CONTRACT DOCUMENTS

FOR

OREGON DEPARTMENT OF AVIATION

INDEPENDENCE STATE AIRPORT (7S5)

PAPI REPLACEMENT

ATTACHMENT C – TECHNICAL SPECIFICATIONS

OWNER:

Oregon Department of Aviation

3040 25th St. SE Salem, OR 97302

ENGINEER:

Century West Engineering

5500 Meadows Rd., Suite 250

Lake Oswego, OR 97035

Phone: 503.419.2130

APRIL 2026

This Page Left Intentionally Blank

ATTACHMENT C – TECHNICAL SPECIFICATIONS

TABLE OF CONTENTS

• Section 01160 General Requirements

• Section 01200 FOD Prevention Controls

• Section 01300 Airport Safety

• Section 01406 Construction Staking

• Section 01700 Project Closeout

• Item C-102 Temporary Air and Water Pollution, Soil Erosion, and Siltation

Control

• Item C-105 Mobilization

• Item T-901 Seeding

• Item L-108 Underground Power Cable for Airports

• Item L-110 Airport Underground Electrical Duct Banks and Conduits

• Item L-125 Installation of Airport Lighting Systems

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01160 GENERAL REQUIREMENTS

1.00 GENERAL SCOPE

1.01 Location and Plans. The Independence State Airport is owned by the Oregon

Department of Aviation (ODAV) and is located in Independence, Oregon. For the purpose of this contract, the terms Airport and Owner are considered the same.

The contract plans for this project contain 9 sheets titled “Independence State

Airport, PAPI Replacement”.

1.02 Airport Security. During the course of the contract, the Contractor shall be responsible for maintaining security against unauthorized access to the Airport. The

Contractor will be held responsible for any fines, damages, or civil penalties filed against the Oregon Department of Aviation and Independence State Airport for the

Contractor's failure to maintain the regulations set forth herein.

The Contractor shall be fully responsible for compliance of all employees with the

Airport security program and following regulations and orders of the Airport management. These regulations may affect identification requirements of employees and subcontractors, movement around the Airport, parking, entry, and other circumstances affecting the safety or protection of persons or property. The security requirements are subject to change at any time during the project without prior notice.

For the intent and purpose of these regulations, Air Operations Area (AOA) is construed to mean any area used or intended to be used for takeoff, landing, or surface maneuvering of aircraft, and all other areas restricted to public access on the field. Work boundaries within the AOA shall be established as shown on the drawings. Only Contractor's employees are permitted in the work sites.

The term “gate” used herein shall mean any controlled, securable opening in the security fence. The Contractor must enter and exit the AOA only through the gates designated by the Engineer. Deliveries to work sites will be controlled by the

Contractor or, if applicable, a security gate guard (employed by the Contractor), who will record name and license of driver, vehicle license, and times in and out. The

Contractor shall keep the gates locked and secured at all times when not in use.

The Contractor shall account for Airport-issued keys and access cards in a manner approved by the Airport.

Within the AOA, all equipment, vehicle, and personnel travel shall be restricted to designated work sites.

Only vehicles used for construction purposes shall enter the Air Operations Area.

Contractor personnel shall park their personal vehicles within a designated staging area.

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FAA-approved orange and white checkered flags shall be provided by the Contractor on all vehicles and equipment within the Airfield.

During night operations, each vehicle entering the Air Operations Area shall be equipped with a yellow flashing light mounted on the roof of the cab. Headlights, taillights, and flashers shall be used for all activities during these hours.

In the event of an emergency, personnel and equipment shall move immediately to the staging area.

1.03 Layout of the Work. The Contractor will do all the construction surveying on the project. The Engineer will provide vertical and horizontal reference control points in the proximity of the work. The Contractor should refer to Section 01406, “Construction Staking”, for specific requirements.

1.04 Completion Time. All items of contract work shall be substantially complete within the time period specified in the “Proposal” and the “Contract” or “Agreement”.

1.05 Environmental Codes and Regulations. The Contractor shall comply with provisions of Federal, State and local statutes, ordinances and regulations dealing with the prevention of environmental pollution and the preservation of natural resources that affect the project.

If the Contractor must undertake additional work due to the enactment of new or the amendment of existing statutes, ordinances and regulations dealing with the prevention of the successful bid, the Airport will issue a supplemental agreement setting forth the additional work that must be undertaken. The supplemental agreement shall not invalidate the contract and there shall be, in addition to a reasonable extension of contract time, if necessary, a reasonable adjustment in the contract price to compensate the successful bidder for all costs and expenses incurred, including overhead and profits, as a result of the additional work.

1.06 Special Permits. The Contractor shall pay for and obtain any and all permits required for construction of the work.

1.07 Inspection and Testing. All tests called for in the specifications or deemed necessary by the Engineer will be performed by the Engineer, except when indicated otherwise in the specifications. The Engineer will perform quality assurance testing when, in the opinion of the Contractor, the work area to be tested is prepared and will meet the required specifications. Contractor shall schedule testing at least 48 hours in advance of when he is ready for the test. Hot mix asphalt testing shall be scheduled a minimum of 14 days in advance of beginning paving. In the event test results do not meet the specifications, any cost for re-testing as may be required by the Engineer shall be at the Contractor's expense, charged at the rate established in the Engineer's standard fee schedule.

1.08 Contractor's Staging Area. An area (or areas) will be set aside on the Airport property for the Contractor's use as a staging area for personnel, equipment, and materials. The Contractor shall obtain all necessary building permits and operating

CENTURY WEST ENGINEERING 01160 General Requirements – 3 of 6 APRIL 2026 | #40097.143.01 licenses from local governmental agencies. The Engineer will define the actual location in the field. The Contractor may install a security fence. The area shall be restored to its original condition at the conclusion of the work, at no cost to the

Owner.

1.09 Disposal of Waste Material. Excess materials of all kinds, including, but not limited to waste earthen material, unsuitable material, strippings, and vegetation/organic material from clearing and grubbing or excavation shall be disposed of off-site at the Contractor's expense.

Concrete and other debris shall be disposed of offsite.

Disposal of waste materials shall be in accordance with governing agency safety, health, and other requirements.

1.10 Site Investigation and Representation. The Contractor acknowledges familiarity as to the nature and location of the work, the general and local conditions, particularly those bearing upon availability of transportation, disposal, handling and storage of materials, availability of labor, water, electric power, roads, and uncertainties of weather, or similar physical conditions at the site, the conformation and conditions of the ground, the character of equipment and facilities needed preliminary to and during the prosecution of the work and all other matters which can in any way affect the work or the cost thereof under this contract.

The Contractor further acknowledges understanding of the character, quality, and quantity of surface and subsurface materials to be encountered from inspecting the site.

The Contractor warrants that as a result of the examination and investigation of all the aforesaid data that he can perform the work in a good and workmanlike manner and to the satisfaction of the Airport. The Airport assumes no responsibility for any representations made by any of its officers or agents during or prior to the execution of this contract, unless (1) such representations are expressly stated in the contract, and (2) the contract expressly provides that the responsibility therefore is assumed by the Airport. Representations for which liability is not expressly assumed by the

Airport in the contract shall be deemed only for the information of the Contractor.

1.11 Information on Site Conditions. All information obtained by the Airport regarding site conditions, subsurface information, ground water elevations, existing construction of site facilities as applicable, and similar data will be available for inspection upon request. Such information is offered as supplementary information only. The Airport does not assume any responsibility for the completeness or interpretation of such supplementary information.

1.12 Subsurface and Site Information. Information derived from inspection of test results, of topographic maps, or from plans showing location of utilities and structures will not in any way relieve the Contractor from any risk, or from properly

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The submission of a proposal shall be conclusive evidence that the Bidder has investigated and is satisfied as to the conditions to be encountered, as to the character, quality, and quantities of work to be performed and materials to be furnished, and as to the requirements of the contract documents.

1.13 Underground Utilities. Known utilities and structures expected to be adjacent to or encountered in the work are shown on the plans. It is expected that there may be some discrepancies and omissions in the locations and quantities of utilities and structures shown. Those shown are for the convenience of the Contractor only, and no responsibility is assumed by the Airport for their accuracy or completeness.

1.14 Fire Prevention and Protection. The Contractor shall perform all work in a fire-safe manner. The Contractor shall comply with applicable local and State fire prevention regulations.

1.15 Temporary Water. No potable water supply is immediately available at the designated Contractor's staging area. The Contractor shall make arrangements for obtaining water and pay all costs for same.

1.16 Temporary Electric Power. No electric power is immediately available at the designated Contractor's staging. The Contractor shall make arrangements for electric power for use during the construction period until final acceptance by the

Airport, and pay all costs for same.

1.17 Sanitary Facilities. The Contractor shall provide and maintain sanitary facilities for employees and subcontractor's employees that will comply with the regulations of the local and State departments of health and as directed by the

Engineer.

2.00 GENERAL CONSTRUCTION RESPONSIBILITIES AND PROCEDURES

2.01 Site Restoration and Cleanup. Upon completion of the project, all areas used by the Contractor in connection with the work shall be properly cleared of all temporary structures, rubbish, and waste materials and properly graded to drain and blend in with the abutting property.

2.02 Haul Routes and Maintenance. The Contractor shall abide by prevailing legal load limit regulations when hauling over airfield pavements and public roads. The

Contractor shall perform all necessary maintenance of haul routes during construction and shall perform all work as necessary to restore the routes used by all his equipment to their original condition at the conclusion of construction. New construction haul roads shall be obliterated and original vegetation re-established.

Existing roadways, runways, and taxiways shall be patched or overlaid at the

Contractor’s expense, as necessary to restore them.

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Unsurfaced haul roads shall be sprinkled with water as necessary to prevent dust diffusion during the course of the work.

All maintenance and restoration work shall be completed to the Engineer's satisfaction before final payment is awarded. No direct payment will be made for this work.

2.03 Responsibility for Damage to Existing Structures. Where any existing structures or facilities which are intended to remain are damaged by the Contractor during demolition or construction, the Contractor shall promptly repair or replace the damaged portion or facility at no additional cost to the Airport.

2.04 Storage of Materials. Materials shall be so stored as to insure the preservation of their quality and fitness of the work. When considered necessary, they shall be placed on wooden platforms or other hard, clean surfaces, and not on the ground, and/or they shall be placed under cover. Stored materials shall be located so as to facilitate prompt inspection. Private property shall not be used for storage purposes without the written permission of the Airport or lessee.

2.05 Cleanup. The Contractor shall at all times during the work keep the premises clean and orderly, and shall promptly remove all waste materials and rubbish. All directions from the Engineer and other authorized public officials having jurisdiction over health and safety shall be obeyed. Areas to be opened up to aircraft operations shall be swept thoroughly clean with power broom equipment. Any debris resisting sweeping shall be removed by hand labor or other suitable means.

Upon completion of the work, all materials, equipment, and appurtenances not required, as a part of, or appurtenant to, the completed structure or facility shall be completely removed from the Airport property.

2.06 Blasting. Blasting is not allowed.

3.00 WORK PROGRESS SCHEDULE

3.01 Scope. The work specified in this subsection includes planning, scheduling, and reporting that is required to be performed by the Contractor.

3.02 Preconstruction Conference. A preconstruction conference will be held at the

Airport before Notice to Proceed is issued. The conference shall be attended at a minimum by the Contractor’s project manager and superintendent, and representatives of all subcontracting firms that will provide five percent (5%) or more of the total value of the project. A copy of the Contractor’s anticipated construction schedule shall be submitted to the Engineer at least 5 days prior to the preconstruction conference. The Contractor shall be prepared to discuss details of how construction will progress, how they expect to conduct their operations, and discuss operational and safety requirements associated with the work.

3.03 Coordination Meetings. Coordination meetings will be held on a weekly basis or more often if necessary, to communicate work efforts between the Engineer, the

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Airport and the Contractor. The Resident Engineer will schedule the meetings with attendance required by at least one person from each organization.

3.04 Method. An overall project critical path schedule and supplementary weekly

“look ahead” schedules, shall be submitted to the Engineer for review in accordance with the Special Provisions. Provide revised schedules and updated schedules at any time requested by the Engineer.

3.05 Schedule Requirements. Distinct items of contract work shall be defined and separated on the schedule. As a minimum, the work items shall include each contract pay item, mobilization, demobilization, and cleanup. Pay items that are partially subcontracted shall be split up to distinctly show the subcontracted work.

These items of work shall be plotted on a graph with calendar day duration as a horizontal reference. Anticipated start and finish dates for each work stage and for each of the work items within a stage, shall be shown.

The project name, the Contractor's name, and the date of the schedule submittal shall be clearly shown on the submittal.

3.06 Progress Reports. At the end of each week, the Contractor shall submit a summary report of the progress of the various scheduled work items stating, for each item, the existing time status, estimated time of completion, and cause of delays, if any. If the work is behind the previously submitted schedule, the Contractor shall submit an updated schedule and a written plan acceptable to the Engineer for bringing the work up to schedule.

Updated schedules will be used by Engineer in compiling partial payments and no such computations will be made until the reports have been received and approved by the Engineer.

The Engineer may request reports to be made on a more frequent schedule if he considers the substantial completion date to be in jeopardy because of activities behind schedule or for other valid reasons.

END OF SECTION 01160

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SECTION 01200 FOD PREVENTION CONTROLS

1.00 DESCRIPTION

This item shall consist of providing manpower and equipment necessary to avoid the possibility for FOD (foreign object debris) damage to aircraft. FOD present on an active runway, taxiway, shoulder, ramp, road, or any other paved surfaces may result in aircraft damage from engine ingestion, engine blast or any high-speed ground operation. To prevent such damage from occurring, FOD prevention controls must be maintained throughout the duration of the contract period. FOD is considered to be objects/debris of any visible size. Active aircraft surfaces shall be kept clean as work progresses and shall be free of FOD, as described above, before these surfaces are opened to aircraft operations.

2.00 MATERIALS

Equipment shall include power brooms (plastic brooms only, wire brooms are not allowed), vacuum type sweepers, and hand tools as necessary to eliminate FOD.

3.00 CONSTRUCTION METHODS

Procedures to be followed for purposes of preventing FOD shall be observed with the maximum degree of effort. It shall be understood that unlike general “best effort” cleanup requirements associated with typical construction projects, the FOD prevention controls are to be considered a primary project objective. The Contractor shall review the safety and phasing requirements carefully as presented in the project plans and specifications and submit with the contractor’s proposed schedule a FOD Control Plan.

The purpose of the FOD Control Plan shall be to minimize the work necessary to remove debris from aircraft movement areas by minimizing the source debris along immediate haul and access routes.

Food and beverage containers, along with any other refuse generated by the Contractor, shall be contained to prevent creation of FOD.

4.00 FOD PREVENTION CONTROLS REQUIREMENTS

Access/haul routes shall be confined strictly to the areas designated on the Project Site Plan, Safety, Phasing, or Work Area Plan. These routes shall be confined to the smallest possible area in order to limit the amount of sweeping and clean-up required. These routes shall be marked clearly by the Contractor with signs and cones so vehicles will not stray from the designated routes.

The Contractor shall return all aircraft movement areas to a clean, FOD-free state to the satisfaction of the airport before re-opening those surfaces to aircraft traffic. FOD cleanup equipment and methods used by the Contractor are subject to approval by the Engineer and/or Airport Staff. Equipment judged to be unsuitable by the Engineer shall be replaced by the Contractor.

The Contractor shall provide signs, barricades, and cones to delineate clearly and confine access routes to prevent vehicle and aircraft conflicts and to prevent FOD.

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Whenever directed by the Engineer, the Contractor shall begin cleanup operations or shut down cleanup operations already in progress. In the event the Airport or Engineer determines any active aircraft movement area to be unusable due to construction generated debris, and if the Contractor is not on site, cleanup equipment will be called to the airport and billed directly to the Contractor.

5.00 METHOD OF MEASUREMENT AND PAYMENT

Payment shall be made at the contract lump sum price for “FOD Prevention Controls.” This price shall be full compensation for preparing and submitting the FOD Control Plan, furnishing all labor, equipment, materials, tools, and incidentals necessary to complete the work.

END OF SECTION 01200

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SECTION 01300 AIRPORT SAFETY

1.00 DESCRIPTION

1.01 SCOPE. This specification outlines safety procedures and regulations to be followed by the Contractor during the course of this work. The work item “Temporary Flagging, Marking and Signing” shall consist of furnishing, installing, and removing temporary marking, signing, lighting, and barricades required during the course of this work. All work shall be in conformance with FAA Advisory Circular 150/5370-2G Operational Safety on

Airports during Construction, and the FHWA Manual of Uniform Traffic Control Devices.

The Contractor shall provide, erect, and maintain all necessary protection of the work and the safety of the public for both land and air traffic. Suitable warning signs and barricades, illuminated at night, shall be provided.

In order to protect air traffic against turning off of active runways or taxiways into construction areas, low level barricades shall be placed at the locations as shown on the plans, or as described in the Construction Safety and Phasing Plan (also known as the CSPP or the Construction Operations Plan), or as directed by the Engineer.

1.02 GENERAL REQUIREMENTS. The Contractor shall keep personnel and equipment off of the runway, runway sides, runway ends, taxiways, taxiway sides and aprons as described below. The Contractor shall continue to follow all safety requirements during runway closures.

1.03 CONSTRUCTION SEQUENCE

A. Construction activity shall not commence prior to issuance of a NOTAM.

The Contractor shall provide written notice to the Engineer and Airport

Manager at least 14 calendar days in advance of the planned commencement of construction activity. The Airport Manager will issue applicable NOTAMs no later than 72 hours prior to the start of closure activities. No further work in affected areas will be permitted after completion of work and removal of NOTAMs.

1.04 GENERAL SAFETY REQUIREMENTS

A. Prior to commencement of work on any of the airport's runways, taxiways, or aprons, the Contractor and the Engineer will select haul routes to be used by personnel and vehicles during the course of work in the various stages. The Contractor shall furnish, install, and maintain appropriate traffic signs that clearly identify a haul route throughout its length within the project area.

B. Contractor vehicles/equipment shall be marked with company identification (on both sides of the vehicle/equipment) and a flashing yellow beacon or an Engineer-approved orange and white checkered flag (must be visible from 300 feet) while operating within the airport boundary.

C. The Contractor's operations shall be limited to the staging area, the work boundaries shown on the plans and approved haul roads.

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D. Runway Sides. If appropriate construction NOTAM have been issued, construction (using equipment less than 12 feet tall) is permissible as close as the following distances from the centerline of the runway indicated when the runway is active:

Runway Designation Feet from Runway Centerline

16-34 125

E. Runway Ends. If appropriate construction NOTAM has been issued, construction activity is permissible off the threshold of the runways indicated below provided at least the indicated minimum safety area and indicated unobstructed approach slope are maintained:

Runway Minimum Safety Area Minimum Unobstructed

End Behind Threshold Approach Slope

16 200 feet 20:1 to 200’ behind threshold

34 200 feet 20:1 to 200’ behind threshold

Taxiways 39.5 feet from centerline

Work inside these safety areas and penetrating the approach slope will be allowed during runway closure only.

F. Normally, work will be permitted during daylight hours only. If an emergency situation requires, or project phasing/sequencing requires work at night, the

Contractor shall notify the Engineer as far in advance as possible and obtain clearance from the Owner before proceeding to work.

During night operations, each vehicle shall be equipped with an omnidirectional yellow flashing light mounted on the roof of the cab.

Headlights, taillights and flashers shall be used for all activities during these hours.

When the Contractor is required to work at night, adequate portable lights at the areas of work shall be provided by the Contractor. Sufficient lights shall be provided to complete the work to the specified tolerances. Portable light plants shall have at least four (4) working metal halide 1000 watt bulbs or

245,000 lumen output, each mounted on a mast at least 25’ high, or as approved by the Engineer.

G. Construction equipment that extends more than 12 feet above ground level shall be cleared through the Engineer. It shall be lighted at night in an approved manner and/or lowered to height of adjacent structural surroundings at the discretion of the Engineer.

H. Welding equipment shall not be used within 100 feet of fuel trucks or aircraft.

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I. All accidents shall be reported to the Engineer.

J. In the event of an emergency, personnel and equipment shall be moved immediately at the direction of the Engineer.

K. The Contractor shall be responsible for, at all times, ensuring that active runways and taxiways are kept free of construction debris, equipment, and/or materials that might endanger or be ingested by an aircraft.

L. All trenching within active runway or taxiway safety areas will be backfilled to grade at the end of each workday.

M. The Contractor will be responsible for all equipment being within the staging area at the end of each working day, including subcontractors’ equipment.

O. The Contractor shall place, service, and maintain Contractor-provided, runway closure crosses during the closure of any single runway.

1.05 CONSTRUCTION SAFETY AND PHASING PLAN. A Construction Safety and

Phasing Plan (a.k.a. CSPP or construction operations plan) has been developed by the

Owner to mitigate the adverse impacts of construction on aeronautical operations on the airport. Strict adherence to the provisions of the CSPP by all personnel assigned to or visiting the construction site is mandatory for all construction projects. When an Airport safety item is covered by more than one section in the contract documents, the Contractor shall adhere to the more stringent requirements for each safety item. In the event contractor activities are not in conformance with the provisions of the CSPP, the contractor shall immediately cease those operations involved in the violation of the provisions of the CSPP and conduct a safety meeting. The owner may direct the contractor, in writing, to immediately cease those operations involved in the violation of the provisions of the CSPP.

The contractor shall not resume construction operations until an appropriate action is taken as determined by the Owner. Costs associated with work stoppages or additional meetings required due to the violations of the safety plans shall be paid by the Contractor. Contract time and liquidated damages will apply to periods or work stoppage related to safety plan violations.

1.06 SAFETY PLAN COMPLIANCE DOCUMENT (SPCD). The Contractor shall prepare and submit the Safety Plan Compliance Document (SPCD) for Engineer approval a minimum of 14 days prior to Notice to Proceed. The Engineer will review the SPCD and provide any comments on the submittal. The SPCD must be reviewed and approved by the

Engineer prior to beginning work. Refer to Section I – Bidding Information, Appendix, Construction Safety and Phasing Plan for requirements of the SPCD.

2.00 MATERIALS

2.01 General. All barricades with flashing lights shall be inspected and tested each day, prior to project shut down to verify operation during nighttime usage. All barricade types

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The Contractor shall designate a person or persons who will be available 24 hours per day should any of the barricades, closure markers, or other safety measures noted in the plans, specifications, or CSPP fail. This person/persons shall be capable of immediately dispatching to the site for making repairs or adjustments as needed.

2.02 Tubular Markers. Not required.

2.03 Low Level Barricades. Low level barricades shall have nominal dimensions of 10”H x 96”L x 10”W, shall be specifically designed for airport use and shall be equipped with pins or connectors so that a “string” of barricades can be formed. They shall be weighted with water or sand as ballast. The low level barricades shall be in conformance with FAA

AC 150/5370-2G, Operational Safety on Airports During Construction. Low level barricades shall have diagonal striped, alternating, orange/white high reflective sheeting on both sides of the barricade, and two battery or solar powered flashing red lights. If solar powered lights are used, the contractor shall ensure that they are “on” during periods of low visibility, during daylight hours.

Low level barricades shall be used to delineate “on pavement” work area limits, safety areas, or other boundaries as directed by the engineer. When in place, low level barricades shall form a continuous “string” across the designated boundary. The

Contractor shall furnish, arrange and otherwise maintain a sufficient number of low level barricades to complete the work.

H2.04 Runway Closure Markers (Crosses). The contractor shall provide, place, and maintain, as required during runway closures crosses. The contractor-provided crosses shall be placed on the runway numerals, or as shown in the plans, for the duration of runway closures. Closure crosses shall be placed, maintained, and removed by the Contractor as required by the Work and as directed by the Engineer during the Contract. Coordinate availability with other construction projects at each airport, if applicable.

Each cross to be provided by the contractor shall be made of yellow truck tarp nylon weighing 18 ounces per square yard. The edges shall be hemmed, corners reinforced, and grommets provided every 3 feet along the edge. Material for each set of crosses shall be sized as follows: 4 pieces (10’ x 60’) as shown in the plans. The crosses shall be secured on airfield pavements by weighted materials less than 3 inches in height. Sandbags or equivalent are not allowed. On in-field areas, the crosses may be nailed down.

When a runway requires closure for an overnight period, the Contractor may be required to place and maintain lighted closure crosses, at the discretion of the Airport.

2.05 Airport Radios. Airport radios shall be VHF Air Band Transceivers, as manufactured by ICOM, Model IC-A14 or IC-A16. Radios shall be supplied with a compatible wall charge unit, and a vehicle “cigarette lighter” style plug in charger. The contractor shall provide a minimum of two (2) radios for use on the project.

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The Contractor’s Superintendent, Foreman, motorized vehicle operators and Flaggers shall be trained by the Engineer on airport procedures and radio communications prior to issuance of Notice to Proceed. Required airport-specific training sessions shall include

General Aviation Airport Training, Safety During Construction Training, and Aviation Radio

Training. All Contractor personnel who will be present on the airport during construction are strongly encouraged to attend training sessions as well. Contractor and subcontractor employees required to attend training sessions will be required to pass an airport and radio test administered by the Engineer.

All additional airport owner required training shall be completed to the satisfaction of the airport owner prior to entering that airfield.

At no time will the Contractor, the Contractor’s employees, or subcontractors be given authorization to enter an active runway, or taxiway unless they are being escorted by Airport

Operations. Hauling across active runways, taxiways, or aprons shall not be permitted.

2.06 Temporary Marking and Signing. The Contractor shall install temporary crosses, lights, lenses, traffic control devices and other temporary markings, barricades and signs required during the course of this contract. The temporary markings shall conform to applicable Federal Aviation Administration markings and shall be constructed of materials approved by the Engineer.

3.00 PAYMENT

3.01 Temporary Flagging, Marking and Signing. Temporary Flagging, Marking and

Signing will be paid for at the contract lump sum price for “Temporary Traffic Control”. This price shall be fully compensated for all labor, equipment, tools, and incidentals necessary to complete the item.

3.02 Low Level Barricades. Placement and maintenance of low level barricades is considered incidental to the bid item “Temporary Traffic Control”. No separate payment will be made for related labor, equipment, tools, and incidentals necessary to complete the item.

3.03 Runway and Taxiway Closure Markers. Placement, service, and maintenance of

Contractor-provided crosses is considered incidental to “Temporary Traffic Control”. No separate payment will be made for related labor, equipment, tools, and incidental necessary to complete the item.

3.04 Airport Radios. Airport Radios are considered incidental to various project work items and activities for which no separate payment will be made.

3.05 Safety Plan Compliance Document. Preparation of the Safety Plan Compliance

Document will be paid for at the contract lump sum price for “Safety Plan Compliance

Document.” This price shall be full compensation for preparing and maintaining the SPCD and all related labor, equipment, tools, and incidentals necessary to complete the item.

END OF SECTION 01300

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01406 CONSTRUCTION STAKING

1.00 GENERAL SCOPE

This work shall consist of all surveying, measuring and laying out control for the many phases of work required to construct the project. The Contractor will be provided with reference monuments for both vertical and horizontal control in the proximity of the work. The Contractor shall be responsible for all measurements made in connection with the work.

The Engineer will perform the following, which will not be a part of this work.

1. Provide vertical and horizontal reference control points.

2. Perform such checks as deemed necessary to verify the accuracy of the Contractor's survey work and insure the completed work complies with the plans and specifications.

The Contractor shall review Section 50-07 CONSTRUCTION LAYOUT AND STAKES for minimum staking requirements that are not fully described in this section. Staking requirements described in this section shall take precedence over those listed in Section 50-07. Where discrepancies appear, the more stringent requirement shall apply.

2.00 MATERIALS

The Contractor shall furnish all stakes, hubs, equipment, tools and incidentals required to lay out and control every part of the work from the reference control points provided.

3.00 WORKMANSHIP

3.01 Personnel. Survey work performed under this contract shall be performed under the direct supervision of an Oregon registered Professional Land Surveyor.

Recognized and established construction survey practices and orders of accuracy shall be followed in all cases.

3.02 Equipment. All surveying equipment and tools shall be provided by the Contractor. Equipment shall be in good operating order and shall be kept in adjustment throughout the duration of the project.

3.03 Layout of the Work. The Contractor shall supervise and control the layout of the work. Prior to the construction of any item, the Engineer shall review the layout of the work, and give notice to proceed if the layout meets his satisfaction.

The Engineer's notice to proceed does not constitute an approval or acceptance of the survey work, but is rather an inspection to see that sufficient line and grade has been established to construct the work to the required accuracy. The Contractor shall submit a Staking Plan, for approval, indicating the surveying

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A. Subgrade, Subbase and Base Rock Hubs. Not used.

B. Electrical Equipment. Not used.

C. Pavement Edge. Not used.

D. Striping Layout. Centerline striping layout shall be delineated by minimum of 1 PK nail per centerline stripe. Hold positions will require a minimum of 2 PK nails. Hubs shall be set for all radius points. PK nails shall be removed after striping is completed.

E. Drainage Structures and Pipelines. Not used.

3.04 Preservation of Reference Control Points. It shall be the responsibility of the Contractor to maintain and preserve all stakes and other points established by the Engineer until authorized to move them. If such points are disturbed or destroyed through negligence of the Contractor, the Owner may order their replacement at his discretion.

The expense of such replacement will be deducted from any amounts due, or to become due the Contractor.

3.05 Protection of Existing Monuments. The Contractor shall record and protect existing monuments as shown on the Drawings.

4.00 PAYMENT

Payment shall be made at the contract lump sum price for "Construction Staking."

This price shall be full compensation for furnishing all labor, equipment, materials, tools and incidentals necessary to complete the work.

END OF SECTION 01406

CENTURY WEST ENGINEERING 01700 Project Closeout – 1 of 2 APRIL 2026│#40097.143.01

01700 PROJECT CLOSEOUT

1.00 GENERAL SCOPE

Engineer shall prepare a punch list when notified by the Contractor that work is completed. Engineer and Owner will conduct one final inspection only. All further inspections or punch lists as required will be made at $2,000 per trip, at Contractor's expense. (Note: Failure of Engineer to include any items on punch list does not alter responsibility of Contractor to complete work in accord with Contract Documents.) Deliver all items called for herein and under various specification sections to Engineer at completion of work.

1.01 Project Record/As-Built Drawings. As the job progresses, Contractor shall keep at project site an accurately marked job set of contract documents showing all changes and deviations from original drawings. These shall be available to Engineer. (Note: Above requirements shall not be construed as authorization to make changes in work or layout without definite instructions in each case.) Upon completion of project and before final payment, Contractor shall forward to Engineer two complete new sets of contract documents covering all work including his changes under this contract, showing all above information, changes and deviations from the original drawings.

1.02 Cleanup. Upon completion of the project and prior to final payment, the Contractor shall restore the work area to a satisfactory condition as determined by the Engineer. All materials, equipment, and appurtenances not required as a part of or appurtenant to, the completed project shall be graded smooth to establish grade or if no grade is established, to a neat uniform condition as determined by the Engineer.

1.03 Closeout. The Contractor shall furnish the following before final payment will be released.

1. Submit to the Owner a signed affidavit, satisfactory to the Owner, stating that so far as he has knowledge or information, all accounts for materials, labor, and incidentals in connection with the work have been paid in full.

2. Furnish to the Owner an “Affidavit of Wages Paid.”

3. The Owner’s approval of the affidavit of the release of liens.

4. Inspection and approval by the Federal Aviation Administration as required for Airport Improvement Programs.

5. Submit O&M manuals for all equipment installed or constructed.

6. Submit project record drawings as described above.

7. Submit “Certificate of Compliance” form.

8. Furnish to the Owner a statement of amounts paid to qualified DBE subcontractors and suppliers participating on the project.

CENTURY WEST ENGINEERING 01700 Project Closeout – 2 of 2 APRIL 2026│#40097.143.01

9. Results of all contractor quality control tests performed during the project.

10. Copies of any other inspection, observation or monitoring reports required by any other permits for the project.

11. Other miscellaneous items required to be submitted by the contract documents.

12. Return all airport security badges, issued by the Airport, to the airport security director, if applicable.

The acceptance by the Contractor of the final payment shall release the Owner and the Engineer as agent of the Owner from all claims and all liability to the Contractor for all things done or furnished in connection with the work, and every act of the Owner and others relating to or arising out of the work. No payment, however, final or otherwise, shall operate to release the Contractor or his sureties from obligations under this contract and the “Performance and Payment Bond”, as herein provided.

END OF SECTION 01700

Century West Engineering Item C-102 - Temporary Air and Water Pollution… 1 of 4 APRIL 2026 | #40097.143.01

Item C-102 Temporary Air and Water Pollution, Soil Erosion, and Siltation Control

DESCRIPTION

102-1. This item shall consist of temporary control measures as shown on the plans or as ordered by the Resident Project Representative (RPR) during the life of a contract to control pollution of air and water, soil erosion, and siltation through the use of silt fences, berms, dikes, dams, sediment basins, fiber mats, gravel, mulches, grasses, slope drains, and other erosion control devices or methods.

Temporary erosion control shall be in accordance with the approved erosion control plan; the approved Construction Safety and Phasing Plan (CSPP) and AC 150/5370-2, Operational Safety on Airports During Construction. The temporary erosion control measures contained herein shall be coordinated with the permanent erosion control measures specified as part of this contract to the extent practical to assure economical, effective, and continuous erosion control throughout the construction period.

Temporary control may include work outside the construction limits such as borrow pit operations, equipment and material storage sites, waste areas, and temporary plant sites.

Temporary control measures shall be designed, installed and maintained to minimize the creation of wildlife attractants that have the potential to attract hazardous wildlife on or near public-use airports.

MATERIALS

102-2.1 Grass. Grass that will not compete with the grasses sown later for permanent cover per Item T-901shall be a quick-growing species (such as ryegrass, Italian ryegrass, or cereal grasses) suitable to the area providing a temporary cover. Selected grass species shall not create a wildlife attractant.

102-2.2 Mulches. Mulches may be hay, straw, fiber mats, netting, bark, wood chips, or other suitable material reasonably clean and free of noxious weeds and deleterious materials per Item T-908. Mulches shall not create a wildlife attractant.

102-2.3 Fertilizer. Fertilizer shall be a standard commercial grade and shall conform to all federal and state regulations and to the standards of the Association of Official Agricultural Chemists.

102-2.4 Slope drains. Slope drains may be constructed of pipe, fiber mats, rubble, concrete, asphalt, or other materials that will adequately control erosion.

102-2.5 Silt fence. Silt fence shall consist of polymeric filaments which are formed into a stable network such that filaments retain their relative positions. Synthetic filter fabric shall contain ultraviolet ray inhibitors and stabilizers to provide a minimum of six months

Century West Engineering Item C-102 - Temporary Air and Water Pollution… 2 of 4 APRIL 2026 | #40097.143.01 of expected usable construction life. Silt fence shall meet the requirements of ASTM D6461.

102-2.6 Other. All other materials shall meet commercial grade standards and shall be approved by the RPR before being incorporated into the project.

CONSTRUCTION REQUIREMENTS

102-3.1 General. In the event of conflict between these requirements and pollution control laws, rules, or regulations of other federal, state, or local agencies, the more restrictive laws, rules, or regulations shall apply.

The RPR shall be responsible for assuring compliance to the extent that construction practices, construction operations, and construction work are involved.

102-3.2 Schedule. Prior to the start of construction, the Contractor shall submit schedules in accordance with the approved Construction Safety and Phasing Plan (CSPP) and the plans for accomplishment of temporary and permanent erosion control work for clearing and grubbing; grading; construction; paving; and structures at watercourses. The Contractor shall also submit a proposed method of erosion and dust control on haul roads and borrow pits and a plan for disposal of waste materials. Work shall not be started until the erosion control schedules and methods of operation for the applicable construction have been accepted by the RPR.

102-3.3 Construction details. The Contractor will be required to incorporate all permanent erosion control features into the project at the earliest practicable time as outlined in the plans and approved CSPP. Except where future construction operations will damage slopes, the Contractor shall perform the permanent seeding and mulching and other specified slope protection work in stages, as soon as substantial areas of exposed slopes can be made available. Temporary erosion and pollution control measures will be used to correct conditions that develop during construction that were not foreseen during the design stage; that are needed prior to installation of permanent control features; or that are needed temporarily to control erosion that develops during normal construction practices, but are not associated with permanent control features on the project.

Where erosion may be a problem, schedule and perform clearing and grubbing operations so that grading operations and permanent erosion control features can follow immediately if project conditions permit. Temporary erosion control measures are required if permanent measures cannot immediately follow grading operations. The RPR shall limit the area of clearing and grubbing, excavation, borrow, and embankment operations in progress, commensurate with the Contractor’s capability and progress in keeping the finish grading, mulching, seeding, and other such permanent control measures current with the accepted schedule. If seasonal limitations make such coordination unrealistic, temporary erosion control measures shall be taken immediately to the extent feasible and justified as directed by the RPR.

The Contractor shall provide immediate permanent or temporary pollution control measures to minimize contamination of adjacent streams or other watercourses, lakes, ponds, or other areas of water impoundment as directed by the RPR. If temporary

Century West Engineering Item C-102 - Temporary Air and Water Pollution… 3 of 4 APRIL 2026 | #40097.143.01 erosion and pollution control measures are required due to the Contractor’s negligence, carelessness, or failure to install permanent controls as a part of the work as scheduled or directed by the RPR, the work shall be performed by the Contractor and the cost shall be incidental to this item.

The RPR may increase or decrease the area of erodible earth material that can be exposed at any time based on an analysis of project conditions.

The erosion control features installed by the Contractor shall be maintained by the Contractor during the construction period.

Provide temporary structures whenever construction equipment must cross watercourses at frequent intervals. Pollutants such as fuels, lubricants, bitumen, raw sewage, wash water from concrete mixing operations, and other harmful materials shall not be discharged into any waterways, impoundments or into natural or manmade channels.

102-3.4 Installation, maintenance and removal of silt fence. Silt fences shall extend a minimum of 16 inches (41 cm) and a maximum of 34 inches (86 cm) above the ground surface. Posts shall be set no more than 10 feet (3 m) on center. Filter fabric shall be cut from a continuous roll to the length required minimizing joints where possible. When joints are necessary, the fabric shall be spliced at a support post with a minimum 12-inch (300-mm) overlap and securely sealed. A trench shall be excavated approximately 4 inches (100 mm) deep by 4 inches (100 mm) wide on the upslope side of the silt fence. The trench shall be backfilled and the soil compacted over the silt fence fabric.