|Architect:||Pollack & Pope|
|Seismic Hazard Rating||3|
|Number of Stories||Two w/basement|
|Address:||1616 20th Street|
|Gross Sq. Ft.:||4,391|
The recommended modernization plan is to renovate and expand vertically the existing building while reducing the risk associated with a major earthquake. The structural components of the building will be retrofitted to better withstand a major earthquake. Additional concrete columns, beams, heavy timber framing members, and metal connectors are needed to strengthen the building. Expansion options may include removing the roof and adding a floor. Existing stairways, restrooms, staff room, electrical room, mechanical room will be modified or relocated to conform to accessibility requirements, life safety related code requirements and owner improvements.
The basement level is built of concrete box frame while the upper two stories are concrete and wood construction. The community rooms and restrooms on the second floor are ADA inaccessible. The partial second floor is built half a story above the roof of the lower floor. This provides for the opportunity to expand the buildng without increasing the number of stories or blocking existing views.
New or alteration construction will meet State (Title 24) and Federal (Americans with Disabilities Act) guidelines. These guidelines detail minimum requirements and standards for improvements and the corresponding physical dimensions of construction work. The scope of disabled access work anticipated includes: the addition of an elevator; reconfiguring existing restrooms and adding new restrooms; new fire stair; modification of counters, bookshelves and table spacing at the reading room areas; and modification of doors and stairways. Application of the California Accessibility Code and conformance with the latest life safety related code requirements will include: new elevator, and elevator machine room; providing new accessible restrooms, and wider library aisles.
Building code impacts involve the updating of the heating, ventilating, plumbing, fire protection, electrical and other building control system to bring it up to code requirements for life safety.
Current law requires removal of asbestos-containing materials (ACMs), including plasterboard walls, floor tiles, and roofing related to the anticipated construction activities associated with seismic retrofit and disabled access construction work. The removal of ACMs will require relocation of the building occupants because floor areas will be affected and there is significant health risks of exposure to airborne particulars associated with the removal of ACMs. Lead that is impacted shall also be abated.
The recommended modernization plan will involve an expansion, possibly of the second story over the reading room at the north end of the building. The interior of the building will be completely remodeled, and office space will be reconfigured to make more efficient use of the space. The interior remodel and seismic work would trigger conformance work on the American with Disabilities Act (ADA). The modernization work will reduce the public area on the first floor of the library, but would recover that loss by expanding. The existing library has no room to expand horizontally. Therefore, expanding the second story maybe the most cost effective solution to make the facility fully accessible.
The expansion space will accommodate an elevator, create additional space for collections, programs, services, reading area, increase staff work area and add restrooms to 1st floor. The elevator will be accessible from inside the building and during closed hours, this will require a secure lobby area be developed.
Improvements include replacing the flooring, adding data/electrical outlets, and update of the meeting room. Work includes remodeling the existing staff lounge, restrooms, and storage. Also included is window replacement, and new lighting.