6-Attachment 5 - Special Contract Reqiurements, FP-14, U.S. Customary Units Seed Farm Road Project.pdf

Seed Farm Road Project Special Contract Requirements

Section 103 – SCOPE OF WORK

103.05 Partnering.

Delete the subsection in its entirety.

Section 104 – CONTROL OF WORK

104.01 Authority of the Contracting Officer (CO). Add:

Within the Gila River Indian Community Governor has the final authority to approve the contracts. However, Gila River Indian Community Department of Transportation (GRIC-DOT) will act for the Contracting Officer in administering his/her contract except for the approval of the contract.

104.08 Load Restrictions. Add:

No loads shall be hauled over aggregate base courses or bituminous pavements which exceed legal load limits for hauling units as prescribed within the jurisdiction of the local State

Department of Transportation (Highways) ARIZONA REVISED STATUTES, TITLE 28, SECTION 1009.01 or local Tribal Ordinance.

Section 105 – CONTROL OF MATERIAL

105.02 Material Sources.

105.02(a) Government-furnished sources

Delete the second paragraph.

105.05(a) Use of Material Found In Work.

Delete the sentence and substitute the following:

(a) Take possession of the material.

Section 106 – ACCEPTANCE OF WORK

106.03 Certification. Add:

Include the following with all certifications:

a. Contract Number

b. Specification Requirements

106.04 Measured or Tested Conformance.

Add:

Results from inspection or testing for acceptance of work incorporated in the project shall have values within the specified tolerances or specification limits.

Section 107 – LEGAL RELATIONS AND RESPONSIBILITY TO THE PUBLIC

107.08 Sanitation, Health, and Safety. Add:

Contractor shall have a Designated Safety Officer Present at the job site at all times during construction. Contractor shall identify the Designated Project Safety Officer at the time of

Preconstruction Meeting.

Section 108 – PROSECUTION AND PROGRESS

108.01 Commencement, Prosecution, and Completion of Work.

In the second paragraph, second sentence, delete “Seven days before the preconstruction conference,” and insert “Ten days after the award of the Contract,”.

Section 109 – MEASUREMENT AND PAYMENT

109.02 Measurement Terms and Definitions

Delete (b) and insert (b) Contingent sum. Perform the work only when authorized by written order. The work will be measured and paid for at agreed unit prices, lump sum prices or force account as established in the order authorizing the work. When the unit is designated “Lump

Sum”, the quantity is designated as “LS”.

Delete (d) Cubic foot and Cubic yard. And insert (c) Cubic yard (yd³, Cu.yd or CY). 27 cubic feet.

Delete (i) Linear foot. And insert (i) Linear foot (LF).

Delete (j) Lump sum. And insert (j) Lump sum (LS).

Delete (o) Pound. And insert (o) Pound (lb.).

Delete (p) Square foot and Square yard. And insert (p) Square foot (ft², Sq.ft or SF) and

Square yard (yd², Sq.yd or SY).

109.06 Pricing of Adjustments.

Add the following:

(2) Overhead.

Delete the first paragraph and substitute the following:

The overhead factor shall be applied to the direct costs. The Contractor shall be limited to 10% overhead when he and/or his subcontractors perform work for that portion performed with their respective forces.

(3) Profit.

Delete the first paragraph.

109.08 Progress Payments.

Delete (a), (b), (c), (d) and (e) and insert the following:

Progress payments will be made on the first of each month as the work proceeds except no payment will be made for less than $5,000. Noncompliance with or the failure to provide timely submittal of contract requirements will be justification of withholding of progress payments or portions thereof.

DIVISION 150 – PROJECT REQUIREMENTS Section 151 – MOBILIZATION

151.03 Payment

After the sentence “Progress payments for mobilization lump sum will be paid as follows:” delete

(a), (b), (c) and (d) and replace with the following:

Payment will be made under:

Pay Item Pay Unit

15101 Mobilization L.S.

Section 152 – CONSTRUCTION SURVEY AND STAKING

152.04 General. Add:

The surveying and staking, stake marking, referencing, grade and structure controls shall be in accordance with the Slope Staking Examples in the project plans.

152.05 Survey and Staking Requirements.

(a) Control points. Add:

Reference all control points with 5/8” diameter x 24” rebar with aluminum or plastic caps.

(d) Slope and reference stakes (1) AMG method. Add:

The Contractor shall set slope stakes on 100 foot stations along tangents and at 50 foot increments along curves and transitions. Slope stakes shall be set at right angles to roadway centerlines. Slope stakes for roadway and drainage structures shall be set and marked as shown on the Slope Staking

Examples in the project plans.

All slope stakes shall be sprayed with one coat of fluorescent red, pink or orange paint prior to marking the slope stake data on the slope stake.

(f) Grade finishing stakes. Add:

The Contractor shall set blue-top hubs, 2”x 2” x 6 inches, on centerline and shoulders for subgrade, special subbase and aggregate base course. Vertical tolerance for these hubs shall be ±

0.03 feet (see Table 152-1).

152.07 Measurement.

Delete the text under this subsection and substitute the following:

Construction survey and staking will be measured by the lump sum.

Section 155 – SCHEDULES FOR CONSTRUCTION CONTRACTS

155.09 Measurement.

Delete this subsection and replace with the following:

The Construction schedule will not be measured directly for payment but will be considered a subsidiary obligation of the Contract.

Section 156 – PUBLIC TRAFFIC

156.03 Accommodating Traffic During Work.

Add the following paragraph:

The Traffic Control Plan must be submitted for acceptance, accepted, and implemented before any other work can commence at the project site.

DIVISION 200 – EARTHWORK

Section 201 – CLEARING AND GRUBBING

201.01 Description.

Delete the text of this subsection and substitute the following: This work shall consist of clearing and grubbing the construction limits.

201.04 Clearing.

Within this subsection delete the words “clearing limits” and insert the words “construction limits”.

Section 204 – EXCAVATION AND EMBANKMENT

204.06 Roadway Excavation

(b) Delete “6 inches” and insert “8 inches”

Add the following subsection:

“(c) Existing unpaved roadway scarify the existing unpaved roadway to a minimum depth of 8 inches within the roadbed limits. Compact the scarified material according to Subsection 204.11.”

204.09 Preparing Foundation for Embankment Construction.

(d) Delete “1V:3H” and insert “3H:1V”.

204.10 Embankment Construction.

(a) General.

In the third paragraph, last sentence, delete “1V:1-3/4H” and insert “1-3/4H:1V”.

(b) Embankment within the roadway prism.

Delete “12 inches” and insert “6 inches”.

204.13(d) Finishing. Add:

Blue-top hubs, 2”x 2” x 6”, shall be set on 100 foot stations along tangents and shall be set on 50 foot increments along curves and transitions. Hubs shall be set on centerline and roadway shoulders.

Vertical tolerance for these hubs will be ± 0.03 feet.

204.14 Disposal of Unsuitable or Excess Material.

Delete the first sentence and substitute the following:

All unsuitable or excess material as well as sediment removed from erosion control measures shall be evenly distributed along embankments (within the right of way limits) as designated by the GRIC-DOT or disposed of at an approved public land fill.

204.15 Acceptance. Add:

Compaction tests shall be performed on the following:

1. Compacted embankment on each 6 inch lift or each 500 cubic yards whichever is less.

2. Compacted original ground in areas where embankment height is less than 3 feet. Density tests shall be taken for every 500 feet of roadway.

3. Compacted backfill for pipe culverts on each 6 inch lift on each side of culvert. For pipe

(CMP) extensions located outside the traveled way three (3) density tests shall be taken located at the bottom, center, and top of the pipe.

In Table 204-1 for Unclassified borrow, Select borrow and Earth embankment under “Sampling

Frequency” for “Compaction”, delete “1 for each 3500 square yards” and insert “1 for each 500 cubic yards”.

In Table 204-1 for Unclassified borrow, Select borrow and Earth embankment under “Test

Methods Specifications” for “Compaction”, delete “or other approved procedures” and insert

“direct transmission method”.

204.16 Measurement.

(a) Roadway excavation.

Delete the first paragraph and replace with the following:

Roadway excavation will be paid for as the contract quantity shown in the bid schedule. The contract quantity will be adjusted for authorized changes that affect the quantity. If there is evidence that the original contract quantity is incorrect, submit calculations and drawings indicating where the quantity needs to be adjusted.

If the quantity is adjusted, items (1) and (2) of this subsection shall apply when calculating the adjusted volumes.

Add the following to this subsection:

Cut-off wall excavation will be measured and paid for as roadway excavation.

(g) Channel excavation. Channel excavation shall be measured by the cubic yard.

Ditch blocks and/or dikes will not be measured directly for payment, but will be considered a subsidiary obligation of the Contractor under this section. Borrow pit restoration shall be carried out in accordance with Subsections 105.03 and 625. Pit restoration will not be measured directly for payment but will be considered a subsidiary obligation of the contract.

204.17 Payment. Add:

Payment for Item 20401, Roadway excavation, is limited to 10% of the plan quantity of excavation in the cut until the slope rounding in that cut is completed.

Payment will be made under:

Pay Item Pay Unit

20403 Unclassified borrow CY

Section 209 – STRUCTURE EXCAVATION AND BACKFILL

209.03 General. Add:

Where rock, hardpan, or other unyielding material is encountered for pipe culvert foundation grade, the material shall be removed below the foundation grade for a depth of at least 12 inches.

The width of the excavation shall be at least 18 inches greater than the horizontal outside diameter of the pipe.

209.11 Acceptance. Add.

Compaction tests shall be performed on the compacted embankment for pipe culverts on each 6 inch lift on each side of culvert. For pipe (CMP) extensions located outside the traveled way three

(3) density tests shall be taken located at the bottom, center, and top of the pipe.

In Table 209-1 under “Sampling frequency”, after the word “lift”, add the superscript “(4)”. In addition, add a note below the table which states “(4) A lift is equal to a horizontal layer of backfill not to exceed 6 inches in depth”.

209.12 Measurement and Payment.

No direct measurement or payment will be made for structure excavation and backfill but will be considered in the price bid for the item in which it is incorporated.

DIVISION 300 – AGGREGATE COURSES

Section 301 – UNTREATED AGGREGATE COURSES

301.01 Description.

Add the following:

Aggregate base grading special shall conform to the grading requirements shown below (the table shown below replaces Table 703-2, Subsection 703.05) and in accordance with Subsection

703.05.

Sieve Designation Percent Passing

1 inch 100

¾ inch 70 - 100

No. 4 30 - 65

No. 40 5 - 25

No. 200 5 - 10

That portion of the material passing the No. 40 sieve shall have a plasticity index (as per

AASHTO T-89 and T-90) of not over 5.

301.05 Compacting.

In the third paragraph, first sentence, replace “95” with “100”.

301.08 Acceptance.

Delete the text of this subsection and substitute the following:

Untreated aggregate course gradation, construction, and other aggregate quality properties will be accepted under Subsection 106.04.

The point of acceptance sampling for testing with the exception of density shall be from the windrow of the roadbed after processing. Gradation, liquid limit, plastic index and density tests shall be performed on each 1000 tons placed or daily if less than 1000 tons.

Density acceptance tests shall be performed on each in-place compacted layer.

301.09 Measurement.

Delete the second and third paragraphs and insert the following:

Measure untreated aggregate courses by the Ton.

301.10 Payment.

Delete the first sentence.

Add Payment will be made under:

30101 Aggregate base, grading special Ton

DIVISION 400 – ASPHALT PAVEMENTS AND SURFACE TREATMENTS

Section 401 – ASPHALT CONCRETE PAVEMENT BY GYRATORY MIX DESIGN

METHOD

Section 401.16 – Pavement Roughness

Designated Pavement Roughness Type is Type III.

Section 407 – CHIP SEAL

407.04 Composition.

(a) Aggregate Samples. Add: Cover aggregate gradations shall be in accordance with the grading special requirements as shown below:

First Course Sieve No. Percent Passing

½ inch 100

⅜ inch 40 – 70

No. 4 0 – 15

No. 8 0 – 2

Second Course Sieve No. Percent Passing

⅜ inch 100

No. 4 10 – 30

No. 8 0 – 5

No. 200 0 – 0.5

Aggregates will be sampled from hauling units and tested for acceptance in lots equal to the number of tons placed each production day. Only those sieves designated in the specified grading will be considered for purpose of acceptance. Normally, five (5) acceptance samples will be taken for each day’s production for gradation, except, less than five (5) acceptance samples may be taken when inclement weather, equipment breakdown, or for other reasons production stoppage occurs. For small projects and low production days ranging from 10 tons to 400 tons, a minimum of three (3) acceptance samples will be taken.

Blotter material shall conform to the grading requirements shown below and to the quality requirements of Subsection 703.13.

Sieve Designation Percent Passing by Weight

⅜ inch 100

No. 16 40 – 80

No. 200 0 – 10

(b) Asphalt samples. Add:

The emulsified asphalt material shall be sampled daily and tested for percent of residue by evaporation. For a pay factor of 1.0 the percent of residue by evaporation in the concentrated form shall be (a) 57% or greater for SS-1h, (b) 60% or greater for emulsified recycling agent and (c) 63% or greater for CRS-2 material. A lot is defined as one day’s application.

One of the samples of the CRS-2 (emulsified asphalt) material sampled during the project will be tested for all requirements listed in Table 1 of AASHTO M 208.

One of the samples of the SS-1h (emulsified asphalt) material sampled during the project will be tested for all requirements listed in Table 1 of AASHTO M 140.

407.06 Surface Preparation. Add:

The Contractor shall be responsible for removing all vegetation, dirt, and all other foreign material from roadway surface prior to seal coating and/or applying a final fog seal.

407.07 Weather Limitations. Add:

The temperature and surfaces to be treated shall be approved by the COR prior to the application of a seal, fog or tack coat.

Materials for the bituminous treatment shall not be applied prior to MAY 15 nor shall they be applied to the roadway after OCTOBER 15 unless directed by the COR.

407.09 Asphalt Application. Add:

Application temperatures of bituminous materials shall conform to Subsection 702.04 and shall be within 45ºF (8ºC) of the application temperature established by the COR. Bituminous material for prime coats shall be as described in Section 411.

Bituminous material for seal coating shall be emulsified asphalt, Grade CRS-2 with an application rate of 0.30 to 0.50 gallons per square yard.

Bituminous material for the “Final Fog Seal” shall be emulsified asphalt, grade SS-1h with an application rate of 0.05 to 0.15 gallons per square yard diluted 1:1. The fog seal must be applied within two days after the asphalt surface treatment has been completed. The CO may change the grade of the emulsified asphalt without any change in unit price.

All joints shall be made by placing building paper over the end of the previous application and the joining application shall start on the building paper. Once the application process has progressed beyond the paper, the paper shall be removed and properly disposed of.

Unused asphalt material shall be disposed of only at an approved landfill site and copies of receipts for the disposal shall be delivered to the COR prior to final inspection.

407.12 Double Course Chip Seal

Add the following to this Subsection:

The cover aggregate shall be applied at a rate of 18 to 22 pounds per square yard for multiple courses.

When more than one layer of bituminous material and aggregate is specified, the first layer shall be allowed to cure a minimum of 24 hours. The first course must be completed prior to applying the second course. After at least 12 hours and prior to constructing the second layer of bituminous material and aggregate, the first layer shall be lightly broomed (and if required, an air blower shall also be used) to remove loose chips and dust from the previous layer. The procedures used in applying the first layer shall then be used to apply the second layer of bituminous material and aggregate.

The application rates of bituminous material and aggregate specified in the contract are approximate and the exact rate to be used will be specified by the COR.

407.13 Acceptance.

Delete this subsection and insert the following:

Aggregate for surface treatments will be evaluated under Subsections 106.02 and 106.04.

Construction of asphalt surface treatments will be evaluated under Subsections 106.02 and 106.04

Aggregate gradation for surface treatments will be evaluated as follows: If the arithmetic mean of the tested samples meets the gradation requirement of the specification, the aggregate will be assigned a pay factor of 1.00. If the arithmetic mean of the samples tested fails to meet the gradation specifications on any sieve a pay factor of less than 1.00 will be assigned as described below.

Aggregate that is not assigned a pay factor of 1.00 will be considered to be in substantial compliance provided (a) that the average of each specified sieve fraction does not exceed the specifications band by more than 2% for all sieves except the No. 200 sieve which shall not exceed

1% and (b) no single value is more than 5% beyond the specification band except for the No. 200 sieve which shall not exceed 2%. Aggregates that are in substantial compliance (see beginning of paragraph) may be accepted at an adjusted unit price based on a pay factor of 0.85.

The asphalt surface treatment will not be in compliance under the acceptance provisions if the aggregate pay factor is less than 0.85 (not in substantial compliance) or the emulsified or cut back asphalt do not meet specifications. If the CO accepts the asphalt surface treatment, it will be paid for at a pay factor of 0.50. The CO may also reject the asphalt surface treatment.

407.14 Measurement.

Delete this subsection and insert the following:

Emulsified Asphalt, Grade CRS-2, shall be measured by the Ton and in the concentrated form.

Emulsified Asphalt, Grade SS-1h, shall be measured by the Ton and in the diluted form. Surface preparation, blotter sand and all materials, equipment and labor required to apply the blotter sand will not be measured directly for payment, but will be considered a subsidiary obligation of the

Contract.

The cover aggregate shall be measured for payment by the ton and shall be measured in the hauling vehicle immediately prior to the placement on the roadway to receive the surface treatment.

The cover aggregate must be weighed and the weigh tickets delivered to the COR prior to application.

If the Contractor chooses to stockpile the cover aggregate, weigh tickets used to measure project quantities of the subject material shall be from trucks which have been loaded from the stockpile of cover aggregate, weighed on the mobile scale (see Subsection

409.04 Equipment (e) Other equipment, and delivered directly to the project roadway for placement.

Any contamination of the stockpiled cover aggregate during storage or from reloading operations shall be cause for rejection at no expense to the Government. Stockpiles or left-over stockpiles of cover aggregate will not be measured for payment.

The Contractor shall be responsible for removing and cleaning up the stockpile site to the sites original condition. This work will not be measured directly for payment; however this shall be considered a subsidiary obligation of the contract.

All equipment, materials and labor required to locate manhole covers, water valve/meter covers, survey monument covers and any other incidental utility covers/markers; and covering these items to protect them during the application of the surface treatment and final fog seal will not be measured directly for payment but will be considered a subsidiary obligation of the contract.

DIVISION 550 BRIDGE CONSTRUCTION Section 554 – REINFORCING STEEL

554.03 Order Lists. Add:

The Contractor shall furnish three copies of all order lists and bending diagrams for approval 21 days before production.

554.08 Placing and Fastening.

Delete the second sentence of the sixth paragraph beginning with “Tie bridge deck . . .” and substitute the following:

For all concrete the reinforcing steel shall be tied together at all intersections except where the spacing is less than 12 inches in both directions, in which case alternate intersections may be tied securely to prevent displacement.

554.09 Splices. Add:

If mechanical couplers are used they shall be field tested prior to use.

554.12 Payment.

No direct measurement or payment will be made for reinforcing steel but will be considered in the price bid for the item in which it is incorporated.

Section 562 – TEMPORARY WORKS

562.08 Removal. Add:

The test cylinders used for determining the compressive strength of the concrete for the removal of the forms and false work shall be cured under the same conditions as the structure.

Section 625 – TURF ESTABLISHMENT

625.01 Description.

Delete the first sentence and insert the following:

This work shall consist of soil preparation, watering, fertilizing, seeding and mulching fill slopes, cut slopes (including rounded cut slopes), material pits (i.e., borrow, cover and base aggregate and M.A.), roadway obliteration areas, and any other disturbed areas as directed by the CO.

Seeding and mulching method are designated as dry or hydraulic.

625.02 Materials. Add: Table 625-1

Table 625-1

Application Rates for Turf Establishment

MATERIALS APPLICATION RATE [lb/acre (kg/ha)]

SEED

Sand Verbena (Abronia villosa)

Purple Threeawn (Aristida purpurea)

Desrt Saltbush (Atriplex polycarpa)

Desrt Marigold (Baileya multiradiata)

Needle Grama (Bouteloua aristidoides)

Cane Beardgrass (Bothriochloa barbinodis)

Desert Saltgrass (Distichlis stricta)

Brittlebush (Encelia farinosa)

Mexican Poppy (Eschscholtzia Mexicana)

Gordon’s Bladderpod (Lesquerella gordonii)

Desert Lupine (Lupinus sparsiflorus) Arroyo

Lupine (Lupinous succulentus)

Arizona Desert Bluebell (Phacelia crenulata)

Desert Indian Wheat (Plantago ovata) Desert

Chia (Salvia columbariae)

Desert globemallow (Sphaeralcea ambigua)

Alkali Sacaton (Sporobolus airoides)

Sand Dropseed (Sporobolus cryptandrus)

0.75

0.25

1.5

0.25

1.5

1.5

0.5

FERTILIZER – Ammonium

Phosphate 16-20-0

200 lbs. per acre (225 kg per ha)

MULCH – straw

4,000 lbs. per acre (4500 kg per ha)

PLS – Pure live seed

*See Below

*Application rates of seed as specified are for Pure Live Seed (PLS). PLS is determined by multiplying the sum of the germination and hard or dormant seed by the purity.

Weed content shall not exceed 0.5 percent.

625.03 General.

Delete the first sentence and insert the following:

Establish turf in accordance with the conditions and times designated in the Storm Water

Pollution Prevention Plan (SWPPP) or as directed by the CO.

625.04 Preparing Seedbed. Add:

Delete the second paragraph and inset the following:

(a) Seeding operations shall not be performed on undisturbed soil outside the cleaning and grubbing limits of the project or on steep rock cuts.

(b) All areas to be seeded shall have the fertilizer (see table 625-1) uniformly applied to the surface at the rate specified. All slopes flatter than 3:1 shall have the fertilizer tilled into the top 3 inches of the surface. Tillage shall be accomplished with a ripper bar, disc harrowing, chiseling tool or with other equipment which will provide thorough soil cultivation and an even mixture of fertilizer into the soil.

Tillage shall be performed across the slope (i.e., directional along the contours of the slope) when practical. No work shall be done when the moisture content of the soil is unfavorable.

625.05 Watering.

Delete the following portion of this sentence: “and maintain the moisture until 10 days after germination.”

625.07(a) Seeding (Dry method).

Delete the second sentence and add the following:

After the seed bed has been prepared (See Subsection 625.04) and the tillage is completed and accepted by the Project COR, seed shall be planted by drill, except on slopes too steep or rocky seed may be broadcast provided that it is covered by dragging.

Seed shall be planted approximately ¼ inch deep, with a maximum depth of ⅝ inch. The distance between the drilled furrows shall not be more than 8 inches. If the furrow openers on the drill exceed 8 inches, the area shall be drilled twice. Seeding shall be done with grass seeding equipment with double disc openers, depth bands, packer wheels or drag chains, rate control attachments, seed boxes with agitators and separate boxes for small seed. Seed of different sizes shall be sowed from at least two separate boxes adjusted or set to provide the planting rate as specified.

625.08 Mulching.

(a) Dry method. Add:

Mulch shall be immediately affixed by crimping and tacking. The Project COR shall determine which areas are not conducive to anchoring by crimping and will direct the Contractor to anchor such mulch by tacking only.

Within 24 hours after each area is planted, straw mulch shall be uniformly applied at the rate of approximately 4000 pounds per acre.

Anchorage by crimping: Mulch shall be anchored into the soil with a heavy disc with flat, serrated discs at least ¼ inch thick having dull edges and spaced no more than 10 inches apart.

Mulch shall be anchored to a depth of at least 2 inches and shall not be covered with an excessive amount of soil. Anchoring operations shall be across the slopes where practical with no more than two passes of the disc.

Anchorage by tacking: Mulch shall be anchored by tacking using an emulsified asphalt or an equivalent product, uniformly applied at a rate of approximately 500 gallons per acre. If an equivalent tacking material is being proposed for use, it must be approved by the WRO Roads

Environmental Specialist prior to its use. The Contractor shall submit his request for the use of an equivalent product 21 days before the intended application date.

625.11 Measurement

Delete the second and third paragraphs.

625.12 Payment. Add:

The Item for seeding includes all of the materials shown in Table 625-1 (seed, fertilizer, mulch, lime) and other materials and labor needed for turf establishment (seed-bed preparation, tack, etc.).

At least 75% of the applied tack and straw mulch shall remain in place for a minimum period of

30 days after the application. Any areas that have less than 75% of the tack or straw mulch remaining, after any application, shall be re-seeded, re-mulched, and re- tacked at no additional cost to the Government.

Payment will be made under:

62501 Seeding, mulching, fertilizing, dry method Acre

Section 633 – PERMANENT TRAFFIC CONTROL

633.01 Description

Add the following: “Sign panels shall be aluminum. Posts shall be steel”.

633.03 General. Add:

For street sign installations, the top most street sign shall be for the street that is perpendicular or in front of the driver and the lower street sign shall be for the street that the driver is traveling on.

Section 634 – PERMANENT PAVEMENT MARKINGS

634.01 Description

Delete the first paragraph beginning with “This work consists . . .” and substitute with the following:

The work under this section shall consist of cleaning, preparing the pavement surface and establishing control points at 50 foot intervals for striping the roadway centerline and placing raised pavement markers on the roadway centerline and shoulders. No striping will be permitted until the control points are established. Do not place raised pavement markers in dip sections. The project COR will delineate the area of the dip sections prior to the installation of the raised pavement markers. Work shall also include furnishing all materials, equipment, tools and labor required to place temporary and permanent pavement markings/markers specified at the locations and in accordance with the plans and specifications.

634.12 Acceptance. Add:

a) When more than five (5) percent but less than ten (10) percent of the striping varies more than

½ inch but less than 1 inch from the centerline of the marking established by the Contractor, a pay factor of 0.75 will be applied.

Striping tolerance that fails the above and is allowed to remain in place will be accepted at a reduced contract unit price based on a pay factor of 0.50. The CO may also reject the striping.

If the CO rejects the striping, the Contractor shall remove the striping in accordance with

Subsection 635.13 and re-stripe the project at no additional cost to the Government.

b) When Paint and Reflective beads are not applied at the minimum rates specified in FP-14, the unit price will be reduced by the sum of the percentages the paint and beads are deficient. Paint and beads will not be accepted if they are applied at less than 70% of the contract requirements.

c) Paint markings shall not be applied to the newly overlaid bituminous surfaces and bituminous treated surfaces for a minimum of three weeks after the surfacing work is completed.

634.14 Payment Add:

When a pay factor of less than 1.0 is determined as per Subsection 634.13, payment for sections involved will be made at a reduced price arrived at by reducing the length of traffic markings by the factor prior to multiplying by the contract price.

Section 635 – TEMPORARY TRAFFIC CONTROL

635.01 Description Add:

Three copies of a traffic control plan that is in accordance with the MUTCD will be submitted for each item impacting traffic 10 days after award of this contract for review. The plan will include the maximum spacing distance that the Contractor is proposing to use when placing channeling devices. If the traffic control plan does not conform with the MUTCD requirements because the Contractor changed his operations and/or special or hazardous conditions arise, the

COR shall direct the Contractor to revise his plan and temporary traffic control devices and services immediately to conform with the MUTCD.

The use of detours will be allowed whenever the Contractor’s operation and field conditions warrant. Prior approval of the detours must be given before work starts. The detours shall be located on the upstream side of the roadway. The installation of pipe will be limited to a one day operation whenever possible. The work area will be left in a safe condition possible, with no detours remaining overnight without prior approval by the COR.

All detours left in place for more than one week shall have at least 4 inches (100 mm) of aggregate base with a bituminous surface using a cut-back asphalt when the existing surface is a bituminous treatment on either side of the detour.

In the first sentence delete the words “as ordered”.

635.14 Temporary Pavement Markings and Delineation. Add:

The Contractor shall place the temporary traffic marking on all asphalt surface treatments and/or pavement placed before allowing two way traffic.

635.26 Measurement.

Delete this subsection and substitute the following:

Temporary traffic control will be measured by the lump sum and no measurement for payment will be made for furnishing, installing, and maintaining all traffic control devices and services required for the control and protection of traffic.

DIVISION 700 MATERIAL

Section 701 – CEMENT. (a) Portland Cement. Delete the sentence and substitute the following:

Conform to AASHTO M85, type II, and the low-alkali cement criteria of Table 2- Optional

Chemical Requirements.

Section 702 – ASPHALT MATERIAL

702.05 Antistrip Additive.

Delete (c) and replace with the following:

(c) Type 3. Furnish lime conforming to Subsection 725.03 (a).

Section 703 – AGGREGATE

703.05 Subbase, Base, and Surface Course Aggregate.

(a) General.

(1) Los Angeles abrasion, AASHTO T 96 Delete “35% max” and insert “40% max”.

(2) Delete.

(5) Fractured Faces, Delete “70% min.” and insert the following:

Not Less than 65% by weight of the particles retained on the No. 4 (4.75 mm) sieve shall have at least one manufactured face. Minimum sample size shall be 25 pounds (kg).

(b) Subbase or base aggregate.

(1) Gradation, Delete “Table 703-1” and insert “In the Special Contract Requirements”.

Add:

(3) Plasticity Index, AASHTO T 90, 6 max.

(c) Surface course aggregate.

(1) Gradation and plasticity index, AASHTO T 90, Delete “Table 703-1” and insert the following:

The Gradation will be designated in the Special Contract Requirements and the Plasticity Index shall be non-plastic.

Add (4) fractured faces shall be not less than 85% by weight of the particles retained on the No.

4 (4.75 mm) sieve and shall have at least one manufactured face.

703.07 Asphalt Concrete Aggregate.

(f) Gradation. Delete “Table 703-3” and insert “Gradation will be designated in the Special

Contract Requirements.

703.09 Chip Seal Aggregate.

(a) Gradation Delete “Table 703-5” and insert “Gradation will be designated in the Special

Contract Requirements”.

Delete (d) and replace with the following:

(d) Fractured faces – not less than 85% by weight of the particles retained on the No. 4 sieve shall have at least one manufactured face.

Section 704 – SOIL

704.01 Soil and Soil-aggregate Materials. Table 704-1

Delete “3” for (Maximum partical size, in) under Common Backfill and Structural Backfill, and insert “2”

Add “15 maximum” for (Plasticity index, AASHTO T 90) under Common fill.

Section 718 – TRAFFIC SIGNING AND MARKING MATERIAL

718.01 Retroreflective Sheeting. Add:

Apply graffiti resistant overlay film to the retroreflective sheeting. Use Scotchlite Series 1150, Nikkalite F-Cal, or equivalent.