Inter-Departmental Correspondence

Department of Public Works



March 18, 2004


April 6, 2004



Honorable Board of Supervisors


Neil R. Cullen, Director of Public Works


Phase II - Renovation of Windows and Glazing at the Maguire Correctional Facility, 330 Bradford Street, Redwood City (Projects No. P7D02, P7D03 & P7G01)



Adopt a resolution adopting plans and specifications, determining prevailing wage scales and calling for sealed proposals for the Phase II Renovation of Windows and Glazing at the Maguire Correctional Facility.


Previous Board Action

Approved the contract for the Phase I Renovation of Windows and Glazing at the Maguire Correctional Facility (Correctional Facility).


Key Facts


The Phase I work renovated the windows on the south and east side of the Correctional Facility and the Phase II work is proposed to renovate the windows on the west side of Building "A" and the north side of Building "B" of the Correctional Facility.



The window frames in Building "A" (the original building) are not "water tight" which has resulted in water leaks into the building, corrosion of the metal frames and rust stains on the interior and exterior of the building.



The windows in Building "B" (the newer building) consist of multi-layers of glass. The layers of glass are separating (delaminating), which increases the potential of the glass being broken to allow access to objects outside of the Facility, or for the broken glass to be used as a weapon.



There are additional costs associated with renovating the windows in the Correctional Facility as the work has to be completed on a "cell by cell" basis, and as it is necessary to move the occupants to another cell within the Correctional Facility while the window renovation work in the cell is being done. The Sheriff's Department has informed us that they can only release one or two cells at a time for the renovation work.




Renovation of Exterior Security Windows - Building "A"


The original Correctional Facility is constructed with pre-cast concrete panels and unitized steel window frames. A water test and the disassembly of the one of the windows indicated that water, over time, penetrated between the window assembly and the precast concrete panels causing leaks into the building, stains on the exterior and interior of the building and corrosion of the metal frames. We are recommending removing the glazing from the frames; cleaning off all rust from the wall and frames; repainting the metal frames; reinstalling and resealing the glazing; and then reinstalling and resealing the metal frames to the structure.



Replacement of Exterior Security Glazing - Building "B"


The newer section of the Correctional Facility uses a different window configuration and has layered (laminated) security glass. It was determined that the majority of the security glazing is delaminating; possibly due to either the incompatibility of the sealant used to laminate the layers of glass, or the quality of the glass and the lamination material used. However, the glazing is no longer under warranty. The Sheriff is concerned as the security glass, when delaminated, can be broken and could be used as a weapon. We are recommending that the security glass be removed and replaced with compatible glass, laminate material and sealants.


Vision Alignment

We believe our recommendation is consistent with Goal Number 7, "maintain and enhance the public safety of all residents and visitors" of the Shared Vision Commitment to "ensure basic health and safety for all," as the renovation of windows and replacement of security glazing will help maintain the security of the Correctional Facility for the public, the inmates and the Sheriff's employees that operate the facility.


Fiscal Impact

This is the second phase of the project which will repair the windows in six (6) cells in Building "A" and the windows on the west side of Building "B". The Engineers estimate is $380,000 and an appropriation financed with General Funds, Criminal Justice Funds and Proposition 172 Funds for this work was approved in the Capital Projects Budget in the 2003/04 fiscal year. We have also included additive bid alternates in order to obtain competitive prices for the remaining work which can then be recommended to be done at these bid prices if additional funding becomes available during the life of the proposed contract. We will report to your Board on the additional bid alternates after the bids have been opened and examined. As stated previously, this work is relatively expensive since it can only be done at the rate of one or two cells at a time.


A form of resolution has been approved by County Counsel.