ntb2414taylr00035ad1.pdf

ADDENDUM NO. 1

TO: ALL PLAN HOLDERS

DATE: March 19, 2024

PROJECT: TAYLOR MUNICIPAL AIRPORT

TERMINAL APRON RECONSTRUCTION

TxDOT CSJ NO. 2414TAYLR

TAYLOR, TEXAS

The Specifications and Contract Documents are modified as described below. All bidders shall acknowledge receipt of this and all other addenda on page 5 of 6 of the Bid Form issued with this addendum. This addendum becomes a part of the contract documents. All provisions of the original plans, specifications, and contract documents shall remain in full force and effect, except as modified by this addendum.

1. Pre-Bid Meeting:

A non-mandatory pre-bid meeting was held on March 13, 2024. The pre-bid meeting agenda and sign-in sheet is enclosed.

2. Answers to Bidder Questions:

Will the owner or city of Taylor want to the asphalt and/or base material excavated from this project?

Yes, the contractor shall haul all excavated existing pavement material to the City of Taylor

Public Works yard located at 602 E. Rio Grande Street.

What asphalt binder is going to be used and which SAC aggregate?

Asphalt binder shall be 70-22. SAC B is adequate material for the aggregate.

Does the removal of asphalt concrete include the base?

See Sheet C07, Demolition Note #3.

What are the specifications for the material that is to be put back in P-152-4.2 UNDERCUT/REPLACE

UNSUITABLE SUBGRADE W/SELECT FILL?

See Specification P-152-2.2.b.

For Pay Item T-905-5.1 TOPSOIL (OBTAINED ONSITE OR REMOVED FROM STOCKPILE), if there is not enough topsoil onsite, how will the remaining topsoil needed for the project be paid for?

This project results in a net increase in pavement area, so sufficient topsoil will be available.

ADDENDUM NO. 1, TxDOT CSJ No. 2414TAYLR

March 19, 2024

Where is the 507 CY of undercut to be used on this project?

Undercut is included as a contingency item to address unsuitable subgrade conditions. Use of this pay item requires RPR approval.

How is the flowable fill showed in sheet C15 paid for?

Backfill, bedding, trenching, and all other materials and activities necessary to install pipe shall be considered subsidiary to installation of the pipe.

How is the 441 CY of embankment called out in Sheet C10 paid for?

Embankment shall be considered subsidiary to excavation.

ADDENDUM NO. 1 ISSUED BY:

KSA

Grayson Cox, P.E.

Project Manager

Attachments:

2414TAYLR Pre-Bid Conference Agenda

2414TAYLR Pre-Bid Conference Sign-In Sheets

3-19

Pre-Bid Meeting

Airport: Taylor Municipal Airport

Date: Wednesday, March 13, 2024

Project: Terminal Apron Reconstruction

Organizer: Grayson Cox

KSA Project No.: 101402

Client Project No.: 2414TAYLR

I. Sign-In Sheet

II. Introductions and Roles

A. Stacey Batch, Airport Manager, Taylor Municipal Airport

B. Kolby Bullard, Airport Ops Specialist, Taylor Municipal Airport

C. Robert Johnson, P.E., Project Manager, TxDOT Aviation

D. Grayson Cox, P.E., Project Manager, KSA

E. Abi Fleischmann, E.I.T., Design Engineer, KSA

III. Bidding Procedures

A. See Notice to Bidders and Instructions to Bidders section in Contract Documents for bidding information.

B. All bidders are encouraged to review all contract documents including Mandatory Federal Contract

Provisions, TxDOT General Provisions, Special Provisions, and Specifications.

C. Technical questions/comments should be submitted to Grayson Cox, P.E., (gcox@ksaeng.com, 512.342.6868) by Monday, March 18, 2023, at 5:00 pm. Questions must be in writing and received prior to date mentioned.

D. For other information visit the Aviation website or call Sheri Quinlan at 512.971.5974.

E. Sealed bids for the construction of airport improvements at the Taylor Municipal Airport are due to be delivered to TxDOT Aviation Division, Attn: Sheri Quinlan, 6230 E. Stassney Lane, 2nd Floor, Austin, Texas

78744 on Tuesday, March 26, 2024, at 2:00 pm. At that time, bids will be publicly opened and read aloud.

Any bid received after closing time will be returned unopened.

F. Bid Proposal

1. Bidders must utilize the bid proposal form provided on TxDOT’s website.

2. Must provide pricing for ALL items. The contract award will be based on the lowest qualified bid.

G. Each bid should be furnished with a Bidder Qualifications as stated in the Contract Documents.

H. Bidder shall reference the Aviation Division General Construction Contract Provisions.

1. http://txdot.gov/inside-txdot/division/aviation/general-provisions.html

I. Contract will be awarded within __60__ calendar days from bid opening.

J. Federally funded project

1. DBE Goal is 0%. Questions regarding DBE Goal and Good Faith Efforts should be directed to Sheri

Quinlan at 512.971.5974. DBE Plan MUST be submitted within 5 calendar days after bid opening to

TxDOT Aviation via email to AVNRFQ@txdot.gov.

2. Wage rate requirements will be required as shown in the Contract Documents.

3. Buy American – Steel and Manufactured Products for Construction Contracts (See Special Notice to

Bidders).

March 13, 2024

IV. Scope of Work

A. Base Bid – Existing Apron Reconstruction

1. Remove Portions of Existing Apron Pavement and Construct New Apron Pavement (4 Phases)

2. Mark Apron and Connecting Taxilane/Taxiway Pavement

B. Additive Alternate 1 – Construct 40’ x 40’ Helipad

C. Additive Alternate 2 – Construct Additional Concrete 40’ x 40’ Helipad

V. Site Access / Staging Areas

A. Site Access and Staging Area

1. See Plan Sheet C01 for Staging Area

VI. Safety and Phasing Plan

A. Contractor will be required to be in compliance with FAA Advisory Circular 150/5370-2G, Operational Safety on Airports During Construction.

B. Phase 1

1. Full closure of Taxiway B and partial closure of Taxiway A (see Plan Sheet C02)

2. Demolition and cold milling of connecting taxiway pavement

3. Excavation including stockpile of topsoil

4. Installation of drainage infrastructure

5. Lime treated subgrade

6. Application of crushed aggregate base

7. Application of hot mix asphalt pavement

8. Replace stockpiled topsoil and install sod

9. Clean all paved surfaces to remove FOD

10. Remove (if any) low profile barricades

11. Remove all equipment, materials, and personnel from work area

C. Phase 2

1. Partial closure of terminal apron and displacement of tie-downs (see Plan Sheet C03)

2. Demolition and cold milling of apron pavement

3. Installation of drainage infrastructure

4. Lime treated subgrade

5. Application of crushed aggregate base

6. Application of hot mix asphalt pavement

7. Install tiedowns and perform placement of markings

8. Clean all paved surfaces to remove FOD

9. Remove (if any) low profile barricades

10. Remove all equipment, materials, and personnel from work area

D. Phase 3

1. Partial closure of terminal apron and displacement of tie-downs (see Plan Sheet C04)

2. Demolition and cold milling of apron pavement

3. Lime treated subgrade

4. Application of crushed aggregate base

5. Application of hot mix asphalt pavement

6. Replace stockpiled topsoil and install sod

7. Install tiedowns and perform placement of markings

8. Clean all paved surfaces to remove FOD

9. Remove (if any) low profile barricades

10. Remove all equipment, materials, and personnel from work area

E. Phase 4

1. Partial closure of terminal apron and displacement of tie-downs (see Plan Sheet C05)

2. Demolition and cold milling of apron pavement

3. Lime treated subgrade

4. Application of crushed aggregate base

5. Application of hot mix asphalt pavement

6. Replace stockpiled topsoil and install sod

7. Install tiedowns and perform placement of markings

8. Clean all paved surfaces to remove FOD

9. Remove (if any) low profile barricades

10. Remove all equipment, materials, and personnel from work area

VII. Other Information

A. Contract Time

1. _195_ Calendar days for Base Bid.

2. Liquidated Damages are $1,000 per calendar day

B. Materials Acceptance by Owner / Materials Quality Control by Contractor

C. Protection of any existing utilities in the project area is the responsibility of the Contractor. Engineer has endeavored to show all known utilities within the Contract documents, but this shall not relieve the

Contractor from full responsibility in anticipating all underground obstruction, whether or not shown on the plans; Contractor should call for utility locates and verify locations of all utilities prior to starting construction.

D. SW3P – Contractor Responsibility

E. Coordination with other construction on the Airport

F. Engineer’s estimate is $2,818,932

Notes: