QnA_11.14.17.pdf

Questions and Answers during Advertisement for

AZ FTNP GRCA 11(4) DESERT VIEW DRIVE

November 7, 2017

Questions Answers

1 625.03 General.

Apply topsoil, seed and mulch (containing tackifier and fertilizer) to finished slopes as project areas are complete, in coordination with Park Vegetation staff.

Question: what is the fertilizer and application rate?

Fertilizer is not required.

625.03 General

Conserved topsoil placed at 3” to 4” depth in areas identified on the plans for conserving topsoil, seeding and hydromulching (Schedule A). Place conserved topsoil to the extent it is available.

625.08 Seeding.

See FP-14 625.07 Seeding (b) Hydraulic Method and 625.08 SCR’s

Application rate for Hydroseeding is up to 10 pounds per acre, seed is provided by Park. Include 400 lbs per acre for tracer material.

625.08 Mulching.

The application rate is 2000 lbs per acre.

2 We have the following question for the DTFH6817B00017 AZ FTNP

GRCA 11(4), Desert View Drive project, is railroad insurance required for work near the Grand Canyon Railway, if so what are the insurance requirements?

No railway insurance is required since the items of work for this project don’t disturb or work within the railway ROW zone.

November 14, 2017

3 After reviewing the FP14 specifications 601.03 representing mix designs for minor concrete structures, FNF has concern that the allowable approval time of the mix design composition materials may not be completed by the necessary time frame on when we expect to pour concrete in order to meet the schedule constraints for Options X and the reinforced concrete pavement in Schedule A. Would the

FHWA consider accepting local agencies as well as previously approved ADOT mix designs?

A local agency design or ADOT design is acceptable provided these designs meet the mix requirements in Section 601 and the aggregate requirements of Section 703.

4 Section 401 specifies the binder to be PG 76-22NV. Historically, PG

64-28 or PG 58-28 has been utilized at the South Rim.

Will the Government change the binder to either PG 64-28 or PG 58-

28?

No. PG76-22NV is the specified binder grade.

5 Is a Material Transfer Vehicle (MTV) required? If so, will the

Government add a Bid Item? If so, is a MTV required for the test

An MTV is required. Under the FP-14 there is no longer a separate bid item for an MTV.

strip(s)?

6 Can the salvaged stone curb (Item 20302-0600) be utilized in the construction of the new stone curb (Item 60901-1100 and/or 60901-

5000).

Yes, provided it meets Subsection 609.04.

7 Would the Government consider postponing the bid opening 1 week, due to the close proximity of Thanksgiving? We would like the spend the time with our families, just like you are able to.

There will be no extension to the bid opening date at this time.