DTFH6817B00008_8-18-17_Questions_and_Answers.pdf

Questions & Answers for CA FLAP 460507(1), Buchanan Road

8/18/2017

Q1: We are interested in supplying the MSE wall on the referenced project; however, the attached plan sheet G8 notes 18” max vertical spacing between reinforcements. This is not typical since we have not manufactured 18” lift wire walls since the mid-80s. We use 24” lifts with our compressible facing feature (see attached standard drawings) and have been supplying this type of MSE design for FHWA projects for decades. Will CFL accept 24” lifts for the MSE wall on the referenced project?

A: See amended sheets (A001) G8 and G9.

Q2: Plan sheet S30 and S31 show TOW elevation of 2266.99 at STA 4+52.17 and also STA 4+73.14. Please verify TOW elevation is correct.

A: See amended sheet (A001) S31.

Q3: Please confirm retaining wall panel lengths shown in plan sheet S30 (between STA 4+29.71 and STA 3+89.74).

A: Panel length is as shown in the plans, no change.

Q4: Clarify retaining wall height between STA 5+40.57 and STA 5+29.57 is 10 as shown in plan sheet S31 or 8 as shown in plan sheet S32.

A: See amended sheet (A001) S32.

Q5: The provided bridge Cross sections show retaining wall from STA 3+62.44 to 6+00.00 while plan sheets S30 to S32 show retaining wall from STA 3+89.74 to STA 6+00.00. Please clarify STA for begin and end of retaining wall.

A: See amended sheets (A001) D1, and Y1-Y5.

Q6: SPECS Section 552.02 added Section 725.29 for Reinforcing fibers. Clarify which concrete structures need to contain reinforcing fiber as it is not clear if fiber is required or not.

A: All structural concrete will require the reinforcing fibers as indicated in the contract documents.

Q7: Do the rebar bid item quantities (bid items 55401-1000 and 55401-2000) include the rebar in the drilled shafts and rock sockets?

A: No, as shown on S2 (note 5) and also on S38 (note 1), the reinforcing steel for the drilled shafts and rock sockets is included in the drilled shaft pay items

Q8: Is our project CPM schedule required to be turned in with the bid?

A: No, refer to contract requirements under section 155 for submittal timeframes.

Q9: Is the FHWA aware of any other disposal sites in the area taking excess dirt and spoil from this project?

A: Securing a disposal site is the responsibility of the contractor

Q10: For bid Item 62201-1000, Materials Transfer Vehicle, the bid quantity is 1 LPSM. Shouldn’t the bid quantity be 40 hours like the other equipment bid items? Also, there is no description in the specifications for the material transfer vehicle. What type of truck is required?

A: No, this is a lumpsum pay item. Refer to section 401.05(b) for contract requirements on the materials transfer vehicle.

Q10: I have a question on the 40% in section C-16 52.236-1 Performance or Work by Contractor. Is there going to be a problem on getting this reduce to 20%? We will be looking for sub pricing on the different bid items. If we receive a quote from a company that has experience and can perform the work cheaper than us, we would like to be able to use their quote. Please know we are planning to self perform some of the work on this contract. I would hate to not be able to use the lowest price to win this contract if we have to keep the 40%.

A: This requirement will not be changed.