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Posts tagged ‘Napa’

Napa ARE Bootcamp: PD&D

November 6, 2017-December 18, 2017
Locations in Napa TBA
$50 AIA Members and employees of chapter member firms/$75 Non-members
Click here to register

AIA East Bay’s ARE Bootcamp will provide a structured, rigorous study group for the Project Development & Documentation section of the ARE 5.0, with the goal of every person passing. Bootcamp meets Mondays in Napa (location TBD) beginning Monday, October 23 for eight weeks: 10/23, 10/30, 11/6, 11/13, 11/20, 11/27, 12/4, 12/11.

This Bootcamp is not a casual program, nor is it lecture format. Participants are required to sign up for the PD&D exam between December 19, 2017 – January 9, 2017.

Questions? Contact Sidney Sweeney at 510/464-3600 or


RFQ: Napa Earthquake Repairs, Napa State Hospital

BUILDINGS 147, 181 AND 183
Provide professional architectural and engineering design services as required to make seismic repairs to three buildings located at Napa State Hospital. Building 147 (Electric Shop), Building 181 (Manor House) and Building 183 (Central Nursing Services) were damaged in the 2014 South Napa Earthquake. All three buildings are considered historic. The responsible party shall be an architect or engineer licensed to practice in the State of California (CA) and all work shall be performed under and approved by a licensed design professional.

The estimated cost of construction for the project is $4,600,000.

Interested firms may obtain a Request for Qualifications Package (RFQ) by downloading it from the eProcurement Division’s California State Contracts Register on the Internet at: This is the preferred point of contact. The RFQ package may also be obtained by sending a request to one of the contact points listed below. Please include AD Number, contact person’s name, firm name, firm’s Federal Employer Identification Number (FEIN), mailing address and phone number. Request processing will be delayed if all information is not provided.
Submittal Deadline: Thursday, April 28, 2016 @ 05:00:00 PM

Duration: N/A
City and County: Napa, Napa County
Department: Department of General Services
FAX: (916) 376-1778
Contact: (916) 375-4064

Building Code Issues: Earthquake Reminder

by Kerwin Lee, AIA and Steven Winkel, FAIA, CASp

Kerwin Says:

The earthquake on August 24th was just a reminder that we live in earthquake country. It has been about 25 years since Loma Prieta shook the Bay Area on October 17, 1989, and over 100 years since the great San Francisco earthquake on April 18, 1906. Although earthquakes can be disastrous event, in my opinion they may be a little overrated. Compared to hurricanes, tornadoes and other natural disasters, there has only been one loss of life from an earthquake in 25 years.

What earthquakes do tell us is that our current building regulations are working. The majority of the damage I saw on the news involved the same six buildings or so, all of which are associated with unreinforced masonry building (UMB) or masonry construction. For the most part, their construction predated the current building regulations and standards. The current standards have been evolving for over 40 years. Each time the standard is changed, the bar for earthquake standards has been raised.

In the beginning, the mindset was to have buildings survive an event and to avoid total collapse. The key to this philosophy was to protect the occupants and allow them to safely evacuate the building. However, the building was not always salvageable or repairable. This philosophy has changed. There are many types of facilities that need to not only survive a major event, but continue to be usable afterward. Hospitals and essential service facilities (police, fire, and emergency responders) all fall into this category. The University of California (UC) system has also adopted this philosophy because they cannot afford to lose the use of a facility after an event. The UC wants to continue to operate with little or no disruption. In part, this is an economical decision.

So, what about the most vulnerable buildings, the UMB’s? Under current building codes (IBC and CBC), existing buildings that are not coming under any improvements need not make changes. However, if the building undergoes any improvements, these changes must comply with current code, but only for those elements that are changed. One of the triggers for seismic improvement is a change in use. When, say, a warehouse is converted into a business office (B-Office) or school (E-Educational),an evaluation of the building is required to assure that it is in compliance with current seismic requirements. [See Change in Use under Chapter 3408.] Things get tricky if it is determined that seismic improvements are required. What standard  are the improvements required to meet? For the most part, an existing building cannot comply with current standard without a complete structural upgrade, and even then a building is unlikely to meet 100% of present standards. The final decision on how to approach a structural conversion is left up to the Building Department and structural engineer, who must determine what is practical and economically viable for the project.

The problem still remains, however: existing UMBs that are not undergoing any changes. This now becomes an economic issue, because it takes money to correct the hundreds of buildings that are at risk. Some jurisdictions, such as San Francisco and Los Angeles, have enacted local ordinances to address this issue. San Francisco has a UMB Ordinance requiring masonry buildings make improvements. This ordinance includes public money to help complete this process. There were close to 2,000 buildings on the UMB list in 1992. At current date, more than 150 buildings still remain unimproved.

Steve Winkel FAIA

Steve Says:

I concu rwith Kerwin’s comments about UMBs. I would add that there are a couple of other broad categories of damage that touch every person who owns a residence, including many of our own members. The way I finally came to understand earthquake forces was to visualize the effect of one “G” of lateral acceleration, which could well happen during a major quake on the Hayward fault. This force is capable of turning a house on its side. The force of gravity, normally acting downward, pulls sideways on anything not well anchored with the same force that causes a glass to fall to the floor when you drop it.

Many houses have been damaged by chimney and cripple wall failures. I urge everyone who lives in the East Bay chapter area to take a close look at their foundations and at masonry chimneys. Chimneys should be braced above the roofline, and tall masonry chimneys reduced or replaced with modern flues. In addition, many older houses are not bolted to their foundations and often also have unbraced cripple walls. If there is a sound concrete foundation the sill can simply be bolted down with expansion anchors on code mandated spacing. Cripple walls should be braced with plywood to provide a shear connection between the house and the foundation. For a minimal investment older houses can be made more quake resistant. Many local building departments have good handouts describing simple earthquake resistant construction. I would urge each of our members to examine their own houses and tells their friends and clients to do the same. Note also that even if you have earthquake insurance– which likely only applies to a small percentage of you–the deductible is very high. The damage prevented by mitigating cripple wall and chimney failures will more than pay for itself in non-insured damage prevention. Also, while undertaking these measures be sure to strap your water heater tank to the structure to prevent it from overturning in an earthquake. That is a cheap and easy mitigation measure for loss prevention.

Kerwin Lee, AIA, CASp is an ICC-Certified Accessibility Inspector and Building Plan Examiner. Contact him at

Steven R Winkel, FAIA, PE, CASp can be contacted via The PREVIEW Group, Inc.  Architects Providing Regulatory Solutions.

South Napa Earthquake: First-hand investigations and reconnaissance

Reprinted with permission from Degenkolb Engineers

Degenkolb Engineers conducted first-hand investigations and reconnaissance of the South Napa Earthquake that occurred on August 24, 2014 at 3:20AM.

Field note contributors: David Bonneville, Ariel Creagh, Mahmoud Hachem, Roger Parra and Taka Tamiya.

The magnitude 6.0 earthquake caused many residents around the San Francisco Bay area to jolt out of bed, but fortunately, there has only been one reported fatality. Earthquakes of this scale tend to have a relatively localized ground shaking around the epicenter, not providing the broad range of high ground shaking intensity that people experienced in the Loma Prieta earthquake in 1989.

For more information on the earthquake seismicity, refer to the USGS ShakeMap found at the following link:

Downtown Napa is home to many historic masonry buildings.  The performance of unreinforced masonry buildings was of particular interest due to their vulnerability to seismic activity.  More modern buildings are found in the surrounding areas.  Naturally, the performance of modern buildings designed to recent codes is always of interest to compare our progress in design standards. In addition, the impact to the wine industry provided an interesting case study.

Unreinforced Masonry Structures

Most unreinforced masonry (URM) structures, which had undergone a seismic retrofit, survived the earthquake with no vital structural damage and minimal nonstructural damage.  This substantially reduces the financial impact due to building repairs and business closures.

In non-retrofitted URM structures, building damage was primarily found in the unreinforced masonry façade, where bricks and stones had fallen into the streets and sidewalks.  Fortunately, the earthquake occurred during the middle of the night, significantly reducing the chances that such failures resulted in injury or loss of life. As seen in the pictures below, typical damage consists of fallen walls, diagonal cracks indicating shear failure originating from corners of window/door openings, as well as failure of masonry at building corners.

building corners

Napa building


Modern Buildings

Most of the new construction performed well.  Damage was primarily found in nonstructural elements such as X cracks in stud walls, spalling of adhered stone cladding, and broken windows.


Adhered Stone Cladding

Notable nonstructural damage occurred in a downtown building with a metal stud framed exterior wall, which had broken from its slab connection, separating by approximately a foot from the structural frame.

Modern building


A Target store with a unique tower feature had some structural damage.  The tower appears to have displaced from its ground connection and shifted backwards slightly into the building.  The store currently has shores in place and the area is blocked off, but is otherwise fully operational.

Displaced tower

Displaced tower

Minimizing Economic Loss

The Target store is an interesting example of a building owner who apparently had an earthquake action plan in place with a retained engineer and contractor who were able to quickly assess, contain, and repair the damages, allowing them to reopen quickly.

The city has a responsibility to inform the public of buildings unsafe to be occupied as well as reassure that others are safe to enter.  This is done through the ATC-20 system of red, yellow, and green tags placed on the door of the building by an inspector.  As sometimes happens in the aftermath of an earthquake, there were a number of tagging inconsistencies. In some cases, we were unable to determine reasoning for the choice of tags.  There were also a number of safe buildings red-tagged due to their adjacency to a building with serious damage despite otherwise posing a limited threat to occupants.  This may have resulted in business closures for companies otherwise ready to reopen with little to no down time.

Yellow tag

The wine industry, centered in Napa Valley, created a unique opportunity to evaluate the effects of an earthquake on wine making equipment and storage. Structural damage to the winery facilities was limited due mostly to the fact that the majority of the wineries were North of the high shaking intensity and have relatively modern construction; however, considerable damage was reported at a wide number of facilities in the form of buckled tanks and toppled wine barrel stacks.  Wine barrels are often stacked six barrels high and in many cases have no tie downs or anchorage for restraint.  The damage observed reinforces the need for proper seismic consideration for large nonstructural elements both for safety and for the reduction of economic loss.

– See more at:

Tour: The Herman Family Pavilion at Queen of the Valley Medical Center

Co-Sponsored by AIA East Bay

June 20th, 2014
Queen of the Valley Medical Center
1000 Trancas St, Napa, CA 94558
Register Here, Members Free, $10 General Admission
2 HSWs

Please join AIASF’s Health + Science Committee for a tour of The Herman Family Pavilion. The recently-completed 100,000 sq ft Pavilion at Queen of the Valley, Napa, is tower addition which created a consolidation solution to California’s seismic mandate. The Pavilion provides a total of 6 operating rooms, including a hybrid operating room, as well as a 20-room Intensive Care Unit with natural light and views of the outdoors. Spearheaded by Petra Integrated Construction Strategies, the project included technology and efficiency initiatives, donor and community outreach, and sustainability measures to achieve LEED Gold certification.

Queen of the Valley Medical Center is a 191-bed, acute-care facility founded by the Sisters of St. Joseph of Orange. The Queen is the largest health care facility and one of the largest employers in Napa County. Services provided include a Regional Heart Center, a Regional Orthopedic Center, a Cancer Center approved with commendations by the American College of Surgeons, a Women’s Center, maternity and infant care, inpatient and outpatient minimally invasive surgery, occupational health, and a full-service emergency department, among many other specialty services. More information about Queen of the Valley Medical Center can be found at

Learning Objectives

  1. Characteristics of Hybrid Operating Room
  2. Elements of LEED certification for a Healthcare Facility
  3. Enabling greater technology connectivity throughout a Hospital
  4. Safe Patient Handling in the ICU Patient Rooms

Project Team

Architect: CO Architects
Structural Engineer: KPFF Consulting Engineers
General Contractor: Wright Contracting, Inc.
Healing Garden: Jack Chandler, Landscape Artist

Event Courtesy Of:




Stone & Tile event at Charles Krug Winery Estate

November 4th, 2013
10:30 a.m. to 2:30 p.m.
Charles Krug Winery, 2800 Main Street, St Helena, CA

Space is limited. R.S.V.P. by October 28th to


AKDO invites you to an exclusive event, held at the Traditional Home Napa Valley Show House.
The Show House is located at the Charles Krug Winery Estate. Several rooms feature trendsetting AKDO products that are brand new to the market.

The agenda for the event includes a complimentary tour of the show house, a wine tasting and lunch.