SAN FRANCISCO UNIFIED SCHOOL DISTRICT 2006 PROPOSITION A BOND PROGRAM RAPHAEL WEILL EARLY EDUCATION SCHOOL STRUCTURAL STRENGTHENING ADDENDUM NO.

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1 SAN FRANCISCO UNIFIED SCHOOL DISTRICT 2006 PROPOSITION A BOND PROGRAM RAPHAEL WEILL EARLY EDUCATION SCHOOL STRUCTURAL STRENGTHENING ADDENDUM NO. PROJECT: Raphael Weill Early Education DATE: March, 208 Structural Strengthening 50 O Farrel Street, San Francisco, CA 945 OWNER: San Francisco Unified School District DSA FILE NO.: Van Ness Avenue San Francisco, CA 9403 DSA APP. NO.: Notice is hereby given to all prospective bidders that plans and specifications on the subject project are modified as hereinafter set forth. This Addendum shall be attached to and form a part of the plans and specifications. All bidders must acknowledge receipt of this addendum on the Bid Form. In case of difference with previous addenda or communications, this addendum takes precedence. It is the responsibility of all bidders to notify all subcontractors from whom they request bids and from whom they accept bids of all changes contained in this addendum. PROJECT MANUAL. Item No. PM- Reference: Section Description: Revise area for Phase, Preliminary Field Verification Testing, to exclude a portion of the site as shown on Phasing Plan of 2, attached. DRAWINGS. Item No. AD- Reference: DRAWING A00, ASK-0 Description: Delete Note from Title Sheet, See ASK-0. Because this is a voluntary seismic upgrade, DSA has waived the requirement that foundation construction cannot start until final CGS approval of the soil improvement work. See ASK-0 Page of 2

2 2. Item No. AD-2 Reference: Description: 3. Item No. AD-3 Reference: Description: DRAWING GOO, GSK-0 Extend permeation grouting under the existing elevator pit to 4 feet below well hole. Protect existing elevator well hole, jack and piston. Maintain a minimum 2 foot clearance between well hole and permeation grouting. See GSK-0 DRAWING GOO2, GSK-02 Extend permeation grouting under the existing elevator pit. Protect existing elevator well hole, jack and piston. See section GSK-02 ATTACHMENTS: Project Manual: Site Phasing Plan of 2 Drawings: AD-ASK-0 AD-GSK-0 AD-GSK-02 Page, A00 Revised Page, Elevator Pit and Mat Slab Page, Soil Improvement at Elevator Mat Slab END OF ADDENDUM ITEMS Page 2 of 2

3 R30'-0" NO PARKING PHASE APRIL, 208 TO JUNE 3, ' ' 5.805' PHASE 2 JUNE 4, 208 TO JULY 20, 208 PHASE 3 JUNE 4, 208 TO AUGUST 3, 208 WORLD MAP WORLD MAP BASKETBALL COURT BASKETBALL COURT TEMP FENCING FOR PHASES 2 & 3 TEMP FENCING FOR PHASE ' O'FARRELL STREET (CLOSED OFF TO THROUGH TRAFFIC) RAPHAEL WEILL EARLY EDUCATION SCHOOL 40-YARD DASH AREA SECURE FENCE WHILE SCHOOL IS IN SESSION APPROXIMATE LOCATION FOR PRELIMINARY FIELD VERIFICATION TESTING FOR GROUTING. TO BE FINALIZED BETWEEN THE DISTRICT AND CONTRACTOR CONTRACTOR IS RESPONSIBLE FOR ANY DAMAGE TO THE SITE. KICKBALL COURT 7.5' FINAL COMETION: SEPTEMBER 4, CALENDAR DAYS FROM NOTICE TO PROCEED. THIRTY (30 CALENDAR DAYS FROM THE END OF THE LAST PHASE). AREA NOT FOR CONTRACTOR USE 5'-0" PF FIRE LANE NO PARKING NO PARKING ROSA PARKS ELEMENTARY SCHOOL 37.50' (E) HB (E) HB RAPHAEL WEILL EARLY EDUCATION SCHOOL STRUCTURAL STRENGTHENING - PHASING AN OF 2 REVISED 03/0/8 PER ADDENDUM

-0A00 - R SHEET 03/0/8 ADDENDUM 898 Hyde Street, San Francisco CA 45.776.220 SFUSD PROJECT NUMBER 52 SCALE: DSA NO.

4 -0A00 - R SHEET 03/0/8 ADDENDUM 898 Hyde Street, San Francisco CA SFUSD PROJECT NUMBER 52 SCALE: DSA NO.: FILE: 38- SAN FRANCISCO UNIFIED SCHOOL DISTRICT RAPHAEL WEILL EARLY EDUCATION SCHOOL - STRUCTURAL STRENGTHENING 50 O'FARRELL STREET, SAN FRANCISCO CA 945 DATE: 02/27/8 8:29:30AREF: REVISION: SK

5 3. 4 EDGE OF (E) MAT SLAB AND EXTENT OF SOIL IMPROVEMENT: 4'-0" PERMEATION GROUTING OVER COMPACTION GROUTING 5 6 (E) GUIDE RAIL (E) SPRING BUFFER (E) SUMP J. R 2'-0" MIN 4'-0" GSK-02 J (E) VENT DUCT ZONE OF EXTENDED PERMEATION GROUTING - EXTEND PERMEATION GROUTING TO 8'-0" BELOW PIT FLOOR AND MAINTAIN A MIN. 2'-0" CLEARANCE FROM CYLINDER JACK. PROTECT (E) PIT CHANNELS, JACK CYLINDER & WELL HOLE (E) LADDER HYDRAULIC SY PIPE ELEVATOR PIT AN /4" = '-0" GSK-0PIT AND MAT SLAB ELEVATOR SFUSD PROJECT NUMBER 52 SCALE: /4" = '-0" DSA NO.: FILE: 38- DATE: 2/28/208 2:02:0 PM SAN FRANCISCO UNIFIED SCHOOL DISTRICT RAPHAEL WEILL EARLY EDUCATION SCHOOL - STRUCTURAL STRENGTHENING 50 O'FARRELL STREET, SAN FRANCISCO CA 945 REF: REVISION:

PER LEVEL SIT LEVEL (E) CONC SLAB ON GRADE LOWER LEVEL (E) '-0" X 20'-0" MAT SLAB W/#8" @ 2" O.C. LONG & #6 @ 2" O.C. TRANS, TOP & BOTTOM. SCAN FOR REBAR AND PROTECT PERMIATION GROUTING ZONE.

6 PER LEVEL SIT LEVEL (E) CONC SLAB ON GRADE LOWER LEVEL (E) '-0" X 20'-0" MAT SLAB 2" O.C. LONG & 2" O.C. TRANS, TOP & BOTTOM. SCAN FOR REBAR AND PROTECT PERMIATION GROUTING ZONE. PROTECT (E) ELEVATOR WELL HOLE, JACK & CYLINDER. HOLD GROUT MIN. 2'-0" FROM HOLE 4'-0" MIN 2'-0" MIN 4'-0" MIN 4'-0" '-6" 4'-0" ELEVATOR PIT (E) 4'-0" WELL HOLE COMPACTION GROUTING ZONE TO TOTAL DEPTH OF 40'-0" BELOW LOWER LEVEL 20'-0" 4'-0" Elevator Mat Slab & Well Hole - Soil Improvement /8" = '-0" GSK-0IMPROVEMENT AT ELEVATOR MAT SLAB 2SOIL SFUSD PROJECT NUMBER 52 SCALE: /8" = '-0" DSA NO.: FILE: 38- DATE: 2/28/208 2:02: PM SAN FRANCISCO UNIFIED SCHOOL DISTRICT RAPHAEL WEILL EARLY EDUCATION SCHOOL - STRUCTURAL STRENGTHENING 50 O'FARRELL STREET, SAN FRANCISCO CA 945 REF: REVISION:

SAN FRANCISCO UNIFIED SCHOOL DISTRICT FACILITIES DESIGN & CONSTRUCTION LOBBY AND CAFETERIA FLOORING INSTALLATION EVERETT MIDDLE SCHOOL ADDENDUM NO.

SAN FRANCISCO UNIFIED SCHOOL DISTRICT FACILITIES DESIGN & CONSTRUCTION LOBBY AND CAFETERIA FLOORING INSTALLATION ADDENDUM NO. 1 PROJECT: 450 CHURCH STREET DATE: 13 FEBRUARY 2015 San Francisco, 94114 OWNER: