Exhibit A Special Provisions~3.pdf

SPECIAL PROVISIONS

FOR HIGHWAY CONSTRUCTION

OREGON DEPARTMENT OF TRANSPORTATION

SALEM, OREGON

ROCK PRODUCTION

DISTRICT 14 SANDING ROCK PRODUCTION 2024 PROJECT

CENTRAL OREGON HIGHWAY

HARNEY COUNTY

AUGUST 2024

OREGON DEPARTMENT OF TRANSPORTATION

FOR

Rock Production District 14 Sanding Rock Production 2024 Project

Central Oregon Highway Harney County

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 material source rock production and stockpiling. Modified Special Provisions were prepared by me or under my supervision.

Sections 00235, 00335 and 00680

FINAL ELECTRONIC DOCUMENT AVAILABLE UPON REQUEST

TABLE OF CONTENTS FOR SPECIAL PROVISIONS

WORK TO BE DONE

SECTION 00165 - QUALITY OF MATERIALS

SECTION 00210 – MOBILIZATION

SECTION 00235 - AGENCY PROVIDED MATERIAL SOURCES

SECTION 00290 - ENVIRONMENTAL PROTECTION

SECTION 00335 - BLASTING METHODS AND PROTECTION OF EXCAVATION

BACKSLOPES

SECTION 00680 - STOCKPILED AGGREGATES

District 14 Sanding Rock Production 2024 Project, Contract, August 2024 1

WORK TO BE DONE

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

1. Provide aggregate in stockpile, at the specific place of delivery.

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

APPLICABLE SPECIFICATIONS

The Specifications that are applicable to the Work on this Project is the 2024 edition of the "Oregon Standard Specifications for Construction", as modified by these Special Provisions.

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.

CLASS OF PROJECT

This is a State Project.

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SECTION 00165 - QUALITY OF MATERIALS

Comply with Section 00165 of the Standard Specifications modified as follows:

00165.35(e) Certificate of Origin of Construction Materials – Replace this subsection, except for the subsection number and title, with the following:

When a certificate of material origin for construction materials is specified, complete the form furnished by the Engineer as required by 00160.20(d) for Federal-aid projects.

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SECTION 00210 – MOBILIZATION

Comply with Section 00210 of the Standard Specifications.

SECTION 00235 - AGENCY PROVIDED MATERIAL SOURCES

Section 00235, which is not a Standard Specification, is included in this Project by Special Provision.

Description

00235.00 Scope - This Work consists of utilizing Agency provided prospective or mandatory material source as the Contractor elects or as required for the construction of the Contract.

00235.01 Material Source Specific Requirements - The following prospective material source, for the production of Sanding Aggregate, that may warrant investigation and consideration for use by the Contractor on this Project is as follows:

(a) Prospective Material Source, Buchanan Quarry:

• Source Number - OR-13-015-5

• DOGAMI Number - 13-0041

• Location - Approximately 26 miles east of Burns on the Central Oregon Highway (US20) in the NW ¼ NW ¼ of Section 18, T. 22 S., R. 34 E. and NE ¼ NE ¼ of Section 13, T. 22 S., R. 33 E., W.M.

• Access - Adjacent south of MP 157.73 of the Central Oregon Highway (US20)

• Available Area for Equipment Setup, Stockpiling, and Processing Aggregate:

• Existing - 12 acres

• Development - 0 acres

If the Contractor elects not to utilize the above listed source(s) 00160.60 applies.

00235.03 Laws - Conduct operations within the material source according to all applicable State, county, and federal laws including mining and fire laws. Provide, operate, and maintain wildland firefighting equipment appropriate for the current fire levels on-site at all times during all material source operations.

00235.04 Permits - Copies of the Plans and the material source narrative for the material source are available for inspection at the Project Manager's office. Operations within the material source shall conform to the stipulations and conditions of these documents and to all of the requirements of the Contract.

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00235.05 Pre-Work Meeting - Before occupying the material source, attend a pre-work meeting at the material source with the Engineer and the following owners or representatives:

Subsection Source Name Contact Names and phone numbers 00235.01(a) Buchanan

Quarry ODOT Geologist - Bobbi Jean Cummiskey

(541) 316-9921

00235.06 Source Occupancy - Coordinate material source occupancy with the Engineer.

The material source information listed in Table 00235-1 below shall be as shown. Do not operate beyond the material source Work area boundary or in no Work area as shown unless otherwise directed in writing.

Table 00235-1

Subsection Source Name Source items shown 00235.01(a) Buchanan

Quarry Work area boundary, property control line, excavation area, existing stockpile, proposed stockpile, proposed safety berm, existing fence, existing gates, existing access road, no work area, new material stockpile, scalpings, new and existing rejects, existing material to be moved by ODOT

00235.07 Source Development - If proposing changes to the material source development plan, submit a source development plan as an unstamped Working Drawing according to

00150.35. Do not begin Work in the material source until the source development plan has been approved in writing by the Engineer.

Develop a site-specific Erosion and Sediment Control Plan for the material source according to 00280.04 and submit it to the Engineer at or before the pre-work meeting. Construct stormwater control berm(s) as needed to control runoff. Do not allow any materials, including sediments, Aggregate or crushing by-products to enter into waterways or Wetlands.

Develop a site-specific Pollution Control Plan for the material source according to 00290.30(b) and submit it to the Engineer at or before the pre-work meeting. Include the following requirements in the Pollution Control Plan:

• Do not discharge waste or by-product if it contains any substance in concentrations that could contaminate Soils or result in harm to fish, wildlife, or water sources.

• Store all potentially hazardous materials and solid waste in a manner that prevents seepage into the ground or groundwater sources. Lined sumps or pits are allowable options for storage. If pits or sumps are used, construct adequate berms or provide other measures to prevent breaching of the pits or sumps.

• For materials capable of causing water pollution if discharged, locate storage facilities in an area that prevents spillage into waterways or Wetlands.

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Construction

00235.40 General - All vehicles and Equipment, prior to entering the site for the first time, and each subsequent time if the vehicle has left the Roadway outside the construction Project limits, shall be steam cleaned of all debris (soil, dirt, plant parts, and vegetative matter) before being brought back to the site. Notify the Engineer before moving each vehicle onto the site.

Certify, in writing, that the Equipment has been steam cleaned.

00235.41 Restrictions and Protection of Resources - Comply with the following for all operations within the material source:

• Protect cultural resources according to 00290.50.

• Protect migratory birds according to 00290.36(a).

• Do not utilize, contaminate, or disperse material from existing stockpiles. If existing stockpiles interfere with the Contractor’s operations, move the stockpiles to other locations within the material source area as directed, at no additional cost to the Agency.

• Limit mineral and Aggregate extraction, crushing, processing, and Equipment operation activities including drilling activities to one-half hour before sunrise and one-half hour after sunset, Monday through Saturday unless modifications to these hours are requested in writing and approved by the Engineer. Do not conduct any operation on Sundays or legal holidays, as defined in ORS 279C.540.

00235.42 Source Setup - Before proceeding with Work in the material source, the following apply:

(a) Access:

• For material source Buchanan Quarry 00235.01(a) routine road maintenance activities such as grading and watering of the access road do not need review or approval. Maintain or develop drain dips, water bars, road crowning, in-slopes and out-slopes during road maintenance.

• For material source Buchanan Quarry 00235.01(a) use overburden or existing, loose and non-stockpiled material or imported or clean soil or a combination of clean soil and rock, to construct a safety berm along the top edge of the new excavation or existing slopes as shown. Maintain a 10-foot buffer between the top edge of the excavation or slope and the toe of the safety berm. Construct the berm 3 feet high, with side slopes of 1V:2H.

(b) Overburden - Before excavating, including drilling and blasting when required, strip and stockpile all soil overburden from within the excavation area and any other areas to be developed. Incorporate grass and small shrubs into the stockpiles. Do not remove grass or small shrubs from the overburden. Place stockpiles in the safety berm(s). Store overburden stripped from the stockpile and processing area a minimum of 10 feet from the toe of the Aggregate stockpiles. Smooth and contour overburden storage berms to form side Slopes no steeper than 1V:2H.

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00235.43 Blasting - Perform blasting operations according to this Section and Section 00335, except that perimeter controlled blasting as described in 00335.40(a) is not required in the material source.

For material source Buchanan Quarry 00235.01(a) restrict blasting to the hours of 9:00 a.m.

to 6:00 p.m. Monday through Friday. Do not blast on Saturdays, Sundays, or legal holidays as defined in ORS 279C.540.

Prior to blasting operations, provide two days’ notice to either the Burns Transportation Operations and Maintenance Manager Joe Arnold (541-573-1766) or the Juntura Transportation Maintenance Manager Forrest Overcash (458-214-7016) for coordination on traffic control and potential post-blasting cleanup operations on US20.

00235.44 Source Operations - The following apply during material source operations:

• Construct slopes and floor of the excavation area as shown.

• To control dust, apply water to material source access, internal haul road(s), and crushing and processing operations.

• For material source Buchanan Quarry 00235.01(a) a water source is not available on-site within the material source.

• Stockpile scalpings and reject fines in separate and accessible stockpiles as shown.

• For material source Buchanan Quarry 00235.01(a) if the Contractor chooses to utilize this material source, maintain the condition of US20 at the quarry accesses at all times.

Provide traffic control related to ingress and egress movements in a manner that allows a safe work zone and safe passage of vehicles.

• For material source Buchanan Quarry 00235.01(a) maintain the livestock gates into the source at all times.

00235.45 Source Clean-up - The following apply at the completion of operations:

• Leave no loose material on the site exceeding 1 foot diameter. Process existing oversize material, and all material loosened in the source by the Contractor that meets quality requirements.

• Place all excess produced Aggregate remaining at the end of operations in separate and accessible stockpiles on Agency owned or controlled property in areas designated by the Engineer, at no additional cost to the Agency.

• Leave the material source haul roads open.

• Remove all loose, hanging or potentially dangerous Rock on or above the excavated surface.

• Pile and burn all construction slash and combustible debris resulting from use and development of the source, including the preexisting refuse identified at the pre-work meeting, even if it is from outside the material source project boundary except for grass and small shrubs that are incorporated into the overburden. Comply with all open burning regulations in effect at the time of source occupancy. If burning is not allowed, all construction slash and combustible debris become the property of the Contractor, to be treated as noncombustible and removed from material source.

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00235.46 Seeding:

• For material source Buchanan Quarry 00235.01(a) in addition to other areas with soil cover within the site disturbed by the Contractor's operations, stabilize the overburden storage areas and safety berms, by seeding, mulching, and tackifying, as directed.

• For material source Buchanan Quarry 00235.01(a) provide the following seed mixture:

Broadcast Rate Common/Botanical Seed Name

7.7 lbs/acre Bluebunch Wheatgrass/Pseudoroegneria spicata

5.5 lbs/acre Idaho Fescue/Festuca idahoensis

3.3 lbs/acre Indian Ricegrass/Achnatherum hymenoides

3.3 lbs/acre Sandberg Bluegrass/Poa secunda

1.65 lbs/acre Bottlebrush Squirreltail/Elymus elymoides

0.55 lbs/acre Blue Flax/Linum lewisii

• Use only certified weed free seed. Provide copies of the certification to the Engineer.

• Provide straw mulch according to 01030.15(b).

• Apply a commercial straw mulch tackifier according to the manufacturer’s directions and at the recommended rate.

• Apply seed and mulch according to Section 01030.

• If conditions allow and the Contractor chooses, the area may be stabilized by applying seed using a range drill with a roller attachment. All areas seeded with the range drill and roller do not need to be subsequently covered with mulch and tackifier.

• All variations to these requirements require written approval by the Engineer.

00235.47 Source Vacating - Before vacating the material source the following apply:

• Remove all structures, noncombustible debris, and equipment from the material source, even if it was pre-existing, except for grass and small shrubs incorporated into the overburden.

• Remove solid waste and hazardous material from the site and dispose of properly.

These include, but are not limited to, crusher cleanings, materials placed in sumps, tires, pipes, belts, screens, and truck cleanings. Provide documentary evidence of proper disposal and verify the amount of material removed.

• If a spill or dumping has occurred or if a spill or dumping is suspected to have occurred, the Contractor shall clean up the contaminated materials according to Section 00290.

After clean up, the Engineer may, sample and test materials at the spill or dumping locations to verify the clean up has been completed. If the Engineer’s verification testing demonstrates remaining contamination, the Contractor shall perform additional clean up until the requirements of Section 00290 including 00290.20(g) are met

• Attend a post-work meeting at the material source to evaluate material source rehabilitation work with the Engineer and attendees listed under 00235.05.

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Measurement

00235.80 Measurement - No measurement of quantities will be made for Work performed under this Section.

Payment

00235.90 Payment - No separate or additional payment will be made for Work performed under this Section. Payment will be included in payment made for the appropriate items under which this Work is required.

SECTION 00290 - ENVIRONMENTAL PROTECTION

Comply with Section 00290 of the Standard Specifications modified as follows:

00290.30(a)(7) Water Quality:

• Do not discharge contaminated or sediment-laden water, including drilling fluids and waste, or water contained within a work area isolation, directly into any waters of the State or U.S. until it has been satisfactorily treated (using a best management practice such as a filter, settlement pond, bio-bag, dirt-bag, or pumping to a vegetated upland location).

• Do not use explosives under water.

• Implement containment measures adequate to prevent pollutants or construction and demolition materials, such as waste spoils, fuel or petroleum products, concrete cure water, silt, welding slag and grindings, concrete sawcutting by-products and sandblasting abrasives, from entering waters of the State or U.S.

• The Engineer retains the authority to temporarily halt or modify the Work in case of excessive turbidity or damage to natural resources.

00290.36(a) Migratory Birds

Do not disturb migratory bird nesting habitat (shrubs, trees, and structures), or clear vegetation from March 1 to September 1 of each year without prior written approval from the Engineer. Notify the Engineer, in writing, a minimum of 10 Calendar Days prior to starting activities that could harm nesting birds.

(1) Bird Management - Bird management activities to comply with the Migratory Bird Treaty Act (16 U.S.C. 703 712) will be performed by the Agency. Ensure that the Agency and its permitted agents have access to the project area, as needed to prevent migratory bird nesting. Nesting prevention may include daily bird harassment and the installation and maintenance of devices that exclude birds.

Do not disturb migratory bird nesting habitats (shrubs, trees, and structures), or clear vegetation from March 1 to September 1 of each calendar year without prior written approval from the Engineer. Notify the Engineer, in writing, a minimum of 10 Calendar Days prior to starting activities that could harm nesting birds.

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Add the following subsection:

00290.51 Protection of Sensitive Cultural Sites - Add the following to the end of this subsection:

There are sensitive cultural sites or areas of high probability for cultural resources on this Project. At the time of preparation of the Plans, 1 site was identified.

The Region Environmental Coordinator for this Project is Tayton Duby.

The Agency Archaeology Representative for this Project is Alex New.

All contact with the Agency Archaeology Representative and the Region Environmental Coordinator shall be through the Engineer.

Meet with the Engineer at least 10 Calendar Days prior to beginning ground disturbing activities to discuss sensitive cultural sites on the Project. Required attendees include:

• The Contractor’s supervisory personnel.

• Subcontractors, including contract archaeological monitors, and supervisory personnel who will be involved in ground disturbing activities.

• Agency archaeology representative or region environmental coordinator.

• When applicable, tribal representative(s) or monitor(s).

Prior to beginning On-Site Work, install work zone fencing from section 00221.13 of the QPL, or lath and flagging, around no work zones, as shown or as directed.

00290.90 Payment - Add the following paragraph(s) to the end of this subsection:

No separate or additional payment will be made for work zone fencing.

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SECTION 00335 - BLASTING METHODS AND PROTECTION OF EXCAVATION

BACKSLOPES

Comply with Section 00335 of the Standard Specifications.

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SECTION 00680 - STOCKPILED AGGREGATES

Comply with Section 00680 of the Standard Specifications modified as follows:

Add the following subsection:

00680.11(c) Sanding Aggregates - Provide sanding Aggregates meeting the following requirements:

(1) Grading - Furnish clean, hard, and durable Aggregate in stockpiles meeting the following grading requirements:

Percent Passing Sieve Size (by Weight)

1/2" 100 3/8" 80 - 95 1/4" 10 - 40 No. 8 0 - 6 No. 40 0 - 2

Perform sieve analysis according to AASHTO T 27.

Scalp the Rock or Gravel material from which the Aggregates are produced on a screen, the entire surface of which has openings not less than 1/2 inch in size. After the material has passed over the scalping screen, it shall contain not more than 5% by weight of material passing the 1/2 inch sieve. If quarry Rock is furnished, apply this requirement to the material after it has passed through the primary crusher. In addition, 95% of the quarry Rock shall pass a 8 inch sieve following primary crushing.

(2) Elongated Pieces - Elongated pieces in Aggregate larger than 1/4 inch shall be determined according to ODOT TM 229, with the proportional caliper device set at a ratio of 5:1 and shall not exceed 10 percent by weight of the material retained on the 1/4 inch sieve.

(3) Fractured Faces - Provide Aggregates consisting of broken stone, crushed gravel, or a combination of both. Crush Aggregate such that at least 90% by weight of the total aggregate retained on the No. 8 and larger sieves is fractured on two faces, as determined according to AASHTO T 335.

00680.40(a) Source Sites - Replace this subsection, except for the subsection number and title, with the following:

Prepare and develop the source site according to Section 00235.

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00680.42 Places of Delivery - Add the following to the end of this subsection:

Deliver 20,000 cubic yards of Sanding Aggregate, and stockpile at Buchanan Quarry 00235.01(a), located adjacent south of MP 157.73 of Central Oregon Highway (US20).

00680.70 Cleaning Up Source Sites - Replace this subsection, except for the subsection number and title, with the following:

Clean up the source sites according to Section 00235.

***END SPECIAL PROVISIONS***