Caltrans Office Engineer

Viewing inquiries for 08-0G8404

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Inquiry #1: Is it your intent to have one contractor build two rest stops 300 miles apart?
Inquiry submitted 10/23/2013

Response #1:Submitted for consideration.
Response posted 10/24/2013


Response #2:The only work in Sacramento is electrical programming work related to the SCADA (Supervisory Control & Data Acquisition System) performed by System Integrator, as specified under "12-16.14 SUPERVISORY CONTROL AND DATA ACQUISITION SYSTEM" (on page 376 of the Special provision) and as shown on plan sheets 279-293

Response posted 11/05/2013




Inquiry #2: Will the two projects bid under one bid package, or separately? If bid separately, can we expect to have a mandatory prebid meeting for Sacramento County Roadside Rest Area?
Inquiry submitted 10/23/2013

Response #1:Submitted for consideration.
Response posted 10/24/2013


Response #2:This is a single bid for work in San Bernardino County and Sacramento.
Response posted 11/06/2013




Inquiry #3: Does the general contractor have to perform 50% of the work?
Inquiry submitted 10/30/2013

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


Response #2:Contractor is to perform at least 30% of the building work.
Response posted 11/12/2013




Inquiry #4: On drawing 320 (SS-1) youe note a MH removal and sy it is typical. Do we remove all of the manholes including the one on the north side of I-15?
Inquiry submitted 11/01/2013

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


Response #2:As mentioned in the note 7 on sheet SS-1, Please remove manholes and COTG associated with the Northbound comfort station sewer pipe. DO NOT remove the manholes and COTG’s associated with the Southbound comfort station sewer pipe (even the ones located on the northbound side)
Response posted 11/08/2013




Inquiry #5: Do we remove all of the sewer cleanouts including the median of I-15 and the north side?
Inquiry submitted 11/01/2013

Response #1:Submitted for consideration
Response posted 11/06/2013


Response #2:Please refer to the response given for bidder inquiry 4.
Response posted 11/08/2013




Inquiry #6: Please provide finish grade for the 4 manholes that are listed on drawing SS-2 and the finish grade for the lift station.
Inquiry submitted 11/01/2013

Response #1:Submitted for consideration.
Response posted 11/06/2013


Response #2:Please refer to the contour grading plan to get manhole finish grade elevations. Please refer to sheet SS-5 for the lift station finish grade elevation (1730.50’).
Response posted 11/08/2013




Inquiry #7: Please clarify: On page 139 of the specifications, "Part 2 Products for Backfill Materials" you list Sand, Pea Gravel & Crushed Stone. Yet on page 141 under Structure Backfilling, "Backfilling Pipes & Conduits" you say we can use "Fine Earth Particles". Which is it?
Inquiry submitted 11/04/2013

Response #1:Submitted for consideration.
Response posted 11/06/2013




Inquiry #8: Is this bid for new Northbound Comfort Station only, or does it include remodel of existing Northbound Comfort Station as well? Reference sheet no. 76, Scope of Work, items 1 and 2.
Inquiry submitted 11/04/2013

Response #1:Submitted for consideration.
Response posted 11/06/2013


Response #2:The scope of work is demolish existing NB comfort station and existing NB water treatment bldg and construct new NB comfort station and NB water treatment bldg.

There is no remodeling of the existing NB comfort station or any work on the SB facility.

Please refer to Special Provisions in section 12-1.01 (pages 115 and 116) for scope of work.

Response posted 11/08/2013




Inquiry #9: On drawings C-2 & C-4 you show a plan view of what looks like sidewalks. There is no indication on these 2 drawings or on any other drawings of the layout of the sidewalk, handicap ramps, construction joints, etc. Please provide.
Inquiry submitted 11/05/2013

Response #1:Submitted for consideration.
Response posted 11/06/2013


Response #2:Layout Points for sidewalk shown on C-2 through C-4. Location of Accessible Parking shown on PD-2. Ramp details shown on RSP A88A and AO-3.1. Expansion and Control Joints shown on LD-1 through LD-3.


Response posted 11/08/2013




Inquiry #10: Reference to drawing DD-2, the storm drain storage basin. this drawing is not to scale as noted. Why don't you dimension the width of the flat bottom? (We are assuming it is 12' because the spillway is 12' wide).
Inquiry submitted 11/06/2013

Response #1:Submitted for consideration.
Response posted 11/06/2013


Response #2:The width of the flat bottom is set at 10’, while the width of the spillway lip is 12’
Response posted 11/12/2013




Inquiry #11: Under what bid item is the excavation for this basin paid?
Inquiry submitted 11/06/2013

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


Response #2:That bid item was included under “Roadway Excavation” # 190101.
Please bid as per current contract documents.


Response posted 11/12/2013




Inquiry #12: Under what itgem is the concrete spillway & riprap paid? It does not appear in the drainage summary on drawing DQ-1
Inquiry submitted 11/06/2013

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


Response #2:The riprap is under item 40.

The concrete spillway should be included in the minor concrete (minor structure) item 29

Response posted 11/20/2013




Inquiry #13: Regarding the below grade water storage tanks, our supplier has the following comments:

1. For a 30" manway, a minimum containment sump (riser) should be 48" to allow access to open the manway cover.

2. For a 22" manway, a minimum containment sump (riser) should be 42" to allow access to open the manway cover.

3. The treatment train for all potable water goes through both tanks. Both the raw storage tank and the portable water storage tank should include the NFS-approved coating.

Inquiry submitted 11/06/2013

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


Response #2:For a 30" manway, containment sump diameter of up to 48" is acceptable.

For a 22" manway, containment sump diameter of up to 42" is acceptable.

Both the Raw Water Storage Tank and Potable Water Storage Tank should have the NSF]approved coating.


Response posted 11/18/2013




Inquiry #14: The current design does not allow access to open the 30” Manway cover. For a 30” Manway can we use a 48” Dia. Containment Sump (Riser) to allow access to open the manway cover?

Inquiry submitted 11/07/2013

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


Response #2:For a 30" manway, containment sump diameter of up to 48" is acceptable.

Response posted 11/18/2013




Inquiry #15: For a 22” manway can we use a 42” Dia. Containment Sump (Riser) to allow access to open the manway cover?

Inquiry submitted 11/07/2013

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


Response #2:For a 22" manway, containment sump diameter of up to 42" is acceptable.


Response posted 11/18/2013




Inquiry #16: The treatment train for all potable water goes through both tanks. Should we include the NSF-approved coating for both the Raw Storage tank and the Potable Water Storage tank?
Inquiry submitted 11/07/2013

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


Response #2:Both the Raw Water Storage Tank and Potable Water Storage Tank should have the NSF]approved coating.


Response posted 11/18/2013




Inquiry #17: There is a discrepancy in the Details for the Parapet Walls. What is the correct height of the CMU parapet walls surrounding the restroom portion of Comfort Station A and Comfort Station B?
Inquiry submitted 11/07/2013

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


Response #2:Comfort Station A and Comfort Station B parapet walls shall be 13'-4" high as indicated on plan sheets 92, 95, 96, 105, 106 and 107.


Response posted 11/13/2013




Inquiry #18: Will you be posting the attendee list for the mandatory pre-bid meeting?
Inquiry submitted 11/08/2013

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


Response #2:The attendees' List is available upon request. If interested, please call (909)829-3331 to arrange for obtaining a copy.
Response posted 11/12/2013




Inquiry #19: Does the AB in a rectangular box on the electrical drawings (EE0-02) mean abandoned in place?
Inquiry submitted 11/11/2013

Response #1:REP ES-1A, the "AB" means to leave the pull box in place and to remove conductors when applied to the conduit.
Please refer to the Standard Plans, May 2006, for plan sheet "RSP ES-1A" listed under Standards Plans list on contract plans sheet number 217 for all the Standard Notes.

Response posted 11/13/2013




Inquiry #20: Is the south bound side electrical to be demolished as part of this contract as shown on EE0-02? If not, please clarify the cut off point.
Inquiry submitted 11/11/2013

Response #1:Submitted for consideration.
Response posted 11/13/2013


Response #2:No demolition of southbound utilities are part of the contract plans. Refer to Note 16 on contract plan sheet No. 220 which clearly identifies the cutoff point for the electrical utilities.


Response posted 11/15/2013




Inquiry #21: Are we to disconnect and remove the conductors from the abandoned raceways?
Inquiry submitted 11/11/2013

Response #1:Submitted for consideration.
Response posted 11/13/2013


Response #2:Please see the response to bidder inquiry #19.

Response posted 11/15/2013




Inquiry #22: Regarding the below grade water storage tanks our suppliers have the following comments:

On drawing W-7, you state that the "Deadman" is to be approved by the tank manufacturer. The tank manufacturer has no knowledge of the ground conditions, soils, water content. This design should come from Caltrans.

Inquiry submitted 11/12/2013

Response #1:Submitted for consideration.
Response posted 11/13/2013


Response #2:Caltrans does not design concrete deadmen as it is an accessory sold by the fiberglass tank manufacturer. In addition, deadmen must be engineered and designed to be used with their tanks. Fiberglass tank manufacturers such as CSI and Xerxes offers deadmen as part of their tank anchoring systems.

Response posted 11/18/2013




Inquiry #23: Are Archaeological and Paleontological Services going to be required for this project and if so will it be contracted directly through Cal Trans or included in the bidding process through the primes?
Inquiry submitted 11/13/2013

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


Response #2:“Archaeological services are required (pgs. 68, 92 of 291, 93 of 291) and also Paleontological services are required (pg. 94 of 291). This should be included with the bidding process. The contractor that provides these services will do so with oversight from our Caltrans Cultural unit.”




Response posted 11/20/2013




Inquiry #24: The sign on drawing LD-13, what is the material for the sign, aluminum, steel, stainless steel, copper?
Inquiry submitted 11/14/2013

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


Response #2:The material for Metal Silhouette Sign, shown on LD-13 & LD-14, is described in Special Provisions (Red Book) 10-1.13 Metal Silhouette Sign.




Response posted 11/20/2013




Inquiry #25: There are no details on the construction of the sidewalks except the slab work in the structural drawings. What is the thickness of the sidewalk? Does it contain rebar or wire mesh? If so, what size and spacing? What is required for the "expansion joints"?
Inquiry submitted 11/14/2013

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


Response #2:Under Plan X-1 & X-2 some detail is indicated that does not reveal any rebar. The thickness is indicated as 0.33'. No detail is indicated in the standard plans.


Response posted 11/20/2013




Inquiry #26: On drawing LD-2 & LD-3 (sidewalk plan), you show the sidewalk going straight through the Picnic Shelters & Interpretive Center but the structural drawings show the floor of those structures as independent of the sidewalk. Under what bid item is the concrete for the slab of these structures paid? Bid item 42 or 67?
Inquiry submitted 11/14/2013

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


Response #2:Bid item 42 - Minor concrete covers sidewalks and curbs Bid item 67 - covers building concrete slab and everything building related - walls, floors, ceilings, etc.


Response posted 11/20/2013




Inquiry #27: Regarding inquiry #3, please clarify if the general contractor is to perform 30% of the actual building scope, or if the 30% is a requirement of the total project scope.
Inquiry submitted 11/18/2013

Response #1:Submitted for consideration.
Response posted 11/18/2013


Response #2:Except for a building-construction non-federal-aid contract, perform work equaling at least 30 percent of the value of the original total bid with your employees and with equipment owned or rented by you, with or without operators.


Response posted 11/20/2013




Inquiry #28: Please advise if the general contractor may use the existing well during the construction of this project.
Inquiry submitted 11/18/2013

Response #1:Submitted for consideration.
Response posted 11/18/2013


Response #2:No, this well is to be abandoned as part of the work and a new one drilled. They can do as an order of work and schedule it so they can use it for construction purposes.
Response posted 11/20/2013






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.