CONTRACTOR'S INQUIRY RESPONSES

JULY 21, 1999


CONTRACT NO. 04-043554

(Project 16)

APPARENT LOW BIDS
West Coast Bridge Incorporated $16,375,351
California Engineering/Modern Continental, a joint venture. $17,577,735
FCI Constructors $17,911,655

The responses to contractors' inquiries, unless incorporated into a formal addenda to the contract, are not a part of the contract and are provided for the contractor's convenience only. In some instances, the question and answer may represent a summary of the matters discussed rather than a word-for-word recitation. The responses may be considered along with all other information furnished to prospective bidders for the purpose of bidding on the project. The availability or use of information provided in the responses to contractors' inquiries is not to be construed in any way as a waiver of the provisions of section 2-1.03 of the Standard Specifications or any other provision of the contract, the plans, Standard Specifications or Special Provisions, nor to excuse the contractor from full compliance with those contract requirements. Bidders are cautioned that subsequent responses or contract addenda may affect or vary a response previously given, and any such subsequent response or addenda should be taken into consideration when submitting a bid for the project.

CALTRANS TOLL BRIDGE RETROFIT PROGRAM ADDRESS

The Caltrans District 4 Office is located at 111 Grand Avenue, Oakland, CA 94612. The mailing address is P.O. Box 23660, Oakland, CA 94623-0660. The Toll Bridge Retrofit Duty Senior telephone number is (510) 286-5549, the email address for Contractor's inquiries is Duty_Senior_Tollbridge_District04@dot.ca.gov, and the fax number is (510) 286-4563. All inquiries must include the contract number.

1) WOULD CONTRACT PLAN ELECTRONIC FILES BE AVAILABLE TO CONTRACTOR?

Contract plan electronic files will not be available to Contractors.

2) WHAT IS THE COASTWISE TRADE DETERMINATION FOR QUALIFIED BARGES?

A non-coastwise qualified barge may be used as a moored stationary work platform within the territorial waters of the United States without violating the coastwise laws, provided that it transport neither passengers nor merchandise while under tow between coastwise points." Contractors have to get all the appropriate permits from the US Coast Guard.

3) DOES THE WORKER'S COMPENSATION INSURANCE FOR THIS PROJECT FALL UNDER THE JURISDICTION OF THE UNITED STATES LONGSHORE AND HARBOR WORKER ACT/OR THE JONES ACT?

The Jones Act (46 U.S.C & 13 et seq.) applies to seamen and shipping and does not relate to construction workers on the bridge. The Longshore and Harbor Workers' Compensation Act (33 U.S.C. & 901 et seq.) applies to employees engaged in maritime employment. A federal court decision of the Fourth Circuit Court of Appeals has held that a construction worker employment in building a bridge over navigable water, designed to benefit both traffic and navigation, is engaged in maritime employment under the Longshore and Harbor Workers' Compensation Act. (LeMelle v. B.F. Diamond Const. Co.)(1982) 674 Fed2.d 296). Under California law (Lab. Code & 3700), every employer is responsible for being insured against liability to pay workers' compensation. That responsibility is incorporated into the Department of Transportation's (Department) construction contracts under the provisions of the Standard Specifications Section 7-1.01(A)(6) that requires the construction contractor to certify compliance with Labor Code Section 3700.

4) ARE THERE ANY DRILLED OR DRIVEN PILE FOUNDATIONS ASSOCIATED WITH CONTRACT NO. 04-043554?

Please look at the plans and special provisions to determine the work that are involved with this project. Plans and special provisions may be obtained at the Department of Transportation, Plans and Bid Documents, Room 0200, Transportation Building, 1120 N Street, Sacramento, CA 95814, or may be seen by appointment at the office of the Toll Bridge Program Duty Senior at 111 Grand Avenue, Oakland, CA 94612; telephone number (510) 286-5549; email Duty_Senior_Tollbridge_District04@dot.ca.gov.

5) THE FOLLOWING NOTE IS TYPICAL. THIS ONE IS COPIED FROM DRAWING 49 OF 245:

AS-BUILT REFERENCES:

AMERICAN BRIDGE CO. SHOP PLANS:

ORDER NO. G4857 FOR CONTINUOUS TRUSS SPAN

(COLUMN - BENTS A & B) SHT. NO. 1AB, 1B, 2AB, 2B

AND ORDER NO. 64858 SHEETS NO. 3 AND NO. 46

HOW DO I OBTAIN THESE DRAWINGS? WHAT SIGNIFICANCE IS THE "ORDER NO."?

The note is a reference to as-built drawings. The as-built drawings are available in five (5) CDs, which are available at the following location:

Kinko's

1221 Broadway, Suite 49

Oakland, CA 94612

Please call Kinko's at (510) 465-5209 and ask for Computer Services to reserve your CDs at least 24 hours in advance. Price: $34.95 per CD

Copies of the as-builts referenced in the contract drawings are also available for inspection by appointment at the office of the Toll Bridge Program Duty Senior, 111 Grand Avenue, Oakland, California 94612; telephone number (510) 286-5549; email Duty_Senior_Tollbridge_District04@dot.ca.gov.

6) IS THERE A CD CONTAINING THE AS-BUILT DRAWINGS REFERENCED IN THE PLANS? IF SO, WHERE CAN I PURCHASE IT?

Please see response to Inquiry No.5.

7) REF. SHEET NO. 45 OF 245: PLEASE CONFIRM THE 1 1/4" DIAMETER A449 ANCHOR RODS ARE TO BE INCLUDED IN BID ITEM NO.66, "MISCELLANEOUS METAL (BRIDGE)."

The anchor rods are included in Item #66, "Miscellaneous Metal (Bridge)."

8) REF. SHEET NO. 89 OF 245: THE SHEAR KEY ARE SHOWN ON THE TEMPORARY TOWER SUPPORT DRAWINGS. ARE THE SHEAR KEY UNITS TO BE INCLUDED IN BID ITEM 26, "TEMPORARY SUPPORTS," OR BID ITEMS 55 AND 56, "STRUCTURAL STEEL?"

It appears unclear if the shear key units are included in bid item 26 or bid items 55 and 56. Unless you see an addendum addressing this issue, please bid per the current plans and specifications.

9) REF. SHEET NO. 68 OF 245: THE BRACE ELEVATIONS SHOW THE NEW GUSSETS CONNECTING TO THE NEW BRACE DIAPHRAGMS WITH L6XL6X5/8" ANGLES. THIS APPEARS TO BE IN CONFLICT WITH SECTION "A-A" ON THIS SHEET AND SECTIONS ON SHEET NO. 20 OF 105 WHICH SHOW 3/4"X6" CONNECTION PLATES. PLEASE ADVISE.

Section "A-A" is correct.

10) FOUR QUESTIONS IN REFERENCE TO CONSTRUCTION SEQUENCE SHEET 44 OF 245 - III. COLUMNS:

A. STEP 1 - HOW ARE THE PLATES L-1 AND L-2 PLANNED TO FIT INTO THE COLUMN. THE ACCESS HOLE AT THE TOP OF THE COLUMN IS SMALLER THAN THE PLATES. WILL THE ACCESS HOLE BE ALLOWED TO BE ENLARGED? PLEASE ADVISE.

B. STEP 6 THE 3/4X30 PLATES ARE SHOWN TO BE INSTALLED IN 4 SECTIONS. WE HAVE FOUND THAT PLATES LONGER THAN APPROXIMATELY 16 FEET WILL INTERFERE WITH THE TEMPORARY TIE RODS INSTALLED IN STEP 4. PLEASE ADVISE.

C. STEP 9 WHAT IS THE NOTCH DETAIL IN THE TOP STRUT?

D. STEP 26 THE CHANNEL BRACING FOR THE TEMPORARY SUPPORTS DOES NOT ALLOW INSTALLATION ACCESS FOR THE 1-1/2X 50 PLATES IN THE LENGTHS AS SHOWN. WILL TEMPORARY REMOVAL OF THE CHANNEL BRACING BE ALLOWED TO INSTALL THESE PLATES WHEN NECESSARY? PLEASE ADVISE.

A. Enlargement of the access hole will not be allowed. Unless you see an addendum addressing this issue, please bid per the current plans and specifications.

B. The installation of the plates should not interfere with the temporary tie rods. Unless you see an addendum addressing this issue, please bid per the current plans and specifications.

C. The general shape of the notch is shown on sheet 61 of 245 of the contract plans. Please refer to the as-built drawings, "Isolation Bearing Details" sheets, and the "New Gusset Plate" detail shown on sheet 61 to determine the size of the notch necessary for your operations.

D. Temporary removal of the channel bracing will be allowed.

11) THE ELECTRICAL CONDUITS SHOWN ON SHEET 189, 190 AND 191: WHAT ITEM OF WORK ARE THESE CONDUITS TO BE BID UNDER?

The electrical conduits shown on sheets 189, 190 and 191 are in bid item no. 75, "Electrical Work (Pump Station)."

12) SHEET 245, TRAFFIC SIGNAL WORK: WHAT IS THE BID ITEM? THERE ARE NO PAGES IN THE SPECIAL PROVISIONS FOR THE SIGNAL WORK.

There is no bid item for traffic signal work on sheet 245. This is shown for reference only. Signal work are being done by other City contracts.

13) ARE THERE ADDITIONAL SHEETS FOR THE TRAFFIC SIGNAL WORK? THE SHEET IS NUMBERED ET-13, AND NOTES ON THE SHEET REFERENCE OTHER "ET" SHEETS.

There is no traffic signal work. These sheets are for reference only.

14) PAGE 354, SECTION 11551 OF THE SPECIAL PROVISIONS: WHAT IS THE BID ITEM?

The bid item is no. 74, "Mechanical Work (Pump Station)."

15) PER PLAN SHEET 44 OF 245 NOTE IV; "BRACES & STRUTS," THE LAST SENTENCE STATES, "AT ANY GIVEN TIME NO MORE THAN THREE SETS OF LACING OR ONE END PLATE CAN BE DISMANTLED DURING THE WHOLE CONSTRUCTION PROCESS. SINCE WE ARE REQUIRED TO INSTALL NEW COVER PLATES IN EXCESS OF 19 FT IN LENGTH, REMOVING THREE LACING BAR SETS AT A TIME ALLOWS FOR APPROXIMATELY 6 LINEAL FEET OF UNOBSTRUCTED FLAT SURFACE. THIS IS INADEQUATE TO INSTALL A COVER PLATE PPL WHICH IS 19'=0 7/16" LONG AS SHOWN FROM THE TOP VIEW ON PLAN SHEET 55 OF 245. PLEASE CLARIFY HOW YOU INTEND FOR THIS WORK TO BE COMPLETED.

The contract is biddable and buildable as written. The Contractor shall determine an appropriate safe and stable construction sequence.

16) PER PLAN SHEET 53 OF 245 WHICH DETAILS COLUMN SECTIONS, SHOWN, IS A FULL LENGTH INSIDE FIELD WELD ALONG THE VERTICAL AXIS OF A NEW 50X1" PERFORATED PLATE TO A NEW 1"X 7'-9" LONG PLATE. IN ORDER TO FIELD WELD THIS JOINT AS INDICATED ON THE PLAN SHEET, THE WELDER MUST FIT INTO AN ENCLOSED SPACE 3 FT WIDE BY 1'-4" DEEP & THE PARENT METAL TO BE WELDED MUST BE PREHEATED ABOVE 100 DEGREES FAHRENHEIT. THE WELDER MUST ALSO BE ABLE TO WELD 2 SEPARATE RUNS BY 7 FT IN HEIGHT PROGRESSING UP OR DOWN THE VERTICAL AXIS OF THE ENCLOSED COLUMN. PLEASE CLARIFY HOW YOU INTEND FOR THIS WORK TO BE ACCOMPLISHED.

There is adequate access to the joint to complete the welding as shown on the plans. It is up to the Contractor to determine the method of construction.

17) I AM PLANNING TO BID THE MOBILE DAILY DIARY SYSTEM PORTION OF THIS CONTRACT, BUT NEED ADDITIONAL INFORMATION TO PROPERLY BID IT.

(A) IS THERE A REQUIREMENT FOR WHAT PROGRAM IS USED FOR THE APPLICATION? I AM INTENDING TO USE MICROSOFT ACCESS TO CREAT IT, BUT NEED TO CONFIRM THAT IS ACCEPTABLE.

(B) I AM PRETTY CLEAR ON WHAT DATA NEEDS TO BE INPUT INTO THE SYSTEM, BUT I AM UNCLEAR ON WHAT REPORTS ARE NEEDED TO EXTRACT DATA FROM THE SYSTEM. ANY CLARIFICATION WOULD HELP.

(C) ARE ALL OF THE PEOPLE THAT WILL BE ACCESSING THE SYSTEM GOING TO DO SO FROM THE SAME OFFICE, WHICH IS ON A SINGLE, CONNECTED LAN (LOCAL AREA NETWORK)?

(D) HOW MANY PEOPLE WILL BE ENTERING INFORMATION SIMULTANEOUSLY?

(E) HOW MANY PEOPLE WILL BE RETRIEVING INFORMATION SIMULTANEOUSLY?

(A) There is no program required. However, the output file shall be .csv file type.

(B) The output file shall contain data in the format specified in the special provisions.

(C) The prime contractor is responsible for providing the data to Caltrans for his company and all subcontractors incorporated on the public work. Who inputs it and from where will be determined by the prime contractor and his subcontractors.

(D) That is up to the prime contractor.

(E) The Contractor provides the required data on 3.5" floppy disks and hard copy to Caltrans, the data is then inspected by Caltrans personnel for completeness and quality, then is uploaded to a database server by Caltrans personnel.

18) DRAWINGS ET-13 (SHEET 245 OF 245) IS A PLAN VIEW OF TRAFFIC SIGNAL WORK. NOTED ON THIS DRAWING ARE REFERENCES TO DWG ET-24, ET-18 WHICH I CANNOT LOCATE IN THE BID SET. INFORMATION NORMALLY INCLUDED WITH TRAFFIC SIGNAL WORK WOULD BE A POLE AND SIGNAL HEAD SCH. AND A CONDUIT AND WIRE SCH. THIS APPEARS TO BE A CITY OF SAN FRANCISCO SIGNAL. I CANNOT LOCATE ANY SPECS RELEVANT TO THE CITY OF SAN FRANCISCO METHODS.

There is no bid item for traffic signal work on sheet 245. This is shown for reference only. Signal work are being done by other City contracts.

19) ON PAGE 132 OF THE SPECIAL PROVISIONS, UNDER THE MEASUREMENT AND PAYMENT PARAGRAPH, IT SAYS THAT THE PRICE FOR THE STEEL JACKETS SHALL INCLUDE THE COST FOR DRILLING HOLES IN THE JACKETS AND STUD CONNECTORS. PLEASE ADVISE AS TO WHERE THE CONTRACT DRAWINGS I CAN FIND THE DETAILS ON THE ABOVE ITEMS, OR PROVIDE MORE INFORMATION.

The plans show standard details for drilling holes in the casing on sheet 40 of 245. No stud connectors for the casing are shown on the plans. The payment clause in the special provisions conflicts with the plans by including payment for the stud connectors. Unless you see an addendum addressing this issue, please bid per the current plans and specifications.

20) REFERENCE SPECIAL PROVISIONS SECTION 14120, "BRIDGE CRANE", PAGE 386, PARAGRAPH D, "HOIST SPECIFICATIONS", THE ENTIRE PARAGRAPH DESCRIBES A WIRE ROPE HOIST. BUT UNDER PARAGRAPH 2.2.A.3, "ELECTRIC HOIST" (4TH LINE), IT REFERENCES TO CHAIN HOIST WITH CHAIN CONTAINER. PLEASE CLARIFY THE CONFLICT.

The hoist shall be chain hoist with chain container.


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