A series of severe storms in late 2016 and the first quarter of 2017 activated or intensified numerous water leaks in state-owned buildings.
The Department of Enterprise Services is responsible for the stewardship, preservation, operation and maintenance of the state Capitol Campus in Olympia. It is a top agency priority to investigate and fix water leaks to prevent water damage to the structure, finishes or contents of the buildings.
About 24 leak sites were identified on the Capitol Campus, many of which are in five historic Capitol Campus buildings – the John A. Cherberg, Insurance, Legislative, Irving R. Newhouse and John L. O'Brien buildings. Some buildings have more than one leak site.
Another 10 leak sites were spread among state-owned facilities in Kelso, Sedro-Woolley, Tacoma, Tumwater and Yakima.
In late 2016 and the first half of 2017, Enterprise Services remedied the majority of Capitol Campus leak sites, including the most severe and high priority Capitol Campus leaks:
As buildings on the Capitol Campus age, their maintenance requirements increase – including the need to address potential water leaks.
A building’s exterior shell – the roof, windows, insulation, and exterior walls and doors – is designed to keep the structure water-tight and maintain a comfortable temperature for people working or visiting the facility.
For historic buildings, this building envelope can be extremely complex. On the Capitol Campus, our historic buildings have numerous architectural features that interconnect with each other. Issues with leaks are often due to breaches that occur where different types of building materials overlap.
Roofing and other building envelope elements have an effective lifespan. Once exceeded, Enterprise Services must either replace major portions of a building’s system or make temporary repairs.
An emergency repair with a construction cost of $60,000 was conducted to fix a water leak that resulted in moderately-high volumes of water entering the basement of the historic Cherberg Building, where members of the Washington State Senate and their staff work. Enterprise Services found that the leak was the result of a collapsed underground roof drain leader backing up into the building as well as an aging concrete basement wall. In the course of this partial system repair it became evident that the soils around the Cherberg Building have very poor drainage. While this repair addresses the issues in the immediate area, the building will ultimately need extensive repairs to correct drainage issues near its basement walls.
In March 2017, Enterprise Services also made a temporary repair to a new and chronic leak that materialized during wet weather in March when a roof drain seal began to fail.
In June 2017 Enterprise Services made repairs to additional leak locations, most of which originate on the building's roof or its roof-level mechanical equipment room. This included masonry repairs to the west wall of the penthouse, weatherization improvements at an air vent, and repairing various wall to roof transitions. Additionally, two repair locations were in the basement and required work in interior spaces as well as excavation work along the south side of the building. The cost of the penthouse and basement level repairs was $60,000. This cost also included minor repairs at the O'Brien building listed below.
Enterprise Services believes it has found and repaired the source of the most critical leaks in the Legislative Building – the capitol building for the state of Washington. The investigation, diagnosis and repair for one location in the southwest corner of the building was fairly complex and included electronic field vector mapping to identify possible breaches in the roof membrane that allow water through as well as partial flood testing of the roof membrane and drains. Ultimately, it was determined that there were multiple leak locations in the building's parapet walls and caps. The construction cost for these temporary repairs was $34,000.
Enterprise Services also installed a new metal roof above the State Reception Room where there was an active leak as part of the West Campus Exteriors project. Until 2017, the only cover over this portion of the building was exposed sandstone. The new roof was bid as part of a larger West Campus Exteriors project, with a $54,000 construction cost for the roof portion of the project.
DES completed an emergency repair in January 2017, to fix multiple leak locations in the building's southwest corner parapet walls and caps. In February 2017, new and chronic water leaks in the mini-dome features materialized that have caused damage to components of the building's heating, ventilation and air conditioning (HVAC) equipment. DES hired a consultant to investigate and scope the leak repairs. In May 2017 DES utilized an unmanned aircraft to investigate the cause of this issue, and the consultant provided their report and recommendations on June 30, 2017. Enterprise Services is examining the report and working to pursue options.
Enterprise Services fixed a leak originating in the roof by repairing failed junctions between the roof's membrane and an aging metal roof system as well as a roof drain. The temporary repair cost $10,000. Without a full roof replacement, more temporary repairs will be needed. Work is dependent on funding.
Enterprise Services has hired a consultant to investigate and design repairs to fix leaks in this building, where members of the Washington State House of Representatives and their staff work. Repairs to numerous leak locations, most of which originate on the roof or the building's roof-level mechanical equipment room, were completed between May and June 2017.
Work included in the West Campus Exterior Buildings Project that started in February 2017 is focused on maintenance of the stone exterior on the Washington State Supreme Court building. Cleaning on the Temple of Justice building was completed in April, 2017. Masonry repair work and cleaning was completed June 2017. These long-term masonry repairs primarily focused on the building's parapet walls, which have been a historic source of water leaks.
Leaks that recently appeared in this building appear to be related masonry issues. Enterprise Services incorporated the repairs into the contracted masonry repairs at the Temple of Justice and completed the work in May for a cost of $4,500.
As part of a planned project that was finished in 2015, a $4.58 million project was completed to replace the building's roof and also make repairs to stop leaks in the building's multi-purpose room.
One of several recommended roof repairs was completed in 2015, at a construction cost of $45,000.
A new roof costing $50,000 was installed as part of a $300,000 elevator repair project that was completed in 2015.
The construction costs described above reflect only the amount Enterprise Services paid to a contractor for their scope of work for each project. For most projects, construction costs represent only about 60 to 70 percent of the total costs – and don’t include associated expenditures such as:
Leak repairs are prioritized based on a number of factors: