Exhibit 1 - Special Provisions~4.pdf

SPECIAL PROVISIONS

FOR HIGHWAY MAINTENANCE CONSTRUCTION

OREGON DEPARTMENT OF TRANSPORTATION

SALEM, OREGON

PAVING AND BARRIER

BARRIER GATE PILOT PROJECT

COLUMBIA RIVER HIGHWAY

MULTNOMAH AND HOOD RIVER COUNTIES

APRIL 2025

Barrier Gates Pilot Project iii

TABLE OF CONTENTS FOR SPECIAL PROVISIONS

WORK TO BE DONE

SUPPLEMENTAL SPECIAL PROVISIONS

UTILITY INFORMATION

AGENCY FURNISHED MATERIALS

APPLICABLE SPECIFICATIONS

CLASS OF PROJECT

SECTION 00210 - MOBILIZATION

SECTION 00220 - ACCOMMODATIONS FOR PUBLIC TRAFFIC

SECTION 00221 - COMMON PROVISIONS FOR WORK ZONE TRAFFIC

CONTROL

SECTION 00222 - TEMPORARY TRAFFIC CONTROL SIGNS

SECTION 00223 - WORK ZONE TRAFFIC CONTROL LABOR AND VEHICLES

SECTION 00224 - TEMPORARY TRAFFIC CHANNELIZING DEVICES

SECTION 00226 - TEMPORARY ROADSIDE BARRIERS AND IMPACT

ATTENUATORS

SECTION 00310 - REMOVAL OF STRUCTURES AND OBSTRUCTIONS

SECTION 00594 - PREPARING AND COATING METAL STRUCTURES

SECTION 00620 - COLD PLANE PAVEMENT REMOVAL

SECTION 00730 - EMULSIFIED ASPHALT TACK COAT

SECTION 00745 - ASPHALT CONCRETE PAVEMENT - STATISTICAL

ACCEPTANCE

SECTION 00820 - CONCRETE BARRIER

FOR

PAVING AND BARRIER

BARRIER GATE PILOT PROJECT

COLUMBIA RIVER HIGHWAY

MULTNOMAH AND HOOD RIVER COUNTIES

PROFESSIONAL OF RECORD CERTIFICATION:

I certify the Special Provision Section(s) listed below are applicable to the design for the subject project for removal of structures and obstructions, cold plane pavement removal, emulsified asphalt tack coat, asphalt concrete pavement statistical acceptance, and concrete barrier. Modified Special Provisions were prepared by me or under my supervision.

Section(s) 00310, 00594, 00620, 00730, 00745, 00820

FINAL ELECTRONIC DOCUMENT AVAILABLE UPON REQUEST

2025.03.06 11:38:41 -08'00'

FOR

PAVING AND BARRIER

BARRIER GATE PILOT PROJECT

COLUMBIA RIVER HIGHWAY

MULTNOMAH AND HOOD RIVER COUNTIES

PROFESSIONAL OF RECORD CERTIFICATION:

Seal w/signature I certify the Special Provision Section(s) listed below are applicable to the design for the subject project for mobilization, accommodations for public traffic, common provisions for work zone traffic control, temporary traffic control signs, work zone traffic control labor and vehicles, temporary traffic channelizing devices, and temporary roadside barriers and impact attenuators.

Modified Special Provisions were prepared by me or under my supervision.

Section(s) 00210, 00220, 00221, 00222, 00223, 00224, 00226

FINAL ELECTRONIC DOCUMENT AVAILABLE UPON REQUEST

2025.02.25 10:14:34

FOR

PAVING AND BARRIER

BARRIER GATE PILOT PROJECT

COLUMBIA RIVER HIGHWAY

MULTNOMAH AND HOOD RIVER COUNTIES

PROFESSIONAL OF RECORD CERTIFICATION:

Seal w/signature I certify the Special Provision Section(s) listed below are applicable to the design for the subject project for mobilization, accommodations for public traffic, common provisions for work zone traffic control, temporary traffic control signs, work zone traffic control labor and vehicles, temporary traffic channelizing devices, and temporary roadside barriers and impact attenuators.

Modified Special Provisions were prepared by me or under my supervision.

Section(s) 00210, 00220, 00221, 00222, 00223, 00224, 00226

FINAL ELECTRONIC DOCUMENT AVAILABLE UPON REQUEST

2025.02.25 10:14:34

WORK TO BE DONE

The Work to be done under this Contract consists of the following:

1. Construct asphalt concrete pavement.

2. Install barrier gates.

3. Perform additional and Incidental Work as called for by the Specifications and Plans.

SUPPLEMENTAL SPECIAL PROVISIONS

1. The quantities in the bid item list are intended to serve only as a guide to bidders, and are not to be construed as a guarantee. All quantities are estimated, and are for bid purposes only. The quantity for each bid item includes all labor, equipment and materials for all activities associated with this project. The Oregon Department of Transportation (ODOT) reserves the right to adjust quantities and add or delete, as needed.

2. Contractor shall provide a schedule to the Project Manager seven (7) days prior to the pre-construction meeting to allow for review.

3. Contractor shall schedule a pre-construction meeting with the Project Manager seven (7) days prior to the proposed start of construction.

4. The Engineer will perform the Agency responsibilities described in the Construction Surveying Manual for Contractors, Chapter 1.5 (see Section 00305).

5. The Contractor shall perform the Contractor responsibilities described in the Construction Surveying Manual for Contractors, Chapter 1.6 (see Section 00305). The Contractor shall perform slope staking including intersections and set stakes defining limits for clearing which approximate Right-of-Way and easements.

6. Any illegal camp cleanup required prior to the start of work will be coordinated by ODOT.

The Contractor shall notify the Project Manager 10 working days before the scheduled start date to allow for the cleanup to be posted and completed. Contractor to account for this time in their schedule. Contractor shall occupy the site and begin work immediately following the camp cleanup. If there is evidence that additional cleanups will be required based on camper presence or personal property found at the site, notify the Project Manager so it can be scheduled. Contractor may not move or remove any personal property from the site. No monetary compensation will be considered for any camp cleanup delay.

7. Any illegal camp cleanup required after the start of work will be coordinated by ODOT.

The Contractor shall notify the Project Manager to allow for the cleanup to be posted and completed. Contractor shall occupy the site and continue work immediately following the camp cleanup. If there is evidence that additional cleanups will be required based on camper presence or personal property found at the site, notify the Project Manager so it can be scheduled. Contractor may not move or remove any personal property from the site. Any time delay caused by campers occupying the site after the start of work, when they had not been present prior to the start of work, will be added to the end of the contract. No monetary compensation will be considered for any camp cleanup delay.

8. Cooperation with Other Contractors – The Agency reserves the right to perform other work on or near the Project Site, including, without limitation, any Materials site, with forces other than those of the Contractor.

If such work takes place on or near the Project Site, the Contractor shall have the following obligations:

• The Contractor shall coordinate Work with other contractors or forces.

• The Contractor shall cooperate in good faith with all other contractors or forces.

• The Contractor shall perform the Work specified in the Contract in a way that will minimize interference and delay for all forces involved.

• The Contractor shall place and dispose of the Materials being used so as not to interfere with the operations of other forces.

• The Contractor shall join the Work with that of all other forces in a manner acceptable to the Engineer or the Agency, and shall perform it in the accepted sequence with the work of the other force.

The Project Manager will resolve any disagreements under this supplemental special provision that may arise among the Contractor and other work forces, or between the Contractor and the Agency. The Project Managers decision in these matters is final.

When the schedules for Work of the Contractor and the work of other forces overlap, each contractor involved shall submit a current, realistic progress schedule to the Project Manager.

Before the Project Manager accepts the schedule, each party shall have the opportunity to review all schedules. After this review and any necessary consultations, the Project Manager will determine acceptable schedules.

The Contractor waives any right it may have to make claims against the Agency for any damages or claims that may arise because of inconvenience, delay, or loss due solely to the presence of other contractors working on or near the Project Site.

9. Contractor shall provide weigh slips for each load of material measured on the weight basis placed in performance of Work under the Contract. Contractor shall collect all weigh slips during the shift and give the group of them to the inspector at the end of the shift.

10. Changes to the scope and/or limits of work are to be requested in writing to the Owners Authorized Representative. The Owners Authorized Representative will respond in writing with approval or denial of the change(s). ADA ramp upgrades that are triggered due to unauthorized changes to the scope and/or limits of work are the Contractors responsibility to remedy. Contractor, or their designated representative, will design and construct the ADA ramp upgrades per ODOT standards at no expense to the Agency. ADA ramp upgrades must follow the triggering activity in a timely manner.

11. Contractor’s employees and their subcontractors may not wear clothing, hats, vests, etc. that have the ODOT name or “flying T” symbol.

12. There is public interest in the work. Contractor is advised to use courtesy and respect in any work site interaction with the public and to refer all public relations matters to the ODOT Project Manager.

13. Contractor shall implement safety policies, procedures and practices in conformance with all applicable local, state and federal laws, rules and regulations including but not limited to:

a. Applicable OSHA safety regulations

b. ANSI Z 133.1 Safety standards agreed upon by ODOT and local jurisdiction

c. The Manual of Uniform Traffic Control Devices (MUTCD)

d. Any other applicable safety laws, regulations and codes.

14. All equipment utilized during this contract shall be in good and serviceable condition.

15. Correspondence for the project is required to have the project name in the subject line.

16. Responsibility for Damage to Property and Facilities – In addition to the provisions of Section G.1, the Contractor, Contractor’s agents, Subcontractors, and all workers performing Work under the Contract (collectively, the “Contractor”), shall:

a. Determine the location of all properties and facilities, Agency and Non-Agency, that could be damaged by the Contractor’s operation, and protect them from damage;

b. Provide adequate protection to avoid damaging Agency and Non-Agency property and facilities;

c. Be responsible for damage to Agency and Non-Agency property and facilities caused by or resulting from the Contractor’s operations;

d. Clean up and restore such damage to the condition that existed before the damage, by repair, rebuilding, replacement, or compensation, as determined by the Engineer;

e. Protect monuments and property marks until the Engineer has authorized their removal;

f. Provide temporary facilities when needed until the required repair, rebuilding, or replacement is accomplished.

UTILITY INFORMATION

The Project is located within the area served by the Oregon Utility Notification Center, which operates a Utilities notification system for notifying owners of Utilities about Work being performed in the vicinity of their facilities. The Contractor shall notify owners of Utilities prior to the performance of Work in the vicinity of their facilities. The Utilities notification system telephone number is 811 or 1-800-332-2344.

The Contractor shall comply with the rules of the Oregon Utility Notification Center, OAR 952-001-0010 through OAR 952-001-0090, and ORS 757.993. The Contractor may contact the Oregon Utility Notification Center at 503-232-1987 about these rules.

Within the Project limits, there are no anticipated Utility relocations or conflicts.

AGENCY FURNISHED MATERIALS

Materials listed as Agency-furnished will be available to the Contractor free of charge.

The Contractor shall be responsible for all Materials furnished by the Agency and shall pay all demurrage and storage charges. The Contractor shall replace at its expense Agency-furnished Materials lost or damaged due to any cause.

All costs of handling, hauling, unloading, and placing Agency-furnished Material shall be considered included in the price paid for the Pay Item involving such Material.

All Agency-furnished Materials not incorporated into the Work remain the property of the Agency. The Contractor shall deliver such Materials as directed by the Engineer.

The Agency will furnish 3 barrier gate assemblies at 9200 SE Lawnfield Rd., Clackamas, OR, 97015.

APPLICABLE SPECIFICATIONS

The 2024 Oregon Standard Specifications for Construction (“Standard Specifications”) include detailed technical specifications in Sections 00200 and beyond that apply to this ITB and any resulting Contract. Some sections of the technical specifications may be identified and modified in the Plans and Special Provisions. Sections of the technical specifications not identified in the Plans and Special Provisions remain applicable to the Contract according to their original terms.

Sections in Part 00100 of the Standard Specifications (General Conditions) are not applicable to the Contract unless they are specifically identified in the Plans and Special Provisions as being applicable. However, if a Part 00100 section that has been identified as being applicable references another section in Part 00100, or a technical specification (Parts 00200 and beyond) references a section from Part 00100, that section from Part 00100 applies to the Contract for purposes of supporting and giving full effect to the specification that referenced it. Bidders can access the Standard Specifications online at:

http://www.oregon.gov/ODOT/Business/Pages/Standard_Specifications.aspx

All number references in these Special Provisions shall be understood to refer to the Sections and subsections of the Standard Specifications bearing like numbers and to Sections and subsections contained in these Special Provisions in their entirety.

Conventions Used Throughout the Specifications - The "2024 Oregon Standard Specifications for Construction", Parts 00200 through 03000, the detailed "Technical Specifications", are generally written in the imperative mood, in which the subject is implied.

Therefore, throughout these Specifications, Parts 00200 through 03000, and on the Plans:

• The subject, "the Contractor", is implied.

• "Shall" refers to action required of the Contractor, and is implied.

• "Will" refers to decisions or actions of the Agency and/or the Engineer.

• “The Engineer” refers to The Chief Engineer of the Agency acting either directly or through authorized representatives. If the Agency has not designated a Chief Engineer, this term denotes the person responsible for administering its public works program.

• The following words, or words of equivalent meaning, refer to the actions of the Agency and/or the Engineer, unless otherwise stated: "allowed", "directed", "established", "permitted", "ordered", "designated", "prescribed", "required", "determined".

• The words "approved", "acceptable", "authorized", "satisfactory", "suitable", "considered", and "rejected", "denied", "disapproved", or words of equivalent meaning, mean by or to the Agency and/or the Engineer, subject in each case to Section 00150 of the General Conditions.

• The words "as shown", "shown", "as indicated", or "indicated" mean "as indicated on the Plans".

CLASS OF PROJECT

This is a State Project.

http://www.oregon.gov/ODOT/Business/Pages/Standard_Specifications.aspx

SECTION 00210 - MOBILIZATION

Comply with Section 00210 of the Standard Specifications.

SECTION 00220 - ACCOMMODATIONS FOR PUBLIC TRAFFIC

Comply with Section 00220 of the Standard Specifications modified as follows:

00220.40(e)(1) Closed Lanes - Replace this subsection, except for the subsection number and title, with the following:

Traffic Lanes may be closed on the Columbia River Highway (I-84) when allowed, shown, or directed during the following periods of time except as specified in 00220.40(e)(2):

Single Lane Closures – One Traffic Lane in each direction on the Columbia River Highway (I-84) may be closed during the following times:

M.P. 11.38:

• Nightly, between 8:00 p.m. and 6:00 a.m.

M.P. 29.32 and M.P. 47.55:

Prior to May 16th, 2025

• Weekly, between Sunday at 5:00 p.m. and Thursday at 4:00 p.m.

• Thursday night through Friday morning, 7:00 p.m. through 7:00 a.m.

May 16th, 2025 and after

• Nightly, Sunday night through Friday morning, 7:00 p.m. through 7:00 a.m.

SECTION 00221 - COMMON PROVISIONS FOR WORK ZONE TRAFFIC CONTROL

Comply with Section 00221 of the Standard Specifications modified as follows:

00221.06 Traffic Control Plan - Replace this subsection with the following subsection:

00221.06 Traffic Control Plan and Tourist-Oriented Directional and Business Logo Signs –

(a) Traffic Control Plan - Submit one of the following, 5 Calendar Days before the preconstruction conference:

(1) Agency Traffic Control Plan - If the Contractor intends to use the Agency TCP without modification, a written notification indicating that the Agency TCP will be used without modification.

(2) Contractor-Modified Traffic Control Plan - The Contractor may request to use a Contractor-modified Agency TCP, or a TCP developed by the Contractor. Do not use a modified TCP, or a TCP developed by the Contractor, unless approved by the Engineer. Use the Agency TCP unless a modified TCP, or a TCP developed by the Contractor is accepted.

The Engineer is not obligated to consider any modified Agency TCP or a TCP developed by the Contractor. The Agency will not be liable to the Contractor for failure to accept or act upon any request for a modified Agency TCP or a TCP developed by the Contractor.

To conserve time and funds, the Contractor may first submit a written request for a preliminary review by the Engineer. The request should contain a description of the proposal together with a rough estimate of anticipated dollar and time impacts. The Engineer will, within a reasonable time, respond to the Contractor in writing whether or not the request would be considered by the Agency.

If requesting a Contractor-modified Agency TCP, or a TCP developed by the Contractor, at a minimum the request shall meet all requirements of the Contract documents and comply with the Project transportation management plan (TMP).

Provide the following information:

• Stamped Working Drawings according to 00150.35 that include the proposed TCP showing all TCM and quantities of TCD.

• A TPAR plan that includes:

• Details and features used to provide pedestrian accessibility.

• Pedestrian staging Plans at a scale no smaller than 1 inch = 50 feet.

• Temporary alternate facilities or detour routes for pedestrian traffic.

• Staging sequences and details for Work affecting vehicular, pedestrian, and bicycle traffic.

• Proposed order and duration of the TCM.

• A detailed temporary striping plan.

If the Contractor’s request to use a Contractor-modified Agency TCP, or a TCP developed by the Contractor is approved in whole or in part, acceptance will be made by a Change Order.

The Engineer will establish prices that represent a fair measure of the value of Work to be added, changed, or deleted as a result of any accepted modifications to the Agency TCP or an accepted TCP developed by the Contractor.

Once a TCP has been accepted by the Engineer, any additional modifications must be submitted by the Contractor for Agency review following the procedure described above. The Engineer is not obligated to consider additional modifications to a previously approved TCP.

(b) Tourist-Oriented Directional and Business Logo Signs - Submit one of the following for approval, at least 5 Calendar Days before the preconstruction conference:

(1) No Signs - If there are no tourist-oriented directional (TOD) or business logo signs on the Project, a written notification that no TOD or business logo signs exist within the Project limits or

(2) Signs - Submit one copy of a sketch map of the Project showing all existing TOD and business logo signs and a written narrative describing how these signs will be kept in service and protected throughout all the construction stages. If modifications are necessary, submit updated information to the Engineer for approval at least 21 Calendar Days before the change is needed.

00221.90(b) Temporary Protection and Direction of Traffic – Replace the bullet that begins “Providing, Surfacing, maintain…” with the following bullet:

• Providing, surfacing, maintaining, removing, and restoring the TPAR.

SECTION 00222 - TEMPORARY TRAFFIC CONTROL SIGNS

Comply with Section 00222 of the Standard Specifications modified as follows:

00222.40(e) Temporary Sign Placement - Add the following to the end of the bullet list:

• Install a 54-inch "TRUCKS LEAVING HIGHWAY XXXX FT" sign in advance of each entrance point to the Work Area at sign spacing “A” from the “TCD Spacing Table” shown on the Standard Drawings. Install a 54-inch "TRUCKS ENTERING HIGHWAY XXXX FT" sign in advance of each exit point from the Work Area at sign spacing “A” from the “TCD Spacing Table” shown on the Standard Drawings.

• Install "ROAD WORK AHEAD" (W20-1-48) signs with a 36 by 24-inch "FINES

DOUBLE" (R2-6aP) rider on the Columbia River Highway, according to the "TCD Spacing Table" shown on the Standard Drawings or as modified by the Plans except do not install the "FINES DOUBLE" rider on concrete barrier mounted signs.

• Install beyond each end of the Project, facing outgoing traffic, an "END ROAD WORK"

(CG20-2A-24) sign a distance of (A ÷ 2) according to the "TCD Spacing Table" shown on the Standard Drawings or as modified by the Plans.

• Install a 72 by 24-inch "CONSTRUCTION VEHICLE DO NOT FOLLOW" (CW23-14) sign on rigid substrate on the back of all Material or Equipment delivery vehicles.

SECTION 00223 - WORK ZONE TRAFFIC CONTROL LABOR AND VEHICLES

Comply with Section 00223 of the Standard Specifications.

SECTION 00224 - TEMPORARY TRAFFIC CHANNELIZING DEVICES

Comply with Section 00224 of the Standard Specifications.

SECTION 00226 - TEMPORARY ROADSIDE BARRIERS AND IMPACT ATTENUATORS

Comply with Section 00226 of the Standard Specifications modified as follows:

00226.43 Truck Mounted Attenuator – Replace the paragraph that begins “When workers or construction Equipment…” with the following paragraphs:

Use a truck mounted impact attenuator (TMA), when workers or construction Equipment are exposed to Public Traffic on a Freeway or Multi-Lane Highway and are not located behind a rigid barrier system, as follows unless otherwise shown or directed:

• Each Shoulder or each lane closure where the preconstruction posted speed is 45 mph or more.

Place the TMA in advance of the exposed workers or Equipment, located as shown in the TMA Support Vehicle Placement tables, or as directed. If the TMA is not available when the Work requires its use, postpone the Work until the TMA is available.

00226.80(b)(2) Temporary Barrier - Add the following to the end this subsection:

The quantities will be limited to those shown in Table 00226-1. The estimated quantity of Temporary Barrier is:

TABLE 00226-1

Stage/Phase Location (STA to STA)

Temporary Barrier (foot)

Temporary Barrier, Minimum Deflection

(foot) I-84 M.P. 11.38 125

I-84 M.P. 29.32 125 I-84 M.P. 47.55 150

Total Quantity 400

SECTION 00310 - REMOVAL OF STRUCTURES AND OBSTRUCTIONS

Comply with Section 00310 of the Standard Specifications.

SECTION 00594 - PREPARING AND COATING METAL STRUCTURES

Comply with Section 00594 of the Standard Specifications modified as follows:

00594.10 Materials - Add the following to the end of the subsection:

Furnish coating materials for metal galvanized guardrail transition and guardrail terminal materials according to Non-Steel Metallic Substrates except the color shall be brown that closely matches aged weatherized steel. Submit samples to the Engineer for review and approval.

00594.90(a) New Metal Structures - Replace this subsection, except for the subsection number and title, with the following:

No separate payment will be made for preparing and coating new metal Work. Payment for this Work, including correction of damages, will be included in payment made for appropriate items under which this Work is required.

SECTION 00620 - COLD PLANE PAVEMENT REMOVAL

Comply with Section 00620 of the Standard Specifications modified as follows:

00620.43 Maintenance Under Traffic - Replace this subsection, except for the subsection number and title, with the following:

Traffic is not allowed on the cold planed surface. Before opening the area to traffic, pave the surface according to 00745.51.

SECTION 00730 - EMULSIFIED ASPHALT TACK COAT

Comply with Section 00730 of the Standard Specifications modified as follows:

00730.11 Emulsified Asphalt – Replace the sentence that begins “Furnish CSS-1, CSS- 1h…” with the following sentence:

Furnish CSS-1, CSS-1h, CMS-2, CMS-2S, CMS-2h, CRS-1, CRS-2, HFRS-2, HFMS-2 or HPTC as selected by the Contractor.

00730.90 Payment - Replace this subsection, except for the subsection number and title, with the following:

No separate or additional payment will be made for Emulsified Asphalt tack coat.

Approximately 1 Tons of Emulsified Asphalt in tack coat will be required on this Project.

SECTION 00745 - ASPHALT CONCRETE PAVEMENT - STATISTICAL ACCEPTANCE

Comply with Section 00745 of the Standard Specifications modified as follows:

00745.11(b) Asphalt Cement Additives – Delete the bullet that begins “Anti-stripping asphalt cement…”

00745.47(a)(2) Wearing Course - Replace this subsection, except for the subsection number and title, with the following:

Construct longitudinal joints six inches from permanent lane markings, or as shown or directed.

00745.48(c) Bridge Deck Overlays - Replace the paragraph that begins "Saw cut the wearing Course of Pavement …" with the following paragraph:

Sawcut the wearing or base Course of Pavement directly over the joints in bridge decks, bridge end joints and end Panel end joints as soon as practical but within 48 hours of paving each stage of the wearing or base Course, unless otherwise directed. Saw the cut 3/8 inch wide, ± 1/8 inch, by 1/2 inch less than the thickness of the Panel of Pavement depth or 1 1/2 inches deep, whichever is less.

00745.51 Opening Sections to Traffic - Schedule Work so that, during the same shift, the surfaces being paved are paved full width and length through the wearing Course before opening to traffic.

The quantities of ACP shown in the Contract Schedule of Items were computed on the basis of Aggregates having a specific gravity of 2.7.

SECTION 00820 - CONCRETE BARRIER

Comply with Section 00820 of the Standard Specifications modified as follows:

00820.00 Scope – Add the following paragraph to the end of this subsection:

This Work also consists of furnishing and installing barrier gates at locations shown or as directed.

00820.10 Materials – Add the following items to the end of the list:

Structural Steel Fasteners

Add the following paragraph to the end of this subsection:

Paint all galvanized metal guardrail transition and guardrail terminal Materials according to Section 00594.

Paint all barrier a shade of brown that closely matches SAE AMS-STD-595 Brown #30059 and adjacent existing barrier. Submit samples to the Engineer for review and approval.

Add the following subsection:

00820.11(f) Swivel Caster - Furnish swivel casters with a load rating of at least 3500 lbs., a diameter of 8 inches, and mounting holes to match caster mounting plates as shown.

00820.40 General – Add the following paragraph to the end of this subsection:

Install barrier gates as shown or as directed.

00820.80 Measurement – Add the following paragraph to the end of this subsection:

The quantities of barrier gates will be measured on the unit basis.

00820.90 Payment – Add the following item to the end of the pay item list:

(g) Barrier Gates ........................................................................... Each

Add the following paragraph after the paragraph that begins “Item (d) includes…” and before the paragraph that begins “Payment will be…”:

Item (g) includes barrier transitions for the barrier gates.