Amendment A002 Lake Nighthorse.pdf

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 or (c) By separate letter or electronic communication 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 letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

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

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER

7. ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended. is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

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

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, 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)

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

2. AMENDMENT/MODIFICATION NUMBER

A002

FEDERAL HIGHWAY ADMINISTRATION

CENTRAL FEDERAL LANDS HIGHWAY DIVISION

12300 WEST DAKOTA AVENUE, SUITE 360

LAKEWOOD, COLORADO 80228

ATTENTION: DENISE MARTINEZ

9A. AMENDMENT OF SOLICITATION NUMBER

6982AF25B000016

5. PROJECT NUMBER (If applicable)

CO FLAP LPL 10(1)

10/29/2025

9B. DATED (SEE ITEM 11)

10/02/2025

0*

*See Item 14 x

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

Provision & Clauses:

Remove and replace pages B-7, B-9, C-14 and delete C-21 SCR's:

Remove and replace pages E-1, E-3 & 4, E-8, E-16, E-18 & 19, E-22, E-60 *FAILURE TO ACKNOWLEDGE THIS AMENDMENT IN BLOCK 19 OF THE SF 1442 BY THE DESIGNATED DATE AND HOUR SPECIFIED IN THE SOLICITATION MAY RESULT IN REJECTION OF YOUR BID (REFER TO ITEM 11.)

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.

B-7

Solicitation Provisions

52.203-11 Certification and Disclosure Regarding Payments to Influence Certain Federal Transactions. (SEP 2024)

52.203-18 Prohibition on Contracting with Entities that Require Certain Internal Confidentiality Agreements-Representation. (JAN 2017)

52.204-5 Women-Owned Business (Other Than Small Business). (OCT 2014)(DEVIATION

NOV 2025)

52.204-7 System for Award Management. (NOV 2024)(DEVIATION NOV 2025)

52.204-90 Offeror Identification (DEVIATION NOV 2025)

52.209-5 Certification Regarding Responsibility Matters. (AUG 2020)

52.209-7 Information Regarding Responsibility Matters (OCT 2018)

52.209-11 Representation by Corporations Regarding Delinquent Tax Liability or a Felony Conviction under any Federal Law (FEB 2016)

52.209-13 Violation of Arms Control Treaties or Agreements – Certification (NOV 2021)

52.214-3 Amendments to Invitations for Bids. (DEC 2016)(DEVIATION OCT 2025)

52.214-4 False Statements in Bids. (APR 1984)(DEVIATION OCT 2025)

52.214-5 Submission of Bids. (DEC 2016)(DEVIATION OCT 2025)

52.214-6 Explanation to Prospective Bidders. (APR 1984)

52.214-7 Late Submissions, Modifications, and Withdrawals of Bids. (NOV

1999)(DEVIATION OCT 2025)

52.214-18 Preparation of Bids - Construction. (APR 1984)

52.214-19 Contract Award - Sealed Bidding - Construction. (AUG 1996)

52.214-34 Submission of Offers in the English Language. (APR 1991)

52.214-35 Submission of Offers in U.S. Currency. (APR 1991)

52.216-1 Type of Contract. (APR 1984)

The Government contemplates award of a FIRM FIXED PRICE contract resulting from this solicitation.

Amendment A002 10.29.2025

B-9

(c) The amount of the bid guarantee shall be twenty (20%) percent of the bid price or $3,000,000.00, whichever is less.

(d) If the successful bidder, upon acceptance of its bid by the Government within the period specified for acceptance, fails to execute all contractual documents or furnish executed bond(s) within 10 days after receipt of the forms by the bidder, the Contracting Officer may terminate the contract for default.

(e) In the event the contract is terminated for default, the bidder is liable for any cost of acquiring the work that exceeds the amount of its bid, and the bid guarantee is available to offset the difference.

52.233-2 Service of Protest. (SEP 2006)(DEVIATION SEP 2025)

(a) Protests, as defined in section 33.101 of the Federal Acquisition Regulation, that are filed directly with an agency, and copies of any protests that are filed with the Government Accountability Office (GAO), shall be served on the Contracting Officer (addressed as follows) by obtaining written and dated acknowledgment of receipt from:

Mr. Ryan Phillips Acquisitions Branch Chief Federal Highway Administration 12300 West Dakota Avenue, Suite 360 Lakewood, Colorado 80228

(b) The copy of any protest shall be received in the office designated above within one day of filing a protest with the GAO.

(End of provision)

52.240-90 Security Prohibitions and Exclusions Representations and Certifications.

(DEVIATION SEP 2025)

52.252-1 Solicitation Provisions Incorporated by Reference. (FEB 1998)

This solicitation incorporates one or more solicitation provisions by reference, with the same force and effect as if they were given in full text. Upon request, the Contracting Officer will make their full text available. The offeror is cautioned that the listed provisions may include blocks that must be completed by the offeror and submitted with its quotation or offer. In lieu of submitting the full text of those provisions, the offeror may identify the provision by paragraph identifier and provide the appropriate information with its quotation or offer. Also, the full text of a solicitation provision may be accessed electronically at this/these address(es):

http://www.acquisition.gov/far

(End of provision)

C-14

52.232-27 Prompt Payment For Construction Contracts. (JAN 2017)

52.232-33 Payment by Electronic Funds Transfer – System for Award Management

(OCT 2018)

52.232-39 Unenforceability of Unauthorized Obligations (JUN 2013)

52.232-40 Providing Accelerated Payments to Small Business Subcontractors (MAR 2023)

52.233-1 Disputes. (MAY 2014)(DEVIATION SEP 2025) - Alternate I (DEC

1991)(DEVIATION SEP 2025)

52.233-3 Protest after Award. (AUG 1996)(DEVIATION SEP 2025)

52.233-4 Applicable Law for Breach of Contract Claim. (OCT 2004)(DEVIATION SEP 2025)

52.236-2 Differing Site Conditions. (APR 1984)(DEVIATION AUG 2025)

52.236-3 Site Investigation and Conditions Affecting the Work. (APR 1984)(DEVIATION

AUG 2025)

52.236-5 Material and Workmanship. (APR 1984)(DEVIATION AUG 2025)

52.236-6 Superintendence by the Contractor. (APR 1984)

52.236-7 Permits and Responsibilities. (NOV 1991)(DEVIATION AUG 2025)

52.236-8 Other Contracts. (APR 1984)(DEVIATION AUG 2025)

52.236-9 Protection of Existing Vegetation, Structures, Equipment, Utilities, and Improvements. (APR 1984)(DEVIATION AUG 2025)

52.236-10 Operations and Storage Areas. (APR 1984)(DEVIATION AUG 2025)

52.236-11 Use and Possession Prior to Completion. (APR 1984)(DEVIATION AUG 2025)

52.236-12 Cleaning Up. (APR 1984)(DEVIATION AUG 2025)

52.236-13 Accident Prevention. (NOV 1991)(DEVIATION AUG 2025) Alternate I (NOV 1991)

52.236-15 Schedules for Construction Contracts. (APR 1984)(DEVIATION AUG 2025)

52.236-17 Layout of Work. (APR 1984)(DEVIATION AUG 2025)

C-21

Attachments

1. Lake Nighthorse 100-Percent Hydraulics Report – LaPlata County, Colorado

2. Final Pavement Report Lake Nighthorse Access Road – CO FLAP LPL 19(1)

3. Test Hole Report Lake Nighthorse

CO FLAP LPL 10(1) Lake Nighthorse Design Data.zip 01 Horizonal and vertical alignment pdf xml

Mainline ALI_MAIN_Access.xml Mainline Horizontal Geometry Report.pdf Mainline Vertical Geometry Report Sta 105+00 to 113+21.pdf Mainline Vertical Geometry Report Sta 126+72 to 132+51.pdf Overflow Parking Lot ALI_PARK_Access.xml Overflow Parking Lot Horizontal Geometry Report.pdf Overflow Parking Lot Vertical Geometry Report.pdf

02 3D surfaces of existing ground, subgrade, finished grade, and top of base course xml Mainline Existing Ground.xml Mainline FinishedGrade.xml Mainline Subgrade.xml Mainline TopAggregate.xml Overflow Parking Lot Subgrade.xml Overflow Parking Lot-FinishedGrade.xml Overflow Parking Lot-TopAggregate.xml

03 Proposed 3D breaklines dxf Mainline Breaklines.dxf Overflow Parking Lot Access Breaklines.dxf

04 3D coordinates pdf Mainline Blue Top.pdf Mainline Red Top.pdf Mainline Slope Staking Report Sta 105+00 to 113+21 & 126+72 to 132+51.pdf Overflow Parking Lot Access Blue Top.pdf Overflow Parking Lot Access Red Top.pdf Overflow Parking Lot Slope Staking Report.pdf

05 Earthwork Quantity Summary pdf Mainline Earthwork.pdf Overflow Parking Lot Access Earthwork.pdf

Amendment A002 10.29.2025

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SPECIAL CONTRACT REQUIREMENTS

The following Special Contract Requirements amend and supplement the Standard

Specifications for Construction of Roads and Bridges, on Federal Highway Projects (FP-14), U.S. Department of Transportation, Federal Highway Administration.

Section 101. — TERMS, FORMAT, AND DEFINITIONS

101.03 Abbreviations.

(a) Acronyms. Add the following:

CDR — Contractor’s Daily Record

GSA – General Services Administration

(b) US Customary abbreviations and symbols. Delete the text and substitute the following:

ºF — degrees Fahrenheit temperature

A — ampere electric current

ac. — acre area

BTU — British Thermal Unit energy

cu. in. or in3 — cubic inches volume

cu. ft., cf, ft3 or CUFT — cubic feet volume

cu. yd., cy, yd3 or CUYD — cubic yards volume

D — day time deg. or º — degree plane angle

Fc — foot-candles luminous intensity

fl. oz. — fluid ounces volume

ft. or ' — foot or feet length gal. or GAL — gallon volume

H — Henry inductance

hr. or HR — hour time

Hz — hertz (s-1) frequency

in. or " inch or inches length

K — kelvin temperature lb or LB, lbs — pound, pounds mass

Lbf — pound-force force lnft or LNFT linear foot length

mi. — miles length min. or m — minute time min. or ' — minute plane angle

oz. — ounces mass

D E

S

NECIL ODA

R

O L

O C

R E

E

NI

GNE LANOIS

SEF

O R

P

23928

S N

O M

M E

ENEG S

A

L G

U O

D

10/27/2025

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101.04 Definitions. Delete the definition of (c) Supplemental agreement under Contract

Modification.

Add the following:

Masterworks — A web-based system used by the Government, Contractors, and Subcontractors on this Government contract to prepare CDRs, measurement notes (pay notes and field measurement documentation), and transmit submittals, and documents and drawings.

Roadway Prism Delete the text and substitute the following:

Roadway Prism – The area between the original terrain cross-section and the final design cross-section.

Subcontractor Delete the text and substitute the following:

Subcontractor – An individual or legal entity with which the Contractor sublets part of the work.

This includes subcontractors and material suppliers at any tier.

Section 102. — BID, AWARD, AND EXECUTION OF CONTRACT

102.02A Physical Data. (Added Subsection).

Data and information furnished or referred to below is for the Contractor's information. The

Government is not responsible for any interpretation of, or conclusion drawn from the data or information by the Contractor.

(a) The indications of physical conditions on the drawings and in the specifications are the result of site investigations by:

(1) Final Hydraulics Report

(2) Final Pavement Report

(3) Final Utility Test Hole Report

(b) Weather conditions: Contact the National Weather Service.

(c) The Government will furnish the following for use during bidding and construction for the reconstructed segments for Station 105+50.00 to 113+22.00 and Station 127+32.00 to

131+81.00. The following design data is applicable to this project and posted on https://sam.gov/:

(1) Horizontal and vertical alignment listings in Portable Document Format

(.pdf) and LandXML (.xml) formats;

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(2) 3D surfaces of existing ground, subgrade, finished grade, and top of base course in LandXML (.xml) format;

(3) Proposed 3D breaklines in Drawing Exchange Format (.dxf);

(4) 3D coordinates and offset distance from centerline for subgrade and slope staking information and top of base course information at 50-foot (20-meter) intervals and miscellaneous intermediate stations in Portable

Document Format (.pdf);

(5) Earthwork quantity summary in Portable Document Format (.pdf).

Section 103. — SCOPE OF WORK

103.05 Partnering. Delete the third paragraph and substitute the following:

If the partnering offer is accepted, mutually agree with the CO on the level of organizational involvement and the need for a professional to facilitate the partnering process. Engage the facilitator and other resources for key Contractor representatives and the CO to attend a partnership development and team-building workshop. Hold additional progress meetings upon mutual agreement.

Section 104. — CONTROL OF WORK

Add the following after Subsection 104.02:

104.02A Electronic Documentation. Provide documents and drawings electronically using

Masterworks.

Request the Masterworks User Account Form (Form Masterworks-001) and submission instructions. Complete and electronically submit Form Masterworks-001 for each individual requiring Masterworks access. Allow 7 days for system access.

Contact the CO to schedule a training session on the use of Masterworks. The virtual training session will be either a video presentation or live training as determined by the CO. The

Contractor is responsible for training additional staff that were not present during the original training session.

Maintain active Masterworks accounts for all Contractor staff who use Masterworks. Notify the

CO within 24 hours after an account holder is reassigned or no longer employed by the

Contractor and submit a Form Masterworks-001 requesting their account be disabled.

Provide documents and drawings in their native file format (the format produced by the software that the document and drawing was created in) upon request.

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106.02 Visual Inspection. Delete the Subsection and substitute the following:

106.02 Visual Inspection. Acceptance is based on visual inspection of the work for compliance with the contract requirements. In the absence of specific contract requirements or tolerances, use prevailing industry standards.

106.03 Certification. Add the following after the second paragraph:

See Table 106-3 for schedule for full or partial acceptance by material certification. Submit certification and sample of material for testing as required.

Delete the third paragraph and substitute the following:

Check certifications before incorporating the material into the work to ensure that the requirements of the contract have been met. Mark the certifications with the following information:

• Project number and name;

• Pay item number and description;

• Contractor signed certification stating “to the best of our knowledge the materials certified by the attached certification represent the materials incorporated into the work of this contract”; and

• Date.

106.03(a) Production certification. Delete subsection (3) and substitute the following:

(3) Substantiating evidence that the material conforms to the contract quality requirements, including the following:

(a) Test results on material from the same lot and documentation of the inspection and testing system;

(b) A statement from the manufacturer that the material complies with the contract; and

(c) Manufacturer’s signature or other means of demonstrating accountability for the certification.

Table 106-3 Schedule For Full or Partial Acceptance by Materials Certification. Add Table

106-3 following Table 106-2.

Table 106-3 Schedule For Full or Partial Acceptance by Materials Certification

Section Description Material Material Property Or Specification

Frequency

Certification Sample

Minor Crushed

Aggregate Crushed Aggregate

Source, Quality and Gradation 1 per source 1 per source

312 Dust Palliative Calcium Chloride As specified 1 per shipment First shipment

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(3) Do not use existing Lake front restroom facilities.

(4) Obtain an access permit for placement of Changeable Message Signs within CR 210 right of way.

(5) Obtain a City Business Permit. Contact City Clerk’s Office (970) 375-5010 clerk.florine@durangoco.gov. Online application https://durango.munirevs.com/.

Application guide https://www.durangoco.gov/DocumentCenter/View/34255/GovOS-

New-User-Registration--Durango-_-ADA?bidId=

PDF version https://www.durangoco.gov/DocumentCenter/View/27145/City-of-

Durango-License-App-FORM-FIELDS.

(6) Coordinate with City to obtain Tax Exemption Certificate for sales tax exemption of material purchased for the project. Anticipate a 15 day response from the City.

107.11 Protection of Forests, Parks, and Public Lands. Add the following:

Comply with regulations of the state fire marshal, conservation commission, Federal land management agency, or other authority having jurisdiction governing the protection of land including or adjacent to the project.

Section 108. — PROSECUTION AND PROGRESS

108.01 Commencement, Prosecution, and Completion of Work. Add the following: Delete this subsection and substitute the following:

A preconstruction conference will be held after the contract is awarded and before beginning work. Seven days before the preconstruction conference, submit copies of the preliminary construction schedule according to Section 155.

Limit operations according to Subsection 107.10(e) and Section 156.

Limit operations as follows:

(a) Coordinate culvert cleaning with the CO before commencing work activities

(b) Confirm location of existing utilities at new culvert crossings. Protect in place if feasible or notify CO and coordinate with the utility and adjust as needed.

(c) Perform no onsite work prior to April 14.

Perform no work except to maintain traffic control devices, erosion control devices, the roadway driving surface, and to control dust during the listed Federal holidays and surrounding days as shown in Table 108-2.

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Schedule at least 2 non-work days out of every 14 calendar days. The selected non-work days do not need to be consecutive, but they must be scheduled. Notify the CO at least 2 weeks before changing the scheduled days off.

The CO may grant written approval for exemptions to scheduled days off for specific project operations and for periods of limited duration.

Perform no work activities around two (2) Saturday races (September/October), providing parking and a clear and safe access for bicyclists to travel from the entrance to the parking area.

CO to provide race dates two (2) weeks in advance.

Coordinate with the CO for Contractor lock on the entrance gate for access during non-lake hours.

Add the following:

The CO will issue a Notice to Proceed before commencement of any work. The contract completion date is September 10, 2026.

108.02 Subcontracting. Delete the third paragraph and substitute the following:

Within 14 days of subcontract award, submit a completed SF 1413 and 1413S. Complete Part I for each Subcontractor, and include Part II when the Subcontractor performs on-site work.

Complete other forms that may be required by the Government to show the work subcontracted and the total dollar amount of the subcontract. Submit the above required information for each

Subcontractor at lower tiers.

108.03 Determination and Extension of Contract Time. Delete the first sentence.

108.03(c) Time extensions. Add the following:

If a quantity variation described in Subsection 109.06(e) results in an increase in the time necessary for completion, the Contractor may request, in writing, an extension of time as provided within this Subsection.

108.04 Failure to Complete Work on Time.

Delete the second and fourth paragraphs and substitute the following.

Liquidated damages in the amount specified in FAR Clause 52.211-12 Liquidated Damages —

Construction will be assessed for each day beyond the time allowed to complete the contract until substantial completion of the work.

Delete Table 108-1.

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Section 109. — MEASUREMENT AND PAYMENT

109.01 Measurement of Work. Add the following after the sixth paragraph:

Prepare, sign, and submit electronic measurement notes (pay notes and supporting field documentation) using Masterworks. Unacceptable measurement notes will be electronically rejected and returned. Correct rejected measurement notes and resubmit electronically.

Prepare, sign, and submit electronic measurement notes (pay notes and supporting field documentation) using Masterworks. Assign measurement note quantities to the correct funding source and account description for the work performed as designated in the plans. Unacceptable measurement notes will be electronically rejected and returned. Correct rejected measurement notes and resubmit electronically.

109.02 Measurement Terms and Definitions.

(c) Cubic yard (Cubic meter).

(1) Cubic yard (Cubic meter) in-place. Delete this subsection and substitute the following:

Measure the solid volumes by a method approved by the CO, or by a surface to surface method approved by the CO.

(o) Square foot and Square yard (Square meter). Add the following: Do not measure overlaps.

109.06 Pricing of Adjustments. Add the following:

(c) Variation in estimated quantity. If the quantity of a unit-priced item is an estimated quantity and the actual quantity of the unit-priced item varies more than 15 percent above or below the estimated quantity, an equitable adjustment in the contract price may be made upon request of either party. The equitable adjustment will be based upon any increase or decrease in costs due solely to the variation above 115 percent or below 85 percent of the estimated quantity.

109.08 Progress Payments.

(a) General. Delete the last sentence and substitute the following:

The CO may withhold partial progress payment according to Subsection 109.08 (g) for failure to make satisfactory progress until a construction schedule or schedule update is approved by the CO.

(b) Closing date and invoice submittal date. Delete the text and substitute the following:

Submit invoices to the designated billing office by the 7th day after the closing date. Invoices received by the designated billing office after the 16th day following the closing date will not

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The Government will furnish design data listed in 102.02A(c).

The Government will furnish the following for use during bidding and construction for the reconstructed segments for Station 105+50.00 to 113+22.00 and Station 127+32.00 to

131+81.00:

(1) Horizontal and vertical alignment listings in Portable Document Format (.pdf) and LandXML (.xml) formats;

(2) 3D surfaces of existing ground, subgrade, finished grade, and top of base course in

LandXML (.xml) format;

(3) Proposed 3D breaklines in Drawing Exchange Format (.dxf);

(4) 3D coordinates and offset distance from centerline for subgrade and slope staking information and top of base course information at 50-foot (20-meter) intervals and miscellaneous intermediate stations in Portable Document Format (.pdf);

(5) Earthwork quantity summary in Portable Document Format (.pdf).

These files are considered Physical Data according to FAR 52.236-4 Physical Data.

The Government will establish basic survey control points for vertical and horizontal control of the project.

Delete the last sentence of the fourth paragraph from the bottom of the subsection and substitute the following:

Reestablish missing control points and stakes before slope staking begins.

152.05 Survey and Staking Requirements.

(b) Centerline establishment. Add the following:

Reestablishment of centerline may be ordered by the CO and paid for under Section 623 for purposes other than to control the work.

(d) Slope and references stakes.

(2) Conventional survey methods. Add the following:

When the centerline curve radius is less than or equal to 250 feet (75 meters), use a maximum longitudinal spacing between stakes of 25 feet (8 meters). When the centerline is on a tangent or the curve radius is greater than 250 feet (75 meters), use a maximum longitudinal spacing between stakes of 50 feet (15 meters).

(f) Grade-finishing stakes. Delete (1) AMG method.

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Section 718. — TRAFFIC SIGNING AND MARKING MATERIAL

718.01 Retroreflective Sheeting. Add the following:

Furnish fluorescent type sheeting for all signs and all devices specifying an orange or a yellow background.

Section 725. — MISCELLANEOUS MATERIAL

725.04 Pozzolans. Delete line (a) and substitute the following:

(a) Fly ash. Conform to AASHTO M 295 4.5 percent max

Class C or Class F.

When used to mitigate alkali-silica reactivity, also available alkalies as equivalent Na2O

Add the following:

725.19 Weathering Agent. Furnish a weathering agent that colors rock, cementitious, and galvanized surfaces to a brownish earth tone, and contains no pigments. Furnish a material that contains chemical components that have no adverse reactions or effects on soils, plants, or animals. The material cannot contain corrosive by-products once the product has been applied.

Natina® products are acceptable for coloring rock surfaces; cementitious surfaces; and galvanized surfaces. Identification by brand name is intended to be descriptive, not restrictive, and is intended to indicate the quality and characteristics of products that will be satisfactory.

Submit “or equal” products meeting the following salient characteristics to the CO for approval:

(a) A soluble solution that contains organic acids and natural oxidizers;

(b) All coloring developed through a reactionary process that etches surfaces, producing a finish that’s resistant to fading from exposure to sunlight, with an expected performance life exceeding 10 years in nonaggressive climates.

(c) A product that causes negligible zinc coating losses when applied to galvanized surfaces.