A001 NEGRITO 8.6.24.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

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

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

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

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

A001

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

IFB: Remove and replace page A-1 with the attached corresponding page.

SCRs: Remove and replace pages E33 to E49 with the attached corresponding pages.

*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.

FEDERAL HIGHWAY ADMINISTRATION

CENTRAL FEDERAL LANDS HIGHWAY DIVISION

12300 WEST DAKOTA AVENUE, SUITE 360

LAKEWOOD, COLORADO 80228

ATTENTION: CONTRACT SPECIALIST NAME

HFLCEO240278PR

6982AF24B000014

NM FS 141(1)

1 19

08/06/2024

07/08/2024

0*

*See Item 14

SOLICITATION, OFFER

AND AWARD

(Construction, Alteration or Repair)

1. SOLICITATION NO.

6982AF24B000014

2. TYPE OF SOLICITATION

SEALED BID (IFB)

NEGOTIATED (RFP)

3. DATE ISSUED

07/08/2024

PAGE OF

PAGES

IMPORTANT - THE "OFFER SECTION ON THE REVERSE MUST BE FULLY COMPLETED BY OFFEROR.

4. CONTRACT NO. 5. REQUISITION/PURCHASE REQUEST NO.

HFLCEO240278PR

6. PROJECT NO.

NM FS 141(1)

7. ISSUED BY:

FEDERAL HIGHWAY ADMINISTRATION

CENTRAL FEDERAL LANDS DIVISION

12300 WEST DAKOTA AVENUE, SUITE 167

LAKEWOOD, COLORADO 80228

CODE: 69050001 8. ADDRESS OFFER TO:

Laura Vallejos, Contract Specialist Federal Highway Administration Central Federal Lands Division Office 12300 W. Dakota Avenue Lakewood, CO 80228

9. FOR INFORMATION CALL

SEE PAGE A-3

A. NAME:

SEE PAGE A-3

B. TELEPHONE NO. (Include area code)

SEE PAGE A-3

SOLICITATION

NOTE: In sealed bid solicitations "offer" and "offeror" mean "bid" and "bidder."

10. THE GOVERNMENT REQUIRES PERFORMANCE OF THE WORK DESCRIBED IN THESE DOCUMENTS:

ROADWAY CONSTRUCTION PROJECT IN STRICT ACCORDANCE WITH:

1. FEDERAL ACQUISITION AND TRANSPORATION ACQUISITION REGULATIONS (FAR & TAR)

2. DEPARTMENT OF LABOR, CONSTRUCTION WAGE RATE REQUIREMENT RATES

3. SPECIAL CONTRACT REQUIREMENTS

4. PLANS

5. BID SCHEDULE

6. STANDARD SPECIFICATIONS FOR CONSTRUCTION OF ROADS AND BRIDGES ON FEDERAL HIGHWAY

PROJECTS, FP-14, U.S. CUSTOMARY UNITS

See Subsection 104.04 of the FP-14 for governing order of precedence

11. The Contractor shall begin performance within 10 calendar days and complete it within * calendar days after receiving award notice to proceed. The performance period is mandatory negotiable. *Refer to Subsection 108.01 as amended in the Special Contract Requirements.

12A. THE CONTRACTOR MUST FURNISH ANY REQUIRED PERFORMANCE AND PAYMENT BONDS?

(If "YES," indicate within how many calendar days after award in Item 12B.) YES NO

12B. CALENDAR DAYS

13. ADDITIONAL SOLICITATION REQUIREMENTS:

A. Sealed offers in original and 0 copies to perform the work required are due at the place specified in Item 8. by 2:00 p.m. (hour) local time on 8/08/24 (date). If this is a sealed bid solicitation, offers will be publicly opened at that time. Sealed envelopes containing offers shall be marked to show the offeror's name and address, the solicitation number, and the date and time offers are due.

B. An offer guarantee is is not required.

C. All offers are subject to the (1) work requirements and (2) other provisions and clauses incorporated in the solicitation in full text or by reference.

D. Offers providing less than 60 calendar days for Government acceptance after the date offers are due will not be considered and will be rejected.

STANDARD FORM 1442 (REV. 12/2022)

Prescribed by GSA

X

X

X

X

X

A-1 A001 08/06/2024

8/15/2024 laura.vallejos Cross-Out

E-33 Project Number: NM FS 141(1)

Project Name: South Fork Negrito Creek Bridge

Verify mixture design with trial mixes from proposed sources or with previous concrete production data for the mixture design submitted from proposed sources.

(w) Delete the paragraph and substitute the following:

Specified design strength (f’c) and required average concrete compressive strength (f’cr) for the concrete mixture at 28 days as determined by the process and associated calculations outlined on FHWA Form 1608, pages 4 and 5. Pending 28-day strength results, a mix design may be approved on the basis that 7-day compressive strength results meet or exceed 85 percent of the required average strength (f’cr) at 28 days;

552.08 Delivery

(a) Truck mixer/agitator.

Delete Table 552-4 and substitute the following:

Table 552-4 Concrete Remixing and Discharge Time Limits

Cement Type (1) Admixtures Remixing Time Limit

(hour)

Discharge Time Limit

(hour) Type I, IA, II, IIA, V, or approved blended hydraulic cement None 0.75 1.00

Type I, IA, II, IIA, V, or approved blended hydraulic cement

AASHTO

M 194, Type B, D, or G

1.25 1.50

Type I, IA, II, IIA, V, or approved blended hydraulic cement

Hydration stabilizer 3.00

Approved design discharge time limit,

4.50 maximum Type III None 0.50 0.75

Type III

AASHTO

M 194, Type B, D, or G

1.00 1.25

(1) AASHTO M 85 or AASHTO M 240 as applicable.

552.09 Quality Control of Mix. Add the following:

Prosecution of work: At least 2 weeks prior to the start of concrete placement operations, arrange a pre-concrete placing conference. Coordinate attendance with the CO and any applicable subcontractors. Be prepared to discuss and/or submit the following:

(1) Proposed concrete placement schedule.

A001 08/06/2024

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Project Name: South Fork Negrito Creek Bridge

(2) Review approved concrete mix design and determination of batch weights.

(3) Discuss Section 153, Contractor Quality Control and the minimum frequency schedule for process control sampling and testing (to be performed by the Contractor).

(4) Discuss batching, mixing, placing, and curing requirements.

(5) Discuss Subsections 106.03, Certification, and 106.05, Statistical Evaluation of Material for Acceptance.

Section 555. — STEEL STRUCTURES

Description

555.01 Add the following:

This work consists of furnishing all engineering services, materials, equipment, and labor required to construct a fully engineered, simple span, two-lane, portable, modular steel girder vehicular bridge with structural steel bridge decking and steel bridge traffic railings for the replacement of the South Fork Negrito Creek Bridge. It includes designing, fabricating, transporting, and erecting the superstructure including steel girders and diaphragms, structural steel decking, steel bridge railings, elastomeric bearing pads, bearing plates, anchor bolts, side dam plates and end angles for asphalt pavement deck, and all associated hardware. Design and construct the bridge in accordance with these specifications and the plans.

Materials

555.02 Add the following:

Guardrail 617

Construction Requirements

555.03 Drawings and Diagrams. Add the following:

In addition to the requirements listed under design criteria, provide a list of all the components of the modular bridge hardware including series number and material specifications. Include in the general notes all relative design information such as bridge reactions due to dead load, live load, E-35 wind load, seismic load, braking load, temperature load, live load capacity, live load deflection criteria, and steel grades.

Also, include in the drawings the following information: plan layout including length, width, and orientation, typical section, lifting and transporting details, tolerances, special contract requirements and construction specifications. Provide details for all connections and other details relevant to the bridge construction.

Prepare and submit all working drawings, calculations, and supporting information for review and approval in accordance with the applicable requirements of subsection 104.03. Provide unique shop drawings for the bridge, prepared to illustrate the work to be done. The approved shop drawings for the bridge will be combined with the contract drawings to become the record set of plans for the bridge.

555.03A General. Add the following subsection:

The bridge consists of a modular design which employs steel rolled beams and structural steel bridge decking and includes steel bridge railings. Create a final configuration which is consistent with that shown on contract plans. Design and fabricate the bridge such that the components may be assembled in the field with minimal specialized tools or skills. Perform welding and weld qualification tests according to the provisions of AASHTO/AWS D1.5M/D1.5 Bridge Welding Code. The bridge shall meet the following requirements:

(a) Use high-strength, low alloy, corrosion resistant steel conforming to AASHTO M270, Grade 50W (ASTM A709, Grade 50W) for all major structural steel components (girders, diaphragms, splice plates, bridge railing posts, bearing plates, etc.). Use bolts, nuts, and washers for structural steel connections conforming to ASTM F3125, Grade A325, Type 3. Clean all exposed surfaces of self weathering steel in accordance with SSPC Surface Preparation Specifications No. 6, Commercial Blast Cleaning, SSPC-SP6, prior to shipping. Minimum thickness of structural steel is 3/16”.

(b) Provide galvanized structural steel corrugated bridge decking conforming to ASTM A653, Grade 50, Class 1 or ASTM A1011-SS. Steel side dam plates and end angles shall be provided to accommodate a depth of asphalt pavement fill as shown on the plans. Provide positive connections between steel girders and steel bridge decking.

If bolts are employed for this connection, they shall be clipped to girder flange using ASTM F3125, Grade A325, Type 1 fasteners. All clips and connection hardware at these locations shall be galvanized.

(c) Provide anchor bolts conforming to ASTM F1554, Grade 55 or 105. Galvanize anchor bolts after fabrication.

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(d) Provide steel reinforced elastomeric bearings conforming to AASHTO M251, 60 Durometer hardness, elastomer grade 2 or higher. The bearings at each abutment shall be designed as expansion bearings, so that thermal deformations are divided equally to each abutment. Design bearings per AASHTO LRFD method A.

(e) Provide galvanized steel thrie-beam guardrail components conforming to AASHTO

M180, Type I, Class B.

Design criteria is as follows:

(a) Provide a fully engineered modular steel girder bridge designed in accordance with these specifications. Prior to fabrication, submit for approval complete structural calculations, showing the governing capacity and demand values for all members and connections, and detailed shop drawings bearing the seal of a registered Professional Engineer. Design in accordance with current edition of the AASHTO LRFD Bridge Design Specifications.

(b) Provide a modular bridge with a clear deck surface width as shown on the contract plans. Steel girder and diaphragm sections may be fabricated into two or more longitudinal sections, joined together with positive connections, to form the full width of the bridge. Girder sections may be field spliced to form the full length of the bridge, with full consideration of transportation and site constraints and erection equipment limitations.

(c) Provide a length of 78 feet measured as shown on the plans.

(d) Limit superstructure depth, measured from top of finished profile grade to bottom of girder, to 3 feet 6 inches, maximum. Coordinate final dimensions including bearing and anchor bolt locations with modular bridge manufacturer before construction of concrete abutments.

(e) Camber the modular bridge steel girders to offset dead load deflections.

(f) Design the bridges for dead and live loads indicated on the plans.

(g) Design traffic bridge railing for the design forces specified in Table A13.2-1 of the

AASHTO LRFD Bridge Design Specifications for a minimum railing test level of

TL-2.

(h) Design anchor bolts for seismic forces for the seismic zone indicated on the plans.

(i) Structural calculations for the bridge shall include load ratings per current AASHTO Manual for Bridge Evaluation. Provide Inventory and Operating Rating Factors for

E-37 the steel girders by LRFR method for the HL93 design vehicle, and Load Ratings for the AASHTO Legal Loads Type 3, Type 3S2, Type 3-3, the AASHTO Notional Rating Load (NRL), Specialized Hauling Vehicles SU4, SU5, SU6, SU7 and Emergency Vehicles EV2 and EV3.

555.05 Inspection. Add the following after the last paragraph:

All primary longitudinal superstructure components and connections subject to tensile stress due to the Strength Load Combination I require mandatory Charpy V-notch testing. Identify these members and connections in the shop drawing submittal. Charpy V-notch requirements for these members, shall be in accordance with AASHTO M270 for Temperature Zone 2. Test in conformance with AASHTO T243, Frequency H.

555.07 Fabrication. Delete the text of the first sentence of the first paragraph and substitute the following:

Fabricate the structural steel in a fabricating plant that is certified as IBR (Certified Bridge Fabricator – Intermediate), under the AISC Quality Certification Program.

555.18 Erection. Add the following:

Prepare the construction site and erect the bridge in accordance with the manufacturer’s recommendations.

Provide steel erector certified according to category CSE (Certified Steel Erector) under the AISC Quality Certification Program.

555.19 Acceptance. Add the following:

Elastomeric bearings will be evaluated under Subsection 106.03. Furnish production certifications for elastomeric bearings.

Material for guardrail will be evaluated under Subsections 106.02 and 106.03.

Measurement

555.20. Delete the second paragraph and substitute the following:

Measure the modular bridge by the lump sum. This includes all work and expenses involved in designing, fabricating, transporting, constructing, furnishing, and erecting the modular bridge including structural steel girders and diaphragms, structural steel splice plates, structural steel

E-38 bridge decking, steel bridge railing, elastomeric bearings, bearing plates, anchor bolts, side dam plates, end angles, and all associated hardware.

Section 563. — PAINTING

563.01 Add the following:

This work also consists of finishing surfaces with a reactive colorant to produce a natural weathered appearance.

Material

563.02 Add the following:

Weathering agent 725.19

563.05 Protection of Public, Property, and Workers. Add the following:

Comply with all applicable federal, state, and local regulations. Furnish material safety data sheets for all cleaning and staining products.

Add the following:

563.10A Weathering Agents.

Apply weathering agent to the required galvanized surfaces at the manufacturer’s facility. After application, cure the treated guardrail materials to develop the full coloration according to the manufacturer’s recommendation.

Repair damages or discoloration to the final finish by field applying weathering agent according to the manufacturer’s recommendations.

563.12 Acceptance. Add the following: Reactive colorant finishes will be evaluated under Subsections 106.02.

Section 564. — BEARING DEVICES

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564.04 Elastomeric Bearings. Delete the first paragraph and substitute the following:

Fabricate, comply with testing and acceptance criteria, and mark elastomeric bearings according to AASHTO M 251. Test and accept bearings specified by hardness and designed according to Method A of AASHTO, Load and Resistance Factor Design (LRFD) Bridge Design Specifications according to Section 8.8.4 of AASHTO M 251.

Use material that meets the flash tolerance, finish, and appearance requirements of the Rubber Handbook as published by the Rubber Manufacturer’s Association Incorporated, RMA F3 and T.063 for molded bearings and RMA F2 for extruded bearings.

Section 565. — DRILLED SHAFTS

565.08 Concrete for Drilled Shafts. Delete the fourth paragraph and substitute the following:

Furnish concrete conforming to Section 552, except:

• Use Class C structural concrete having a slump of 7±1 inches (180±25 millimeters) for shafts constructed without drilling fluid;

• Use Class C structural concrete having a slump of 8±1 inches (200±25 millimeters) for shafts constructed with drilling fluid; and

• Seal concrete for under water placement.

565.09 Integrity Testing.

(b) Test results and reporting. Delete the last paragraph and substitute the following:

CSL Test results will be evaluated by the following criteria:

Satisfactory FAT increase 0 to 10% and Energy Reduction < 6 dB

Anomaly FAT increase 11 to 20% and Energy Reduction < 9 dB

Flaw FAT increase 21 to 30% or Energy Reduction of 9 to 12 dB

Defect FAT increase > 31% or Energy Reduction > 12 dB

Identify and provide detailed discussion of each flaw or defect zone detected by the CSL.

Collect and process additional data sufficient to construct three-dimensional color-coded

E-40 tomographic images with two-dimensional cross-sections between tubes within the flawed or defective zones.

565.10 Acceptance. Delete 565.10(b)(1) and 565.10(b)(2) and substitute the following:

(b) Construction of drilled shafts will be evaluated under Subsections 106.02, 106.03, and 106.04 as follows:

(1) Drilled shafts determined as satisfactory or anomaly, as listed in Subsection 565.09(b), are acceptable.

(2) For drilled shafts exhibiting flaw or defect zones, as listed in Subsection 565.09(b), furnish additional tomographic imaging and other data required as listed in Subsection 565.09(b) to enable further evaluation of the drilled shaft. The CO will evaluate the crosshole sonic logging data and the tomographic imaging data and make a determination as to the presence of substantive defects. If defects are determined to be substantive, submit an action plan to the CO proposing measures to address the flaw or defect zones. The action plan may include activities such as collecting additional imaging, core drilling and sampling, drilling and injecting grout, or excavating and repairing the shaft. Additional guidance on action plans is available in “Standard Drilled Shaft Anomaly Mitigation Plan” published by the International Association of Foundation Drilling (ADSC) in 2014.

Section 617. — GUARDRAIL

617.01

(a) Add the following:

MGS — Midwest Guardrail System (MGS)

(d) Add the following:

MGS Flared - Straight flared MGS W-beam terminal MGS Tangent - Tangent MGS W-beam terminal SBL-FAT - Flared SBL anchor terminal

Material

617.02 Add the following:

Painting 563

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Treat all galvanized material for guardrail systems with a weathering agent according to Section 563.

Use tangent terminals meeting MASH Test Level 2. When proprietary terminals are required, submit the installation manual from the manufacturer for the terminal, including inspection checklists.

617.04 Post Installation. Delete the fifth and sixth paragraphs and substitute the following:

When a post cannot be placed at its normal location due to an impenetrable object an additional blockout may be added. If the post cannot be offset, follow the post in rock detail, the long span detail, or omit a post as shown in the plans.

Use the post length as shown in the plans. Do not change the post length or spacing in terminal sections.

617.07 Connection to Structure. Add the following:

Do not change the post length or spacing in structure transition rail sections.

617.11 Acceptance. Add the following:

Painting will be evaluated under Section 563.

Section 623. — GENERAL LABOR

Delete the text of this Section and substitute the following:

Description

623.01 This work consists of furnishing workers and hand tools for construction work, survey crews, and furnishing qualified personnel to perform technical work ordered by the CO and not otherwise provided for under the contract.

Construction Requirements

623.02 Workers and Equipment. Furnish competent workers and appropriate hand tools for the work. Provide a crew of sufficient size and qualifications necessary to accomplish the required surveying services within acceptable tolerances.

Obtain approval of the length of a workday and workweek before beginning the work. Keep daily records of the number of hours worked. Submit the records along with certified copies of the payroll.

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623.03 Surveying Services. Furnish personnel, equipment, and material that conform to the requirements of Subsection 152.01. Survey according to Section 152.

Survey and establish controls within the tolerances shown in Table 152-1, or within other tolerances as established by the CO.

Prepare field notes in an approved format. Furnish calculations. All field notes, supporting documentation, and calculations become the property of the Government upon completion of the work.

623.04 Technical Services. Furnish qualified engineering personnel experienced in highway construction and design, capable of performing in a timely and accurate manner. Provide personnel with a minimum of NICET Level II certification in highway design and construction, or State (SHA) or industry certification-related design and construction equivalent to their intended responsibilities. Personnel with 2 years or more of recent job experience in the type of highway design and construction provided for under the contract may be used in lieu of certifications. Provide the names and relevant experience of all personnel. Furnish supporting tools and equipment (e.g., calculator, computer, and software, and appropriate and commonly-used drafting tools for the assigned task).

All calculations, notes, and supporting documentation become the property of the government upon completion of the work.

623.05 Acceptance. General labor work will be evaluated under Subsection 106.02.

Additional surveying services will be evaluated under Section 152.

Hired technical services will be evaluated under Subsections 106.02 and 106.04

Measurement

623.06 Measure the Section 623 items listed in the bid schedule according to Subsection 109.02 and the following as applicable.

Round portions of an hour up to the nearest half hour. Measure time in excess of 40 hours per week at the same rate as the first 40 hours.

Measure surveying service by the crew hour regardless of crew size. Do not measure time spent in making preparations, performing calculations, plotting cross-sections, processing computer or other data, and other efforts necessary to successfully accomplish the ordered survey services.

Do not measure time for worker’s transportation to and from the project site.

Measure office technical services by the hour, as ordered by the CO, for performing calculations, plotting cross-sections, and processing computer or other data.

Payment

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623.07 The accepted quantities will be paid at the contract price per unit of measurement for the Section 623 pay item listed in the bid schedule. Payment will be full compensation for the work prescribed in this section. See Subsection 109.05.

Section 625. — TURF ESTABLISHMENT

625.03 General. Delete the first sentence and substitute the following:

Perform all seeding between September 1 and October 31.

Measurement

625.11 Delete the second sentence and substitute the following:

When measuring turf establishment and supplemental applications by the acre (hectare) or square yard (square meter), measure on the ground surface.

Section 635. — TEMPORARY TRAFFIC CONTROL

635.01 Delete the second paragraph and substitute the following:

Arrow board, portable changeable message sign, barricade, and warning light types are designated in the MUTCD.

Material

635.02 Delete the Subsection and substitute the following:

635.02 Conform to the MUTCD and the following Sections and Subsections:

Concrete barrier (temporary) 618 Delineator and object marker retroreflectors 718.08 Guardrail (temporary) 617 Retroreflective sheeting 718.01 Sign panels 718.03 Sign posts 718.04 Sign hardware 718.06

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Temporary plastic fence 710.11 Temporary pavement markings 718.16

635.07 Construction Signs. Delete the first paragraph and substitute the following:

Fabricate and install sign panels according to Subsection 633.05. Use Type III, IV, VIII, IX, or XI prismatic retroreflective sheeting. Use fluorescent sheeting for orange signs. For roll-up signs, use fluorescent Type VI retroreflective sheeting.

Add the following:

Provide the same type of sheeting on all post-mounted construction signs that pertain to the project.

Use crashworthy posts within the traversable area adjacent to traffic.

635.09 Flaggers. Add the following:

Perform the work described under MUTCD Part 6. Use fluorescent retroreflective sheeting on the “SLOW” side of the flagger paddle.

Payment

635.25 Add the following:

Progress payments for temporary traffic control lump sum will be paid as follows:

(a) 25% of the pay item amount will be paid when initial construction signs are in place and needed devices onsite for use.

(b) An additional 65% of pay item amount will be prorated based on total work complete.

(c) The remaining portion of the pay item amount will be paid when the construction signs and devices are no longer needed and have been removed from the project.

(d)

Section 702. — ASPHALT MATERIAL

702.01 Asphalt Binder. Delete the Subsection and add the following:

702.01 Asphalt Binder. Conform to M 320, Table 1.

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In AASHTO M 320, Table 1 replace footnote g with the following:

g If the creep stiffness is below 300 MPa, the direct tension test is not required. If the creep stiffness is between 301 and 600 MPa, the creep stiffness value shall be used. The m-value requirement must be satisfied in both cases.

Section 703. — AGGREGATE

703.01 Add the following:

703.01 Fine Aggregate for Concrete.

© Sand equivalent value, AASHTO T 176, 75 min.

Alternate Method No. 2

703.05 Subbase, Base, and Surface Course Aggregate.

(a) General. Delete the following:

(3) Durability index (coarse), AASHTO T 210 35 min.

(4) Durability index (fine), AASHTO T 210 35 min.

(b) Subgrade or Base aggregate. Delete line (2) and substitute the following:

(2) Liquid limit, AASHTO R 58 and T 89 25 max

(0) ©Surface Course Aggregate. Add the following:

(4) Dust ratio: 2/3 max.

Do not use material that breaks up when alternately frozen and thawed or wetted and dried.

Obtain the aggregate gradation by crushing, screening, and blending processes as necessary.

Fine aggregate, material passing the No. 4 sieve, will consist of natural or crushed sand and fine mineral particles.

703.06 Crushed Aggregate. Add the following to the end of the paragraph:

When aggregate is used as a surface course, furnish an aggregate with a Plasticity index (AASHTO T 90) conforming to Table 703-3a.

Table 703-3a Surface Course Gradation and Plasticity Index

Sieve Size Percent by Mass Passing

% passing #200 % passing #40

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Designated Sieve (AASHTO T 27 and T 11)

¾ inch (19 mm) 100 No. 4 (4.75 mm) 41-71 No. 40 (425 µm) 12-28 No. 200 (75 µm) 5-20

Plasticity Index (PI) 0-12

Section 704. — SOIL

704.04 Structural Backfill. Delete line (c) and add the following:

(c) Plastic index, AASHTO R 58 and T 90 6 max.

(d) Liquid limit, AASHTO R 58 and T 89 30 max.

704.07 Select Borrow. Delete line (b) and add the following:

(b) Liquid limit, AASHTO R 58 and T 89 30 max.

(c) Plastic index, AASHTO R 58 and T 90 6 max.

704.08 Select Granular Backfill.

(a) Quality requirements. Delete lines (2) and (4) and substitute the following:

(2) Peak shear maximum angle of internal friction 34o min.

on the portion passing the No. 4 sieve, AASHTO T 236

(4) Plastic index, AASHTO R 58 and T 90 6 max.

(a) Quality requirements. Add line (6):

(6) Liquid limit, AASHTO R 58 and T 89 30 max.

(b) Electrochemical requirements for MSE walls with metallic reinforcements. Delete the Note and substitute the following:

Note: Tests for sulfate and chloride content are not required when the pH is between 6.0 and

8.0 and resistivity is greater than 5000 ohm centimeters.

Add the following Subsection:

704.09 Slope Fill. Furnish sound, durable, granular soil free from organic matter or other deleterious material (such as shale or other soft particles with poor durability). Conform to the following:

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(a) Quality requirements.

(1) Gradation Table 704-3

(2) Sodium sulfate soundness loss (5 cycles) 15% max.

(3) Liquid limit, AASHTO R 58 and T 89 40 max.

(4) Plastic index, AASHTO R 58 and T 90 20 max.

Table 704-3 Slope Fill Gradation

Sieve Size Percent by Mass Passing

Designated Sieve (AASHTO T 27 and T 11)

4 inch 100 No. 4 20–100 No. 40 0 – 60

No. 200 0 – 35

Section 710. — FENCE AND GUARDRAIL

710.06 Rail Elements.

(a) Metal beam rail. Delete the first sentence and substitute the following:

Furnish guardrail posts conforming to the Task Force 13 Guide to Standardized Roadside Safety Hardware.

(b) Box beam rail. Delete the first sentence and substitute the following:

Furnish guardrail posts conforming to the Task Force 13 Guide to Standardized Roadside Safety Hardware.

710.07 Guardrail Posts. Delete the first sentence and substitute the following:

Furnish guardrail posts conforming to the Task Force 13 Guide to Standardized Roadside Safety Hardware.

710.09 Guardrail Nuts, Bolts, and Cables.

(b) Weathering nuts and bolts. Delete the second sentence and substitute the following:

Furnish bolts conforming to ASTM F3125, Type 3.

710.10 Guardrail Hardware. Delete the first sentence and substitute the following:

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Furnish guardrail posts conforming to the Task Force 13 Guide to Standardized Roadside Safety Hardware.

Add the following:

Furnish a flexible hinged guardrail delineator which allows the reflector to fold down and spring back to an upright position after impact. Furnish retroreflective sheeting conforming to ASTM D4956, including supplementary requirements. Use type IV or XI retroreflective sheeting permanently adhered to 0.090-inch minimum thick body.

Section 713. — ROADSIDE IMPROVEMENT MATERIAL

713.04 Seed. Add the following:

Use the following seed mix:

Species Seeds/ft2 Contribution from

Planting Rate

# Live Seeds/lb

Planting Rate (pls (lbs)/acre)

Mountain Brome (Bromus marginatus) 10 90,000 4.84

Muttongrass (Poa fendleriana) 10 890,000 0.49 Blue Grama (Bouteloua gracilis) 10 724,000 0.60

Squirreltail (Elymus elymoides) 10 192,000 2.27 Total 40.00 8.2

713.16 Silt Fence. Delete Subsection (a) and substitute the following:

(a) Geotextile. Conform to Table 8 of AASHTO M 288.

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

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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.