percent of the energy consumption that was previously required with natural gas for the gas heating system.

Electricity surplus into the grid – 
In the summer the surplus electricity produced by the photovoltaic system in Darmstadt-Kranichstein is fed into the public grid. In theory, the produced amount would suffice for supplying the whole house for one year, and the surplus electricity in summer could be stored for the winter.

Saving in network is useful
“For a single household, this kind of seasonal storage is not a reasonable option, but in the network, this “gap” becomes smaller and storage becomes much more cost-effective. This is what needs to be done in future”, explains Dr. Wolfgang Feist.

Background: 

In 2015, the Passive House Institute introduced the Passive House Plus and Passive House Premium building classes which combine the classic Passive House Standard with renewable energy.  Both classes provide building owners with reliable orientation for combining energy efficiency and renewable energy.  Energy generation and energy demand are balanced separately. 

Direct accounting of the electricity generated by a photovoltaic system in the summer to the heating energy required in winter falls short of the reality since seasonal storage is always associated with losses.  The PER (Primary Energy Renewable) concept forms the basis of this calculation: PER factors are specified for the individual energy applications.  These state the number of kilowatt hours of renewable primary energy that are required to generate one kilowatt-hour of energy. 

In a Passive House Plus, the upper limit for the total demand for renewable primary energy is 45 kWh/(m²a). At the same time, at least 60 kWh/(m²ta) of renewable energy must be generated based on the projected building footprint.  In a Passive House Premium the energy demand is limited to 30 kWh/(m²a) while the energy generated must amount to at least 120 kWh/(m²ta).

For more information about Passive House, visit www.passiv.de.  

Posted in Building Green, DJC, Historic | Comments Off on Pioneering project upgraded to Passive House Plus

Watch Clark College’s STEM building from ground up

Clark College has formally opened their new STEM Building to the students at their Vancouver, Washington campus. Skanska USA Building, Inc. chose Work Zone Cam to document the construction of the 70,000-square-foot building from January 2015 to August 2016. To celebrate the building’s completion, Work Zone Cam produced a professional time-lapse movie detailing the 19-month construction process in less than 90 seconds.

The new building will serve students in a wide variety of science and technology studies.  The state-of-the-art building will house a cadaver laboratory, 26 instruction spaces, and a 44-foot drop tower for experiments by the engineering and physics students.

The building was designed with sustainability in mind, with the university pursuing the building being given LEED certification.

“Courtesy of Work Zone Cam” www.workzonecam.com 

Posted in Building Green, Construction, DJC | Comments Off on Watch Clark College’s STEM building from ground up

Chicago’s Riverwalk is complete!

CHICAGO – The final phase of the Chicago Riverwalk officially opened to the public on October 31.  It was designed by Ross Barney Architects in collaboration with landscape architects Sasaki Associates. 

Once an industrial space in disuse, the Chicago Riverwalk, a 1.5-mile promenade along the Chicago River, has been transformed into a public space lined with amenities, restaurants, cultural activities, and access to natural habitats for city residents and visitors alike.

Design leader for the 15-year project, Chicago Architect, Carol Ross Barney said the goal of the project was to “return the river to Chicago and return Chicagoans to the river.”  In 1909, the river was its lifeline, brimming with traffic and a civic waterway and promenade along the river was planned. That vision was finally completed, transforming what had become a postindustrial leftover into a 21st-century urban waterfront.

The final phase of the Riverwalk marks the reclamation of the Chicago River for the ecological, recreational, and economic benefits of the city. 

Phase 1, completed in 2009 by Ross Barney Architects, included Chicago’s Vietnam Veteran’s Memorial, Wabash Plaza, and the Bridgehouse Museum Plaza, connected at river level.  Phase 2 was completed in 2015, and Phase 3 is six conceptual, outdoor “rooms” designed to embrace the river in a variety of ways. 

Each of the six spaces in the project generates a distinct experience with the river. Phase 3 additions will complement the Marina, the Cove, and the River Theater, which were completed in Phase 2. The highlights of Phase 3 include:

Water Plaza – The sunniest portion of the park walk features a sundeck to enjoy the views and a children’s fountain where families can interact with water.

The Jetty – An interactive environment for learning about the ecology of the River with a series of piers, floating wetland gardens, fish habitat, native plantings and opportunities for fishing.

The Boardwalk – A space for relaxation and enjoying the view, the Boardwalk has a great lawn for lounging and a striking sloping bridge over floating gardens.  An accessible walkway and new marine edge creates continuous access to Lake Street and sets the scene for future development in this critical space at the confluence.

The design of the Chicago Riverwalk acts as a seam between Wacker Drive’s Beaux Arts architecture and the natural landscape of the River. This connection to the River, with remarkable views, water sports, and recreation, and ecology promotes stewardship of this vital natural resource. The Jetty not only educates the public on the ecology of the river, but also helps to foster the river’s healthy growth. The Riverwalk was designed to be forward thinking for resiliency and plans for a future when the water is clean and swimmable.

The myriad of activities offered along the Chicago Riverwalk have already been embraced by the public. On high traffic days, restaurants report 45-minute waits for tables—time easily passed on the waterfront—and water boat and bike tours are sold to capacity. The Chicago Riverwalk has already proved to be an economic and recreational success while providing a beloved public amenity in the heart of an urban core for decades to come.

About Ross Barney Architects:

Ross Barney Architects (www.r-barc.com) is a Chicago-based architecture and urban design studio. Established by Carol Ross Barney, FAIA, the studio occupies a unique place within the panorama of contemporary practice that is characterized by a reputation for work in the public realm.  The studio’s ideas and projects have been recognized, published, and exhibited around the world, receiving more than 60 major awards.

Posted in Architecture, Design and Art, DJC, Parks and open space | Comments Off on Chicago’s Riverwalk is complete!