Caltrans Office Engineer

Viewing inquiries for 11-2T1824

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Inquiry #1: Regarding payment for Materials on Hand Special Provisions Section 9-1.16C Page 31 Currently dowels, dowel baskets, and tie bars are not included in the items listed for partial payments to the contractor for materials on hand (materials furnished but not incorporated into the work.

Please include partial payments to the contractor for dowel, dowel baskets, and tie bars as materials furnished but not incorporated into the work (Material On Hand) under section 9-1.16C

Inquiry submitted 10/18/2012

Response #1:Submitted for consideration.
Please refer to Addendum #1
Response posted 10/19/2012




Inquiry #2: In the Layout the Concrete Barrier over the DAR bridge is called out as Barrier Type 60. However in the General Bridge Quantities it's called out as Barrier Type 60A. Please verify that the Barrier is Type 60A over the Bridge at 300+00.

Inquiry submitted 10/30/2012

Response #1:Submitted for consideration.
Response posted 10/30/2012


Response #2:Please refer to Addendum #1.
Response posted 10/30/2012




Inquiry #3: On Item # 11 Temp BFM , where can i find the App rates and the slurry mix. I Found the mixes for the erosion control , but not the temp BFM. thank you
Inquiry submitted 11/27/2012

Response #1:Submitted for consideration.
Response posted 11/27/2012


Response #2:Attention is directed to Section 13-5.03E of the Standard Specifications. Please bid per the current contract documents.

Response posted 11/28/2012




Inquiry #4: For Item # 138; What is the depth of the Class 4 base on the flat end of the parking lot 2? Your Class 4 Agg base quantities for parking lot 2 are as if the whole parking lot is at a 5% slope.
Inquiry submitted 11/27/2012

Response #1:Submitted for consideration.
Response posted 11/27/2012


Response #2:Please bid per the current contract documents.
Response posted 12/03/2012




Inquiry #5: To whom it may concern,
Due to the high volume of work bidding next week, we respectfully ask if the bid date could be pushed back to accommodate this high volume.

Inquiry submitted 11/27/2012

Response #1:Submitted for consideration.

Response posted 11/28/2012


Response #2:Please bid per the current contract documents.
Response posted 12/03/2012




Inquiry #6: Item 132- and 133. step 1 hydromulch calls for 1200lbs wood fiber and 10 gal BFM. step 2 hydroseed calls for 600 lbs of wood fiber and 10 gal of BFM. Is this right ? 20 gal per acre . ? Also is the BFM Earth Guard, it does not say what type of BFM . thank you
Inquiry submitted 11/27/2012

Response #1:Submitted for consideration.

Response posted 11/28/2012


Response #2:Please bid per the current contract documents. Refer to sheet ECL-1 for details. Any BFM products that meet the specifications can be used.
Response posted 11/29/2012




Inquiry #7: Chart No. 4 & Chart No. 5 in section 12-4.05C indicate a 4 hour complete freeway closure NB and a 5 hour closure SB respectively, Monday through Friday.

Please consider extending the closure time for the demolition of E. Palomar St. OC.

Inquiry submitted 11/28/2012

Response #1:Submitted for consideration.

Response posted 11/28/2012


Response #2:Please bid per the current contract documents.
Response posted 11/29/2012




Inquiry #8: Special Provision 14-8.02

Time limitations specified under Noise Limitations are not clear as to the days of the week allowed. Can the work as described by Caltrans be accomplished outside these hours as long as it does not exceed the specified sound level?

Inquiry submitted 11/29/2012

Response #1:Submitted for consideration.


Response posted 11/29/2012


Response #2:In reference to the "Noise Restriction Exception" table: Saturday to Saturday in the days column means only on Saturday. Likewise, Sunday to Sunday means only on Sunday.

Work not exceeding 86 dBa Lmax at 50 feet from the jobsite may be performed at any time.

Response posted 12/03/2012




Inquiry #9: Is this a Federal Aid Project and does the "Buy America" requirement apply?
Inquiry submitted 11/29/2012

Response #1:Submitted for consideration.


Response posted 11/29/2012


Response #2:This is not a federal-aid project. If it was, a federal-aid project number would be on the cover of the "Notice to Bidders and Special Provisions" (per section 1-1.07 DEFINITIONS "federal-aid contract" of the standard specifications). Please refer to section 6-2.05 BUY AMERICA of the Standard Specifications for the "Buy America" requirements.
Response posted 11/29/2012




Inquiry #10: Due to our busy bid schedule on 12-06-2012 we are looking for a bid extension so we may continue to bid on this project.
Inquiry submitted 11/30/2012

Response #1:Submitted for consideration.


Response posted 11/30/2012


Response #2:Please bid per the current contract documents.
Response posted 12/03/2012




Inquiry #11: Bid items 174 JOINT SEAL ASSEMBLY (MR 4")
Plan pages 542 and 543 show two different types of assemblies.

Does the contractor still have the option of using the Standard Drawing xs8-010?

Inquiry submitted 12/03/2012

Response #1:Submitted for consideration.
Response posted 12/03/2012


Response #2:Sheet 542 is for Joint Seal Assemblies (Maximum Movement Rating = 4”). Sheet 543 is for Joint Armor – Expansion Details (Maximum Movement Rating = 4”). Refer to added note #1 regarding the location of the joint armor. Please bid per the current contract documents.
Response posted 12/03/2012




Inquiry #12: 1- Ref Plan Sheet 74, Detail for Concrete Barrier Type 60 C MOD.- the variable dimension at top of Barrier ( 12 1/2" + Varies) and fixed dimension at bottom ( 36 1/2")appears incorrect to maintain the 4/25 barrier face slope. Seems like the top needs to stay constant with standard 4 / 25 face slope resulting in a variable bottom width. Please confirm this before the bid.

2- Ref Plan Sheet 74, Detail for Concrete Barrier Type 60 MOD 2 and 60 C MOD, 60C Mod 2,3 and 4- Please provide details for the variable vertical offsets for these barrier types, before bid, so that concrete, reinforcing steel and installation details can be determined responsibly.

Inquiry submitted 12/03/2012

Response #1:Submitted for consideration.
Response posted 12/03/2012


Response #2:1. The detail is correct. The bottom width of 18 1/4" on each side of the barrier centerline is to remain constant. The width on the top of the barrier to the right of the barrier centerline will vary based on the varying height of the barrier and the projected 4:25 slope. Please bid per the current contract documents.

2. The variable vertical dimensions can be calculated from the profiles and the construction details. Please bid per the current contract documents.
Response posted 12/03/2012




Inquiry #13: Ref Various Cross Section Plans and Plan Sheet 94- Confirm that concrete fill below the Rock Blanket, in the median, is variable depth from 11" minimum up to 30"+, and is included in the contract requirement and price for Rock Blanket, Item 62. Also confirm this infill between barrier types is not part of Concrete Barrier Type 60 Series.
Inquiry submitted 12/03/2012

Response #1:Submitted for consideration.
Response posted 12/03/2012


Response #2:Please refer to sections 20-12 ROCK BLANKET and 9 PAYMENT of the Special Provisions and the Standard Specifications. The concrete fill for the rock blanket (11" minimum) is included in item 62 ROCK BLANKET. Anything below the 11" rock blanket thickness is considered earthwork. Refer to the quantity table on sheet 325.
Response posted 12/03/2012




Inquiry #14: Please recheck your calculation for your reply to Question 12, part 1. It appears more likely that the top of barrier, right of centerline will vary from 0 to 7", and the bottom of barrier can only be 18 1/4" at the maximum 36" vertical elevation differential. Without that designation, the right side of constant slope barrier cannot be maintained at 4 / 25.
Inquiry submitted 12/03/2012

Response #1:Submitted for consideration.


Response posted 12/04/2012


Response #2:The CONCRETE BARRIER (TYPE 60C MOD) detail on sheet C-30 uses a constant 18 1/4" dimension from the centerline of the barrier to the RT face of the barrier at the toe of the barrier to maintain a constant shoulder width. Using the 4:25 slope and the variable height, the top dimension from the centerline of the barrier to the face of the barrier will vary as follows:
72" height (36" + 36") = 6 3/4"
36" height (36" + 0") = 12 1/2"

Please bid per the current contract documents.
Response posted 12/04/2012




Inquiry #15: Are ready mix concrete trucks allowedto drive on base in parking lots 1 & 2 for the pervious paving.
Inquiry submitted 12/03/2012

Response #1:Submitted for consideration.


Response posted 12/04/2012


Response #2:Please bid per the current contract documents.


Response posted 12/05/2012




Inquiry #16: In Parking lots 1 and 2 where pervious paving abuts the curb is expansion felt required
Inquiry submitted 12/05/2012

Response #1:Submitted for consideration.
Response posted 12/05/2012


Response #2:Attention is directed to Section 40-8.03D, "Joints," and 40-8.02, "MATERIALS," of the Special Provisions. Please bid per the current contract documents.
Response posted 12/06/2012




Inquiry #17: The contract documents do not hav a detail for the contraction jointsin the pervious paving please provide detail or let us know if expansion joint material is required at construction joints.
Inquiry submitted 12/05/2012

Response #1:Submitted for consideration.
Response posted 12/05/2012


Response #2:Please bid per the current contract documents.
Response posted 12/06/2012






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.