Viewing inquiries for 04-3G4844

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Inquiry #1: Regarding bid Item 8 - Temporary Railing (Type K) @ a quantity of 25,000 lineal feet; and bid item 9 - Temporary Crash Cushion Module @ 36 each - Please provide a drawing of the location of these items or at the very least a description of where they go.


Inquiry submitted 10/29/2013

Response #1:Submitted for consideration.
Response posted 10/29/2013


Response #2:See Addendum No. 3.
Response posted 02/18/2014




Inquiry #2: Are the prevailing wage rates current at the time of the bid opening good for the duration of the contract?
Inquiry submitted 10/31/2013

Response #1:Submitted for consideration.
Response posted 10/31/2013


Response #2:Yes.
Response posted 02/18/2014




Inquiry #3: In regards to the environmental conditions and recoat schedules specified in Section 59 of the Special Provisions, there are moisture cured products on the market that meet the Caltrans formulation requirements and can be applied outside of what is defined in the Specials.

It is common for moisture cured products to be applied in humidity ranges between 6% and 99%. The Specials call for the humidity to be between 35% to 85%.

Some moisture cured products can be overcoated in as little as 20 minutes and as long as the surface is clean, they have an unlimited recoat window. Regardless of the environmental conditions, the Specials require 20 hours before overcoating and a maximum recoat time of 7 days.

There is also a requirement for pressure rinsing if 48 hours pass between coats. If the surface is clean and inside containment, the rinsing is adding an unnecessary step to the recoating process.

With weather conditions common to the project location, these items can cause significant, unnecessary delays in the progress of the work.

If a product meets the physical requirements for this work and is acceptable to Caltrans, will the manufacturer’s recommendations supersede the restrictions placed by the Special Provisions?

Inquiry submitted 11/01/2013

Response #1:Submitted for consideration.
Response posted 11/01/2013


Response #2:Unless an addendum is issued, bid per the current contract documents.
Response posted 11/19/2013




Inquiry #4: Hello,

The table on Page 19 of the Special Provisions shows the coating system as PWB but the table on Page 20 describes a moisture cured system.

What is the specified coating system for this project?

Inquiry submitted 11/05/2013

Response #1:Submitted for consideration.
Response posted 11/05/2013


Response #2:Unless an addendum is issued, bid per current contract documents.
Response posted 11/19/2013




Inquiry #5: 59-2.03(3)(c) Finish Coat....The finish coat must match color no. 17178 of Fed Std -595. Question is must match the color i.e solid color or contain aluminum plate?
Inquiry submitted 11/06/2013

Response #1:Submitted for consideration.
Response posted 11/07/2013


Response #2:Contractors should match the color chip for Fed color # 17178. Moisture-cured polyurethane system specified is compatible with the existing coating system on the bridge.
Bid per current contract documents.
Response posted 11/14/2013




Inquiry #6: 14-11.08E(2) Debris Waste Characterization
When testing spent abrasive, which test is to be used to determine if the spent abrasive is "Nonhazardous Waste", EPA 6010B, CA WET or TCLP.

Inquiry submitted 11/07/2013

Response #1:Submitted for consideration.
Response posted 11/08/2013


Response #2:California has stricter hazardous waste laws than the federal government, but federal hazardous waste (RCRA waste) requires different handling than California only hazardous waste. Therefore analytical results of all three methods (EPA 6010, California Waste Extraction Test [WET], and TCLP) must be evaluated to determine whether the waste is hazardous and how to manage it. Whether the spent sandblasting residue is a California hazardous waste is determined by the and EPA method 6010B; the WET is the laboratory process of trying to dissolve metals from the waste residue, in an acidic solution and the amounts of dissolved metals are quantified by EPA method 6010B to produce a soluble test result which is compared to the California Solubility Threshold Limit Concentration (STLC). Samples are also fully digested and analyzed for total metals by method 6010B to produce a test result which is compared to the California Total Threshold Limit Concentration (TTLC). If the soluble and total metal concentrations are found to be below their respective STLC and TTLC values, the residue is not a California hazardous waste. If either the STLC or the TTLC are exceeded the waste is hazardous in California.
Federal hazardous waste laws require the use of the Toxicity Characteristic Leaching Procedure (TCLP) to dissolve metals from the waste residue material. The dissolved metals in the solution are quantified again by EPA method 6010B. Federal law defines its own set of TCLP-based thresholds for determining if a waste material is a federal hazardous waste under the Resource Conservation and Recovery Act (RCRA).

Response posted 03/04/2014




Inquiry #7: Sheet 8 of 9 shows a note that the average thickness of the existing paint is 60 mils.

Has the moisture cured urethane system been successfully tested over this coating?

Inquiry submitted 11/08/2013

Response #1:Submitted for consideration.
Response posted 11/08/2013


Response #2:Yes, please bid per current contract documents.
Response posted 02/14/2014




Inquiry #8: If barges are used for the contractors equipment can they be moored to the bridge piers? Or do they have to be anchored independently of the bridge structure?
Inquiry submitted 11/08/2013

Response #1:Submitted for consideration.
Response posted 11/08/2013


Response #2:No. Barges will not be allowed to be moored to the bridge structure.
Response posted 02/19/2014




Inquiry #9: Will the state provide a laydown area for the contractors use on either the Richmond or San Rafael side of the bridge?

Will the laydown area have adequate parking for worker vehicles?

Will the laydown area have a dock?

Inquiry submitted 11/08/2013

Response #1:Submitted for consideration.
Response posted 11/08/2013


Response #2:No. The State will not provide any area for contractor use.

Response posted 02/18/2014




Inquiry #10: The San Rafael Bride is over navigable waters please verify if USL&H insurance is or is not required.
Inquiry submitted 11/08/2013

Response #1:Submitted for consideration.
Response posted 11/08/2013


Response #2:Bid per current plans and specs.
Response posted 03/18/2014




Inquiry #11: At the prebid meeting will contractors have an opportunity to inspect the bridge?

Will a snooper truck be provided?

If a snooper truck is not provided will a boat be provide so contractors can view the underside of the structure?

Inquiry submitted 11/08/2013

Response #1:Submitted for consideration.
Response posted 11/08/2013


Response #2:After the prebid meeting, Caltrans will provide a tour so contractors can view the underside of the structure.
Response posted 02/19/2014




Inquiry #12: Are more as built drawings available than those provided with the bid documents?


Inquiry submitted 11/08/2013

Response #1:Submitted for consideration.
Response posted 11/08/2013


Response #2:More as built drawings were added to the informational handout.

See the link - http://www.dot.ca.gov/hq/esc/oe/project_ads_addenda/04/04-3G4844/supplemental_info/04-3G4844IH.pdf
Response posted 02/19/2014




Inquiry #13: Are the steel tower structures of piers 19 - 33, 36 -46 and 49-61 part of the scope of work?
Inquiry submitted 11/08/2013

Response #1:Submitted for consideration.
Response posted 11/08/2013


Response #2:No, please bid per current contract documents.
Response posted 01/13/2014




Inquiry #14: Per page 19 of the specification and the bid form the project is expressed as a spot blast and overcoa:

Richmond - San Rafael
Bridge
No. 28-0100
Clean (includes removal of rust,
abandoned nests, accumulated debris,
animal and bird droppings (up to 2 feet
thick in some locations)), spot blast
clean, and paint portions of the
existing bridge, as shown.
State Specification PWB

But page 20 of the specification calls for a full blast of the entire bridge:

Blast clean all steel surfaces on bridge no. 28-0100 to bare metal under SSPC-SP 6/NACE no. 3. After
blast cleaning, surfaces must have a dense, uniform, angular anchor pattern of at least 1.5 mils when
measured under ASTM D 4417.

Which is correct?

Inquiry submitted 11/08/2013

Response #1:Submitted for consideration.
Response posted 11/12/2013


Response #2:See addendum #3.
Response posted 02/26/2014




Inquiry #15: Bid Item #2 is listed as Construction Site Management.

Bid Item #10 is listed as Job Site Management.

Section 13-4 Job Site Management of the 2010 Standards concludes with the statement, "Job site management is paid for as construction site management."

Please define how the costs for Bid Items #2 and #10 should be bid for this project.

Inquiry submitted 11/11/2013

Response #1:Submitted for consideration.
Response posted 11/12/2013


Response #2:See Addendum No. 3. Bid item No. 2 was deleted.

Response posted 02/19/2014




Inquiry #16: 14-11.08E(3)(b) Hazardous Waste Debris on Page 18 of the Special Provisions states hazardous waste must be disposed of at an appropriately permitted class I facility located in California.

I am not aware of any Class 1 disposal facilities in California currently accepting lead contaminated spent abrasive classified as hazardous.

If the waste is classified as hazardous will disposal outside of California be acceptable?

Inquiry submitted 11/11/2013

Response #1:Submitted for consideration.
Response posted 11/12/2013


Response #2:There are two class I hazardous waste landfills in California that typically accept metals-contaminated, hazardous-waste sandblasting residue. The two facilities are Clean Harbors in Buttonwillow and Chemical Waste Management’s Kettleman Hills in Kettleman, CA. If for some unanticipated reasons these two facilities couldn’t accept the hazardous waste sandblasting residue, then a contract change order would have to be prepared to allow for disposal at a federal permitted hazardous waste disposal facility outside of California. Before a contract change order would be considered, documentation from the facilities in Buttonwillow and Kettleman Hills indicating that they could not accept the waste would have to be produced by the contractor.
Response posted 03/04/2014




Inquiry #17: The section "Add to section 59-2.03B(2)(b):" on page 20 states, "Blast clean all steel surfaces on bridge no. 28-0100 to bare metal under SSPC-SP 6/NACE no. 3. After blast cleaning, surfaces must have a dense, uniform, angular anchor pattern of at least 1.5 mils when measured under ASTM D 4417."

The bid item for Spot Blast Clean and Paint Undercoat lists a quantity of 280,000 SQFT.

Is the intention of the Special Provisions to blast clean the entire area defined on Sheet 8 of 9 in the project drawings or the listed 280,000 square feet?

Inquiry submitted 11/11/2013

Response #1:Submitted for consideration.
Response posted 11/12/2013


Response #2:Unless an addendum is issued, bid per the current contract documents.
Response posted 11/20/2013


Response #3:Refer to Addendum # 3, dated February 14, 2014.
Response posted 02/21/2014




Inquiry #18: Please identify in which spans and approximate location in the span the permanent bridge maintenance travelers are parked: those that are on the traveler rails under the lower deck, and any vertical side travelers that are located in the spans to be painted under this contract. For example, "a traveler platform is parked under the lower deck just east of Pier 21".
Inquiry submitted 11/13/2013

Response #1:Submitted for consderation.
Response posted 11/14/2013


Response #2:Structure's Response:
The current approximate location of existing travelers.
Pier 19 (West side of Pier 19)
Pier 27 (West side of Pier 27)
Pier 33 (West side of Pier 33)
Pier 34 (West side of Pier 34)
Pier 35 (West side of Pier 35)
Pier 36 (West side of Pier 36)
Pier 44 (West side of Pier 44)
Pier 47 (West side of Pier 47
Pier 48 (East side and West side of Pier 48)
Pier 56 (West side of Pier 56)
Pier 66 (West side of Pier 66)
Location of travelers may change before work begins.

Response posted 02/26/2014




Inquiry #19: Bid item 8 calls for 25,000 LF of K rail neither of the traffic control plans provided in the project drawings show K rail. Is it the intention to provide a K rail barrier for the right shoulder over the entire length of the bridge?
Inquiry submitted 11/13/2013

Response #1:Submitted for consideration.
Response posted 11/14/2013


Response #2:See Addendum No. 3. K rail will be use for right shoulder closure at the work areas.

Response posted 02/19/2014




Inquiry #20: I don't see 14-6.03 BIRD PROTECTION referenced in the Special Provisions.

Are the requirements of 14-6.03 BIRD PROTECTION from the Standard Specifications going to apply to this project?

Inquiry submitted 11/14/2013

Response #1:Submitted for consideration.
Response posted 11/14/2013


Response #2:See Addendum No. 3.
Response posted 02/19/2014




Inquiry #21: There are numerous additional steel members added during the 2001 seismic retrofit that do not show up on the as-built drawings provided. At the first span adjacent to each cantilever span there are retrofit members that extend below the bottom of the limits of painting shown on sheet 8 of 9 in the bid package drawings. Additionally, there are added members and mechanisms like hydraulic cylinders in various locations. Please define how much of the retrofit structural steel gets painted as part of this contract. and what needs protected and not painted.
Inquiry submitted 11/15/2013

Response #1:Submitted for consideration.
Response posted 11/15/2013


Response #2:See addendum #3.
Response posted 02/21/2014




Inquiry #22: At bents 34, 44 and 54 do the stringer and associated structure between the 289' spans at these locations get painted? If yes, can you provide as-builts for these including the seismic retrofit.
Inquiry submitted 11/15/2013

Response #1:Submitted for consideration.
Response posted 11/15/2013


Response #2:See addendum #3 dated February 14, 2014.
Response posted 02/21/2014




Inquiry #23: In the drawings provided with the bid package, sheet 8 of 9 denotes what is to be cleaned and painted with solid lines, structure not to be cleaned and painted is shown with dashed lines. The handrailing and "upper" or roadway side of the sidewalks are shown as not being cleaned and painted. The bottom of the sidewalk and back side of the sidewalk supports are shown to be painted. However it is unclear if the back side of the vertical sidewalk panel beneath the bridge rail gets painted. The flat lip that the hand rail posts bolt to is clearly shown as dotted lines and therefore does not get cleaned and painted.

However, the elevation view on sheet 9 of 9 indicates that everything from the bottom chord up 10' gets painted.

Please clarify what gets cleaned and painted in relation to the members associated with the sidewalk.

Inquiry submitted 11/15/2013

Response #1:Submitted for consideration.
Response posted 01/13/2014


Response #2:See addendum #3.
Response posted 02/21/2014




Inquiry #24: In reference to responses to some of the previously submitted questions, what is the order of precedence of the project documents?


Inquiry submitted 11/20/2013

Response #1:Submitted for consideration.
Response posted 11/20/2013


Response #2:Refer to Section 5-1.02, "Contract Components," of the Standard Specifications.
Response posted 02/19/2014




Inquiry #25: Can a contractor with a "B' License bid on this project as a prime contractor?
Inquiry submitted 11/27/2013

Response #1:Submitted for consideration.
Response posted 12/03/2013


Response #2:No, see Notice to Bidders.
Response posted 02/19/2014




Inquiry #26: Per 2010 Standard Specifications, page 271, Section 59-2.03C(1) Under "Paint existing structural steel". It states to caulk contact surfaces of stiffeners, railings, built up members, or open seam more than 6 mils wide. Apply sealing compound no sooner than 72 hours after the last application of undercoat unless authorized. Cure the sealing compound as recommended by the manufacture before subsequent painting activities.

1. Is it Caltrans intensions to caulk all contact surfaces of stiffeners, railings, and built up members?

2. Will Caltrans identify all areas on the bridge that exceed 6 mils for bidding purposes? Due to very limited access to the bridge the contractor has no idea of the areas that exceed 6 mils in width.

Inquiry submitted 12/03/2013

Response #1:Submitted for consideration.
Response posted 12/03/2013


Response #2:1) Yes. Bid per current contract documents.

2) No. Bid per current contract documents.
Response posted 01/15/2014


Response #3:1) Refer to Section 59-2.03C(1) of the Standard Specifications for areas that need to be caulked.

2) Caltrans estimated caulking quantity is +/- 14,400 LF for the total 36 spans.
Response posted 03/18/2014




Inquiry #27: 7-1.02K(6)(e)(ii) Bridge Scaffolding on page 8 of the Special Provisions states, "1. Scaffolding live loads up to 45 psf may be placed at maximum two panels at a time within each span."

59-2.03B(3)(b)(ii) Design Criteria on page 242 of 278 of the Revised Standard Specifications states for spot blasting jobs, the platform needs only be designed to 25psf, not the 45psf required for full blast jobs.

Since this is a spot blast, not a full blast, and the applicable live load rating for the platform is 25psf, not 45psf, can the number of panels in a span on which live load can be placed be increased to more than the two that are stated in Section 7-1.02K(6)(e)(ii)? For a platform 48’wide, two panels equates to 3,456 square feet of platform area. At 45psf spread equally over the two panels, a total of 77.8 tons of live load could be placed on those two panels. For a spot blast job, we will not even come close to those kind of loads. Live loads from spot blasting, if spread evenly over the entire platform should not exceed 10-15psf. Limiting the live loading to two panels per span unnecessarily restricts the work flow and schedule.

Inquiry submitted 12/17/2013

Response #1:Submitted for consideration.
Response posted 12/18/2013


Response #2:See Addendum #3.
Response posted 02/19/2014


Response #3:Section 7-1.02K has been revised. See addendum #3
Response posted 02/19/2014




Inquiry #28: Caltrans requires the use of caulking on this project. (1)Can Caltrans provide the bidders with an estimated linear feet of caulking on this project? (2) Can a linear foot item for caulking be implemented in this bid, as opposed to it being include in a Lump Sum painting item? (3) What will the process or procedure in the field be related to identifying areas to be caulked?
Inquiry submitted 12/30/2013

Response #1:Submitted for consideration.
Response posted 12/31/2013


Response #2:(1) There is no item for caulking. To aid the contractor: There is approximately 14,400 LF of caulking on this job. Bid per current contract documents.

(2) No separate item will be added for caulking. Bid per current contract documents.

(3) In the Standard Specifications under Section 59-2.03 (C)1 identifies what needs the areas to be caulked. The Engineer will inspect your work and determine what requires further work for completion/compliance.

Response posted 03/17/2014




Inquiry #29: (1)What will be the process/procedure related to identifying areas to be spot blasted and painted under item 15 spot blast clean and paint undercoat?
(2)What will be the process/procedure for measuring areas for payment purposes be for item 15 spot blast clean and paint undercoat?
(3) What resources will Caltrans require of the contractor related to the processes/procedures mentioned in questions 1 and 2 above for item 15 spot blast clean and paint undercoat?

Inquiry submitted 12/30/2013

Response #1:Submitted for consideration.
Response posted 12/31/2013


Response #2:1) After the containment system is in place, Caltrans Representative (the Engineer) will identify obvious areas to be spot blasted. After the pressure wash operation is completed in a panel, the Caltrans Representative (the Engineer) will identify any additional areas that require spot blast cleaning or more complete spot blast cleaning.

2) The Engineer will discuss with the Contractor and determine prior to the start of any work.

3) The Engineer will discuss with the Contractor and determine prior to the start of any work.

Response posted 02/26/2014




Inquiry #30: The Notice to Bidders establishes no DVBE contract goal but encourages bidders to obtain DVBE participation. Given this, is Specification Section 2-1.15C(2), DVBE Incentive, applicable to Prime Contractors who achieve a participation level of 1% or greater?
Inquiry submitted 02/04/2014

Response #1:Submitted for consideration.
Response posted 02/04/2014


Response #2:Yes. See Standard Specification 2010 Section 2-1.15C(2) and 2-1.15C(3).
Response posted 03/12/2014




Inquiry #31: How can I get copies of the photo handouts distributed in the prebid meeting?
Inquiry submitted 02/21/2014

Response #1:You can download the pictures from the webpage link below:


Response posted 02/21/2014




Inquiry #32: Can you post a list of people that attended the prebid meeting?
Inquiry submitted 02/21/2014

Response #1:You can download the list below:


Response posted 02/21/2014




Inquiry #33: paragraph 59-2.03C(1) General under paint Existing Structural Steel:

States "precede each undercoat by stripe coat of undercoat paint on all edges, corners, seams, crevices, interior angles, junctions of joining members, weld lines, and similar surface irregularities". Please confirm that stripe coating will be required as stated in this paragraph.

Inquiry submitted 02/25/2014

Response #1:Submitted for consideration.
Response posted 02/26/2014


Response #2:Stripe coating is required under Section 59-2.03C(1). Please bid per current contract documents.
Response posted 02/28/2014




Inquiry #34: The details regarding scaffolding in addendum 3 indicate a span (289’ section between towers) cannot experience both Scaffold Live Load (SLL) and Additional Deck Load (ADL), other than K-rail, simultaneously. It was also clarified at the mandatory pre-bid that scaffold had to be in place and decked prior to February 15 for work to proceed during the period when scaffold installation and removal is not allowed (Feb 15 through Sept 15). Only nominal scaffolding on top of the main deck (i.e for support of containment tarps or to access areas not reachable from the main platform deck) could be placed, moved, or removed during this period. If a complete scaffold is in place on a span, whether or not work is active, will that span be considered to have a Scaffold Live Load, therefore precluding any ADL in that span?
Inquiry submitted 03/03/2014

Response #1:Submitted for consideration.
Response posted 03/03/2014


Response #2:7-1.02K(6)(e)(ii) Definitions


    Scaffold Dead Load (SDL): Weight from any elements of the scaffolding, the ventilated containment system and the species protection measures that are required for performing work.

    Scaffold Live Load (SLL): Weight from any materials, equipment, tools, and personnel that are required to be present on the scaffold for performing the work.

    Additional Deck Load (ADL): Loads on the bridge deck due to construction activities, including temporary railing (type K), parked construction vehicles, equipment, and containers.

When work is not active on a span with scaffolding (SDL only - no SLL), then ADL on that span is allowed.
When work is active on a span (SDL + SLL), then ADL is not allowed on that same span except for temp K Rail.
(see note under Bridge Scaffolding Table Section 7-1.02K (6)(e)(iv).

Response posted 03/05/2014




Inquiry #35: Per Special Provisions, Notice to Bidders it states 720 working days.

Per the mandatory meeting Caltrans stated that the first working day would be Sept 15, 2014 which means Sept 15, 2017 would be the last day of the contract.

Per Addendum No.3 Section 14-6.02C(5) Number 2. States not to place or remove scaffold from Feb 15 to Sept 15.


From Feb 15, 2017 to Sept 15, 2017 no work could take place as the scaffold could not be removed due to the time constraints under the protection measures.

All the scaffold would need to be removed prior to Feb 15, 2017. therefore we have lost 140 working days of the contract due to Protection Measure requirements.

Due to the time constraints and difficulty of the project does Caltrans intend to extend the contract from Sept 15, 2017 to Feb 15, 2018 so the contractor can use the additional time to remove the scaffold.

Inquiry submitted 03/03/2014

Response #1:Submitted for consideration.
Response posted 03/03/2014


Response #2:See Addendum No. 4.
Response posted 03/13/2014




Inquiry #36: Please confirm whether this contract is a Federal or Non-Federal Funded Contract.
Inquiry submitted 03/06/2014

Response #1:Submitted for consideration.
Response posted 03/06/2014


Response #2:No federal fund is allocated to this project.
Response posted 03/12/2014




Inquiry #37: How will scaffolding / staging installation be paid? Will it be paid for per a schedule of values or will the scaffolding subcontractor be required to wait until completion of the painting contractors work?
Inquiry submitted 03/07/2014

Response #1:Submitted for consideration.
Response posted 03/10/2014


Response #2:The Scaffolding will be paid based on schedule of values.
Response posted 03/18/2014




Inquiry #38: On the revised plan sheet 8 supplied with addenda 3 we note the curb and handrail assembly is now shown by dotted lines appearing to indicate that the outer face of the handrail and the underside of the curb are no longer part of the scope of work. Is this correct?
Inquiry submitted 03/10/2014

Response #1:Submitted for consideration.
Response posted 03/10/2014


Response #2:The steel curb and the hand rails are not to be painted, per Addendum No. 3, see plan sheet 8 of 9.
The backside (non-traffic side) of the vertical face of the steel barrier is to be painted per Addendum No. 3, see plan sheet 8 of 9.

Response posted 03/14/2014




Inquiry #39: Have adhesion(pull)tests been performed on the existing coatings?
Inquiry submitted 03/10/2014

Response #1:Submitted for consideration.
Response posted 03/13/2014


Response #2:No adhesion tests have been performed. Bid per current contract documents.
Response posted 03/17/2014




Inquiry #40: Can the WPC Manager be doing other duties on the project?
Does the WPC Manager need to be an independent contractor or can this person be an in house employee?

Inquiry submitted 03/10/2014

Response #1:Submitted for consideration.
Response posted 03/11/2014


Response #2:WPC Manager could be an independent contractor or can be in house employee and may perform other duties.
Response posted 03/12/2014




Inquiry #41: Will the laydown yard beside the toll plaza that has traditionally been used by contractors working on the San Rafael Bridge be made available for the contractors use on this project?
Inquiry submitted 03/10/2014

Response #1:Submitted for consideration.
Response posted 03/11/2014


Response #2:Contractor is responsible for their own lay-down (area for contractor to use) area.
Response posted 03/12/2014




Inquiry #42: Addenda 3 added section 14-8.02A regarding noise monitoring. The added paragraph indicates "Work specified in this paragraph is paid for as noise monitoring".

There is not a pay item for noise monitoring on the bid form provided with addenda 3.

Is noise monitoring to be considered as part of item 10 job site management?

Inquiry submitted 03/10/2014

Response #1:Submitted for consideration.
Response posted 03/11/2014


Response #2:See Addendum 4.
Response posted 03/13/2014




Inquiry #43: The bid item list provided with addenda 3 indicates that time related overhead (item 4) should be figured for a contract duration of 712 working days. The notice to bidders indicates a contract time of 720 working days. Which is the correct contract duration 712 or 720 working days?
Inquiry submitted 03/10/2014

Response #1:Submitted for consideration.
Response posted 03/11/2014


Response #2:See Adendum No. 4
Response posted 03/13/2014




Inquiry #44: Is the K-Rail to be used only where equipment is staged on the shoulder? If not, where else must K-Rail be employed?
Inquiry submitted 03/10/2014

Response #1:Submitted for consideration.
Response posted 03/11/2014


Response #2:K-Rail will be use to protect the work area.
Upon approval of the Engineer, placing K-Rail at smaller segment of the work area (where equipment is staged) is acceptable.

Response posted 03/13/2014




Inquiry #45: Ref. 2.03B(2)(a): If there is loose paint left after pressure washing is the removal method SSPC SP-6?
Inquiry submitted 03/11/2014

Response #1:Submitted for consideration.
Response posted 03/12/2014


Response #2:Pressure washing, intentionally or not, cannot be used to strip the bridge of loose paint.
Response posted 03/13/2014


Response #3:Please see the standard specifications section 59-2.03B(2)(a) 3rd paragraph.
Response posted 03/14/2014




Inquiry #46: Ref.: 59-2.03B(2)(a) Is loose paint considered a foreign material?
Inquiry submitted 03/11/2014

Response #1:Submitted for consideration.
Response posted 03/12/2014


Response #2:No, loose paint is not foreign material.
Response posted 03/12/2014


Response #3:
Response posted 03/13/2014




Inquiry #47: Section 2-1.15c(1) of the Standard Spec, DISABLED VETERAN BUSINESS ENTERPRISES states:

If you obtain DVBE participation:

1. Complete and Submit the Certified DVBE Summary form. List all DVBE participation on this form.

2. List each 1st tier DVBE subcontractor in the Subcontractor List form regardless of percentage of the total bid.

FURTHERMORE:

Page 9 of the bid book, the Form titled Certified DVBE Summary, states: Names of first tier DVBE subcontractors and their items of work listed must be consistent with the names and items of work in the Subcontractor List submitted with the bid.

Our question is:
If the DVBE company is not a subcontractor, but is a supplier of traffic supplies and rentals, Waste disposal company, and/or trucking company, etc., are the bidders required to include this company on the Subcontractor List form(page 4 of the Bid Book) ?

Inquiry submitted 03/12/2014

Response #1:Submitted for consideration.
Response posted 03/12/2014


Response #2:No, they don’t have to be listed but the traffic suppliers/rentals should be listed if it is more than 0.5%.
Response posted 03/14/2014


Response #3:The bidder must comply with the requirement to list subcontractors per the CA Public Contract Code Section (PCC) 4100.
If the DVBE firm is being used as a supplier or a subcontractor they must be listed on the form.

Response posted 03/17/2014




Inquiry #48: The standard specification 59-2.03 B (2) (a) lists 3 paragraphs. The first paragraph, directs us to pressure wash or steam clean existing surfaces and to not remove sound paint and then de-gloss remaining sound paint. The paragraph then goes on to state “Remove paint that becomes loose, curled, lifted or that loses its bond after cleaning to sound paint or metal”

Question: If the specified pressure washing does not remove loose paint, how is the loose paint to be removed (how can there be loose paint) after the cleaning and de-glossing operation is “completed to sound paint” which is sequenced above?

Question: If the paint is loose after cleaning (to sound paint), or there is rust and foreign material after the cleaning, should this be remedied by the spot abrasive blasting specified in the contract special provisions?

Question: If there is remaining loose and dis-bonding paint and foreign material after the pressure washing, will this be designated by the engineer to receive the spot abrasive blasting specified in the contract special provisions?

Inquiry submitted 03/12/2014

Response #1:Submitted for consideration.
Response posted 03/13/2014


Response #2:For all three questions above, please see the 3rd paragraph of Section 59-2.03B(2)(a) of the Standard Specification.
Response posted 03/18/2014




Inquiry #49: The standard specification 59-2.03 B (2) (a) in the third paragraph makes reference to “remove dirt, loose rust, mill scale, or paint not firmly bonded to surfaces under SSPC –SP 2. Feather edges of remaining paint. Do not use pneumatic chipping hammers unless authorized”.

SSPC-SP 2 standard is described for use as “Hand tool cleaning is a method of preparing steel surfaces by the use of non-power hand tools.” And the level of acceptance is as follows: “Hand tool cleaning removes all loose mill scale, loose rust, loose paint, and other loose detrimental foreign matter. It is not intended that adherent mill scale, rust, and paint be removed by this process. Mill scale, rust, and paint are considered adherent if they cannot be removed by lifting with a dull putty knife.”


Question: When the standard specification speaks of removing rust, mill scale, loose paint and then speaks of feather edging existing paint and the SSPC-SP 2 standard listed describes the standard of acceptance as “adherent if they cannot be removed by lifting with a dull putty knife”, does adherent mean the same as feather edge in this case?


Question: Since the existing coating is an average of 60 mils dft and this has been applied in many multiple coats and the pictures of the bridge show much area with loose or dis-bonded paint, what are the criteria for acceptance of “feather edging”?

Inquiry submitted 03/12/2014

Response #1:Submitted for consideration.
Response posted 03/13/2014


Response #2:The response to both questions above is the following:

Feathering edges of remaining paint is required per Standard Spec 59-2.03 B(2)(a). See Section 5.4 of the SSPC-SP2 Standard for details. Please bid per current contract documents.
Response posted 03/18/2014




Inquiry #50: Changing the traffic control from that shown on Chart MRN580E1 to that shown on Chart MRN580E2 2/3rds of the way through the project will have a considerable negative impact on this project by reducing the contractors ability to perform the work in a timely and efficient manner.

Question: To avoid increased project costs and possible delays has the state considered extending the shoulder closure using K rail (ref. Chart MRN580E1) beyond September 1st 2016 to the end of the 720 working days allowed for the project?

Inquiry submitted 03/12/2014

Response #1:Submitted for consideration.
Response posted 03/13/2014


Response #2:No.
Response posted 03/14/2014




Inquiry #51: We note that the pictures provided to bidders show that the underside of the curb assembly is being used as a cable tray (Span 32 picture P1000006JPG shows the configuration).

1. Are there cable trays under the curbs on each side of the bridge?

2. What material are the plates making up the underside of the cable tray made of?

3. Do the plates making up the underside of the cable tray require caulking?

4. Approximately every 8 feet there is an opening in the underside of the cable tray that is 3 to 4 inches wide, what procedure should be followed in regards to these gaps? Will pressure washing the bridge have a negative impact on the impact the cables at these gaps? Is overblast and overspray a concern for cables exposed at these gaps?



Inquiry submitted 03/12/2014

Response #1:Submitted for consideration.
Response posted 03/18/2014


Response #2:1) Yes. Please refer to as-built drawings.

2) As-built drawings show 3/16" steel plates, 10 ft sections each.

3) No. The underside of the steel barriers are NOT to be painted.

4) This portion is not painted per the contract plans. Bid per the current contract documents.
Response posted 03/18/2014




Inquiry #52: Due to the amount of unanswered inquiries and the bid date being within the next few business days, is the bid date going to be postponed on this project?
Inquiry submitted 03/13/2014

Response #1:Submitted fro consideration.
Response posted 03/13/2014


Response #2:No.
Response posted 03/14/2014




Inquiry #53: There are five (5) days remaining to the bid date of March 19th and the owner has not answered all of the questions posted on the last addendum. In particular, questions #26 and #28 regarding the caulking issue have a significant impact to our bid estimate.

Please answer these questions or postpone the bid opening.

Respectfully submitted,

Nick Chirigos

Nick Chirigos


Inquiry submitted 03/14/2014

Response #1:Submitted for consideration.
Response posted 03/14/2014


Response #2:See responses to #26 and #28 above.
Response posted 03/18/2014




Inquiry #54: Does Caltran have a legal liability/responsibility to respond to ALL inquiries posted on this site prior to the bid opening?

Due to recent weather delays effecting the timeliness of courier deliveries, our company will be mailing our bid on Monday.

Please take this into consideration when posting answers to the inquiries.

Inquiry submitted 03/14/2014

Response #1:Submitted for consideration.
Response posted 03/17/2014


Response #2:No. See the disclosure language at the bottom of the Bidder Inquiry webpage (http://www.dot.ca.gov/hq/esc/oe/inquiry/oe_view.php?p=04-3G4844).
Response posted 03/17/2014






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.