NFSR_105_Section_C_Exhibit_4_Special_Project_Specifications_Phase_2.pdf

Section C

Exhibit 4 – Special Project Specifications

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SPECIAL PROVISIONS

FOR

FOREST ROAD 105 IMPROVEMENTS

PREPARED FOR:

APACHE-SITGREAVES NATIONAL FOREST

(BLACK MESA DISTRICT)

PREPARED BY:

JEFF SWAN, PE, RLS, CFM

February 21, 2017

WOODSON ENGINEERING & SURVEYING, INC.

Special Provisions Forest Road 105 Improvements

Apache-Sitgreaves National Forest (Black Mesa District)

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SPECIAL PROVISIONS

FOREST ROAD 105 IMPROVEMENTS

PREPARED BY WOODSON ENGINEERING & SURVEYING, INC.

APACHE-SITGREAVES NATIONAL FOREST

(BLACK MESA DISTRICT)

INTRODUCTION

Modifications to the current edition of the MAG Specifications, Arizona Department of Transportation Standard Specifications (ADOT), Manual on Uniform Traffic Control Devices (MUTCD), USDA Forest Service-Sign and Poster Guidelines for the Forest Service, and to the Preceding General Provisions are made in the Special Provisions and take precedence over the MAG, ADOT, MUTCD, USDA Forest Service Specifications and the General Provisions.

Where there is no conflict between MAG Specifications, ADOT, MUTCD, USDA Forest Service and the General Provisions, the Special Provisions are to be construed as being additions to the Specifications. In cases of conflict between the other Specifications and the Special Provisions, the Special Provisions are to be construed as supplanting only the conflicting portions of the other Specifications.

MAG UNIFORM STANDARD SPECIFICATIONS FOR PUBLIC WORKS

CONSTRUCTION AND THE GENERAL PROVISIONS ARE HEREBY AMENDED TO

INCLUDE THE FOLLOWING:

PART 100 – GENERAL CONDITIONS

SECTION 102 – BIDDING REQUIREMENTS AND CONDITIONS

102.4 EXAMINATION OF PLANS, SPECIAL PROVISIONS AND SITE OF WORK:

(Revised the second paragraph to read)

The bidder shall examine the site of the proposed work and all documents pertaining to the work.

It is mutually agreed that the submission of a proposal shall be considered prima facie evidence that the bidder has made such examination and is familiar with the character, quality and quantity of the work to be performed and material to be furnished.

The project area is subject to standing water and seasonal springs which may affect the existing subgrade material. The bidder shall take these factors into account when bidding the project.

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SECTION 104 – SCOPE OF WORK

104.1 WORK TO BE DONE

104.1.1 General

(Revised to include the following)

The Forest Road 105 Improvements project generally includes the following components:

• Reconstruct the existing roadway

• Install and modify drainage features (new culverts, extensions to existing culverts, new channels, new end sections, daylight channel outlets)

• Install rip-rap to drainage features

• Reconstruct existing parking lots and existing curb and gutter

• Install new signs

• Remove and relocate existing signs

• Add striping to Forest Road 105 and parking lot

• Removal of existing trees

• Construct/Modify new driveway entrances and trail pathways

Pre-Construction Video

As-Built Plans

The contractor shall be required to maintain an as-built "red-line" set of construction plans that fully describes work that deviated from the approved plans and submit a set to Apache-Sitgreaves National Forest (hereinafter referred to as Forest Service) Inspection and the Engineer of Record at the completion of work.

104.1.2 MAINTENANCE OF TRAFFIC

(Revised to include)

The Contractor shall maintain 1 travel lane at all times during construction working hours with flaggers as needed. Vertical panels or flexible delineation shall be used in the work zone areas and shall conform to MUTCD Specifications Section 6F for horizontal and vertical placement. If at any time a temporary road needs to be constructed the Contractor will notify the Forest Service immediately and get approval before beginning any work, including clearing and grubbing for the temporary road.

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Construction of Temporary Access

The Contractor shall coordinate with Forest Service if a temporary access to each work site is needed. The Contractor shall request to construct a temporary access to the work site with the Forest Service. Upon approval the Contractor shall construct and remove the temporary access to the work site. This activity shall be shown on the contractor’s schedule and include both the construction and removal of the access points. The Contractor shall notify the Forest Service of any schedule changes that impacts this activity.

Construction Phasing

Contractor shall submit a schedule and plan view of construction segments of improvement areas to the Forest Service for approval. The Contractor can re-use and relocate SWPPP features and construction signs, etc for the construction segments. The Contractor shall contact the Forest Service with any proposed schedule changes while adhering to the original schedule until Forest Service approval of the proposed schedule changes.

Removal and Replacement of boulders

The Contractor will remove the existing boulders at Old Rim Trailhead entrance prior to the beginning work. The Contractor will coordinate with the Forest Service to establish the new location of the boulders upon completion of the driveway entrance. The Contractor is required to notify the Forest Service at least 5-business days prior to these work activities.

The Contractor shall coordinate with the Forest Service the location of the boulders for removal and replacement at other locations within the project area. The Contractor is required to notify the Forest Service at least 2-business days prior to the work activities impacted by the removal and replacement of boulders.

SECTION 105 – CONTROL OF WORK:

105.5.1 WEEKLY CONSTRUCTION MEETING:

(Revised to include new sub-section)

The Contractor’s Superintendent shall attend weekly construction progress meetings. The weekly meetings may be changed by the Forest Service COR (Contracting Officer Representative) at any time. The Contractor representative shall be prepared to discuss construction schedule, construction activities projected for the next two weeks, problems, issues and any other pertinent project details as may be required by the Forest Service representative.

The attendance for the construction meetings shall be the Contractor’s Superintendent and the Forest Service COR. Others would include Forest Service personnel and member(s) from

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Woodson Engineering (Designer of Record) as may be required to attend by the Forest Service COR for specific issues.

All meeting locations will be at the project site unless otherwise specified by the Forest Service

COR.

105.5.2 PROTECTION OF WORK:

(Revised to include new sub-section)

The Contractor is required to protect work during inclement weather. The Contractor shall grade areas to drain and utilize pumps to remove ponding water immediately during all stages of construction during both working and non-working hours.

105.8 CONSTRUCTION STAKES, LINES, AND GRADES

(Revised in entirety)

Unless noted otherwise in the contract documents, the Contractor shall lay out the work from the lines, grades and dimensions shown on the plans. The Contractor shall be responsible for all such work for the duration of the project. Any dimension or grade errors shall be immediately transmitted in writing to the Forest Service for clarification, before proceeding with the work.

SECTION 106 – CONTROL OF MATERIALS:

106.5 STORAGE OF MATERIALS:

(Revised to include the following)

The Contractor shall coordinate with Forest Service if a temporary storage yard is needed. The Contractor shall request to construct a temporary access to the storage yard with the Forest Service, if required. Upon approval the Contractor shall construct and remove the temporary access to the storage yard. This activity shall be shown on the contractor’s schedule and include both the construction and removal of the temporary access and storage yard. The Contractor shall notify the Forest Service of any schedule changes that impacts this activity. The removal of the temporary access and storage yard shall be incidental to other bid items.

SECTION 107 – LEGAL REGULATIONS AND RESPONSIBILITY TO

PUBLIC:

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107.2 PERMITS:

(Revised to include the following)

The Contractor shall be required to coordinate with the Forest Service and obtain any required permits prior to beginning any work subject to these permits and shall always have a copy available onsite along with the plans.

Erosion Protection and Site Restoration

A NOI permit is required because the project is more than 1 acre or is required by the Forest Service the Contractor shall use best management practices (BMP) in controlling stormwater runoff. A SWPPP has been included in the construction documents for the Contractor’s use. The contractor shall develop and maintain a SWPPP inspection and maintenance binder that is to be kept on site during construction. This plan is to be reviewed by the Forest Service prior to the construction of the temporary access points and removal and/or relocation of the boulders.

107.4 ARCHAEOLOGICAL REPORTS:

(Revised to include the following)

The Contractor shall be required to coordinate with the Forest Service to locate the archaeological sites previously identified. If improvements are at or near the sites the Contractor shall notify the Forest Service immediately and follow the standards in this section.

107.8 USE OF EXPLOSIVES:

(Revised to include the following)

The Contractor shall be required to coordinate with the Forest Service if blasting is needed in areas of the project. No blasting shall be done without approval from the Forest Service. Any permits that result in blasting shall be obtained by the Contractor. The schedule and plan in-place shall be coordinated with the Forest Service.

107.9 PROTECTION AND RESTORATION OF PROPERTY AND LANDSCAPE:

(Revised to include the following)

The Contractor shall take special care to control construction-related dust and noise and to keep the project site cleaned up. The Contractor is responsible to coordinate alternate measures for any impacted operations as mentioned which are acceptable to the parties involved. The project will not be deemed complete until all trash, debris and excess material is removed from the site.

Survey monuments shall be protected and not disturbed unless specifically called out on the plans for replacement. All costs associated with protecting or re-establishing disturbed survey monuments shall be borne solely by the Contractor.

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SECTION 201 – CLEARING AND GRUBBING

201.1 DESCRIPTION

(Revised to include the following)

The existing trees and existing boulders not shown on the plans as to be removed in the area of grading operations and new roadway shall be removed if they are within the roadway or drainage features prism.

201.3 CONSTRUCTION METHODS

(Revised the first paragraph to re-read)

The construction site and areas on each side of the roadway from centerline to the edge of pavement and from the edge of pavement to 25 feet on both sides of the roadway prism, whichever is greater, shall be cleared of all trees, stumps, brush, roots, rubbish, debris, boulders and other objectionable matter, except as follows.

201.4 REMOVAL AND DISPOSAL OF SALVAGEABLE ITEMS

(Revised to include the following)

The Contractor shall coordinate with the Forest Service to determine which trees are to be salvaged and kept by the Forest Service before clearing outside of the grading/roadway prism begins. The Forest Service shall provide to the Contractor the location where the salvaged trees are to be placed by the Contractor.

201.6 MEASUREMENT, REMOVAL AND DISPOSAL OF TREES:

(Revised to read)

If the proposal includes separate estimates of quantities for the removal of trees, the tree will be classified by size as follows:

(A) Pine trees and Aspen Trees 12 inches or less in diameter at 1-foot above the original ground surface will be included in the bid price for clearing and grubbing or excavation and no additional compensation will be allowed.

(B) Pine trees and Aspen Trees more than 12 inches in diameter at 1-foot above the original ground shall be measured per tree removed under the bid item “Remove & Dispose of existing tree”, and shall be paid for at the unit price bid per tree removed.

201.7 PAYMENT, REMOVAL AND DISPOSAL OF TREES:

(Revised to re-read)

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Payment for removal of trees outside the roadway prism as stated in sub-section 201.3 will be on a unit price for each tree measured and removed, in accordance with the above classifications, at the unit price stipulated in the proposal.

SECTION 211 – FILL CONSTRUCTION

211.5 MEASUREMENT

(Revised to include the following)

Measurement for removal and disposal of existing abandoned septic tanks in ground as mentioned in Section 350 of these special provisions shall be measured in unit Lump Sum.

Measurement for removal and disposal of existing monument sign including foundation and entire structure as mentioned in Section 350 of these special provisions shall be measured in unit Lump Sum.

SECTION 215 – EARTHWORK FOR OPEN CHANNELS

215.1 DESCRIPTION

(Revised to include the following)

Open channels for the purpose of this Section include: Earthen trapezoidal channels or earthen v-ditches and earthen daylighted sections. Roadside ditches are not included as part of open channels.

215.3 EXCAVATION

(Revised to include the following)

Surplus material shall be disposed of per section 205.6.

215.5 GRADING

(Revised to include the following)

Grading at the inlet and outlet of the storm drain structures shall grade to drain to and from the structure.

At inlet structures the roadside ditches shall grade to drain to each structure to allow flow to be conveyed through the drainage structure; and/or continue in its natural flow path.

At outlet structures:

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• Intermittent streams which have a defined channel should not be modified or channelized except to repair erosion and stabilize the stream channel. No clearing is permitted within the stream bank except to remove underbrush and fallen timber and large boulders.

• Natural watercourses, in which flow is broad and shallow, and which have no defined channel should not be modified or channelized except to daylight from inlet or outlet of storm drain structure or channel. Removal of trees and vegetation within the watercourse should be avoided.

215.7 MEASUREMENT

(Revised to include the following)

The grade to drain areas shown on the plans are considered incidental to the drainage structures.

215.8 PAYMENT

(Revised to include the following)

The grade to drain areas shown on the plans are considered incidental to the drainage structures and any additional work for these grade to drain areas is considered incidental to and part of the cost of the drainage structure bid item.

SECTION 220 – RIPRAP CONSTRUCTION

220.1 DESCRIPTION

(Revised to include the following)

Riprap shall not be grouted at any of the locations shown on plans. The depth and type of riprap shall be as shown on the plans.

Drainage Rock shown on the details and/or construction notes shall be considered to be riprap.

Non-Drainage Rock is not considered riprap.

Erosion control geosynthetic fabric as shown on detail “Culvert outlet protection detail” shall be used at the culvert outlet.

220.2 MATERIALS

(Revised to include the following)

Drainage Rock (riprap) D50 sizes and locations are shown on the plans per Section 703.

The Non-Drainage Rock shall be maximum D50=6” and shall conform to the physical properties in Section 703.2.

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The erosion control geosynthetic fabric used shall be what is called out on the plans or an approved equal.

220.4 PLACEMENT OF EROSION CONTROL GEOSYNTHETIC FABRIC

(Revised to include the following)

The erosion control geosynthetic fabric shall be placed at locations shown on the plans unless rock is encountered. If rock is encountered then fabric may be omitted, only with approval from the Forest Service.

220.5 RIPRAP PLACEMENT

(Revised to include the following)

The riprap shall be placed at locations shown on the plans unless rock is encountered. If rock is encountered then riprap may be omitted with approval from the Forest Service.

220.8 PAYMENT

(Revised to re-read)

Payment for riprap (which includes Drainage Rock as shown in Culvert Outlet Detail and Culvert Inlet Detail) will be made for the accepted complete in-place riprap construction at the contract unit price. Riprap construction shall include excavation, ground surface preparation, erosion control geosynthetic fabric, bedding material, riprap stone, and backfilling.

Incidentals shall include maximum D50=6” Non-Drainage Rock that are up and around the inlet and outlet of the culverts, end sections, and headwall.

Payment for riprap (Drainage Rock as mentioned above) shall be full compensation for furnishing all material, labor and equipment for riprap construction.

SECTION 301 – SUBGRADE PREPARATION

301.1 DESCRIPTION

(Revised to include the following)

The Contractor shall coordinate with the Forest Service to establish an approved location for a disposal site.

301.7 MEASUREMENT

(Revised to include the following)

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No measurement or payment will be made for loading and hauling removed items to an approved disposal location. The cost of loading, hauling, and disposal is considered to be included in the cost of the removal.

SECTION 306 – MECHANICALLY STABILIZED SUBGRADE –

GEOGRID REINFORCEMENT

306.2 MATERIALS

(Revised to re-read)

The geogrid material shall be supplied by the Contractor and shall be Tensar Triaxial Grid (TX7) or equivalent with Engineer’s approval.

306.5 GEOGRID PLACEMENT

(Revise to include the following)

The geogrid shall be installed in accordance with the installation guidelines provided by the manufacturer or as directed by the Engineer.

SECTION 310 – PLACEMENT AND CONSTRUCTION OF AGGREGATE

BASE COURSE

310.1 DESCRIPTION

(Revised to re-read)

The description for Aggregate Base shall be as specified in Section 303 of the ADOT Standard Specifications-Description.

310.3 COMPACTION

(Revised to re-read)

The description for Aggregate Base shall be as specified in Section 303 of the ADOT Standard Specifications-Compaction.

The description for Aggregate Base shall be as specified in Section 303 of the ADOT Standard Specifications-Finishing.

310.4 THICKNESS AND/OR PLASTICITY INDEX DEFICIENCY

(Revise to include the following)

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The Aggregate Base shall be Class 3, and shall be as specified in Section 303 of the ADOT Standard Specifications. The grading shall be as follows:

Sieve Size % Passing

1” 100

3/4” 80-100

3/8” 55-75

#8 30-45

#200 0-6

The plasticity index shall not exceed 3.

310.5 MEASUREMENT

(Revised subsection heading and to read)

The quantity of asphalt concrete pavement and aggregate base will be measured by the square yard in place, using plan dimensions. This shall include the required quantities of mineral aggregates, asphalt binder, and mineral admixture. Measurement shall include any tonnage used to construction intersections, roadways, streets, or other miscellaneous surfaces indicated on the plans or as directed by the Engineer.

310.6 PAYMENT

(Revised subsection heading and to read)

The asphalt concrete pavement and aggregate base measured as provided in the measurement will be paid for at the contract price per square yard, as adjusted per Section 321.10, which price shall be full compensation for the item complete, as herein described and specified.

SECTION 321 – PLACEMENT AND CONSTRUCTION OF ASPHALT

CONCRETE PAVEMENT

321.12 MEASUREMENT

(Revised to re-read)

The quantity of asphalt concrete pavement and aggregate base will be measured by the square yard in place, using plan dimensions. This shall include the required quantities of mineral aggregates, asphalt binder, and mineral admixture. Measurement shall include any tonnage used

Woodson Engineering 115534 14 to construction intersections, roadways, streets, or other miscellaneous surfaces indicated on the plans or as directed by the Engineer.

321.13 PAYMENT

(Revise to re-read)

The asphalt concrete pavement and aggregate base measured as provided in the measurement will be paid for at the contract price per square yard, as adjusted per Section 321.10, which price shall be full compensation for the item complete, as herein described and specified.

Payment for emulsified bituminous tack coat will be included in the contract item for

PLACEMENT AND CONSTRUCTION OF ASPHALT CONCRETE

PAVEMENT.

SECTION 336 – PAVEMENT MATCHING AND SURFACING

REPLACEMENT

336.4 MEASUREMENT:

(Revised to include the following)

The quantity of sawcutting will be measured by linear foot, using plan dimensions as mentioned in Section 350 of these specials.

SECTION 350 – REMOVAL OF EXISTING IMPROVEMENTS

350.3 MISCELLANEOUS REMOVAL AND OTHER WORK:

(Revised to include the following)

This work shall include, but not limited to the following, where called for on the plans:

(I). Remove existing curb and gutter.

(J). Remove existing sidewalk.

(K). Remove existing tree.

(L). Remove existing AC pavement.

(M). Remove existing culvert.

(N). Remove existing bridge crossing.

(O). Remove existing signs.

(P). Remove existing vaults.

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(Q). Remove concrete spillway.

(R). Remove gate and gate post hole.

(S). Remove and salvage existing gate.

(T). Remove and dispose of existing abandoned septic tank in ground. The Contractor shall place and compact holes and voids per Section 211.

(U). Remove and dispose of existing monument sign including foundation and entire structure. The Contractor shall place and compact holes and voids per Section 211.

(V). Sawcutting existing asphalt. The Contractor shall conform to the construction methods in Section 336.

(W). Abandon existing culvert in place and concrete fill and bury pipe.

SECTION 361 –REMOVE AND REINSTALL SIGN PANELS

(New Section)

361.1 –DESCRIPTION

The work under this item shall consist of removal of existing signs and re-installation of existing panels on new sign posts, including hardware. The existing sign post shall be removed and salvaged to the Forest Service.

361.2 –MATERIALS

Sign panel shall consist of the existing panel and shall conform to the special provisions Section

365.2 SIGN PANELS-Materials.

Sign post shall be new and shall be a u-channel post per Sign Post Installation Detail as shown on the plans.

361.3 –CONSTRUCTION REQUIREMENTS

Sign panels will be the existing panel and installation shall conform to the special provisions Section 365.3 SIGN PANELS-Construction Requirements.

Sign post shall be new and installed per Sign Post Installation Detail as shown on the plans.

361.4 –MEASUREMENT

Sign (Remove And Reinstall) will be measured as a unit complete in place, including the re-used sign panel and new post. No separate measurement or payment will be made for panels, posts, and foundations.

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361.5 –PAYMENT

The accepted quantities of Sign (Remove And Reinstall), measured as described above, will be paid for at the contract unit price per each complete in place.

The Contractor is responsible to replace the existing sign panel if it is damaged and will be at no cost to the Forest Service.

No additional payment will be made for signs with sheeting applied to both sides, the cost being considered as included in the contract unit price for the sign panel.

SECTION 362 –INSTALL NEW SIGNS

362.1 –DESCRIPTION

The work under this section shall consist of furnishing and installing new sign panels on new posts in accordance with the details shown on the plans and the requirements under this section

The sign types are shown on the plans.

362.2 –MATERIALS

Sign panel shall be new and shall conform to the special provisions Section 365.2 SIGN PANELS-Materials.

Sign post shall be new and shall be a u-channel post per Sign Post Installation Detail as shown on the plans.

362.3 –CONSTRUCTION REQUIREMENTS

Sign panels shall be installed and shall conform to the special provisions Section 365.3 SIGN PANELS-Construction Requirements.

Sign post shall be new and installed per Sign Post Installation Detail as shown on the plans.

362.4 –MEASUREMENT

Signs will be measured as a unit per each sign installed, complete in place, and including new posts.

362.5 –PAYMENT

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The accepted quantities of Signs, measured as described above, will be paid for at the contract unit price per each complete in place.

No additional payment will be made for signs with sheeting applied to both sides, the cost being considered as included in the contract unit price for the sign panel.

SECTION 363 –PERMANENT PAVEMENT MARKINGS

Construct per Section 708 of the ADOT Standard Specifications except for the following modifications.

363.1 –DESCRIPTION

The work under this section shall consist of furnishing all materials preparing the pavement surface and applying permanent pavement markings to the pavement in accordance with the details shown on the project plans and the requirements of these specifications.

Permanent pavement markings include white striping, yellow striping, on main road and intersections and parking lot lines.

363.2 –MATERIALS

Materials shall be in conformance with subsection 708-2 of the ADOT Standard Specifications.

363.3 –CONSTRUCTION REQUIREMENTS

Construction requirements shall be in conformance with subsection 708-3 of the ADOT Standard Specifications modified to add the sub-sections below. The following subsection numbers reflect ADOT Standard Specifications.

708.2.02(B) Physical Requirements: of the ADOT Standard Specifications is modified to add:

(6) Heavy Metal Concentration:

Heavy metal concentration in glass beads shall be as specified in the following table, when tested by an independent laboratory, approved by the Engineer, using EPA Method 3052 and EPA Method 6010B. A Certificate of Analysis conforming to Subsection

106.05 shall be furnished to the Engineer prior to use.

Heavy Concentration

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Metal Arsenic < 75 ppm

Antimony < 75 ppm Lead < 100 ppm

708-3.02 Application: the last paragraph of the Standard Specifications is revised to read:

Tolerances for Placing Paint, Beads, and Primer:

The length of painted segment and gap shall not vary more than six inches in a 40-foot cycle.

The finished line shall be smooth, aesthetically acceptable and free from undue waviness.

Painted lines shall be four, eight, or 12 inches wide as shown on the plans with a tolerance of ± 1/8 inch and shall be placed at a minimum rate of 16 gallons per mile for a solid four-inch line and four gallons per mile for a broken four-inch line, based on a 10-foot stripe and a 30-foot gap (40-foot cycle aggregate).

Glass reflectorizing beads shall be applied on the wet paint at a minimum rate of eight pounds per gallon of paint.

Wet thickness shall not be less than 15 mils, unless otherwise shown on the plans.

708-3.02 Application:

(Revised to include)

Application of final stripe to begin 30 calendar days after cessation of all paving operations.

363.4 –MEASUREMENT

Measurement of pavement marking lines shall be made by the linear foot of a single stripe. A double yellow stripe is measured as two (2) times the linear foot and a single stripe is measured as one (1) times the linear foot.

363.5 –PAYMENT

The accepted quantities of Thermoplastic Pavement Markings, measured as described above, will be paid for at the contract unit price per linear foot complete in place, including necessary

Woodson Engineering 115534 19 pavement cleaning, removal of temporary markings, and maintaining temporary markings in construction zones.

SECTION 364 –PREFORMED PAVEMENT MARKINGS

364.1 –DESCRIPTION

(A) General: Subsection 705-1 of the ADOT Standard Specifications is revised to read:

The work under this section shall consist of furnishing all materials, preparing the pavement surface and applying preformed reflectorized pavement marking tape, and preformed thermoplastic arrows, symbols, and legends to the pavement in accordance with the details shown on the project plans and the requirements of the specifications.

All markings shall be reflectorized with glass beads or other retroreflective particles uniformly distributed throughout the entire cross section and bonded to the top surface of the material. All markings shall comply with the retroreflectance requirements of Subsection 705-2.05. When glass beads are used to reflectorize markings, the glass bead properties shall also comply with Subsection 705-2.06.

Certificates of Compliance conforming to the requirements of MAG SS 106.2 shall be submitted.

Preformed pavement marking tape arrows, symbols, legends, crosswalk striping, and stop bars shall be limited to the following applications unless otherwise specified in the contract documents. Crosswalk striping lines (transverse and diagonal) shall be 12 inches in width at all locations per MUTCD Standards Section 3B.18 per Crosswalk Detail as shown on plans:

A list of approved manufacturers and distributers of Type I preformed pavement marking materials is shown on the ADOTs Approved Product List (APL). The most recent version is available on the ADOTs website from the ADOT Research Center, through its product evaluation program.

364.2 –MATERIALS

Preformed Pavement Markings - Type I (Permanent): Subsection 705-2.01 of the ADOT Standard Specifications is revised to read:

(A) General:

Type I preformed pavement marking material shall consist of a homogeneous, extruded, pre-fabricated white or yellow film of specified thickness and width that shall be capable of being affixed to Portland cement concrete or non-bleeding bituminous pavements per

Woodson Engineering 115534 20 the manufacturer’s requirements, either on the pavement surface or, when specified on the plans, inlaid into a cut-out groove. The preformed plastic film shall be weather resistant and through normal traffic wear shall show no appreciable fading, lifting, loss of skid resistance, or shrinkage or significant tearing, roll back, or other signs of poor adhesion throughout the useful life of the marking.

When extruded, the plastic film without adhesive shall be a minimum of 0.065 inch thick.

The plastic film as supplied shall be of good appearance, free of cracks and discolorations, and the edges shall be clean-cut and well defined. The plastic film shall be supplied complete with a precoated, factory-applied pressure sensitive adhesive backing with a protective release paper, or it may be furnished with separate adhesive as recommended by the manufacturer. A surface preparation primer shall also be applied if recommended by the manufacturer. Whether the adhesive is precoated or supplied separately, the adhesive shall be such as to allow the plastic film to be repositioned on the pavement surface to which it is applied before permanently fixing it in its final position with a downward pressure.

All white and yellow Type I pavement markings shall be warranted by the manufacturer to retain color and adherence to the pavement, and to retain a minimum retroreflectance of not less than 100 millicandelas/m2/lux for a minimum of two years for symbols, legends, and transverse pavement markings, and five years for longitudinal pavement markings. The warranty period shall begin after all pavement markings are installed and accepted by the Forest Service. Failure to meet the specified retroreflectance on at least 90 percent of the longitudinal pavement marking in any 1000-foot segment, or 90 percent of a legend, symbol, or transverse pavement marking shall be considered a complete failure of that marking. The warranty shall state that the manufacturer will provide new material to replace defective Type I markings at no additional cost to the Forest Service.

The warranty shall also state that the replacement material shall conform to these specifications. The contractor shall submit a copy of the manufacturer’s warranty to the Engineer along with the certificate of compliance required in subsection 705-1(A).

(B) Composition Requirements:

The preformed plastic pavement marking material shall consist of the following components:

Minimum Percent by Weight

Resins and Plasticizers 20

Pigments 30

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Reflective Glass Beads*

20*

*Applicable only when glass beads are used to reflectorize Type I markings.

(C) Physical Requirements:

(1) Color:

The pigments shall be selected and blended to provide a white or yellow marking film which conforms to standard highway colors, when tested according to ASTM D 6628, throughout the expected life of the film.

(2) Bend Test:

The plastic film shall be sufficiently flexible so that at a temperature of 78 to 82 degrees F an unmounted piece of material (without adhesive and paper backing), three by six inches in size, may be bent over a one-inch mandrel until the end faces are parallel and one inch apart without showing any fracture lines in the uppermost surface.

(3) Tensile Strength:

The plastic film (without adhesive or paper backing) shall have a minimum tensile strength of 40 pounds per square inch when a specimen six inches long by one inch wide is tested in accordance with the requirements of ASTM D 638. The rate of pull of the test shall be 0.25 of an inch per minute. The test shall be conducted at a temperature between 70 and 80 degrees F. The elongation shall be no greater than 75 percent.

(4) Plastic Pull Test:

A six-inch long by one-inch wide section of the plastic film (without adhesive and paper backing) shall support a dead load weight of four pounds for not less than five minutes at a temperature between 70 and 80 degrees F.

(5) Abrasion Resistance:

The plastic film shall have a maximum loss in weight of 0.25 grams in 500 revolutions when abraded according to ASTM D 4060.

(6) Skid Resistance:

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The surface of the material shall provide a minimum resistance value of 45 BPN when tested according to ASTM E 303.

Retroreflectance: Subsection 705-2.02 of the ADOT Standard Specifications is revised to read:

All white and yellow pavement marking materials shall have the following minimum retroreflectance values when measured by a certified testing lab department using an LTL-X Delta Retrometer or similar device, within 30 days after application to the roadway surface:

Table 1

Long Line Markings

Retroreflectance (millicandelas/m2/lux)

White 500

Yellow 300

Table 2

Arrows, Symbols, Legends, Short

Lines

Retroreflectance (millicandelas/m2/lux)

White 350

Yellow 200

For sections determined to be deficient in retroreflectivity, the pavement markings shall be removed in a manner approved by the Engineer, and new markings shall be re-applied in accordance with the manufacturer’s recommendations. For long lines, the limits of re-application shall start from the location of a passing test, across the failure area(s), to the next passing test location. The minimum length of reapplication shall be 0.4 miles.

For arrows, symbols, legends and short lines, the entire defective unit shall be re-applied.

Glass Bead Properties: Subsection 705-2.03 of the ADOT Standard Specifications is revised to read:

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(A) General Requirements:

When glass beads are used to achieve retroreflectivity, the beads shall be manufactured from glass of a composition designed to be highly resistant to traffic wear and to the effects of weathering.

(B) Physical Requirements:

(1) Roundness:

The roundness of the glass beads shall be determined in accordance with the requirements of ASTM D 1155. A minimum of 75 percent of the beads shall be water-white true spheres free from imperfections of all types including air inclusions, film, scratches, clusters, and surface scoring.

(2) Refractive Index:

The glass beads used with the preformed pavement marking material shall have a minimum refractive index of 1.50 when tested by a liquid immersion method (Becke Line Method or equivalent, as specified in ASTM C 1648) at a temperature of 25 ± 5 °C.

(3) Gradation:

The gradation of the glass beads shall be such that performance requirements for the preformed pavement marking material shall be met.

(4) Heavy Metal Concentration:

Heavy metal concentration in glass beads shall be as specified in the following table, when tested by an independent laboratory, approved by the Engineer, using EPA Method 3052 and EPA Method 6010B. A Certificate of Analysis conforming to Subsection

106.05 shall be furnished to the Engineer prior to use.

Heavy Metal Concentration

Arsenic < 75 ppm

Antimony < 75 ppm

Lead < 100 ppm

364.3 –CONSTRUCTION REQUIREMENTS

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Construction Requirements: Subsection 705-3 of the ADOT Standard Specifications is revised to read:

The contractor shall install preformed pavement markings at the locations shown on the project plans, as specified in the Special Provisions, or as directed by the Engineer.

Preformed marking tape shall be applied manually or with the tape applicators approved by the tape manufacturer. All markings shall be applied in accordance with the manufacturer's recommendations and as specified herein. Preformed pavement markings shall not be applied over other markings or old paint unless specified in the project plans, directed by the Engineer, or allowed by the manufacturer and approved by the Engineer prior to application.

Preformed pavement markings shall be applied to surfaces that are free of moisture and thoroughly cleaned of loose, foreign or other material that may adversely affect bonding.

The contractor shall remove all dirt, dust, grease, oil or other detrimental material from the road surface. The method of cleaning the surface is subject to approval by the Engineer and shall include sweeping and the use of high-pressure air spray.

Newly placed asphaltic concrete surfaces need not be cleaned unless, in the opinion of the Engineer, the surface has become contaminated to the extent that cleaning is necessary to provide proper bonding.

When preformed markings are to be applied to new Portland cement concrete pavement, any curing compound present shall be removed by means of a high-pressure water jet or sandblasting, followed by sweeping and high-pressure air spray. The curing compound shall be removed at least two inches beyond the entire perimeter of each marking to be installed. In addition, a manufacturer approved primer-sealer shall be applied to both old and new Portland cement concrete pavement prior to application of preformed markings.

The primer-sealer shall be applied at the manufacturer's recommended application rates prior to placing the preformed marking. The primer-sealer shall be allowed to set up for the manufacturer's specified cure or evaporation time, and shall be free of solvent and water when the preformed marking is applied.

Preformed pavement markings shall be applied immediately after the surface has been prepared or as soon as possible after placement and completion of new pavement. When Type I markings are used, the road surface temperature, at the time of application, shall not be less than 60 degrees F and rising and the pavement surface shall be absolutely dry.

Despite the specified or recommended minimum surface temperature and surface condition, the Engineer may, at any time, require that the work cease or that the work day be reduced in the event that weather conditions, either existing or expected, are anticipated to have an adverse effect upon the preformed pavement marking.

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The contractor shall use butt splices only and shall not overlap the marking material. All markings shall be thoroughly tamped with approved mechanical tampers.

The contractor shall immediately correct all misalignments when so ordered by the Engineer. The misaligned portions shall be removed and reinstalled in accordance with these specifications. All areas marked with preformed pavement markings shall be ready for traffic immediately after application.

When the plans require Type I preformed long line or short line pavement markings to be placed in a groove, the contractor shall construct the sawcut groove in accordance with the requirements of the special provisions.

The application of preformed pavement markings shall be in accordance with the recommendations of the manufacturer of the material and these specifications. After application the pavement markings shall be immediately ready for exposure to traffic.

364.4 –MEASUREMENT

Method of Measurement: Subsection 705-4 of the ADOT Standard Specifications is revised to read:

Preformed pavement marking symbols, such as diamonds; single, double, or triple arrows; or freeway arrows, will be measured by each unit applied, regardless of configuration. Each pavement symbol, as shown on the plans, will be considered a unit.

Preformed pavement marking legends, defined as a complete letter grouping such as "SCHOOL," "XING," "STOP," “RR,” or "ONLY", will be measured by each unit applied. Each pavement legend, as shown on the plans, will be considered a unit.

364.5 –PAYMENT

Basis of Payment: Subsection 705-5 of the ADOT Standard Specifications is revised to read:

The accepted quantities of preformed pavement markings, measured as provided above, will be paid for at the contract unit price each complete in place, including necessary pavement cleaning, removal of temporary markings, and maintaining temporary markings in construction zones.

In the event a second failure occurs when markings have been reapplied on distressed pavements or under weather conditions described above, the Engineer shall determine if

Woodson Engineering 115534 26 conditions require primer, alternate methods of marking, or reapplication of preformed markings. Preformed markings will be paid for at the contract unit price. Primers or other methods of markings deemed necessary by the Engineer to remedy second failures will be paid for in accordance with the provisions of MAG Subsection 109.4.

SECTION 365 – SIGN PANELS

365.1 –DESCRIPTION

365-1 Description: Subsection 608-1 of the ADOT Standard Specifications is revised to read:

The work under this section shall consist of furnishing and installing sign panels in accordance with the details shown on the plans and the requirements set forth herein.

The sign panels shall be of the following types:

Extruded Aluminum Sign Panels with Direct-Applied, Digitally-Imaged, or Demountable Characters

Flat Sheet Aluminum Sign Panels With Direct-Applied, Digitally-Imaged, Electronic-Cut, or Screen-Printed Characters

Warning, Marker, and Regulatory Sign Panels

Route Shields for Installation on Sign Panels

EXIT ONLY Panels for Installation on Sign Panels

365.2 –MATERIALS

365-2 General: Subsection 608-2.01 of the ADOT Standard Specifications is modified to add:

Signs shall be fabricated in accordance with the recommendations established by the manufacturer of the sign sheeting. All processes and materials used to make a sign shall in no way impact the performance, uniform appearance (day and night), or durability of the sheeting, or invalidate the sign sheeting manufacturers’ warranty.

All sheeting used for background and legend shall be from the same manufacturer. Sign panels shall not be overlaid.

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All text and numerals shall all be installed at the same orientation: either zero degrees or 90 degrees.

Design of letters and numbers shall be in accordance with the project plans with a tolerance of ± 1/16th of an inch.

The contractor shall not paint the bolts or the washers unless otherwise specified.

Extruded Aluminum Sign Panels With Demountable Characters: the title of Subsection 608-2.02 of the ADOT Standard Specifications is revised to read:

Extruded Aluminum Sign Panels With Direct-Applied, Digitally-Imaged, or Demountable Characters:

Extruded Aluminum Sign Panels With Demountable Characters: the third paragraph of Subsection 608-2.02 of the ADOT Standard Specifications is revised to read:

The letters, numerals, symbols, borders and other features of the sign message shall be direct-applied, digitally-imaged, or demountable, and shall conform to the requirements of Subsection 608-2.14, Demountable Characters, Subsection 608-2.15, Screen-Printed, Direct-Applied, or Electronic-Cut Characters, or Subsection 608-2.16, Digitally-Imaged Characters.

Flat Sheet Aluminum Sign Panels With Direct-Applied or Silk-Screened Characters: the title and text of Subsection 608-2.07 of the ADOT the Standard Specifications are revised to read:

Flat Sheet Aluminum Sign Panels With Direct-Applied, Digitally-Imaged, Electronic-Cut, or Screen-Printed Characters:

Panels shall be fabricated from 0.125-inch thick 5052-H36, or 5052-H38 Aluminum Alloy conforming to the requirements of ASTM B 209.

Panel facing shall be prepared and covered with retroreflective sheeting in accordance with the recommendations of the sheeting manufacturer. The color of the sheeting shall be as specified on the plans or as shown in the Manual of Approved Signs.

All surfaces not covered shall be etched to reduce glare from reflected sunlight.

The retroreflective sheeting shall conform to the requirements of Section 1007 (See also Special Provisions Section 366 – RETROFLECTIVE SHEETING). Splicing of retroreflective sheeting shall not be allowed on sign panels having a minimum dimension up to and including four feet.

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Messages shall be reflectorized white or, if called for on the plans, opaque black, and shall be produced by either screen printing, direct-applying, digital imaging, or electronic cutting, as specified under Subsections 608-2.15 and 608-2.16.

Warning, Marker, and Regulatory Sign Panels: of Subsection 608-2.09 of the ADOT Standard Specifications is revised to read:

Panels shall be fabricated from flat sheet aluminum and shall be reflectorized as specified herein.

Panels shall be fabricated in one piece from 0.125-inch thick 5052-H36, 5052-H38, or 6061-T6 Aluminum Alloy conforming to the requirements of ASTM B 209.

All surfaces of panels to be covered with retroreflective sheeting shall be prepared in accordance with the recommendations of the sheeting manufacturer. Surfaces not covered shall be etched to reduce glare from reflected sunlight. Retroreflective sheeting shall conform to the requirements of Section 1007 (See also Special Provisions Section

366 – RETROFLECTIVE SHEETING).

Warning signs shall be reflectorized with fluorescent yellow retroreflective sheeting.

Regulatory signs shall be reflectorized with white retroreflective sheeting.

Reflectorized red signs shall be reflectorized with white retroreflective sheeting. The red color shall be produced by screen printing.

Regulatory signs with reflectorized red circles and slashes shall be reflectorized with white retroreflective sheeting. The red color shall be produced by screen printing.

Interstate route markers shall be cut to shape. The colors and legend shall be as shown on the plans and shall be reflectorized with white retroreflective sheeting. The Interstate route colors shall be screen-printed. The numerals may be screen-printed, electronic-cut, or direct-applied characters.

United States, State Route, and Cardinal Direction markers shall be reflectorized with white retroreflective sheeting unless otherwise shown on the plans.

Splicing of retroreflective sheeting shall not be allowed on sign panels having the minimum dimension up to and including four feet.

Route Shields (For Installation on Sign Panels): of Subsection 608-2.11 of the ADOT Standard Specifications is revised to read:

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Route shields may be demountable, direct-applied, or digitally-imaged.

Demountable route shields shall be cut to shape and shall consist of 0.063-inch thick, 5052-H36, or 5052-H38 Aluminum Alloy conforming to the requirements of ASTM B 209. The aluminum shall be degreased and etched in accordance with the recommendations of the sheeting manufacturer. Retroreflective sheeting shall be white and shall conform to the requirements of Section 1007 (See also Special Provisions Section 366 – RETROFLECTIVE SHEETING). Route shields shall be attached to the sign panel with self-plugging aluminum blind rivets.

EXIT ONLY (For Installation on Sign Panels): the title and text of Subsection 608-

2.12 of the ADOT Standard Specifications is revised to read:

EXIT ONLY Panels (For Installation on Sign Panels):

EXIT ONLY panels may be demountable, direct-applied, or digitally-imaged.

Demountable EXIT ONLY panels shall be attached to the sign panel with self-plugging aluminum blind rivets.

Demountable EXIT ONLY panels shall be fabricated from 0.063-inch thick, 5052-H36 or 5052-H38 Aluminum Alloy conforming to the requirements of ASTM B 209 with fluorescent yellow retroreflective sheeting adhered to the face side. The aluminum shall be degreased and etched in accordance with the recommendations of the sheeting manufacturer. Retroreflective sheeting shall conform to the requirements of Section 1007 (See also Special Provisions Section 366 – RETROFLECTIVE SHEETING).

Retroreflective Sheeting, Inks and Opaque Film: the second and third paragraphs of Subsection 608-2.13 of the ADOT Standard Specifications are hereby deleted.

General: the second paragraph of Subsection 608-2.14(A) of the ADOT Standard Specifications is revised to read:

Flat sheet aluminum substrates used for characters and borders shall be either aluminum alloy 3105-H14, 3003-H14, 5052-H36, or 5052-H38 as specified in ASTM B 209.

Characters produced from the flat sheet aluminum alloy shall sit flat on the face of the sign panel without visible gap or deformation.

Sheeting and Colors: the third, fourth, and fifth paragraphs of Subsection 608-2.14(B) of the ADOT Standard Specifications are revised to read:

The color for demountable letters, numbers, symbols, and route shields on green, blue, and brown background signs shall be white, and shall conform to the requirements of

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Section 1007 (See also Special Provisions Section 366 – RETROFLECTIVE SHEETING). Demountable legends on white and yellow background signs shall be black, and shall be opaque and non-reflective. Black characters shall be finished with laminated black opaque acrylic film.

When borders are used with demountable…