Viewing inquiries for 04-041004

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Inquiry #1: There may be an issue in achieving the required degree of surface preparation (SSPC SP-6) on the steel splice plates and bolts using shot blasting equipment alone.


If these conditions are encountered what additional surface preparation steps should be taken for the bolts and splice plates?

Inquiry submitted 07/07/2014

Response #1:Submitted for consideration.
Response posted 07/15/2014


Response #2:Bid per the current contract documents.
Response posted 07/17/2014




Inquiry #2: Per Lane Closure charts 3 and 4, we are allowed a total of 3 weekend closures to complete the Orthotropic steel deck section of the bridge. Are the noise restrictions in section 14-8.02A (page 25) of the specs, only referring to the Orthotropic portion of the bridge? If the noise restrictions are for the whole project, is it the State's intention that all unsound removal/patch, Treat Bridge Deck and Polyester placement to be completed during these three weekend closures?
Also, the noise restriction exceptions are from 10:00 pm to 5:00 am, while the restriction is from 9:00 pm to 6 am. What work is allowed between 9 to 10 pm and 5 to 6 am?

Inquiry submitted 07/15/2014

Response #1:Submitted for consideration.
Response posted 07/15/2014


Response #2:Noise restrictions ("Do not exceed 86 dBA LMax at 50 feet from the job site activities from 9 p.m. to 6 a.m.") apply to the whole project, on the entire project limits, for the entire duration of the project; except during the hours and days indicated on Section 14-8.02A.

Only the overlay with polyester concrete of the orthotropic bridge deck is to be finished during the three-weekend full bridge closures. Any other portion of the work can be done during the whole project (including during the bridge full closures).

Noise Restriction Exceptions Table has been included in Addendum No. 2. Please refer to Addendum No. 2 for the hours and days for these noise restriction exceptions.

Response posted 09/02/2014




Inquiry #3: Sheet E-1, "Notes", 11. and 15. are in conflict. Which note will be used?
Inquiry submitted 07/15/2014

Response #1:Submitted for consideration.
Response posted 07/15/2014


Response #2:Note 11 for the Armored Cable is correct.
Response posted 07/18/2014




Inquiry #4: I need to schedule a job site visit.

As per the Special provisions,
2-1.07 JOB SITE AND DOCUMENT EXAMINATION
Examine the job site and bid documents.
Bid submission is your acknowledgment that you have examined the job site and bid documents and are
satisfied with:
1. General and local conditions to be encountered
2. Character, quality, and scope of work to be performed
3. Quantities of materials to be furnished
4. Character, quality, and quantity of surface and subsurface materials or obstacles
5. Requirements of the contract

I need access to the catwalk (high rise section) and the EB side of the trestle.

Inquiry submitted 07/15/2014

Response #1:Submitted for consideration.
Response posted 07/15/2014


Response #2:A site tour is scheduled for July 24, 2014 at 10:00 A.M. at the Paint Yard, Pier 1 of the San Mateo Bridge (Foster City side). Visitors need to register. See the link below for more information.

LINK - www.dot.ca.gov/dist4/construction/contracts/04-041004/tour/tour.html
Response posted 07/18/2014




Inquiry #5: In reference Inquiry #1, it is important to use the proper sized Shotblasting equipment for this project. I recommend the Blastrac 2-4800DH, 48" ride on Shotblaster for this project. With the amount of horsepower and large quantity of abrasive which flows through the system, it is the most viable option for the steel deck prep to a SSPC SP-6. The machine should have no issue abrading the bolts either. The 2-4800 is the most productive Shotblaster on the market. With the fast pace of this project I strongly suggest bidders to use this machine, rather than the common 16" units.
Inquiry submitted 07/16/2014

Response #1:Submitted for consideration.
Response posted 07/16/2014


Response #2:This does not appear to be an inquiry. No response.
Response posted 09/03/2014




Inquiry #6: Section 86-2.19 - System Studies
Please provide the "As-Built" 1-line riser diagram for the 15kV System so we can determine the scope of work for the Short-Circuit & Coordination Study.

Inquiry submitted 07/18/2014

Response #1:Submitted for consideration.
Response posted 07/18/2014


Response #2:The power distribution system uses overcurrent protection only for the incoming and the feeder circuit breakers. The directional overcurrent used on the line feeder has been changed to instantaneous only and therefore, the relay protection coordination should NOT be needed. A one-line diagram is shown on the plans, please elaborate on the "1-line riser diagram for the 15kV System" request.
Response posted 07/24/2014




Inquiry #7: Drawings E-48 through E-68 - shows installing new PLC backboards in each Substation. The drawings appear to be incomplete and thier are now specifications for components/devices to be used.
Is additional information forthcoming?

Inquiry submitted 07/18/2014

Response #1:Submitted for consideration.
Response posted 07/18/2014


Response #2:The PLC backboards in each Substation are existing.
Response posted 07/23/2014




Inquiry #8: Drawing E-24 - indicates conduit replacement in the new barrier rail. General Notes 1 & 2 direct us to replace existing conductors - Please identify the existing cable size, quantity and type.
Inquiry submitted 07/18/2014

Response #1:Submitted for consideration.
Response posted 07/18/2014


Response #2:All services which used to be at this side of the bridge barrier are transferred to the south side of the barrier of the bride.

All existing cables in the existing conduits are abandoned.
Therefore, the new conduits will be empty and are for future use.
Response posted 07/25/2014




Inquiry #9: What method should be used to extend "Existing" conductors to the new bucket locations in the new LVCC's:
1. Butt splices
2. Terminal strip in bottom of LVCC

Inquiry submitted 07/18/2014

Response #1:Submitted for consideration.
Response posted 07/18/2014


Response #2:1) For the control conductors or cables it should be the Terminal strip in bottom of LVCC.

2) For the power conductors and cables it should be Butt Splices.

Response posted 07/23/2014




Inquiry #10: Drawing E-26 - Sheet Note #6 directs us to replace the Circuit Breaker. Please provide drawing for Emergency panelboard so we can determine breaker type & quantity.
Inquiry submitted 07/18/2014

Response #1:Submitted for consideration.
Response posted 07/18/2014


Response #2:

The circuit for the battery charge is label in the panel, but circuit breaker needs to be sized per the NEC and should be based on the current of the nw battery charge.

Response posted 07/23/2014


Response #3:The circuit for the battery charger is labeled in the panel, the circuit breaker should be sized based on the current of the new battery charger per the NEC.
Response posted 07/24/2014




Inquiry #11: On Inquiry #7 - PLEASE MAKE THE FOLLOWING Correction - "there are NO specifications on the components/devices to be used".
Inquiry submitted 07/18/2014

Response #1:Submitted for consideration.
Response posted 07/18/2014


Response #2:Noted. See response to BI#7.
Response posted 09/03/2014




Inquiry #12: Substation 8
There is no single line diagram showing circuit breaker sizes and number of poles per circuit breaker.

Please provide a single line diagram for substation 8.

All the other substations have their single line diagrams.

Inquiry submitted 07/22/2014

Response #1:Submitted for consideration.
Response posted 07/22/2014


Response #2:The size of the breakers are on the plans with the layout of Substation 8.
Response posted 09/03/2014


Response #3:There is no need for an one-line diagram, the Contractor can field verify the breakers in the switchboard.
Response posted 09/04/2014




Inquiry #13: We respectfully request a postponement of the bid date by another 2 weeks due to the late schedule of the pre-bid site visit and the additional time needed to coordinated suppliers and subs.
Inquiry submitted 07/23/2014

Response #1:Submitted for consideration.
Response posted 07/23/2014


Response #2:See Addendum No. 2
Response posted 09/03/2014




Inquiry #14: Sheet E-21, Detail Section DD

Hanger for 12KV cable. Is the hanger shown a UL listed product? If so, who makes it?


Inquiry submitted 07/24/2014

Response #1:Submitted for consideration.
Response posted 07/24/2014


Response #2:It should be UL listed. Contractor can research and choose from several manufacturers.
Response posted 09/02/2014




Inquiry #15: As this project is fairly straight-forward in its work, and due to other bid obligations, it is hoped that this project is NOT delayed.
Inquiry submitted 07/24/2014

Response #1:
Submitted for consideration.
Response posted 07/28/2014


Response #2:Comment noted.
Response posted 09/03/2014




Inquiry #16: On Sheet E-23, the plan shows a SS mesh grip at every expansion joint. For the concrete trestle area, are the expansion joints every 30'?
Inquiry submitted 07/25/2014

Response #1:Submitted for consideration.
Response posted 07/25/2014


Response #2:Yes, the typical spacing of the expansion joints in the concrete barrier in the EB trestle deck area is 30 feet.
Response posted 08/04/2014


Response #3:The detail on e-23 is for the expansion joint at pier 38. At all the remainder expansion joints the contractor should have the armored cable dropped at least 1/2" (half an inch) between the channel struts.
Response posted 09/04/2014




Inquiry #17: On Sheet E-1, Legend No 49 indicates the removal of the existing MV conductors in the concrete barriers. How many conductors are in the barriers which needs to be removed?
Inquiry submitted 07/25/2014

Response #1:Submitted for consideration.
Response posted 07/25/2014


Response #2:
The three Medium Voltage conduits are located at the bottom part of the barriers. Their pull-boxes doors open from top, instead from the side. There is one-1/0 cable in each of these three conduits.
Response posted 07/30/2014




Inquiry #18: Will the platform travelers under the steel girder span be used by the contractor? If so what is the maximum loading capacity of the travelers?
Inquiry submitted 07/28/2014

Response #1:
Submitted for consideration.
Response posted 07/28/2014


Response #2:
The travelers of the San Mateo bridge are not available for the contractor to use.
Response posted 07/29/2014




Inquiry #19: Sheet E-22 shows a typical hanger assembly for the concrete deck. Please provide a typical hanger assembly under the orthotropic steel deck. The spacing between the steel girders are too wide to only use the angle clips shown on sheet E-21. Addition hangers will be required to maintain the 4 feet support requirement.
Inquiry submitted 07/28/2014

Response #1:
Submitted for consideration.
Response posted 07/29/2014


Response #2:See Addendum 2.
Response posted 09/03/2014




Inquiry #20: Q1) Would the State please clarify the Noise Restriction Exceptions Table shown in Special Provision Section 14-8.02A?

Do these noise restrictions and exceptions apply during weeknight lane closures when utilizing Traffic Charts #1 and #2? For example, can unsound concrete repair be allowed under weeknight closures?

Or does this chart only pertain to the 55-hour weekend closures, 10pm Friday night through 5am Monday morning?

Q2) Special Provision section 15-5.01C(8) states “The presence of toxic metals in the abrasives or paint being removed may place restrictions on the methods of cleaning permitted. Comply with all applicable regulations.”

It appears another contractor has removed Epoxy Asphalt Concrete Overlay and replaced it with Polyester Concrete in the last 2 years on this same structure. Can the engineer provide testing reports from the abrasive blasting operation during the test section previously performed? Were any toxic metals found during abrasive blasting operations during the test section?

Inquiry submitted 07/29/2014

Response #1:Submitted for consideration.
Response posted 07/29/2014


Response #2:1) Noise restrictions as stated on Section 14-8.02A apply for the entire whole project, but not during the three bridge full closures. On the other hand, noise exceptions chart on the same section is for bridge full closures only.

Noise restrictions apply during the weeknight lane closures using traffic charts 1 and 2.

Response posted 09/08/2014




Inquiry #21: 1) Special Provision page 25 ( Section 14-8.02A ) first sentence – Does this statement mean 50 feet from beginning and end of job site work limits ( approach and departure of bridge )?
If not so, noise restrictions could render most work during weeknight lane closures ineffective.

2) Special Provision page 38 ( Section 15-5.01C(8)) bullet point #2 – Does this section require the use of a shot blaster to clean the steel deck?

3) Special Provision page 38 ( Section 15-5.01C(8)) – Section mentions toxic metals. Are there known toxic metals in the existing bridge deck coating? If so, in what quantity. Where would the disposal of this material get paid? Would the Department be the hazardous waste generator?

Inquiry submitted 07/29/2014

Response #1:Submitted for consideration.
Response posted 07/29/2014


Response #2:

#1) It applies to 50 feet from beginning and end of construction limits.

#2) Structure Response:
Refer to SSPC-SP 6/NACE no. 3 for the approved methods with steel shot per section 5.2.3. In addition, refer to Addendum No. 2 dated Auguest 21, 2014 which added the sentence to bullet point #2 that states: "Additional removal work with hand tools may be required to comply with the surface preparation requirements."

#3) The presence of toxic metals in the abrasives or paint being removed may place restrictions on the methods of cleaning permitted. Refer also to section 14- 11.08A second paragraph, "The existing paint system on bridge number 35-0054 contains zinc and may also contain lead and chromium.
Response posted 09/05/2014




Inquiry #22: Special Provision Section 86-2.09G(1)d, Quality Control and Assurance, states that proof testing of the 12kV line should reach a maximum of 55kV for 15 minutes. Industry standard for a 15kV cable is 40kV for 5 minutes. Please verify the requirement.
Inquiry submitted 07/29/2014

Response #1:Submitted for consideration.
Response posted 07/29/2014


Response #2:Submitted for consideration.
Response posted 07/30/2014


Response #3:Yes this is the requirement. Bid per plans and specs.
Response posted 08/04/2014




Inquiry #23: I would like to schedule a job-walk for the San Mateo-Hayward Bridge Project. I have (3) people that we need to schedule for the walk.

Inquiry submitted 08/14/2014

Response #1:Submitted for consideration.
Response posted 08/14/2014


Response #2:A tour will be conducted on Wednesday, August 20, 2014.


    Date: Wednesday, August 20, 2014
    Time:10:00 AM
    Where: Pier 1, Maintenance Yard of the San Matio Bridge (Foster City side).


This tour will be identical to the past tour, except the substations on the trestle are not included. Bidders can see Substations 1, 2 and 3 by going through the catwalk. Substation 8 by the Toll Plaza can also be seen if desired.

Email the duty senior if you want to attend the tour.
Email: D4.Construction.Duty.Senior@dot.ca.gov

Visitors are required to wear the following: hard hat, safety vest, safety shoes and safety glasses. Visitors to the catwalk should also bring a safety harness in case it is needed.
Response posted 08/18/2014




Inquiry #24: As a follow up to inquiry #16, does the expansion joint detail on E-23 apply to the EB trestle expansion joints which are 30' apart. Adding 10' of cable every 30' would seem excessive and make for an awkward installation. If that 10' is required every 30', in total it would add in excess of 8,000' of armored cable. Please advise
Inquiry submitted 08/19/2014

Response #1:Submitted for consideration.
Response posted 08/20/2014


Response #2:The expansion joint detail on E-23 applies to the entire EB trestle.
Response posted 09/02/2014


Response #3:The detail on e-23 is for the expansion joint at pier 38. At all the remainder expansion joints the contractor should have the armored cable dropped at least 1/2" (half an inch) between the channel struts.
Response posted 09/04/2014




Inquiry #25: Drawing E-28, Substation 3, has an elevation view (top - middle of sheet) that indicates "New Primary Equipment" and shows new 12kV Primary Switchgear. There is no coresponding sheet note indicating this equipment replacement. The Specification, page 55, "86 Electrical Systems", Item 3, Substation 3 work includes, does not indicate replacing this equipment.
Are we to replace the primary switchgear?
Also, just the opposite is occurring, the drawing is indicating the Power Xfmr ans existing with no sheet note, but the specification cited above is indicating replacement of existing with a new 300KVA.
Are we to replace the primary Transformer?

Inquiry submitted 08/20/2014

Response #1:Submitted for consideration.
Response posted 08/20/2014


Response #2:We are replacing the existing primary Transformer, not the primary switchgear.
Response posted 08/21/2014




Inquiry #26: Drawing E-30, Substation 5, indicates the Primary Xfmr as existing, with no other sheet notes. Specification 86, page 55, Item 5, Substation 5, indicates that we are to replace the existing Primary Transformer with a new 200KVA unit.
Are we to replace the existing Primary Transformer?

Inquiry submitted 08/20/2014

Response #1:Submitted for consideration.
Response posted 08/20/2014


Response #2:The SSP Governs for the project in this case.
Response posted 09/04/2014




Inquiry #27: Drawing E-26, Substation 1, is indicating replacement of (2) Battery Racks, reference Elevation A-A & C-C. The Legend notes for this page indicates Note 2, consisting of (32) NiCd Batteries, indicated on Elevation F. Both Detail Elevations A-A and C-C, are referencing Elevation F.
Are both Battery Racks holding (32) bateries each?

Inquiry submitted 08/20/2014

Response #1:Submitted for consideration.
Response posted 08/20/2014


Response #2:Yes, they both should be holding 32 batteries.
Response posted 08/21/2014




Inquiry #28: Drawing E-26, Substation 1, is indicating replacement of (2) Battery Racks, reference Elevation A-A & C-C. The Legend notes for this page indicates Note 2, consisting of (32) NiCd Batteries, indicated on Elevation F. Both Detail Elevations A-A and C-C, are referencing Elevation F.
Are both Battery Racks holding (32) bateries each?

Inquiry submitted 08/20/2014

Response #1:Duplicate of BI#27 above.
Response posted 08/20/2014




Inquiry #29: Drawing E-33, Substation 8, indicates sheet note 37 for the existing Primary Xfmr. Drawing E-1, Notes & Legend, indicates Note 37 as replacement of existing transformer with new 500KVA Unit. Specification 86, page 56, Item 8.2, indicates replacement of existing primary transformer with new 300KVA unit.
What size of Transformer are we to purchase, 300 or 500KVA?

Inquiry submitted 08/20/2014

Response #1:Submitted for consideration.
Response posted 08/20/2014


Response #2:The rating of the transformer is in the Note on the sheets and the special provisions addresses the specifications of the transformer and the work to be done.
Response posted 08/21/2014


Response #3:SSP Governs for the project.
Response posted 09/04/2014




Inquiry #30: Drawing E-28, Substation 3, does not indicate replacement of the existing primary transformer, however, Specification 86, page 55, Item 3 indicates replacement with new 300KVA Unit. (see previously submitted question).

On our jobwalk, there equipment replacement access to substaion 3 housing, would be via removal of an existing CMU Block wall. Also, the width of the access past the existing Primary Switchgear, appears very limited and we question whether a new primary Transformer will fit through that access space? On the outside of the CMU wall, there is an existing Sign structure pole, which will also hinder access of the transformer repalcement, and finally it appears that the only way to handle the installation of the new transformer & removal of the existing transformer would be via a barge, with a crane????
Is it your intent to remove the existing primary SWGR to provide sufficent access to remove & replace the primary transformer?
Was it your intent to have the block wall removal as the only access point to remove and replace the existing primary transformer?

Inquiry submitted 08/20/2014

Response #1:Submitted for consideration.
Response posted 08/20/2014


Response #2:No, it is not the intent to remove the existing primary SWGR to provide sufficient access to remove & replace the primary transformer. It is up to the Contractor to figure it out. The primary transformer is near the roll up door, not the existing primary SWGR.
Response posted 08/21/2014




Inquiry #31: Drawings E-29,30,31 and 32, representing Substations 4, 5, 6 & 7, are indicating a 3-teir Battery Rack with a height of approximately 78" as opposed to Drawings E-26,27,28 and 33, representing Substations 1, 2, 3 & 8, that are only indicating a 2-teir Battery Rack of approximately 63".
All (8) Substations are indicating a total of (32 each) batteries for each rack.
What is the reason for the larger 3-teir racks, as opposed to the 2-teir racks if all SS have (32) batteries?

Inquiry submitted 08/20/2014

Response #1:Submitted for consideration.
Response posted 08/20/2014


Response #2:The width of the larger 3-tier racks is smaller in the area in which the battery racks would need to go in the Substations.


Response posted 08/21/2014




Inquiry #32: Drawing E-24, which appears to indicate concrete barrier replacement, with considerable new electrical component replacement of #9A Boxes, conduit and expansion fittings at each location, is represented.
It is unclear as to the quantity and location of these replacements.
How many of these barrier replacements, represented by this drawing detail are there?

Legend General Notes 1 & 2 are indicating replacement of the existing power and communication cables within the above barrier conduits. Previous Inquiry #8, asked this question. The response was that the cables in the existing conduits are abandoned.
To what extent are we to remove these existing cables?
Only whatever is necessary to re-construct barrier conduits or totally remove cables?

Inquiry submitted 08/20/2014

Response #1:Submitted for consideration.
Response posted 08/20/2014


Response #2:The is a single segment of the barrier to be replaced and is indicated on sheet E-15.

The contactor will not be responsible removing the existing cables at this location, the North side barrier of EB of this highway.

Response posted 09/02/2014




Inquiry #33: Drawing E-23, and E-1 Note 14 referencing Dwg E-23, are indicating the armored MV cable detail for the expansion joint crossing, allowing 10' of slack cable, supported on either side of the joint by the stainless steel mesh grips.
Previous Inquiry #16, confirmed expansion joint spacing on the concrete barrier trestle section of the bridge as every 30'. With this portion of bridge being 25,770', that would be approximately 860 each expansion joints requiring this detail.
Will the armored cable running along the catwalk, below the bridge, for the raised portion of the bridge (9,680') also require the 10' slack at expansion joints?
Drawings 95 0f 117 through 98 of 117, appear to be indicating expansion joints on this portion of bridge at approximately every 400'.
How often does the expansion joints occur and are we to provide the 10' of slack per the E-23 Detail at these locations as well?

Inquiry submitted 08/20/2014

Response #1:Submitted for consideration.
Response posted 08/21/2014


Response #2:Yes, at every expansion E-23 will be applied including the armored cables under the catwalk.
Response posted 09/02/2014




Inquiry #34: Drawing E-21, Detail Section A-A, indicates the new MV Armored Cable as being installed on the outside of the catwalk structure.
The approximate distance between the 12"x12"x72" Trough Gutters, are approximately 1,100' of cable.
It will be extremely difficult to pull or temporarily support this distance of cable along the outside of the catwalk, especially with the weight of the cable.
Is it permissable to install the armored cable on the upper inside of the catwalk support structure? (This way the cable could be layed out on the catwalk and raised into it support position off of the upper floor beams)

Inquiry submitted 08/20/2014

Response #1:Submitted for consideration.
Response posted 08/21/2014


Response #2:It is not permissible to install the armored cable on the upper inside of the catwalk support structure because there is no enough clearance.
Response posted 09/02/2014




Inquiry #35: Due to the difficult installation requirements, requiring further analysis as to best cost-effective and safe installation methods, is there any consideration for a bid date extension?
Inquiry submitted 08/20/2014

Response #1:Submitted for consideration.
Response posted 08/21/2014


Response #2:See Addendum No. 2.
Response posted 09/03/2014




Inquiry #36: We would like to schedule a job-walk for the San Mateo-Hayward Bridge Project. We have at least three people that we need to walk this project. Thank you.
Inquiry submitted 08/20/2014

Response #1:There are no more scheduled job walks.
Response posted 09/03/2014




Inquiry #37: Addendum 2 Sheet E-21 shows HSS Steel Tubing 3" x 3" x 1/4" mounted to the underside of the bridge beams. Does this steel tubing and all the hardware need to be Stainless Steel or can the tubing be Aluminum with zinc hardware?
Inquiry submitted 08/26/2014

Response #1:Submitted for consideration.
Response posted 08/26/2014


Response #2:The HSS 3x3x1/4 and all connectors and fasteners need to be cleaned and painted (Prime and Finish) to match existing bridge's paint system in materials and colors.
Response posted 09/05/2014


Response #3:The HSS 3x3x1/4 and all connectors and fasteners are all hollow structural steel (HSS).
Response posted 09/08/2014




Inquiry #38: Addendum 2 Sheet E-21 Details Wire Through Mounting Detail & Detail Section B-B. Detail Section B-B shows a 6' x 12" x 12" NEMA 3R Pull Box inside of a manufactured steel shell/ box with (2) ea. L2 x 2" x 1/4" x 6' along the bottom of the manufactured shell/box and supported with 1-1/2" x 1/4" strapping at both ends of box for support?

Or the Detail for the Wire Through Mounting Detail shows the NEMA 3R Box enclosed inside a manufactured box with L2 x 2" x 1/4" supports at the bottom of the box and enclosed around the entire NEMA 3R Pull Box?

How do we access the NEMA 3R Pull Box in either detail? Can you clarify the detail measurements to show how these supports or boxes are to be manufactured? Can you clarify the front and right side views to work together? How far from the bridge beams are they hanging? What type of material, hardware and paint are needed for these manufactured boxes/supports?

Inquiry submitted 08/26/2014

Response #1:Submtitted for consideration.
Response posted 08/26/2014


Response #2:The NEMA box is to be supported by two straps parallel to the cable path. The straps are to be hung off of the floor beam bottom flange and the new HSS3x3x1/4 using hangers. All steel elements are to be cleaned and painted (prime and finish coats) to match existing bridge's paint system materials and colors.
Response posted 09/05/2014






The information provided in the responses to bidder inquiries is not a waiver of Section 2-1.03, “Examination of Plans, Specifications, Contract, and Site of Work,” of the Standard Specifications or any other provision of the contract, nor to excuse the contractor from full compliance with the contract. Bidders are cautioned that subsequent responses or contract addenda may change a previous response.