SEED PROJECT J pages.pdf

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FEDERAL HIGHWAY ADMINISTRATION

EASTERN FEDERAL LANDS HIGHWAY DIVISION

SPECIAL CONTRACT REQUIREMENTS

Project NP NATR BMS FY20(1)

NATCHEZ TRACE PARKWAY

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.

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Section 101. — TERMS, FORMAT, AND DEFINITIONS

Section 107. — LEGAL RELATIONS AND RESPONSIBILITY TO THE PUBLIC

107.02. Add the following to the third paragraph:

Vehicle and machinery access to the work is allowed only from the road or the bridge deck. No vehicles or machinery is permitted beyond the edge of the shoulder unless approved by the CO.

All areas beyond the edge of the shoulder can be accessed on foot.

Section 104. — CONTROL OF WORK

104.03(c). Delete the first sentence of the first paragraph and substitute the following:

Furnish one full-size (24-inch by 36-inch) paper copy of the plans from the Government-provided electronic plans, and use this set of plans exclusively for as-built drawings.

104.05. Add the following:

When hauling on National Park Service roads, do not exceed the load restrictions shown in Table 104-1.

Table 104-1 Load Restrictions

Single Units Gross Vehicle Weight, pounds

2 axles 40,000 3 axles 48,000 4 or more axles 52,000

Combination Units Gross Vehicle Weight, pounds

3 axles 57,000 4 axles 62,000 5 or more axles 66,000

Where the ground is saturated with water or during periods of freezing and thawing, the CO may impose further load restrictions or suspend hauling.

Section 106. — ACCEPTANCE OF WORK

106.05. Add the following:

At the preconstruction conference, the Government will provide a copy of the computer program “QL-PAY”, along with instructions. QL-PAY is a Windows based program that computes the

J-3 quality levels and pay factors as described in this Subsection.

Section 108. — PROSECUTION AND PROGRESS

108.01. Add the following:

Construction operations are limited as follows:

(a) No work will be permitted on Saturdays, Sundays, or National legal holidays.

(b) No work will be permitted on days with special events occurring in the vicinity, as determined by the CO.

If the Contractor finds it necessary to work on one of these restricted days, request approval from the CO at least 14 days before the planned work.

Coincident with this contract, other contracts for construction projects may be underway or may commence during the construction of this project. Coordinate with the CO and other contractors to minimize disruption to this project and to other construction projects in the area.

108.03(c). Add the following:

Under FAR Clause 52.249-10, Default (Fixed-Price Construction), the Contractor can request a time extension for a delay due to unusually severe weather as defined under Section

155. If a time extension is requested for unusually severe weather, submit a time impact analysis according to Subsection 108.03(b) and include supporting historical weather data according to Subsections 155.04A and 155.04B. The following criteria will be used for determining a time extension for unusually severe weather:

(1) Time adjustment for rain delays. If the net number of actual workdays lost to rain is less than the total lost days for the month in question, then no time adjustment will be made. If the net number of actual workdays lost to rain is more than the total lost days for the month in question, then a time extension may be granted.

(2) Time adjustment for other weather delays. If a time extension is requested for other unusually severe weather conditions such as snow, extreme cold or heat, high winds, etc., follow the same calculation, submittal, and criteria procedures as outlined for rain delays.

Section 109. — MEASUREMENT AND PAYMENT

109.08(b). Add the following:

Submit invoices by the 7th day after the closing date. Invoices received after the 16th day

J-4 following the closing date will not be accepted for payment processing that month. Include late, unprocessed invoice submittals in the following month’s invoice.

109.08(c). Add the following:

The Government’s designated billing office is:

Federal Highway Administration Eastern Federal Lands Highway Division Loudoun Tech Center 21400 Ridgetop Circle Room 200 Sterling, Virginia 20166-6511

ATTN: CONSTRUCTION OFFICE

Section 154. — CONTRACTOR SAMPLING AND TESTING

154.02. Add the following:

Submit proposals for using alternate AASHTO or state department of transportation approved test methods in writing for approval. Alternate methods may be allowed based on documented equivalence to the method specified.

154.03. Add the following:

Deliver the Government’s portion of the sample or split sample in an acceptable container suitable for shipment to the CO.

154.05. Add the following:

For items accepted under Subsection 106.05, submit a copy of all current test results and pay factor calculations based on those tests on a weekly basis. When large quantities are produced, calculate pay factors as soon as possible. Use this information to make any necessary adjustments to operations to achieve acceptable pay factors. The Government may use the Contractor’s test results to determine final pay factors for acceptance.

Section 155. — SCHEDULES FOR CONSTRUCTION CONTRACTS

155.02. Add the following:

(g) Reasonably predictable weather. The number of workdays that can expect to be lost in any month due to rainfall based on 10-year historical weather data.

(h) Rain day. A potentially lost workday on which rainfall is equal to or greater than 0.10

J-5 inches.

(i) Drying day. A workday immediately following a rainfall equal to or greater than 1.00 inch which is potentially lost because of wet ground conditions.

(j) Workday. A day not excluded from work by Section 108.

(k) Unusually severe weather. When the number of actual workdays lost is greater than the reasonably predictable weather for a specific month.

155.04(f). Add the following:

If a subcontract has not yet been awarded for a certain portion of the work, include the schedule for that work.

155.04. Add the following:

(j) A completed Table 155-1 prepared according to Subsection 155.04A.

Add the following after Subsection 155.04:

155.04A Reasonably Predictable Weather. Determine reasonably predictable weather for this contract by completing Table 155-1. Calculate data for Table 155-1 by computing the average number of workdays lost (rain days plus drying days) for each month and the standard deviation from the average, using the last 10 years of historical weather data from the nearest National Oceanic and Atmospheric Administration (NOAA) weather data collection station. Add the average number of workdays lost to the standard deviation. The total number of lost days (average workdays lost plus 1 standard deviation, rounded to whole days) will be considered normal for each month.

155.04B Unusually Severe Weather. If requesting a time extension due to unusually severe weather, calculate the number of actual workdays lost by totaling the actual rain days plus the actual drying days occurring in the month in question. From this total, deduct any workdays meeting any one of the following conditions:

(a) The rain day or drying day occurred on a non-work weekday such as a holiday.

(b) The rainfall occurred at a time when no weather dependent work was in progress or occurred during planned or unplanned shutdowns due to other circumstances such as equipment failure, strikes, material supplies, delays, etc.

(c) The Contractor was still working or able to work on weather dependent activities to the extent that less than 50 percent of the workday was lost due to weather.

If the net number of actual workdays lost is greater than the total lost days, then unusually severe weather occurred during the month in question.

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Table 155-1

Reasonably Predictable Weather Project Number:

Project Location:

NOAA Station Location:

Data Years (10-year history):

Month Average

Workdays Lost

Standard Deviation

Total Lost Days

January February March April May June July August September October November December

155.05. Delete the first sentence and substitute the following:

Prepare and submit a Bar Chart Method (BCM) initial construction schedule.

155.05(a)(1)(c). Add the following:

Include unreflected items, or components of work within a pay item, as separate activities as directed by the CO.

155.06. Delete the first sentence of the second paragraph and substitute the following:

Unless previously approved by the CO, changes to the construction schedule for work that is still to be completed can only be changed with a time impact analysis according to Subsection 108.03, and a Baseline Construction Schedule revision according to Subsection 155.07.

155.07. Delete the third sentence and substitute the following:

Continue to submit monthly schedule updates according to Subsection 155.06 until a baseline construction schedule revision is approved.

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Section 156. — PUBLIC TRAFFIC

156.04. Delete the first paragraph and substitute the following:

Accommodate traffic according to the MUTCD, contract traffic control plan, Section 635, and this Section. An alternate traffic control plan may be submitted for approval in accordance with Subsection 104.03 and the following:

(a) Ensure safe and efficient pedestrian, bicycle, and vehicular traffic (including emergency vehicles) at all times during construction;

(b) Schedule and perform work to minimize disruption to public traffic; and

(c) Accommodate the construction operations as approved under Section 155.

Submit alternate traffic control plans at least 30 days before its intended use. After the initial traffic control plan is approved, revise it as necessary to accommodate approved changes in the construction schedule. Submit the revised traffic control plan at least 14 days before implementation, unless otherwise approved by the CO.

156.04. Add the following:

Notify Madison County Engineer, Timothy.Bryan@madison-co.com, a minimum of 48 hours before installing the road closure along Gresham Road, Structure 5570-130P.

Use single lane closures on the Natchez Trace Parkway according to Section 635 and as shown in the plans.

Perform single lane closures from 9:00 a.m. to 4:00 p.m. through the Jackson area and Ridgeland area from Milepost 99 to Milepost 115 or as directed by the CO.

Install Portable Changeable Message sign (PCMS) according to Section 635 and as shown in the plans or as directed by the CO, at least 7 days before beginning work.

156.05(f). Add the following:

Ensure that drains and inlets within the project limits are fully functional throughout the duration of the project.

156.07(d). Add the following:

Obtain CO approval for location of employee parking. No employee parking is permitted under trees along the Natchez Trace Parkway.

Restore staging areas to their original condition as directed by the CO.

mailto:Timothy.Bryan@madison-co.com

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156.08. Add the following:

Nighttime operations are permitted upon approval by the CO. Submit request to the CO for approval at least 3 days before any planned nighttime operations.

156.09. Delete the second sentence and substitute the following:

The superintendent may serve as the traffic control supervisor provided the requirements of Subsection 156.03 are met.

Section 203. — REMOVAL OF STRUCTURES AND OBSTRUCTIONS

203.04(c). Add the following after the second sentence of the first paragraph:

On structures, use power-driven hand tools and other hand tools in accordance with Subsection 203.04(e).

203.04. Add the following:

(e) Concrete removal by mechanical impact methods. Furnish equipment that complies with the following:

(1) Use power-driven hand tools for removal of existing concrete with the following restrictions:

(a) Do not use jackhammers heavier than 30 pounds;

(b) Do not operate jackhammers and mechanical chipping tools at an angle in excess of 45 degrees measured from the surface of the concrete; and

(c) Do not use chipping hammers heavier than a nominal 15-pound class to remove concrete from beneath any reinforcing bar.

(2) Use hand tools (hammers and chisels) for removal of final particles of concrete or to achieve the required depth.

203.05(b). Delete the Subsection and substitute the following:

(b) Burn. Burning is prohibited.

203.05(c). Delete the Subsection and substitute the following:

(c) Bury. Burying debris is prohibited.

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Section 414. — ASPHALT PAVEMENT CRACK SEALING AND FILLING

414.04. Add the following:

Do not rout cracks unless directed by the CO.

414.05. Add the following:

Do not clean cracks less than ½-inch wide.

414.06. Add the following:

Do not seal or fill cracks less than ½-inch wide.

414.06(a). Add the following:

Do not begin sealing cracks until the material has been approved for use by the CO. Seal each crack with an approved crack sealant conforming to Subsection 712.01(a)(1).

414.06(b). Delete the first sentence and substitute the following:

Do not begin filling cracks until the material has been approved for use by the CO. Fill each crack with an approved polymer modified mastic asphalt conforming to Subsection 712.01(a)(2).

Section 552. — STRUCTURAL CONCRETE

552.01. Add the following:

This work includes cleaning and replacing joint seals.

552.02. Add the following:

Flexible, high-impact elastomeric concrete 725.20 Galvanized coatings 717.07 Reinforcing steel 709.01 Structural steel 717.01

552.03(g). Add the following:

Furnish class High Early Strength (HES) concrete mixture meeting the requirements of Table 552-1A.

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Table 552-1A Composition of HES Concrete

Class of Concrete

24 Hour Design

Compressive Strength

(psi)

28 Day Design

Compressive Strength

(psi)

Plastic Air Content(1)

(minimum)

Maximum Water/

Cementitious Material

Ratio

Slump(2)

(inches)

Maximum Size

Aggregate (inches)

HES 3000 5000 4.5% 0.44

±1 from Provided Target

(1) Maximum plastic air content is 9%.

(2) Supplier to provide target slump. Maximum slump is 8 inches if approved mix design includes a high range water reducer.

552.04. Delete the second sentence and substitute the following:

Do not use cementitious material containing evidence of moisture contamination.

552.13. Add the following:

(f) Asphaltic plug joint. Install the joint according to the manufacturer’s recommendations and as shown in the plans.

(g) Pre-compressed foam-supported silicone joint seal. Install the joint according to the manufacturer’s recommendations and as shown in the plans.

(1) Submittals. Submit a joint replacement plan at least 30 days before beginning work for approval. Include materials, methods and equipment to be used.

(2) Joint preparation. Prepare the joint headers of concrete by removing and disposing existing joint material according to Section 203. Remove any loose, spalled, deteriorated, and delaminated concrete to sound concrete and repair according to Subsection 552.19.

Clean the joint by abrasive blast cleaning followed by brushing or oil free compressed air, so that it is free from dust, oil, grease, and other foreign materials.

(3) Joint installation. Install the joint seal using methods and procedures recommended by the manufacturer of the system.

(4) Watertight integrity test. Perform a watertight integrity test on the top surface of the joint system no more than 5 days after each joint is completed. For all the joints, perform the watertight integrity test and inspection in the presence of the CO.

Cover the entire joint system with either water ponded to a minimum 0.5-inch depth, or continuously flowing water directly over full plan area of joint for a 30 minute minimum duration. Inspect the underside of the joints for any evidence of dripping water or

J-11 moisture for the 30 minute duration of water application and for 30 minutes after water supply is removed.

The joint system is considered watertight with absolutely no free dripping water or moisture on underdeck surfaces beneath joint. Prior to performing the test, submit for approval a detailed procedure for the watertight integrity test. Provide photographic documentation performing the watertight integrity test. Document date, time, and location of joint inspections and submit the report to the CO.

Repair joint integrity at every location exhibiting free dripping water or moisture identified during the watertight integrity test. Retest and repair until joints pass the watertight integrity test.

552.19. Delete the first sentence of the first paragraph and substitute the following:

For concrete repairs, remove existing or new defective concrete according to Subsection 203.04.

552.19. Add the following after the first paragraph:

When reinforcing steel is exposed and exhibits corrosion, clean the steel until all corrosion is eliminated. Remove concrete cover 2 inches beyond the endpoints of the original corroded portion of the reinforcing steel. Inspect for corrosion. If corrosion is present, clean the reinforcement steel and remove additional cover until no corrosion is encountered. Do not strike the reinforcing steel with heavy blows. Where the bond between existing concrete and reinforcing steel has been compromised, remove the concrete adjacent to the steel to a depth that will permit new concrete to bond to the entire periphery of the exposed steel. Provide a minimum clearance of 1-inch behind the steel.

Remove and replace reinforcing steel that has lost 25 percent or more of its original cross section area with new bars of the same size and shape. Lap the new bars with the existing bars for a length of 30 diameters on each side of the damaged portion if a sufficient length of the existing bar is exposed. Otherwise, connect the new bar by welding it to the existing reinforcement with a 6-inch arc-welded lap on each side of the damaged portion using a double-flare V-groove weld in accordance with the requirements of Section 555, or by mechanically connecting the new bar to the existing in accordance with the requirements of Section 554.

552.19. Delete the second and third paragraphs and substitute the following:

For vertical, overhead, and horizontal concrete repairs that do not extend below reinforcing, apply a bonding coat of an approved epoxy resin adhesive to the surface of the sound existing concrete immediately before placing new concrete against it. Follow the manufacturer’s recommendations for the epoxy resin adhesive. Repair areas using an approved HES concrete or specialty vertical, overhead, and horizontal patching compound placed according to the manufacturer’s recommendations.

For concrete repairs which extend below the reinforcing, apply a scrub coat of the repair material

J-12 immediately before placement of the repair material. Repair areas using Class A(AE) concrete or HES concrete. See

In repair areas larger than 2 square feet with exposed reinforcement, zinc sacrificial anodes which contain at least 80 grams of zinc and comply with ASTM B418, Type II. Securely install anodes on the reinforcement according to ACI Repair Application Procedure (RAP) Bulletin 8, the manufacturer’s recommendations, and comply the following:

(a) In areas larger than 2 square feet and less than 4 square feet, install a pair of anodes on the reinforcement. Install the anodes at opposite sides of the repair and within 4 inches of the edge of the repair.

(b) In areas 4 square feet and larger, install anodes as per Subsection 552.19(a) and an additional pair of anodes for each incremental 4-square foot increase in the repair area.

Install anodes in a grid pattern.

Maintain a minimum concrete cover of 1inch between the anode and the surface.

If a concrete repair material is used which has a chloride permeability less than 2,000 coulombs, encase the anode in a low resistivity (less than 15,000 ohm-cm) mortar bed which extends to the sound substrate concrete and 3 inches beyond the anode on all sides.

If the reinforcing steel is to receive a barrier coating, do not coat the reinforcing steel within 1 inch of the anode and do not apply coating to any surface of the anode or the steel tie wires.

Verify steel-to-steel continuity and anode-to-steel continuity within the repair area with a DC multi-meter. Tie discontinuous reinforcing to continuous reinforcing using heavy steel tie wire and re-tested. The electrical connection is acceptable if the DC resistance measured with the multi-meter is 1.0 ohm or less or the DC potential is 1 mV or less.

Prior to placing the repair material, pre-wet the concrete substrate and the anodes to achieve a saturated surface dry condition, then complete the repair. Do not soak anodes for more than 20 minutes.

552.20. Add the following:

Galvanized coatings will be evaluated under Subsection 106.03.

Structural steel will be evaluated under Section 555.

Section 563. — PAINTING

563.07(b)(3). Add the following:

Do not spray paint bearing devices.

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563.08(a). Add the following:

(4) Bearings. Wash all areas to be painted with pressurized water to remove dirt, surface chalking, loose rust, and contaminants such as chlorides. Maintain a wash water pressure of at least 500 pounds per square inch.

Clean according to SSPC-SP 2 — Hand Tool Cleaning and SSPC-SP 3 — Power Tool Cleaning to remove dirt, loose mill scale, loose rust, and paint that is not firmly bonded to the underlying surface. Clean small areas that show pinhole corrosion or minor scratches. The same day hand- or power-tool cleaning is performed, remove dirt, dust, and other contaminants from the surface with solvent-cleaning methods according to SSPC-SP 1 — Solvent Cleaning, and spot paint all bare steel areas with the first coat of paint. If the cleaned surfaces rust or become contaminated before painting, repeat solvent cleaning.

Before painting, clean surfaces and staging areas with a vacuum or other approved methods.

Apply paint to the entire system.

563.08(b)(2)(a). Delete the first sentence and substitute the following:

(a) Select a test area at least 1 square foot in condition representative of the condition of the structure.

563.08(b). Add the following:

(3) Bearings. Furnish a paint system that conforms to the requirements shown in Table 563-2 for less aggressive environments, Paint System 6. Submit a brown color sample to the CO for approval. Follow the requirements of Subsection 563.08(b)(2) for paint application.

Section 605. — UNDERDRAINS, SHEET DRAINS, AND

PAVEMENT EDGE DRAINS

605.01. Add the following:

This work includes the cleaning of weep holes and installation of weep hole filters weep holes.

605.03. Add the following:

Submit weep hole filters for use in weep holes for approval to the CO. Clean weep holes prior to weep hole filter installation. Install approved weep hole filters at locations designated by the CO and in accordance with manufacturer’s recommendations.

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605.07. Add the following:

Cleaning of weep holes and installation of weep hole filters will be evaluated under Subsections

106.02 and 106.04.

Section 635. — TEMPORARY TRAFFIC CONTROL

635.04(d). Add the following:

Remove or completely cover unnecessary signs in accordance with Subsection 635.07.

635.04(g). Add the following:

If “marginal” or “unacceptable” devices are not corrected in a timely manner, the CO will provide written notification of those traffic control items not in compliance with the contract.

If the Contractor fails to bring the specified items into compliance within a 24-hour period, the CO may assess a daily reduction in payment to the Contractor of $1800 per day. The CO may continue to assess the daily reduction in payment for each additional 24-hour period until the items are corrected. This reduction in payment will be subtracted from the Contractor’s progress payments and will be unrecoverable. Use of this reduction in payment does not waive the CO’s right to suspend the work in whole or in part according to Subsection 108.05.

635.04(i). Add the following:

Submit a certification indicating that the devices are crashworthy as defined in Subsection 101.04.

635.04. Add the following:

(j) As a minimum, furnish and install the following temporary traffic control devices:

(1) Construction signing;

(2) Type 3 barricades;

(3) Drums;

(4) Cones;

(5) Type B warning lights;

(6) Flaggers;

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(7) Portable Changeable Message Sign (PCMS); and

(8) Other miscellaneous temporary traffic control devices that may be required by the

CO.

635.07. Delete the third paragraph and substitute the following:

Remove or completely cover unnecessary signs, or signs that conflict with the construction signing or the approved traffic control plan. Cover signs that are not removed so that no part of the covered sign is visible to traffic. Use sign covers meeting the following requirements:

(a) Large enough to completely cover the sign;

(b) Easy to attach to and remove from the sign without damaging the sign face. Do not use adhesives, glues, tapes, or mechanical fasteners that mar face of the sign;

(c) Black, non-reflective, and opaque;

(d) Made of plywood (minimum of 3/8-inches thick), aluminum (minimum of 0.040 inches thick), or other acceptable materials that will not be lifted, bent, or damaged by wind as approved by the CO; and

(e) Durable enough to resist deterioration due to weathering and atmospheric conditions for the duration of the project.

635.07. Add the following:

Furnish 16-inch (minimum) square flags that are fluorescent orange or fluorescent red-orange in color. Mount flags on top of signs in accordance with the MUTCD.

Section 712. — JOINT MATERIAL

712.01. Add the following:

(h) Asphaltic plug joint for bridges. Conform to ASTM D6297.

(i) Pre-compressed foam-supported silicone joint seal. Furnish a joint system comprised of three components: cellular polyurethane foam impregnated with hydrophobic 100% acrylic, water-based emulsion, factory coated with highway-grade, fuel resistant silicone;

field-applied epoxy adhesive primer; and field-injected silicone sealant bands.

(1) Furnish impregnated foam conforming to Table 712-2:

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Table 712-2 Property Test Method Minimum Requirement

Base material - Cellular, high density, polyurethane foam

Tensile strength ASTM D3574 18 psi UV / Moisture resistance ASTM G155-00A No changes - 2000 hours, Pass

Density ASTM D545 4 lb./cu. ft.

Elongation ASTM D3574 125%

Temperature service range ASTM C711 -40 °F to 185 °F

(2) Furnish epoxy adhesive conforming to Table 712-3:

Table 712-3 Property Test Method Minimum Requirement

Tensile Strength ASTM D638 3500 psi Shear Strength ASTM D732 3000 psi Bond Strength ASTM D882 2500 psi

Compressive Strength ASTM D695 8000 psi

(3) Furnish silicone sealant conforming to Table 712-4:

Table 712-4 Property Test Method Requirement

Color Visual Black Movement capability ASTM C719 ± 50%

Elongation ASTM D412 > 600% Tensile Strength ASTM D412 ≥ 100 psi

Section 718. — TRAFFIC SIGNING AND MARKING MATERIAL

718.01. Add the following:

For a list of acceptable manufacturers and products, refer to the Sheeting Guide found at http://safety.fhwa.dot.gov/roadway_dept/night_visib/sign_visib/sheetguide/.

http://safety.fhwa.dot.gov/roadway_dept/night_visib/sign_visib/sheetguide/

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Section 725. — MISCELLANEOUS MATERIALS

Add the following after Subsection 725.18:

725.19 Flexible, High-Impact Elastomeric Concrete. Furnish flexible, high-impact elastomeric concrete that allows live traffic after two hours from final pour and conforming to Table 725-1.

Table 725-1 Flexible, High-Impact Elastomeric Concrete

Tests Procedure Minimum Requirement

Adhesion (Primed Concrete) ASTM D7234 400 psi

Tensile Strength ASTM D412 630 psi

Compressive Strength ASTM D695 3000 psi

Compressive Modulus ASTM D695 11 ksi

Impact Testing-Ball Drop (1) ASTM D3029 No Failure at 69 °F and -4 °F

Hardness (Shore D) ASTM D2240 50

(1) 1-pound steel ball dropped onto a ⅜-inch thick by 2¾-inch diameter disk from 17 feet.