Exhibit A Special Provisions~6.pdf

SPECIAL PROVISIONS

FOR HIGHWAY CONSTRUCTION

OREGON DEPARTMENT OF TRANSPORTATION

SALEM, OREGON

ROCK PRODUCTION

DISTRICT 13 ROCK PRODUCTION 2025 PROJECT

VARIOUS HIGHWAYS

UNION & BAKER COUNTIES

MARCH 2025

District 13 Rock Production 2025 Project

TABLE OF CONTENTS FOR SPECIAL PROVISIONS

WORK TO BE DONE

SECTION 00150 - CONTROL OF WORK

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

OREGON DEPARTMENT OF TRANSPORTATION

FOR

Rock Production

Various Highways Union & Baker 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 material source rock production and stockpiling. Modified Special Provisions were prepared by me or under my supervision.

Section(s) 00235, 00335 and 00680

FINAL ELECTRONIC DOCUMENT AVAILABLE UPON REQUEST

2025.01.23 15:07:26 -08'00'

SPS_M24093, District 13 Rock Production 2025 Project, Contract, March 2025 1

WORK TO BE DONE

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

1. Provide aggregate in stockpile, at the specified 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 00150 - CONTROL OF WORK

Comply with Section 00150 of the Standard Specifications modified as follows:

00150.50(c) Contractor’s Responsibilities – Replace the bullet that begins “In addition to the notification required…” with the following bullet:

• In addition to the notification required in OAR 952-001-0090(7), notify the Engineer and the Utility as soon as the Contractor discovers any previously unknown Utility conflicts or issues. Contrary to the OAR, stop excavating until directed by the Engineer and allow the Utility a minimum of two weeks to relocate or resolve the previously unknown Utility issues; and

Add the following subsection:

00150.50(f) Utility Information (No Anticipated Relocations) - Within the Project limits, there are no anticipated relocations with the Utilities listed in Table 00150-1. The Contractor shall contact those Utilities having buried facilities and request that they locate and mark them for their protection prior to construction.

Table 00150-1

Utility

Contact Person's Name, Address, Email, and Phone Number

Marathon Petroleum Corporation / Tesoro Logistics NW Pro

Brandin Mann 201 N Phillippi St.

Boise, ID 83706 bmann@marathonpetroleum.com Work: (208) 373-2150 Cell: (208) 954-4999

Williams NW Pipeline Luke Danielson 606 South Oregon Ave.

Pasco, WA 99301 Luke.danielson@williams.com Work: (509) 521-3660

Avista Utilities Greg Ford 10201 South "F" St, Island City, OR 97850 gregory.ford@avistacorp.com Cell: (541) 441-0767

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Cascade Natural Gas Micah Blank 2100 13th St.

Baker City, OR 97814 Micah.Blank@cngc.com Work: (541) 523-1032 Cell: (541) 419-4032

Oregon Trail Electric Co-op Stephanie Elms 4005 23rd St, Baker City, OR 97814 selms@otec.coop Work: (541) 524-2829 Cell: (541) 519-1403

AT&T Alex Thompson 700 S Main St, Yreka, CA 96097 athompson@shastagroup.net Work: (530) 841-0621

Lumen John Archer 740 State St.

Salem, OR 97301 Johnathan.Archer@lumen.com relocations@centurylink.com Work: (503) 339-2219

MCI/Verizon Ian Lambie 2550 NE Aloclek Dr, Hillsboro, OR 97124 Ian.lambie@verizon.com Work: (503) 307-8212

Eagle Telephone Kevin Spencer 349 First Street, Richland, OR 97870 kevin@eagletelephone.net Work: (541) 540-5120

The Contractor shall notify, in writing, the Utilities listed above, with a copy to the Engineer, at least 14 Calendar Days before beginning Work on the Project. Utilities may require an on-site observer, at no cost to the Contractor.

Marathon Petroleum Corporation / Tesoro Logistics NW Pro, Williams NW Pipeline, Avista Utilities, & Cascade Natural Gas - Gas Utilities -

In the event of an emergency, and in addition to the calls required by the Utilities notification system, the Contractor shall call:

• Marathon Petroleum Corporation / Andeavor 1-800-725-1514; or

• Avista Corporation 1-800-227-9187; or

• Cascade Natural Gas Corporation 1-888-522-1130; or

• Williams Pipeline 1-801-584-6948.

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Oregon Trail Electric Co-op - Power Suppliers -

Energized power lines overhang portions of the Work with a minimum vertical clearance of 18 feet. The Contractor shall maintain at least 10 feet of safety clearance. Exceptions require written approval from the Power Supplier(s) and may require an on-site safety watcher, at no cost to the Contractor. The Contractor shall provide the Engineer a copy of the written approval of exception before beginning Work.

AT&T, Lumen, MCI/Verizon, & Eagle Telephone - Telecommunication Utilities -

The Contractor shall obtain written approval from Telecommunication Utilities that have fiber optic communication cable facilities, for excavating within 10 feet of a buried fiber optic communications cable. Telecommunication Utilities may require an on-site safety representative at no cost to the Contractor for monitoring purposes. The Contractor shall provide the Engineer a copy of the written approval before beginning Work.

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 all Aggregate products for this Project, that may warrant investigation and consideration for use by the Contractor on this Project is as follows:

(a) Prospective Material Source, Clover Creek Quarry:

• Source Number - OR-31-004-5

• DOGAMI Number - 31-0001

• Location - Approximately 7 miles north of North Powder on Interstate_84 in the

SW1/4 NE1/4 of Section 07, T. 05 S., R. 39 E., W.M.

• Access - At Exit 278 of Interstate 84, travel approximately 1.8 miles north on

Oregon Trail Road, then west approximately 0.4 miles on the access road.

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

• Existing - 3.5 acres

• Development - 3.0 acres

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.

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00235.04 Permits - Copies of the Plans, permit, 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.

Subsection Source Name Documents 00235.01(a) Clover Creek

Quarry Department of Geology and Mineral Industries (DOGAMI) Permit County Land Use Permit

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

Clover Creek Quarry

ODOT Geologist: Scott Billings, (541) 410-6693

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 as shown unless otherwise directed in writing.

Table 00235-1

Subsection Source Name Source items shown 00235.01(a) Clover Creek

Quarry Work area boundary Excavation area Safety berm Access roads Overburden storage area Scalpings stockpile Reject fines stockpile Oversize stockpiles Equipment and Processing areas

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.

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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.

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).

• Clear trees between September 1 and March 1. If operations are outside this time frame, notify the Engineer 14 calendar days prior to source occupancy. The Engineer will arrange to have an ODOT biologist conduct a required nesting bird survey throughout the site and relocate the nests if they are present.

• 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.

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

(a) Access:

• Develop and maintain an access road from the developed equipment and processing area to top of the proposed excavation and overburden storage area as applicable. Construct this road with a width of 12 feet and reasonably uniform grade, no steeper than a 16 percent grade (1V:6H), for access to the quarry floor. An approximate location for development of this road is shown on the Plans. Determine the exact location in the field. Obtain the Engineer's approval before constructing the access road.

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• Routine road maintenance activities such as grading and watering of the main 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.

• 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) Clearing and Grubbing - Before stripping of overburden clear and grub all trees within the excavation area, to be developed for equipment and processing and the area to be developed as access roads.

(c) Overburden - Before excavating, including drilling and blasting when required, strip and stockpile all soil overburden from within the excavation area, from the area to be developed for equipment and processing, and from areas to be developed as access road(s). Incorporate grass and small shrubs into the stockpiles. Do not remove grass or small shrubs from the overburden. Place stockpiles in the overburden storage area.

Maintain a minimum 10-foot buffer strip between the toe of the overburden storage area and the excavation area. Store overburden stripped from the equipment and processing area as shown, 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.

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.

Restrict blasting to the hours of half-hour after sunrise to half-hour before sunset, Monday through Friday. Do not blast on Saturdays, Sundays, or legal holidays as defined in ORS 279C.540.

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.

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

• If the Contractor chooses to utilize this material source, maintain the condition of

Oregon Trail Road 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.

• Maintain the cattle guard and livestock gate 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, except as noted below.

Process all material loosened in the source by the Contractor that meets quality requirements, with the following exception(s):

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• No additional oversize material with a maximum dimension of 2.5 feet may be stockpiled in the material source. Consolidate existing oversize material as shown.

• 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 internal haul roads and bench access road open. Do not rip or block the roads except a few boulders greater than approximately three feet in diameter may be used to block off access to the upper bench areas.

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

• Final maintenance on the main access road, such as regrading and/or spot surfacing, to restore to pre-operation condition, is required.

• 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 Work area 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 the material source.

00235.46 Seeding:

• In addition to other areas with soil cover within the site disturbed by the Contractor's operations, stabilize the overburden storage area, safety berms, and scalpings stockpile by seeding, mulching, and tackifying, as directed.

• Provide the following seed mixture:

BROADCAST RATE COMMON NAME SCIENTIFIC NAME

1.5 PLS lb/ac indian ricegrass Achnatherum hymenoides

2.0 PLS lb/ac squirreltail Elymus elymoides

1.4 PLS lb/ac slender wheatgrass Elymus trachycaulus ssp. trachycaulus

1.7 PLS lb/ac Idaho fescue Festuca idahoenis

1.7 PLS lb/ac basin wildrye Leymus cinereus

1.1 PLS lb/ac Sandberg bluegrass Poa secunda

5.1 PLS lb/ac bluebunch wheatgrass Pseudoroegneria spicata ssp. spicata

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

Inoculate the clover and alfalfa prior to incorporation into the seed mixture.

• 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.

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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, fuel spills, machinery leaks, plant 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.

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.

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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 subsections:

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" 85 - 100 No. 8 0 - 10 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 the1/4 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.

00680.11(d) Graded Medium Chip Aggregate – Provide graded medium chip aggregate according to 00710.10.

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 and stockpile total Aggregate quantities at either or both of the following locations:

Stockpile Site Location Quantity and Material to be Stockpiled North Powder Stockpile Site

I-84, MP 285.80

Up to a combined total of 15,000 cubic yards Graded Medium Chip Rock

North Powder Stockpile Site

I-84, MP 285.80

Up to a combined total of 5,000 cubic yards Sanding Rock

Baker Maintenance Station

OR 86, MP 2.62

Up to a combined total of 15,000 cubic yards Graded Medium Chip Rock

Baker Maintenance Station

OR 86, MP 2.62

Up to a combined total of 5,000 cubic yards Sanding Rock

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***