Amendment A002.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT ID CODE

N/A

PAGE

2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE NO. 5. PROJECT NO. (If applicable)

A002 12/13/2024 N/A AK PFH 58(1), Neck Lake Road Reconstruction: NPOWI Hwy. to Marine Access Facility Jct.

6. ISSUED BY CODE N/A 7. ADMINISTERED BY (If other than Item 6) CODE N/A

Department of Transportation Federal Highway Administration 610 East Fifth Street Vancouver WA 98661-3801

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and Zip Code) 9A. AMENDMENT OF SOLICITATION NO.

X

69056725B000001

9B. DATED (SEE ITEM 11)

11/18/2024

10A. MODIFICATION OF CONTRACT/ORDER NO.

N/A

10B. DATED (SEE ITEM 13)

CODE: N/A FACILITY CODE: N/A

N/A

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

| X | The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

(__ ) is extended, ( x ) is not extended.

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

N/A

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS,

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A THIS CHANGE ORDER IS ISSUED PURSUANT TO (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN

ITEM 10A.

N/A

B THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (Such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D OTHER (Specify type of modification and authority)

N/A

E. IMPORTANT: Contractor n/a is not, n/a is required to sign this document and return n/a copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

AK PFH 58(1), Neck Lake Road Reconstruction: NPOWI Hwy to Marine Access Facility Jct.

See page 2

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15a. NAME AND TITLE OF SIGNER (Type or print) 15a. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

N/A

15B. CONTRACTOR/OFFEROR 15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 16C. DATE SIGNED

BY_________________________________________ BY N/A___________________________ N/A (Signature of person authorized to sign) (Signature of Contracting Officer)

NSN 7540-01-152-8070

PREVIOUS EDITION NOT USABLE

30-105 STANDARD FORM 30 (REV. 10-83)

Prescribed by GSA

FAR (48 CFR) 53.243

Amendment No. A002, dated 12-13-2024 Solicitation No. 69056725B000001

Project Number: AK PFH 58(1)

Project Name: Neck Lake Road Reconstruction: NPOWI Hwy. to Marine Access Facility Jct.

REVISIONS ARE AS FOLLOWS:

SPECIAL CONTRACT REQUIREMENTS

Page F-4, Subsection 204.01, Description Adds: controlled blasting.

Page F-5, Subsection 204.10A(b) Soft Ground Embankment Construction Type 1 and 2.

Deletes: provide two-way traffic during all non-work periods.

Page F-6 Subsection 204.10A(C) Soft Ground Embankment Construction Type 3.

Deletes: provide two-way traffic during all non-work periods.

Page F-10: Section 205 Rock Blasting: adds Subsection 205.04A Blasting Consultant.

Page F-11: Subsection 205.05 Blasting Plan. Add the following to paragraph (b), deletes bullet (12) and deletes subsection 205.06 Pre-Blasting Survey and Blast Monitoring and

Control.

Page F-11a: Subsection 205.09 Reporting (a) post-blast: adds (9).

PLANS

Plan sheet #C-5 Revises, Rock Cut and Rockfall Ditch Detail

ENCLOSURES

Pages:

F-4 through F-6

F-10 through F-11a

Plan Sheets:

C.5

F-4 DIVISION 200

Special Contract Requirements Project: AK PFH 58(1), Neck Lake Road Reconstruction: NPOWI Hwy. to Marine Access Facility Jct.

Section 204. — EXCAVATION AND EMBANKMENT

11/12/20– FP-14

Description

204.01. Add the following:

This work also consists of construction and monitoring of staged or non-staged embankments in identified soft ground areas, and constructing, maintaining, and removing temporary surcharge embankments.

This work also consists of loading, hauling, and disposing of potentially acid-generating (PAG) rock identified under Subsection 623.02A.

This work also consists of constructing permeable backfill (limestone) embankments and lenses at the Government-cleared rock disposal site.

This work also consists of controlled blasting.

204.02 Definitions.

(c) Conserved topsoil. Delete the text of this subsection and substitute the following:

Excavated material conserved from the roadway excavation and embankment foundation areas including forest duff and organic material that is suitable for growth of grass, cover crops, or native vegetation.

Material

204.03. Add the following to the materials list:

Geotextile 714.01 Permeable backfill (limestone) 703.04 Rock Borrow 704.07A

Construction Requirements

204.05 Conserved Topsoil. Add the following:

Do not conserve muskeg for use as topsoil. Do not remove topsoil in soft ground embankment areas. Do not transport conserved topsoil from one wetland to a separate wetland.

Revised by Amendment A002

F-5 DIVISION 200

Project: AK PFH 58(1), Neck Lake Road Reconstruction: NPOWI Hwy. to Marine Access Facility Jct.

204.10 Embankment Construction. Add the following to paragraph (b):

Construct the top 12 inches (300 millimeters) of the embankment with 6-inch (150-millimeter) minus material conserved from the roadway cuts.

204.10A Soft Ground Embankment Construction. (Added Subsection):

Construct soft ground embankment and surcharges as shown on the plans according to this Subsection.

(a) General. Clear the area of the soft ground embankment according to Section 201. Place earthwork geotextile as shown in the plans according to Subsection 207.04 in areas without standing water. Subexcavate according to Subsection 204.07, in areas noted on the plans or as approved.

Remove existing culverts prior to soft ground embankment operations. Submit a temporary culvert installation and monitoring plan or a temporary diversion plan according to Subsection

157.10 to the CO 7 days before beginning removal. Ensure temporary culverts or diversions meet or exceed existing conveyance area unless otherwise approved.

(b) Soft Ground Embankment Construction, Types 1 and 2. Install settlement plate assemblies as shown on the plans according to Subsection 621.03A(a) and piezometers as shown on the plans according to Subsection 271.03 prior to placing the first compacted embankment stage. Review each planned location with the CO before installation.

In areas of standing water, do not install settlement plate assemblies until the embankment material has reached an elevation of at least 12 inches above the static water level.

Place rock borrow onto the prepared foundation. Do not compact the first 4 feet of embankment. Place and compact subsequent lifts according to Subsection 204.10.

Monitor each embankment stage via settlement plate assemblies and piezometers according to Subsections 621.03A(b) and 271.04. Do not place additional embankment material until approved by the CO.

Construct remaining embankment in stages up to 4 feet thick, up to the proposed finished grade. Do not exceed the fill slopes noted in the plans. Install stabilization geogrid according to Subsection 207.04 a minimum of 2 feet below proposed subgrade.

Continuously monitor temporary culverts or diversions and adjust or reinstall at the beginning of each stage as directed by the CO.

Provide two-way traffic during all non-work periods. Construct ramps to the vertical profile according to the requirements in the plans or as approved. Provide barriers or vertical panels according to Section 635 to protect settling slopes during traffic.

F-6 DIVISION 200

Project: AK PFH 58(1), Neck Lake Road Reconstruction: NPOWI Hwy. to Marine Access Facility Jct.

Surcharge the proposed subgrade with an additional 3 feet of suitable material. Place roadway aggregate on the surcharge according to Section 302 to allow for extended periods of public traffic. Provide barriers or vertical panels to protect settling slopes during periods of public traffic.

Monitor and repair the embankment within the surcharge area during work and non-work periods as directed by the CO to provide for public safety and the minimum requirements of two-way traffic specified in the plans.

Remove surcharge embankments when either:

(1) Settlement data obtained from the settlement plate assembly and piezometers indicate primary consolidation is complete with written concurrence from the CO.

(2) 120 days after placement of surcharge embankment.

Incorporate the surcharge embankment material in the roadway embankments once the surcharge has been removed.

(c) Soft Ground Embankment Construction, Type 3. Install a minimum of one settlement plate assembly according to Subsection 621.03A(a) and at least one piezometer according to Subsection 271.03 prior to placing the first compacted embankment stage. Review each planned location with the CO before installation.

In areas of standing water, do not install settlement plate assemblies until the embankment material has reached an elevation of 12 inches above the static water level.

Place rock borrow onto the prepared foundation. Do not compact the first 4 feet of embankment. Place and compact subsequent lifts according to Subsection 204.10.

Monitor the embankment via settlement plate assemblies and piezometers according to Subsections 621.03A(b) and 271.04. Do not place additional embankment material until approved by the CO.

Construct the remaining embankment up to the proposed finished grade. Do not exceed the fill slopes noted in the plans. Install stabilization geogrid according to Subsection 207.04 a minimum of 2 feet below proposed subgrade.

Continuously monitor temporary culverts and adjust or reinstall at the beginning of each stage as directed by the CO.

Provide two-way traffic during all non-work periods. Construct ramps to the vertical profile requirements in the plans or as approved. Provide barriers or vertical panels according to Section 635 to protect settling slopes during traffic.

Surcharge the proposed subgrade with an additional 3 feet of suitable material. Place roadway aggregate on the surcharge according to Section 302 to allow for extended periods of public

F-10 DIVISION 200

Project: AK PFH 58(1), Neck Lake Road Reconstruction: NPOWI Hwy. to Marine Access Facility Jct.

Section 205. — ROCK BLASTING

Construction Requirements

205.04A Blasting Consultant. (Added Subsection.)

Provide a blasting consultant with at least 10 years experience in the field of rock blasting as a designer of blasts with controlled blasting techniques. Use a blasting consultant that is not an employee of the Contractor, an explosives manufacturer, or explosives distributor.

(a) Use a blast consultant to:

(1) Assist in the blast design.

(2) Attend the preconstruction conference.

(3) Make on-site inspections of the blast site before the submittal of each blast plan.

(4) Make on-site inspections during drilling, loading, and blasting of test sections.

(5) Make on-site inspections during drilling, loading, and blasting of production sections.

(6) Approve all blasting plans and modifications. Include with each blast plan submitted to the CO written evidence that the blasting consultant has reviewed and approved the blasting plan.

(b) Provide the following to the CO before the preconstruction conference:

(1) A resume of the proposed blasting consultant. Include educational background related to blasting and a detailed resume of experience in the blasting field.

(2) A list of at least five highway rock projects that demonstrate successfully completed work on which the blasting consultant has worked in the capacity of a consultant in blast design.

List a description of the projects, details of the blast plan, and modifications made during the project. List names and telephone numbers of project owners with sufficient knowledge of the project to verify the submitted information.

(3) A cost breakdown of the individual items included in the lump sum blasting consultant item for use in making progress payments.

Based on the documentation provided, the CO will notify the Contractor of the acceptability of the proposed blasting consultant under the terms of the contract within 14 days.

F-11 DIVISION 200

Project: AK PFH 58(1), Neck Lake Road Reconstruction: NPOWI Hwy. to Marine Access Facility Jct.

205.05 Blasting Plans. Amend as follows:

Add the following to the first paragraph:

All blasting plans and modifications to the plans must be signed by the CO. Do not begin drilling the blast pattern or deliver explosives to the project until the general blasting plan and site-specific blast plan are accepted.

Add the following to paragraph (a):

Allow 7 days for review and approval of the general blasting plan. Submit revisions and updates to the CO within 48 hours of any change in the general blasting plan.

Add the following to paragraph (b):

(11) Any rockfall containment designs and procedures; and

(12) Include an attenuation study for affected structures and indicate that the peak particle velocity versus peak frequency will not damage each structure when structures are within an area of ground vibration and/or air-blast overpressure concern.

205.06 Pre-blast Condition Survey and Blast Monitoring and Control. Amend as follows:

Delete the text of paragraph (c) and substitute the following:

(c) Control ground vibrations and air-blast over-pressures with properly designed delay sequences and maximum allowable charge weights per delay. Verify allowable charge weights per delay by conducting representative trial blasts and measuring ground vibrations and air-blast over-pressure levels. The attenuation study will enable successful prediction of the peak particle velocity in any component (longitudinal, transverse, or vertical) anywhere on the surface of the structure(s). Conduct test blasts with blast plan modifications that limit ground vibrations and air-blast over-pressures to levels that will not cause damage to nearby buildings, structures, utilities and/or natural features as determined by the Vibration Specialist. Submit a copy of the attenuation study results and predicted peak particle velocity versus peak frequency for each structure.

Add the following:

Submit a copy of the interpreted seismograph and air-blast records to the CO with a certifying signature by the Vibration Specialist. If actual peak particle velocity versus peak frequency measurements exceed those predicted for a structure, the site-specific blast plan will need to be

F-11a

Project: AK PFH 58(1), Neck Lake Road Reconstruction: NPOWI Hwy. to Marine Access Facility Jct.

adjusted for the actual structural response to the blasting. The plan may include adjustments to pattern, loading, timing, flyrock measures, etc.

Record each blast using digital video equipment from two locations that clearly show the entire proposed blast site, preferably from locations on both sides of the blast.

205.09 Reporting: Add the following to (a):

(9) Record each blast using digital video equipment from two locations that clearly show the entire proposed blast site, preferably from locations on both sides of the blast.