234020 Specials Pipe Burst JAC.pdf

Pipe Burst and Slipline COR

Bid No. 234020

01000 - 1 Special Provisions

Special Provisions

APPLICABLE STANDARD SPECIFICATIONS

The Standard Construction Specifications of the City of Salem, including revisions up to and effective as of February 2017, and the revised City of Salem Standard Plans effective prior to advertisement, shall be considered a part of these Specifications, the same as though contained fully herein, and hereinafter referred to as Standard Construction Specifications, or abbreviated SCS.

Also included are Sections and subsections of the Oregon Department of Transportation (ODOT) and

Oregon Chapter of American Public Works Association (APWA), Oregon Standard Specifications for

Construction (OSSC) 2008 Edition, and Oregon Standard Drawings (OSD), 2008 Edition.

The Contractor must review the SCS and take them into consideration in the preparation of their bid.

These Special Provisions supplement the SCS and do not replace the SCS unless otherwise indicated. Where section numbering is used in these Special Provisions it refers to the SCS. The Special Provisions apply specifically to the details of the Work that will be shown on the project specific Drawings for each Public

Works Construction Project.

A copy of the SCS, with the most current revised Standard Plans, a full set of Drawings, Special Provisions, and all addenda to these Contract Documents shall be on the job site while the Work is being performed.

Drawings showing the location, character of work, and details of construction will be provided to the

Contractor at a later time and will be included with these Contract Documents and incorporated herein by reference. The Standard Plans of the SCS are applicable to the Work covered under this Contract and are incorporated herein by reference.

ATTENTION: DIVISION 1 of the SCS is deleted and replaced with the following:

DIVISION 1—GENERAL REQUIREMENTS

Section 130—Submittals

130.40 General

(b) Sequence—Add the following text to this item of the SCS:

Allow five working days for Owner review and return of each iteration of submittals.

—Add the following new item to this subsection of the SCS:

(h) Measurements—Contractor shall verify field measurements prior to transmittal.

Section 170—Execution Requirements

Requirements

170.47 Notification and Coordination—Delete the text of this subsection of the SCS and replace with the following:

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Notify all affected Utilities and Government Agencies prior to start of construction. Coordinate necessary relocation work and detours. The following is a partial contact list:

Northwest Natural (Cameron Marcom) ....................................................................... 971-979-6810

Comcast (Jason McDonald 97301, 97303, 97304, 97305) .......................................... 503-924-9120

Comcast (Chris Cranford 97302) ................................................................................ 503-924-9120

Comcast (Jonathon Humphreys 97306, 97317) .......................................................... 503-302-0853

City of Salem Public Work Operations ....................................................................... 503-588-6333

Salem Electric-Distribution and Street Lighting (Adam Deshon) ............................... 503-316-2423

Portland General Electric (Ken Spencer) .................................................................... 503-970-7200

Portland General Electric-Street Lighting (Jeff Steigleder) ........................................ 503-672-5462

Lumen (Josh Fallin) ..................................................................................................... 503-399-4931

Salem/Keizer School District, Transportation (Michael Shields or Kevin Baker) ...... 503-399-3108

Cherriots (Dispatch). ................................................................................................... 503-588-2424

Section 171—Work Site Access Encumbrances and Restrictions

171.41 Project Specific Requirements—Add the following text to this subsection of the SCS:

(a) Unless otherwise specified, normal work days shall be Monday through Friday, 7 a.m. to 5 p.m.

Performing work on holidays, Saturdays, and Sundays will only be allowed as approved by the

Engineer. Additional traffic control work hour restrictions may apply, see Section 225 of these Special

Provisions for road closure and lane closure time restrictions.

Section 180—Progress Schedule

―Delete the text of this section of the SCS and replace with the following:

180.00 Schedule to Provide Services ― The successful bidder shall be required to submit scope of service within 14 calendar days of City request. The successful bidder shall be required to complete the tasks indicated in the Scope of Services, within 60 calendar days after issuance of the Notice to Proceed or as designated by the contract administrator or Engineer.

Section 191 – Cost of the Work; Contractor’s Fee

191.01 – Cost of the Work

(a) Costs Included: The term Cost of the Work means the sum of all costs, except those excluded in

Paragraph 191.01.b, necessarily incurred and paid by Contractor in the proper performance of the

Work. When the value of any Work covered by a Change Order or when a Claim for an adjustment in Contract Price is determined on the basis of Cost of the Work, the costs to be reimbursed to

Contractor will be only those additional or incremental costs required because of the change in the

Work or because of the event giving rise to the Claim. Except as otherwise may be agreed to in

01000 - 3 Special Provisions writing by Owner, such costs shall be in amounts no higher than those prevailing in the locality of the Project, shall include only the following items, and shall not include any of the costs itemized in Paragraph 191.01.b.

(1) Payroll costs for Foreman are per the hourly rate bid by the Contractor in the Invitation to

Bid. Payroll costs for all other labor categories are per the hourly Wage Rate (BOLI Wage

Rate at the time of the assignment plus mark-up) bid by the Contractor in the Invitation to

Bid. Payroll costs shall only include the time of staff working on the job site.

(2) Materials and Equipment costs including the following:

A. Cost of all materials and equipment furnished and incorporated in the Work, including costs of transportation and storage thereof, and Suppliers’ field services required in connection therewith.

B. Cost of construction equipment employed and parts therefor, whether such equipment is owned or leased by Contractor or rented from bonafide equipment rental companies in accordance with rental agreements approved by Owner, including the costs of transportation, loading, unloading, assembly, dismantling, and removal thereof. The rental of any such equipment, machinery, or parts shall cease when the use thereof is no longer necessary for the Work.

1. Cost computation for Contractor owned or leased equipment shall be made in accordance with the rates established in the Blue Book. Rate adjustment factors shall be applied to equipment for equipment age, geographic region of work, and standby status.

Hourly rates shall be calculated by dividing the adjusted monthly rate by 176 and then adding the hourly operating rate. If applicable, standby rates shall be determined pursuant to the recommendations in the Blue Book.

2. Cost computation for equipment rented from bonafide equipment rental companies shall be for only the proportional share of the executed rental agreement, and shall not exceed 30 percent of the total equipment cost for each project performed by the

Contractor without written approval from the Engineer.

3. Equipment items considered incidental to the work include, but are not limited to:

jumping jacks, plate compactors, pipe laser, line level, EL-1 level, generators 3000 watts or less, water pipeline pressure test equipment, dewatering pumps 2-inch diameter discharge and smaller, pressure washing equipment, hot saws with blades up to 14-inch diameter, and grinders with blades up to 4-inch diameter.

(3) Payments made by Contractor to Subcontractors for Work performed by Subcontractors. If required by Owner, Contractor shall obtain competitive bids from subcontractors acceptable to Owner and Contractor, and shall deliver such bids to Project Manager, who will then determine which bids, if any, will be acceptable. If any subcontract provides that the

Subcontractor is to be paid on the basis of Cost of the Work plus a fee, the Subcontractor’s

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Cost of the Work and fee shall be determined in the same manner as Contractor’s Cost of the

Work and fee as provided in Paragraph 191.01.

(4) Costs of special consultants (including but not limited to engineers, architects, testing laboratories, surveyors, attorneys, and accountants) employed for services specifically related to the Work, but only to the extent authorized and approved, in writing, by Owner.

(5) Supplemental costs including the following:

A. Cost, including transportation and maintenance, of all materials, supplies, equipment, machinery, appliances, office, and temporary facilities at the Site, and hand tools not owned by the workers, which are consumed in the performance of the Work, and cost, less market value, of such items used, but not consumed, which remain the property of Contractor.

B. The cost of Insurance and Taxes. Including the costs of premiums for all insurance

Contractor is required by the Contract Documents to purchase and maintain, and sales, consumer, use, and other similar taxes related to the Work, and for which Contractor is liable, imposed by Laws and Regulations. Costs will be paid per the bid item percentage.

C. Deposits lost for causes other than negligence of Contractor, any Subcontractor, or anyone directly or indirectly employed by any of them, or for whose acts any of them may be liable, and royalty payments and fees for permits and licenses.

D. Losses and damages (and related expenses) caused by damage to the Work, not compensated by insurance or otherwise, sustained by Contractor in connection with the performance of the Work, provided such losses and damages have resulted from causes other than the negligence of Contractor, any Subcontractor, or anyone directly or indirectly employed by any of them, or for whose acts any of them may be liable. Such losses shall include settlements made with the written consent and approval of Owner. No such losses, damages, and expenses shall be included in the Cost of the Work for the purpose of determining Contractor’s fee.

E. The cost of utilities, fuel, and sanitary facilities at the Site.

F. Minor expenses such as petty cash items in connection with the Work.

G. The costs of premiums for all bonds Contractor is required by the Contract Documents to purchase and maintain. No additional markup is allowed for bonding.

(b) Costs Excluded: The term Cost of the Work shall not include any of the following items:

(1) Payroll costs and other compensation of Contractor’s officers, executives, principals (of partnerships and sole proprietorships), general managers, safety managers, engineers, architects, estimators, attorneys, auditors, accountants, purchasing and contracting agents, expediters, timekeepers, clerks, superintendents (unless included by 191.01.a.1), and other personnel employed by Contractor, whether at the Site or in Contractor’s principal or branch

01000 - 5 Special Provisions office, for general administration of the Work and not specifically included in the agreed upon schedule of job classifications referred to in Paragraph 191.01.a.1 or specifically covered by Paragraph 191.01.a.4, all of which are to be considered administrative costs covered by the Contractor’s fee.

(2) Expenses of Contractor’s principal and branch offices.

(3) Any part of Contractor’s capital expenses, including interest on Contractor’s capital employed for the Work and charges against Contractor for delinquent payments.

(4) Costs due to the negligence of Contractor, any Subcontractor, or anyone directly or indirectly employed by any of them, or for whose acts any of them may be liable, including but not limited to the correction of defective Work, disposal of materials or equipment wrongly supplied, and making good any damage to property.

(5) Other overhead or general expense costs of any kind and the costs of any item not specifically and expressly included in Paragraphs 191.01.a.

(c) Contractor’s Fee: When the value of any Work covered by a Change Order or when a Change Order

Request for an adjustment in Contract Price is determined on the basis of Cost of the Work, Contractor’s fee shall be determined as set forth in Paragraph 191.02.a.

(d) Documentation: Whenever the Cost of the Work for any purpose is to be determined pursuant to

Paragraph 191.01.a, Contractor will establish and maintain records thereof in accordance with generally accepted accounting practices and submit, in a form acceptable to Project Manager, an itemized cost breakdown together with supporting data.

191.02 – Contractor’s Fee

(a) The Contractor’s fee for overhead and profit shall be determined as follows:

(1) A fee based on the following percentages of the various portions of the Cost of the Work:

A. for costs incurred under Paragraph 191.01.a.1, there shall be no additional Contractor’s fee above the unit price bid; and under Paragraph 191.01.a.2, the Contractor’s fee shall be 15 percent;

B. for costs incurred under Paragraph 191.01.a.3 and 191.01.a.4, the Contractor’s fee shall be 5 percent;

C. where one or more tiers of subcontracts are on the basis of Cost of the Work plus a fee, the intent of Paragraph 191.02.a.1.a is that the Subcontractor who actually performs the

Work, at whatever tier, will be paid a percentage fee in accordance with Paragraph

191.02.a.1.A, and that any higher tier Subcontractor and Contractor will each be paid a fee of 5 percent of the amount paid to the next lower tier Subcontractor;

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D. no additional fee shall be payable on the basis of costs itemized under Paragraphs

191.01.a.5 and 191.01.b;

E. the amount of credit to be allowed by Contractor to Owner for any change that results in a net decrease in cost will be the amount of the actual net decrease in cost plus a deduction in Contractor’s fee by an amount equal to 5 percent of such net decrease; and

F. when both additions and credits are involved in any one change, the adjustment in

Contractor’s fee shall be computed on the basis of the net change in accordance with

Paragraphs 191.02.a.1.A through 191.02.a.1.E, inclusive.

―END OF SECTION―

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DIVISION 2—GENERAL TECHNICAL REQUIREMENTS

ATTENTION: Delete Sections 201 through 206 of the SCS.

207 EROSION PREVENTION AND SEDIMENT CONTROL

207.9.00 PAYMENT

207.9.02 EROSION CONTROL—Add the following text after the first sentence of this subsection of the SCS:

• Concrete Management Facilities

208 RESTORATION AND CLEANUP

208.1.00 DESCRIPTION—Delete the second paragraph of this subsection of the SCS.

208.3.00 CONSTRUCTION—Add the following new subsection to the SCS:

208.3.09 GENERAL RESTORATION

All areas which are disturbed, damaged, and/or destroyed during construction shall be restored in conformance with the various subsections of the SCS and these Special Provisions. All restoration work associated with areas outside pavement, gravel, sidewalk, curbs, and similar areas shall meet the requirements of Section 701.

All landscaping shall be restored within two weeks of initially being disturbed.

All disturbed or removed fencing, pavers, retaining walls, and bark mulch shall be restored to prior existing condition or better.

⸺Add the following new subsections to the SCS:

Section 220—Accommodations for Pedestrians

Description

220.00 Scope—This work consists of providing and maintaining alternate pedestrian access routes, and temporary pedestrian barricades and channeling devices according to the Drawings, Standard Drawings, the sidewalk closure permit, these specifications, or as directed.

220.01 Abbreviations, Definitions, and Standards:

(a) Abbreviations:

TCD—Traffic Control Devices

(b) Definitions:

Detectable—A surface having a continuous edge within 6 inches of the surface so that pedestrians who have visual disabilities can sense its presence and receive usable guidance information.

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Pedestrian—A person on foot, in a wheelchair, on skates, or on a skateboard.

Traffic Control Device—A sign, signal, marking, or other device used to regulate, warn, or guide traffic, placed on, over, or adjacent to a street, pedestrian facility, or shared-use path

(c) Standards—When designing, applying, installing, maintaining, inspecting, and removing TCD, use and follow the most current versions in effect of the MUTCD.

220.02 General Requirements:

(a) Alternate Pedestrian Access Route—When a sidewalk or pathway is temporarily closed by construction, alterations, maintenance operations, or other conditions, provide an alternate pedestrian access route complying with the most current version in effect of MUTCD.

Materials

220.20 Pedestrian Barricades and Channelizing Devices—Furnish temporary barricades, barrier, pedestrian fencing, channelizing devices and accessories meeting the requirements set forth in ODOT

00225.12.

Section 225—Work Zone Traffic Control

225.00 Scope—This work consists of providing temporary Traffic Control Measures (TCM), furnishing, installing, moving, operating, maintaining, inspecting, and removing TCD throughout the Project area, and installing Owner-provided project notification signs according to the Drawings, Standard Drawings, the traffic control plan (TCP) for the Project, these Special Provisions, permit requirements, or as directed.

225.01 Abbreviations, Definitions, and Standards:

(a) Abbreviations:

TCM—Traffic Control Measures.

TCP—Traffic Control Plan.

TSS—Temporary Sign Support.

PCMS—Portable Changeable Message Sign.

(b) Definitions:

Traffic Control Measures (TCM)—Elements of the TCP including, but not limited to, TCD, personnel, materials, and equipment used to control public traffic through a work zone.

Traffic Control Plan (TCP)—A written and drawn plan for providing the safe and efficient movement of public vehicle, bike, and pedestrian traffic through or around a work zone while protecting workers, incident responders, and equipment.

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Work Zone—An area within street construction, maintenance, or utility work activities which extends from the first warning sign to the last TCD.

(c) Standards—When designing, applying, installing, maintaining, inspecting, and removing TCD, use and follow the most current versions in effect of the following:

(1) ODOT’s “Sign Policy and Guidelines for the State Highway System.”

(2) The Manual on Uniform Traffic Control Devices (MUTCD).

(3) ODOT’s “Oregon Temporary Traffic Control Handbook for Operations of 3 Days or Less.”

225.02 General Requirements:

(a) Be responsible to provide and maintain all TCM. The City Traffic Engineer may require immediate changes to the TCM being used on the Project. Immediately make these changes, as directed. Submit all proposed TCM revisions to the City Traffic Engineer for approval.

(b) Do not start work on any construction until the TCP has been reviewed and accepted, and all TCM are in place and the TCP is operating satisfactorily. During construction, determine if additional TCM are required to those in place, and immediately notify the Engineer. Immediately make changes as approved or directed, but do not place or remove devices without prior approval.

(c) Work may be suspended or the TCM may be performed by the City if the Contractor fails to correct an unsafe condition. Costs for work performed by the City will be deducted from monies due the

Contractor.

(d) When a cold planed pavement surface is used by traffic, install a 48-inch “BUMP” sign at the transverse paving edge.

(e) The Contractor shall be responsible for obtaining Work in the Right-of-Way permits per subsection

185.40 of the SCS.

(f) Allowable traffic control hours with an approved City of Salem Work in Right-of-Way permit shall be as follows:

(1) Residential Streets: 7 a.m. to 5 p.m. Monday through Friday.

(2) Arterial and Collector Streets: Normally work will be restricted from 8:30 a.m. to 3:30 p.m.

or per the approved Work in the Right-of-Way permit, however the Engineer may decide to require work hours at night or on weekends on streets with very heavy traffic.

225.03 Traffic Control Outside Project Site—Provide TCM outside the Project Site when required.

225.05 Contractor Traffic Control Plan—The City will provide the Contractor a draft of the TCP for their review and approval. The Contractor is responsible for submitting the TCP’s and the Work in Right-of-Way permit application to the Public Works Department at least three full business days prior to construction.

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225.20 General:

(a) Evaluate the condition of TCD using the criteria shown in the most current version in effect of the

American Traffic Safety Services Association (ATSSA) publication titled “Quality Guidelines for

Work Zone Traffic Control Devices.” Use new or acceptable TCD for all installations. Acceptance will be by the ODOT QPL, test results, quality compliance certificates, equipment lists, Drawings, and testing as necessary to assure compliance with Specifications.

(b) All work zone TCD shall comply with the crashworthy requirements of the National Cooperative

Highway Research Program (NCHRP), Report 350.

225.21 Temporary Signing—Furnish temporary signs meeting the requirements of the “Acceptable” category shown in the ATSSA “Quality Standards For Work Zone Traffic Control Devices” handbook, and meeting the requirements set forth in ODOT 00225.11, as supplemented or modified below:

Section 00225 – Work Zone Traffic Control

0225.11 Temporary Signing

(b) Sign Supports—Add the following text to this item:

(5) Metal Sign Supports-Galvanized metal, 2-inch diameter Schedule 40 pipe is an acceptable sign support.

225.22 Temporary Barricades, Guardrail, Barrier, Attenuators, and Pedestrian Fencing—Furnish temporary barricades, guardrail, barrier, attenuators, pedestrian fencing, and accessories meeting the requirements set forth in ODOT 00225.12.

225.23 Temporary Traffic Delineation—Furnish temporary traffic delineation items and accessories meeting the requirements set forth in ODOT 00225.13.

225.25 Temporary Electrical Signs—Furnish electrical signs meeting the following requirements:

(a) Sequential Arrow Signs—Use trailer mounted type “C: sequential arrow signs from the ODOT

QPL.

(b) Portable Changeable Message Signs—Use trailer mounted PCMS units from the ODOT QPL.

225.26 Flagger Station Lighting—Furnish flagger station lighting from the ODOT QPL, and meeting the requirements set forth below:

(a) Illuminates the flagger so that the flagger is visible, and is discernible as a flagger, from a distance of 1,000 feet.

(b) Illuminates the flagger from above at a height of 18 feet ± 3 feet.

(c) The light is shielded from approaching traffic.

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Construction

225.40 General—Install, inspect, move, operate, maintain, and remove temporary TCD according to the

Drawings, these Special Provisions, and the following:

(a) Install, maintain, and move all TCD by working with the direction of traffic.

(b) Provide additional TCM, according to subsection 225.02 of these Special Provisions, when necessary or directed.

(c) Turn, cover, or remove the existing TCD as directed when they are not necessary or conflict with temporary devices. Remove and obliterate, without damaging the wearing surface, all evidence of all temporary TCD when the Contract is completed.

(d) Remove TCD in a sequence reverse to installation. Temporary TCD are to remain the property of the Contractor.

(e) Existing TCD shall remain in operation throughout the Project or until replaced by new, permanent

TCD as appropriate.

225.41 Temporary Signing—Once temporary signs have been accepted and paid for on the Project, do not remove them from the Project until directed by the Engineer. Install all temporary signing according to the Drawings, the MUTCD, the “Sign Policy and Guidelines for the State Highway System,” and the following:

(a) Sign Supports:

(1) Wood Sign Posts—Except as provided in the following (2) through (5), mount all temporary signs on wood sign posts.

(2) Portable Sign Supports—Use portable sign supports when signs are needed at a single location for no more than 72 consecutive hours in accordance with the following:

A. Position the support so the lowest point of the sign is at least 1-foot above the roadway surface.

B. Install flags on signs according to subsection 225.41(b) of these Special Provisions.

C. Remove from road at end of each work shift when the condition is no longer in effect.

D. Use with roll-up signs.

E. Use ballast to prevent blow down.

(3) Concrete Barrier Sign Supports—Mount signs on concrete barrier so that the:

A. Lowest point of the sign is at least 7 feet above the roadway surface.

B. Sign and post are held securely with a device that prevents blow down.

C. Sign can be turned and locked parallel to the flow of traffic when not in use.

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(4) Temporary Sign Supports—Use TSS as follows:

A. When signs are needed at a single location for more than 72 consecutive hours.

B. When not practical to post mount due to location, or when utility conflicts exists.

C. Do not tip over TSS.

D. Position all TSS behind a Type III barricade.

E. When not in use, locate TSS outside the clear zone and turn away from traffic, or cover sign and retain the Type III barricade for delineation.

(5) Metal Sign Supports—Square tube or round pipe sign supports may be used as a substitute for wood sign posts.

(b) Sign Flag Boards and Sign Flags—Where indicated on the Drawings, use two sign flag boards and flags as follows:

(1) Sign Flag Boards—Install two sign flag boards, as shown on the ODOT Standard Drawings.

Sign flags may be used in lieu of sign flag boards.

(2) Sign Flags—Install at least two sign flags above all signs mounted on portable sign supports.

Mount flags so the entire sign is visible.

(c) Amber Flashers—Use either 110/120 volt flashers, or 12 volt rechargeable flashers.

(d) Roll-up Signs—Roll-up signs may be used at a single location for no more than 72 consecutive hours.

(e) Inconsistent Temporary Signs—Ensure that all temporary signs are properly used and consistent with the work zone. When signage is no longer required for staging or shift work, do the following:

(1) Remove from the road all temporary signs, supports, and ballast.

(2) Turn or cover the signs so that the message is not visible to any traffic.

(3) Remove or cover the sign flag boards.

(4) Remove or cover flags with an opaque, black, reflective sheath.

(5) Remove or turn off amber flashers.

(f) Permanent Signing—Install the appropriate permanent signing as required before changing traffic control staging.

225.42 Temporary Barricades, Guardrail, Barrier, Attenuators, and Pedestrian Fencing—Install temporary barricades, guardrail, barrier, attenuators, pedestrian fencing, and accessories as follows:

(a) Barricades—Use and place barricades as shown or as directed.

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(b) Guardrail—Construct temporary guardrail as shown and according to ODOT 00810.

(c) Concrete Barrier—When placing barrier adjacent to a road, maintain a minimum of 24 inches from face of barrier to edge of traffic lane. Flare the leading end as shown in the table below and treat ends with either attenuators or flares.

Speed (MPH) Flare Rate

55 16:1

50 14:1

45 12:1

40 10:1

35 9:1

30 8:1

(d) Impact Attenuators—Assemble and install impact attenuators according to the manufacturer’s recommendations and as follows:

(1) May be placed on pallets, which are no more than 4 inches high, as approved.

(2) Place and fill the modules with the weight of dry sand as shown on the Standard Drawings.

(3) Mix salt with the sand to the proportions recommended by the manufacturer, or at least 5 percent by volume when no manufacturer recommendations are given.

(4) Attach an object marker to the lead module as shown on the ODOT Standard Drawings.

(5) Use attenuators designed for the original pre-construction posted speed.

(6) For narrow site systems, pin or restrain the first two barrier sections as shown on the ODOT

Standard Drawings.

(e) Temporary Pedestrian Fencing—Install temporary pedestrian work zone delineation fencing as shown or as directed.

225.43 Temporary Traffic Delineation—Install and remove traffic delineation items and accessories as follows:

(a) Tubular and Conical Markers—Install tubular or conical markers as shown or directed. Place tubular or conical markers no more than 10 feet apart along both sides of driveways, streets, and road connections within work areas. Within individual runs of tubular or conical markers, use one shape for the entire run. Conical markers may substitute for tubular markers.

(b) Surface Mounted Tubular Markers:

(1) Install surface mounted tubular markers as shown or directed.

(2) Remove surface mounted tubular marker bases in a manner that leaves any remaining adhesive material with a textured surface condition similar to the texture of the surrounding top lift wearing course pavement surface. Make the surface dull and non-reflective. Remove adhesive from the pavement surface using a method that will not damage the pavement surface.

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(c) Plastic Drums—Install plastic drums as shown or as directed.

(d) Delineators—Install traffic delineators as shown on the Drawings or as directed.

(e) Pavement Markers—Use yellow markers for highway centerline. Use white markers for lines between adjacent lanes in the same direction of traffic. Flexible pavement markers shall remain in place until the permanent markings are complete. Remove the markers without damaging the top lift of pavement after the placement of permanent markings through the work area. Unless shown differently on the Drawings, install pavement markers as follows:

(1) Skip Line—Three single markers spaced 5 feet apart to simulate a 10-foot skip line, with a gap of 30 feet to the next skip line.

(2) Solid—Single markers spaced 10 feet apart for solid, no passing lines.

(3) Double Solid—Double markers spaced 10 feet apart for double solid, no passing lines.

(4) Reflective Pavement Markers—Use reflective pavement markers when shown according to

ODOT 00855. Establish alignment with control points at 200-foot intervals on tangents, and at

50-foot intervals on curves.

(5) Flexible Oiling Pavement Markers—Use flexible oiling pavement markers just before applying asphalt for chip seals, sand seals, and oil mats. Remove marker covers before reopening the roadway to traffic.

(6) Flexible Overlay Pavement Markers—Install the markers before reopening the roadway to traffic. Remove the markers on underlying surfaces before placing the next surface layer. Use flexible overlay pavement markers as follows:

A. On surfaces that do not require chip seals, sand seals, and oil mats.

B. On underlying surfaces that temporarily carry traffic.

C. When temporary striping is determined as not practical.

(7) Existing Pavement Marker Removal—Remove and dispose of existing raised or recessed pavement markers as needed for stage construction, or as directed. Remove the markers from permanent wearing course surfaces so the roadway surface is not damaged, and a surface texture similar to that of the surrounding area remains. Make the surface dull and non-reflective. Remove adhesive from the pavement surface using a method that will not damage the pavement surface.

(f) Temporary Tape—Install temporary tape as shown and the following:

(1) Temporary Removable Tape—Install removable tape on existing surfaces or wearing course as shown or as directed. When staging across new bridge deck use temporary removable tape.

(2) Temporary Nonremovable Tape—Install non-removable tape on base courses as shown or as directed.

(3) Temporary Nonreflective Tape—Install non-reflective tape over durable pavement markings to be retained as shown or directed.

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(g) Temporary Striping—Before opening roadways to traffic, unless otherwise allowed, apply temporary painted stripes on pavement base courses, and pavement markers on the wearing surface at locations designated. Immediately remove all unacceptable striping and replace with acceptable striping.

(1) Base Courses—On pavement base courses apply bead binder at a thickness of 15 mils wet, equivalent to 17 gallons/mile for a 4-inch wide solid line. Apply glass beads at a rate of 5 pounds per gallon of paint. Apply 4-inch wide by 10-foot long stripes with 30-foot gaps for skip striping.

Apply a 4-inch wide, continuous stripe for edge line striping.

(2) Wearing Course—On pavement wearing courses use flexible overlay pavement markers or temporary removable tape to simulate lane lines. When a travel lane is adjacent to temporary concrete barrier, replace the edge line with temporary removable tape, as directed. When striping the edge line, use a continuous strip of temporary removable tape.

(3) Durable Permanent Pavement Markings—Unless directed by City Traffic Engineer, do not apply temporary striping for lane line delineation on pavement wearing courses that are to later receive durable permanent pavement markings.

(h) Pavement Edge Delineation—Place tubular or conical markers to delineate the edge of pavement when construction work obscures the painted shoulder stripe (fog line), or when paving creates an abrupt edge drop-off along the shoulder. Locate and maintain the markers as follows:

(1) Between existing delineators.

(2) Space markers as shown for traffic delineators on the Standard Drawings, except do not exceed

200 feet.

(3) Patrol daily and restore them to their proper position at least once in the early morning and once in the late afternoon until the tubular or conical markers are no longer required.

(4) Remove after a new edge stripe has been painted and new delineators are in-place.

(5) Between traffic and abrupt edge.

(6) Place delineation immediately.

(i) Stripe and Legend Removal—Coordinate all removal work with the construction activity. Unless otherwise approved, remove striping, legends, and pavement markers during the same day(s) the traffic shift is accomplished, all in accordance with the following:

(1) When removing striping and legends for stage construction, remove them by sandblasting, hydro-blasting, steel shot blasting, or grinding so the pavement surface is not damaged below a depth of ⅛-inch.

(2) Remove durable markings and durable legends by hydro blasting or grinding the pavement surface to a depth no greater than ⅛-inch, or other approved method, so the pavement surface is not damaged. Do not use paint or asphalt to cover existing stripes. Repair any damaged surfaces to the Engineer’s satisfaction.

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(3) Do not use grinding to remove stripes from the wearing course or existing surfaces, unless the area is to be paved over during the Project.

(4) Use vacuum shrouded equipment or other equally effective containment procedures. Contain and collect all removed paint, durable markings, and spent abrasive, and dispose of according to

ODOT 00290.20.

225.46 Temporary Electrical Items—Provide and install electrical resources as follows:

(a) Sequential Arrow Signs—Use the sequential arrow signs as follows:

(1) Install where the sign is most visible as approved by City Traffic Engineer.

(2) Mount at a height of 7 feet from bottom of sign to ground.

(3) For shoulder work use caution mode only.

(4) Provide a solar/battery power source.

(b) Portable Changeable Message Signs (PCMS)—Use PCMS as follows:

(1) Install beyond the outside shoulder or behind existing barrier or guardrail.

(2) Install where the sign is most visible as approved by the City Traffic Engineer.

(3) Mount at a height of 7 feet from bottom of sign to ground.

(4) Entire message is displayed within 7.5 seconds.

(5) Use a maximum of two panels to display an entire message.

(6) Messages shall not scroll horizontally or vertically across the face of the sign.

(7) When the PCMS is not displaying appropriate messages, as directed, remove the PCMS from the roadway and locate the device outside the clear zone.

(8) Provide a solar/battery power source.

(9) Use clear, concise messages, approved by the City Traffic Engineer.

225.47 Flaggers—If required as part of the TCP, use flaggers as follows:

(a) Locate flaggers far enough in advance of the work area to permit adequate time for the motorist to respond to the flagger’s instructions. All flaggers, including advance flaggers, shall use a STOP/SLOW paddle. Do not use a roll-up STOP/SLOW paddle for non-emergency flagging operations.

(b) During advance flagging operations, only display the SLOW face of the paddle by covering the

STOP face of the paddle with black, opaque, nonreflective material.

(c) Position flaggers, as directed, at locations where traffic can enter the highway within the limits of the work zone. Flaggers shall direct vehicles entering the highway to follow the pilot car line.

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(d) Flagging stations shall be staffed continuously, or until the Engineer determines flagging is no longer required.

225.48 Flagger Station Lighting—Provide continuous flagger station lighting for nighttime flagging as follows:

(a) Locate the light equipment on the same side of the roadway as the flagger, between 5 to 10 feet from the edge of the travel lane, on or beyond the roadway shoulder, or as directed.

(b) Place the flagger station lighting to direct the lighting away from the approaching traffic in the near lane at approximately a 15 degree horizontal angle, ±10 degrees perpendicular to the centerline of the roadway.

(c) Aim all of the luminaires directly at the flagger.

(d) Increase the output wattage or number of luminaires as the luminance from, and number of, surrounding and background lights increases.

Maintenance

225.70 Temporary TCD:

(a) Evaluate the condition of TCD and maintain them using the criteria shown in the current ATSSA publication titled “Quality Guidelines for Work Zone Traffic Control Devices.” Replace all TCD that are in marginal or unacceptable condition with equal devices, in new or acceptable condition, within a time period agreed upon by the Engineer.

(b) Evaluate, maintain, repair or replace TCD, and perform other duties including the following:

(1) Keep the devices in proper position, clean, and legible at all times.

(2) Keep lights, reflectors, and flashers clean, visible, and operable during both daylight and darkness.

(3) Trim or remove vegetative growth or other materials so the devices can be seen.

(4) Verify, by inspection, the effectiveness of the installations at frequent intervals, both in daylight and darkness, at actual travel speeds.

(5) Repair, replace, or restore damaged or destroyed devices to maintain continuity and effectiveness.

(6) Maintain temporary TCD during suspensions of work the same as if work were in progress.

225.71 Signs and Other Existing TCD—Maintain existing guide signs, warning signs, regulatory signs, specific service signs (business logos), tourist-oriented directional signs (TODS), and other existing TCD, in the same manner as temporary signs and devices associated with the Project.

225.72 Temporary Concrete Barrier, Guardrail, and Attenuators—Maintain or replace materials and equipment as follows:

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(a) Temporary Concrete Barrier and Guardrail—Immediately repair, to the Engineer’s satisfaction, or replace any concrete barrier segment or guardrail element that is damaged.

(b) Temporary Impact Attenuators—Complete repair of damaged impact attenuators within 24 hours of being notified of the damage. Replace damaged modules, cartridges, components, and replacement parts with modules, cartridges, components, and replacement parts of the same manufacturer and type, and with attenuation capabilities equal to the original, installed system.

225.76 Portable Electrical Signs—Maintain and use the required portable changeable message signs and sequential arrow signs according to the manufacturer’s recommendations, traffic control plans, and as required. Do not display or alter any sign message before it is approved.

(a) While portable changeable message signs and sequential arrow signs are in use, have repair equipment and parts on the Project Site, as recommended by the manufacturer.

(b) When directed, repair or replace sequential arrow signs and portable changeable message signs that are damaged or destroyed before continuing work that requires use of the signs.

225.77 Flagger Station Lighting—Maintain and use the required flagger station lighting according to the manufacturer's recommendation.

Section 230—Clearing and Grubbing

230.00 Scope—This work consists of removing and disposing of vegetation and buried matter within a specified area. The work also includes preserving vegetation and objects designated to remain in place, and cleanup of the work area.

(a) Areas of Work—Limit clearing lines to the minimum area necessary to complete the Work. Protect

(1) Tree, plant, or natural areas to be preserved as shown on the Drawings or as directed by the

Engineer.

230.01 Definitions:

(a) Clearing—Clearing consists of:

(1) Preserving trees and other vegetation designated to remain in place.

(2) Cutting and removing vegetation, such as weeds, grasses, crops, brush, and trees.

(3) Removing down timber and other vegetative debris.

(b) Grubbing—Grubbing consists of removing:

(1) Brush stems remaining above the ground surface after the clearing work.

(2) Tree stumps.

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(3) Roots and other vegetation found below ground surface.

(4) Partially buried natural objects.

230.40 Clearing Operations:

(a) Noxious Weeds—Remove and dispose of noxious weeds and Specified Weeds according to ODOT

01030 prior to beginning clearing of trees and other vegetation.

(b) Cut Trees/Brush—Cut trees and brush so they fall into the areas specified to be cleared.

(c) Tree Stumps—Cut off tree stumps not required to be grubbed in accordance with the following:

(1) Flush with the ground surface if within the clear zone.

(2) No higher than 4 inches above the ground surface if between the clear zone and the clearing line.

(d) Clean-up—Remove all evidence of clearing matter and debris, including the following:

(1) Sod, weeds, and dead vegetation.

(2) Down timber, brush, and other vegetation.

(3) Sticks and branches with diameters greater than ½-inch.

(4) Dead trees, down timber, stumps, and specified trimmings from areas where live trees and other vegetation are designated to remain.

(e) Preserving Vegetation—Avoid injuring vegetation designated to remain in-place. Preservation of this vegetation includes protection and special care by keeping equipment and materials off of the critical root zone as directed.

(f) Trimming Vegetation—If directed by the Engineer, trim trees according to good tree surgery practices and as directed to remove safety hazards such as:

(1) Unsound branches of trees to remain in-place.

(2) Branches over roadways and bridges to provide at least 20 feet of clearance above the roadway surface.

(3) Branches over walks to provide at least 8 feet of clearance above the walk surface.

(4) Branches obstructing sight distance at intersections or that are impairing visibility of signs.

230.41 Grubbing Operations—Within excavation limits, remove tree stumps, roots, and other vegetation to a depth of at least 6 inches below excavation subgrade or sloped surfaces. Within embankment limits, remove tree stumps, roots, and other vegetation.

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230.42 Ownership and Disposal of Matter—All matter and debris accumulated from clearing and grubbing operations become the Contractor’s property at the place of origin. Dispose of this matter and debris according with ODOT 00290.20(c).

230.43 Backfilling Holes—Except in areas to be excavated, backfill holes remaining after grubbing operations with clean fill according to Section 235 of these Special Provisions.

Section 231—Removal of Structures and Obstructions

231.00 Scope—This work consists of removing and disposing of man-made materials and cleaning up areas they occupy.

231.01 Areas of Work—Perform removal work in the same areas as specified in subsection 230.00(a) of these Special Provisions. If a building to be removed lies partly within the right-of-way, remove the entire building unless otherwise shown or directed.

231.02 Exclusions—Removal work does not include removal or disposal of materials which are:

(a) Designated to remain.

(b) Included in earthwork as given in subsection 235.41 of these Special Provisions.

(c) Specifically indicated by the Specifications, Drawings, or Special Provisions to be removed, incidental to other items of work under the Contract.

(d) Owned or controlled by third parties.

231.40 Restrictions on Removal Work:

(a) Traffic Safety Structures—In areas where traffic safety structures are to be removed and replaced, the following apply:

(1) Install the replacement units during the same working shift the existing unit is removed.

(2) Protect the area with temporary, precast concrete barrier units until the new or salvaged unit is installed.

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231.41 Removal Work:

(a) General—Where an abutting structure or a part of a structure is to be left in-place, make cuts that protect remaining structures and allow for specified connections.

(b) Guard Rail Posts—Remove posts completely and backfill holes with selected granular backfill material.

(c) Drainage Structures—Remove drainage structures, such as box culverts, down to a depth 2 feet below ground, slope, or waterway bed. Remove culverts, sewers, and other conduits according to

Section 235 of these Special Provisions.

(d) Materials Within Construction Areas:

(1) General—Remove materials within construction areas entirely, or break down the materials to an elevation at least 2 feet below subgrade or slope surface as allowed below.

(2) Bituminous Treated Surfaces—Scarify and break up existing bituminous treated surface when it lies under subgrade.

(3) Concrete Floors, Slabs, and Walls—Before placing material in basements or over concrete slabs, remove or break through the floors, slabs, and walls so that no fragments of the floors, slabs, and walls have a dimension in excess of 15 inches, and there is no protruding reinforcement.

231.42 Disposal of Material—Dispose of materials according to ODOT 00290.20(c).

231.43 Repair of Damages—Promptly repair any breakage or damage to materials or items not intended to be removed. Complete replacement of the affected materials may be required if the Engineer determines it is necessary.

Section 235—Earthwork

235.00 Scope—This work consists of excavation, ditching, embankment construction, and other earth-moving work required in the construction of the Project.

235.01 Terms—The term “earthwork” will be used as a general term to designate the work included within the scope of this Section.

235.02 Definitions:

(a) Abandoned Pipes and Miscellaneous Matter—Sewers, pipes, conduits, logs, timbers, concrete, and other structures, materials, objects, and matter encountered in the Work, excepting only items identified for removal or preservation.

(b) Overbreak—Material beyond and outside of the slope limits established by the Engineer, which becomes displaced or loosened during excavation, and is excavated.

(c) Selected Materials—Those materials with pertinent characteristics that are preserved and sorted as directed from specified excavations, and handled for specific uses.

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235.03 Sources of Borrow—Unless otherwise specified, all borrow shall be furnished by the Contractor.

Sources shall lie wholly outside of and beyond the limits of City-controlled lands.

235.20 Selected Materials—When the Contract contains the pay item “Extra for Selected Material,” furnish the material from the required excavations.

235.21 Selected Topsoil—Furnish topsoil that is the fertile part of a soil profile commonly referred to as the “A” horizon, typically ranging in depth from 3 inches to 12 inches. Do not take material for topsoil from a depth greater than 12 inches below existing ground, unless approved. Select only sources that are well-drained and, before stripping, have a healthy crop of vegetative growth. Remove all heavy grass or other vegetation before taking materials from the source.

235.22 Borrow Material—Furnish borrow materials for general embankment construction with soil that is free of unsuitable materials or other characteristics detrimental to the construction of firm, dense, and sound embankments. Furnish borrow materials for other uses meeting the specified requirements for the use intended.

235.23 Selected General Backfill—Soil, selected as directed from specified excavations, and containing no particle with any dimension greater than 3 inches, or other unsuitable material.

235.24 Selected Granular Backfill—Durable sand, gravel, or combinations of these, selected as directed from specified excavations, and containing no particle with any dimension greater than 3 inches, or other unsuitable material.

235.25 Selected Stone Backfill—A combination of durable sand, gravel, and cobbles, selected as directed from specified excavations, which contains no particle with any dimension greater than 6 inches, and no unsuitable material.

235.40 General—There is no guarantee that any material available on the Project Site is suitable for incorporation into any portion of the Project. Contractor shall ensure there is sufficient suitable material available to complete embankments and other required fills before disposing of any excavated materials.

(a) Preservation of Existing Surfaces—Protect existing surfaces of all types which are to remain in-place from being damaged or fouled with undesirable material. Repair or replace damaged or fouled surfaces as directed.

(b) Avoidance and Correction of Detrimental Operations—Perform all operations involved in excavating, hauling, and placing of earthwork materials so no damage or…