6-08 - Exhibit F - 2026 Residential Type II Slurry Project ST26SL.pdf

2026 Residential Type II Slurry Project City Project No. ST26SL

Solicitation No. 26-3442

Technical and Supplemental Specifications

City of Bend 710 NW Wall Street, Bend, Oregon 97703

Page | 1 January 2022

Table of Contents

PART 00200 – TEMPORARY FEATURES AND APPURTENANCE

Section 00210 - Mobilization

Section 00221 - Common Provisions for Work Zone Traffic Control

Section 00222 – Temporary Traffic Control Signs

Section 00223 - Work Zone Traffic Control Labor and Vehicles

Section 00224 - Temporary Traffic Channelizing Devices

Section 00225 - Temporary Pavement Markings

Section 00226 - Temporary Roadside Barriers and Impact Attenuators

Section 00228 - Temporary Pedestrian and Bicyclist Routing

Section 00231 - Temporary Access Road

Section 00270 - Temporary Fences

Section 00280 - Erosion and Sediment Control

Section 00290 - Environmental Protection

PART 00300 – ROADWORK

Section 00310 - Removal of Structures and Obstructions

Section 00320 - Clearing and Grubbing

Section 00330 - Earthwork

Section 00331 - Subgrade Stabilization

Section 00340 - Watering

Section 00440 - Commercial Grade Concrete

Section 00470 - Manholes, Catch Basins, and Inlets

Section 00480 - Drainage Curbs

Section 00490 - Work on Existing Sewers and Structures

PART 00600 – BASES

Section 00620 - Cold Plane Pavement Removal

Section 00640 - Aggregate Base and Shoulders

PART 00700 – WEARING SURFACES

Section 00950 - Removal of Electrical Systems

Page | 2

TECHNICAL SPECIFICATIONS

Boiler Plate changes from ODOT to 2021 Oregon Standard Specifications for construction are considered Special provisions when Added to Volume II Bidding and Contract Documents.

2021 Oregon Standard Specifications for Construction

Available from the ODOT website:

https://www.oregon.gov/odot/Business/Pages/Standard_Specifications.aspx

Page | 3

EXHIBIT A

Special Provisions for the Technical Specifications for the 2021 Oregon Standard Specifications for the Construction (OSS) – Technical Specifications

Special Provisions to the 2021 OSS Section 00210 - Mobilization

Page | 4

PART 00200 – TEMPORARY FEATURES AND APPURTENANCE

Comply with Section 00210 of the Standard Specifications.

End of Section

Page | 5

Exhibit B Project Supplemental Specification

SUPPLEMENTAL SPECIFICATIONS

EQUIPMENT /MATERIAL SOURCE INFORMATION

FOR GENERAL AND SUBCONTRACTORS

The bidder shall indicate opposite each item of equipment or material listed below, the name of the manufacturer or supplier of the equipment or material proposed to be furnished under the bid. Failure to comply with this requirement will render the proposal informal and may cause its rejection. Awarding of a contract under this bid will not imply approval by the Owner of the manufacturers or suppliers listed by the bidder. After the opening of proposals, no changes or substitutions will be allowed without written approval of the Owner.

Equipment/Material Manufacturer/Supplier

Page | 6

Section 00220 - Accommodations for Public Traffic

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

00220.02(a) General Requirements –

Replace the bullet that begins “Do not stop or hold vehicles…” with the following:

• Do not stop or hold vehicles within the work zone for durations longer than allowed in the approved traffic control plan.

Add the following bullet(s) to the end of the bullet list:

• Notify the Engineer a minimum of 7 Calendar Days prior to activating any traffic control changes. Include contact information for the TCS and Site Manager in the notice.

• Temporary steel plating is not allowed between November 1st and March 1st. Removal all steel plates 24-hours prior to a forecasted snow event of greater than 1 inch.

• When performing trench excavation or other excavation across or adjacent to a Traffic Lane on a roadway having a pre-construction posted speed greater than 35 mph, backfill the excavation, install surfacing, and open the roadway to traffic by the end of each work shift. Install a "BUMP" (W8-1-48) sign approximately 100 feet before the backfilled area and a "ROUGH ROAD" (W8-8-48) sign approximately 500 feet ahead of the "BUMP" sign. If this requirement is not met, maintain all necessary lane or shoulder closures and provide additional TCM, including flagging, at no additional cost to the Agency. Do not use temporary steel plating to reopen the roadway.

• Before activating a modified traffic signal, revising lane usage, implementing new roadway geometry, or removing a "STOP" sign, protect traffic by installing "NEW TRAFFIC PATTERN AHEAD" (W23-2) signing according to 00222.40. Keep the signs in place for 30 Calendar Days after completing the modifications.

• When excavation or paving operations create an abrupt edge, protect traffic by installing "ABRUPT EDGE" (CW21-7) signs every 500 feet.

00220.02(b) Temporary Pedestrian Accessible Route Plan –

Delete the bullet that begins “For intersection Work…”

Page | 7

Replace the bullet that begins “Limit pedestrian detour…” with the following:

• Limit pedestrian detour lengths to the shortest available accessible route.

Add the following bullet:

• Limit closure of pedestrian facilities to the duration established in the pre con schedule.

00220.03(b) Closures - Add the following bullet(s) to the end of the bullet list:

• Floatable Natural Waterway - A minimum of 35 Calendar Days before restricting or closing the public access site(s), listed below:

• Public Access Location - _________________ (as shown).

Submit to the Engineer, in writing, when the closure(s) or restriction(s) have ended.

00220.03(b) Closures –

• Lanes – A minimum of 72 hours before a lane closure begins.

• Roads – A minimum of 72 hours before closure. Also, notify in writing, all affected emergency services, school districts, and US Postal Service a minimum of 72 hours before any closure.

Replace the bullet that begins “Pedestrian Facilities – A minimum of 14 Calendar Days…” with the following bullet:

• Pedestrian Facilities - A minimum of 72 hours before closing a sidewalk, Multi-Use Path, or other pedestrian facility. After receiving written approval, provide 48 hours’ public notification before the closure.

Replace the bullet that begins “Bicycle Facilities – A minimum of 14 Calendar Days…” with the following bullet:

• Bicycle Facilities - A minimum of 72 hours before closing a bicycle lane. After receiving written approval, provide 48 hours’ public notification before the closure.

Add the following paragraph to the end of the subsection:

Page | 8 January 2022

Provide a minimum of 48 hours’ notice to occupants of properties fronting a street where more than half the street will be closed to vehicular traffic. Coordinate street closure with all affected individuals and public agencies.

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

One or more Traffic Lanes may be closed on TBD Scheduled dates between 7am and 4pm when allowed, shown, or directed during the following periods of time except as specified in 00220.40(e)(2):

• TBD

00220.40(e)(2) Opened Lanes – Replace the sentence that begins “Keep all Traffic…” with the following paragraph:

Maintain two-way traffic at all times unless otherwise allowed. Streets shall remain open for two-way traffic at all times when the Contractor is not performing work unless otherwise allowed. Maintain access to approaches to all properties except for short periods necessary for the progress of the construction. Keep all Traffic Lanes and pedestrian facilities open during the following periods:

Day Work:

Provide a detailed map of road closures, provide No Parking signs and Door Hangers to each resident that is going to be affected

Do not close any traffic lanes and remove all barricades and objects from the roadway during the following periods:

(1) Weekdays – Between 6:30 p.m. and 7:00 a.m. Monday through Friday

(2) Weekends – Between 6:30 p.m. on Friday and 7:00 a.m. on Monday

00220.40(e)(2)(b) Special Events - Add the following to the end of this subsection:

The following special events will occur during this Project:

• Downtown Events – every Friday, Saturday and Sunday for life of Contract, and or any events that would fall within the project.

Section 00221 - Common Provisions for Work Zone Traffic Control

Page | 9

Section 00221 - Common Provisions for Work Zone Traffic Control

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

00221.06 Traffic Control Plan – Add the following sentences after the sentence that begins The Contractor will be allowed to use the Agency’s TCP, modify the Agency’s TCP, or use a different TCP. Submit the following, for approval, five calendar days before the preconstruction conference:

Traffic will be permitted to be stopped or held under flagging for ___ minutes within the work zone.

00221.40 General – Add the following paragraph to the end of the subsection:

In addition to the roles having authority per Section 00150, the City of Bend Street Maintenance Supervisor and uniformed police officers, have authority to orally temporarily suspend work for failure to maintain traffic control devices.

Section 00222 – Temporary Traffic Control Signs

Page | 10

00222.00 Scope - In addition to the requirements of Section 00221, this Work consists of furnishing, installing, moving, operating, maintaining, inspecting, and removing temporary signs.

Materials

00222.10 Temporary Signs - Furnish temporary signs meeting the requirements of the "Acceptable" category shown in the ATSSA Quality Guidelines for Temporary Traffic Control Devices and Features handbook, available from the ATSSA website. Use materials and fabricate signs conforming to Section 00940, Section 02910 and the following:

(a) Size and Shape - Use standard size and shape signs meeting the requirements of 00221.01(c) unless otherwise specified or ordered. Double-face signs will not be allowed except for the flagger "STOP/SLOW" paddle. For diamond shaped warning signs, use 48 by 48 inch signs unless otherwise shown or specified.

(b) Type - Use ASTM Type VIII or IX sheeting from the QPL for fluorescent orange retroreflective sheeting on temporary warning signs and ASTM Type III or IV sheeting from the QPL for all other fluorescent colored retroreflective sheeting on temporary signs, unless otherwise indicated in this Section or in the TCP. Fabricate these signs on one of the following materials: New sheet aluminum sign blanks. New extruded aluminum panels. Used sheet aluminum sign blanks that are without bends, tears, holes, or dents and that have been cleaned to bare metal. 3/4 inch high-density overlay plywood. 3/4 inch medium-density overlay plywood.

(c) Folding or Turning Signs - Temporary signs on posts may be the folding or turning type as long as they can be locked when not in use so the sign message is not visible to any traffic.

(d) Roll-up Signs - Use roll-up signs with retroreflective roll-up sign sheeting from the

QPL.

00222.11 Sign Supports:

(a) Wood Sign Posts - Use wood sign posts in the sizes and quantities as shown on the Standard Drawings and according to 02110.40, except posts may be untreated.

(b) Portable Sign Supports - Use portable sign supports from the QPL and conforming to the following:

• Free standing.

• Capable of supporting signs in vehicle-caused turbulence and in winds common to the area where they are used. If additional ballast is required to maintain the signs in an upright position, use sandbags to anchor the sign support legs. Place a sandbag filled with loose sand (approximately 25 pounds) across the bottom of each leg as needed.

(c) Temporary Barrier Sign Supports - Use concrete barrier sign supports that meet the

Page | 11 January 2022 following:

• Conform to the Standard Drawings.

• Attach securely to the top of the concrete barrier.

• Support a maximum 12 square feet of total sign area.

(d) Temporary Sign Supports - Fabricate and use TSS as shown on the Standard Drawings and according to 02110.40, except posts may be untreated.

(e) Perforated Steel Square Tube Sign Supports - Use perforated steel square tube (PSST) sign supports from the QPL and as shown on the Standard Drawings. For PSST sign supports mounted on portland cement concrete surfaces, use surface mounted post anchors according to the manufacturer's recommendations.

00222.12 Sign Covers:

(a) Temporary Signs - Use sign covers for temporary signs that meet the following requirements:

• From the QPL or made from one of the following materials:

• One-piece plywood.

• Geotextile fabric.

• Large enough to completely cover the sign and attached rider signs.

• Easy to attach to and remove from the sign without damaging the sign face.

• Black and non-reflective.

• Opaque to prevent message visibility under day and nighttime conditions.

(b) Permanent Signs - Sign covers for permanent signs shall conform to Section 00941.

00222.13 Sign Flags - Sign flags shall be:

• Fluorescent red-orange.

• Square 16 by 16 inches or larger.

• Made from an acceptable tightly woven fabric or plastic sheeting.

00222.14 Sign Flag Boards - Use sign flag boards as shown on the Standard Drawings.

00222.15 Temporary Electrical Signs - Furnish electrical signs meeting the following requirements:

(a) Sequential Arrow Signs - Use Type "C" sequential arrow signs from the QPL.

(b)Portable Changeable Message Signs - Use PCMS from the QPL.

Page | 12 January 2022

(b) Radar Speed Trailers - Use radar speed trailers with a Type 2 panel from the QPL, Conditional List, or as approved. Construction

00222.40 Temporary Signs - Once temporary signs have been accepted and paid for on the Project, do not remove them from the Project, until directed by the Engineer.

For all temporary warning signs use fluorescent orange retroreflective sheeting background.

Install all temporary signing according to the Plans, Section 00940, the MUTCD, the Sign Policy and Guidelines for the State Highway System, FHWA Standard Highway Sign manual and the following:

Speed Signs - Use speed signs as follows:

(1) Advisory Speed Signs - Install advisory speed warning signs or riders as shown or directed.

(2) Regulatory Speed Zone Signs - Install and maintain regulatory speed zone signs as directed and according to the "Temporary Speed Zone Order" signed by the State Traffic Engineer.

When regulatory speed zone signs are used, cover conflicting existing regulatory speed zone signs with sign covers according to Section 00941. Cover or remove temporary regulatory speed zone signs and restore the original speed zone signs according to the "Temporary Speed Zone Order" and when directed.

If an existing regulatory speed zone sign displaying the original speed is 1,000 feet or less beyond the limits of the temporary speed zone, additional temporary regulatory speed zone signs displaying the original speed are not required.

(b) Roll-up Signs - Roll-up signs may be used at a single location for no more than 48 consecutive hours. Place roll-up signs within the active Work Area on portable roll-up sign supports. Remove all inappropriate roll-up signs at the end of each shift.

(c) Inconsistent Temporary Signs - Ensure that all temporary signs are properly used and consistent with the work zone. Cover all inconsistent temporary signing until the sign messages are applicable to the Work that is beginning. When signage is no longer required for staging or shift Work, remove all temporary signs, sign flag boards, supports, sign covers, and ballast associated with the staging or shift Work.

When temporary sign messages conflict with work zone conditions, traffic patterns, or other staging configurations, but signs are needed later in Project, do the following:

• Turn or cover the signs so the message is not visible to any traffic.

• Remove or cover sign flag boards.

Page | 13 January 2022

• When covering signs and sign flag boards, use covers meeting the requirements of 00222.12.

When it is determined that only minor Work remains on the Project and the work area does not encroach on Traffic Lanes or Shoulders, do the following:

• Remove all temporary signs, including the advance construction and Project identification signs.

• Remove all sign flag boards and ballasts.

• Use roll up signs on portable sign supports for minor or short duration Work.

(d) Permanent Signing - When permanent sign messages conflict with adjacent temporary signing, work zone conditions, traffic patterns or other staging configurations, do the following:

• Turn or cover the signs so the message is not visible to any traffic.

• When covering signs, use sign covers meeting the requirements of 00222.12(b).

When work zone conditions change and permanent sign messages no longer conflict with temporary signing, uncover permanent signs. Install or uncover appropriate permanent signing as required, before changing traffic control staging.

(e) Temporary Sign Placement - Place temporary signs as shown, specified, and directed:

• Install a "TRUCKS" (W11-10) sign with an 18 inch "500 FEET" (W16-4P) plaque, approximately 500 feet before each point of access of all noncommercial stockpile sites, work zone staging area, material sources, waste areas, and plant set-up areas to a public Roadway.

• When a through road intersects the work zone, place a "ROAD WORK AHEAD" (W20-

1) sign in advance of the intersection at sign spacing "A" from the "TCD Spacing Table" shown on the Standard Drawings, or as shown in the TCP. These signs do not require sign flag boards, unless otherwise directed.

• When a cold planed Pavement surface is used by traffic, install the following temporary signs:

• "BUMP" (W8-1) sign approximately 100 feet in advance of the transverse paving edge.

• "GROOVED PAVEMENT" (W8-15) sign with a 24 inch "Motorcycle" (W8-15P) rider in advance of the “BUMP” sign at sign spacing "A" from the "TCD Spacing Table" shown on the Standard Drawings, or as shown in the TCP.

Face signs toward incoming traffic and install them before opening the cold planed surface area to Public Traffic. Protect exposed transverse and longitudinal cold planed Pavement edges according to 00221.07(c).

00222.41 Sign Supports:

Page | 14 January 2022

(a) Wood Sign Posts - Except as provided in the following (b) through (f), mount all temporary signs on wood sign posts as shown.

• When sign posts are installed in Rock, a shorter post may be used if the post is installed in a buried concrete footing at least 12 inches in diameter and 2 feet deep.

(b) Portable Sign Supports - Use portable sign supports as follows:

• When signs are needed at a single location for no more than 48 consecutive hours.

• Positioned so the lowest point of the sign is at least 1 foot above the Roadway surface.

• With roll-up signs.

• With ballast to prevent tipping of the signs in high wind.

Turn, cover, or remove signs at the end of each work shift when the condition is no longer in effect.

(c) Temporary Barrier Sign Supports - Mount signs on temporary barrier so the:

• Lowest point of the sign is at least 7 feet above the Roadway surface.

• Temporary sign and post are held securely to temporary barrier by an approved device.

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

(d) Temporary Sign Supports - Use TSS as follows:

• When signs are needed at a single location for more than 48 consecutive hours.

• When not practicable to post mount due to location or when Utility conflicts exist.

• Provide reflective sheeting on TSS posts as shown in the Standard Drawings.

• Do not tip over any TSS that is exposed to traffic, unless approved by the Engineer or the TSS is protected from traffic by a barrier system. Position TSS as shown on the Standard Drawings or in the TCP.

• When not in use, locate TSS as far from Public Traffic as practicable and turn away from traffic, or cover the sign. Do not cover reflective sheeting on the TSS posts.

(e) Perforated Steel Square Tube Sign Supports - Perforated steel square tube sign supports may be used as a substitute for wood sign posts. Install perforated steel square tube sign supports as shown on the Standard Drawings. For PSST sign supports mounted on portland cement concrete surfaces, use surface mounted post anchors according to the manufacturer's recommendations.

(f) Existing Facility Sign Supports - When mounting temporary signs on existing facilities, install signs as shown on the Standard Drawings or other mounting methods approved by the Engineer.

Page | 15 January 2022

00222.45 Temporary Electrical Signs - Provide and install temporary electrical signs as follows:

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

• To indicate a lane closure only. Use one sequential arrow sign for each lane being closed.

• Install where the sign is visible from 1/2 mile minimum.

• Mount at a height of 7 feet from bottom of sign to ground.

• Do not use on 2-Lane, 2-Way Roadway.

• For Shoulder Work use caution mode only.

• Provide a solar/battery power source.

(b) Portable Changeable Message Signs - Use PCMS according to the Oregon Portable Changeable Message Sign Handbook and as follows:

• Program concise accurate messages according to the Oregon Portable Changeable Message Sign Handbook.

• Install beyond the outside Shoulder, behind existing barrier or guardrail, as shown in the TCP, or as directed when conditions do not allow the PCMS to be located beyond the Traffic Lane.

• Install the PCMS device where it can be seen from 1/2 mile minimum. The PCMS message should be legible from 800 feet in the daytime and 600 feet at night.

• Mount so that the bottom of the sign is 7 feet above the ground.

• Program so that the entire message is displayed within 8 seconds.

• Use a maximum of two panels to display an entire message.

• Separate two PCMS used in sequence by 1,000 feet minimum.

• Messages shall not scroll horizontally or vertically across the face of the sign.

• When the PCMS is not being used to display any messages for more than 5 consecutive

Calendar Days, remove the PCMS from the Roadway and locate the device at least 30 feet from the edge of the nearest Traffic Lane, place behind a barrier system, or as directed.

• Provide a solar/battery power source.

• Obtain approval from the Engineer / Project Manager before displaying or altering messages.

• Type B, Mini PCMS use is limited to locations where the preconstruction posted speed is 40 mph or less.

Measurement

Work covered under this Section will be measured according to the following:

Method “B” – Lump Sum Basis – Under this method, no measurement of quantities will be made.

Payment

Page | 16 January 2022

00222.91 Payment, Lump Sum or Incidental Basis - When the Contract Schedule of Items does not indicate payment for Work performed under this Section, no separate or additional payment will be made. Payment will be included in payment according to 00221.98 or 00221.99.

Comply with Section 00222 of the Standard Specifications.

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

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

• When the horizontal clearance for the Roadway is less than 19 feet, install horizontal clearance (CW21-12-48) signs, identifying the narrowest width of the Roadway. Locate these horizontal clearance signs as shown or as directed.

• When the vertical clearance is less than 15 feet 6 inches, install low clearance (W12-2-48) and (OW12-2-36) signs. The clearance shown on the signs shall be 4 inches less than the shortest height of the opening. Locate these low clearance signs as shown or as directed.

• When construction requires bicycles to use the Traffic Lanes, install a "Bicycle ON

ROADWAY" (CW11-1) symbol sign on 1/2 mile spacing through the affected area. Keep the signs in place until completion of the Shoulder or bikeway final surface.

Section 00223 - Work Zone Traffic Control Labor and Vehicles

Page | 17

Section 00223 - Work Zone Traffic Control Labor and Vehicles

Comply with Section 00223 of the Standard Specifications.

Comply with Section 00223 of the Standard Specifications modified as follows:

00223.23 Automated Flagger Assistance Device - In the sentence that begins "Submit the following information…", replace the words "21 Calendar Days" with the words "14 Calendar Days ".

00223.80(b)(1) Flaggers – Add the following paragraph to the end of the subsection:

Flaggers not approved by the Engineer or included on the approved traffic control plan and schedule will not be measured for payment.

Section 00224 - Temporary Traffic Channelizing Devices

Page | 18

Section 00224 - Temporary Traffic Channelizing Devices

Comply with Section 00224 of the Standard Specifications.

Comply with Section 00224 of the Standard Specifications modified as follows:

Add the following subsection:

Section 00225 - Temporary Pavement Markings

Comply with Section 00225 of the Standard Specifications.

Section 00226 - Temporary Roadside Barriers and Impact Attenuators

Page | 19

Section 00226 - Temporary Roadside Barriers and Impact Attenuators

Comply with Section 00226 of the Standard Specifications.

Section 00228 - Temporary Pedestrian and Bicyclist Routing

Page | 20

Section 00228 - Temporary Pedestrian and Bicyclist Routing

Comply with Section 00228 of the Standard Specifications modified as follows:

Section 00231 - Temporary Access Road

Page | 21

Section 00231 - Temporary Access Road

Description

Maintenance

Section 00270 - Temporary Fences

Comply with Section 00270 of the Standard Specifications.

Section 00280 - Erosion and Sediment Control

Page | 22

Comply with Section 00280 of the Standard Specifications modified as follows:

00280.00 Scope - Add the following two paragraphs to the end of this subsection:

When applicable, obtain an NPDES 1200-C Permit from the authorizing local jurisdiction for the Project or phase.

When applicable, comply with the WPCF UIC Permit or rule authorization requirements in its absence. Copies of any local or state agency/government permit(s) are available from the permitted agency/government and may be more stringent than these Specifications.

00280.05 Erosion and Sediment Control Plan on Non-Agency Controlled Lands – Replace the bullet that begins “A Contractor-developed ESCP…” with the following bullet:

• A Contractor-developed ESCP for each unique site covered under applicable Federal, state, or local permits or regulations.

00280.16(a) Construction Entrances – Replace the “Aggregate” bullet with the following bullet:

• Aggregate – Furnish 3-6 inch aggregate for construction entrances. If tracking of aggregate onto the street is of concern, 6-8 inch stone can be used. Material will be visually accepted in the field.

00280.30 Erosion and Sediment Control Manager –

Replace the bullet that begins “Monitor water quality…” bullet with the following bullet:

• Monitor water quality in receiving streams and UICs in the vicinity of the Project Site.

Add the following paragraph after the paragraph that begins “Provide the ESCM name…”:

The ESCM, or designee, must be able to respond to the site within 90 minutes of notification during storm events. Include the storm response plan in the ESCP.

00280.41(c) Wet Season Work and Temporary Work Suspension – Add the following paragraph to the end of the subsection:

Page | 23

Wet season work is defined as work between October 1 and June 30.

00280.42(a) Soil Exposure Limitations – Replace this subsection, except for the subsection number and title, with the following:

• East of the Cascades (October 1 through June 30) – Stabilize all other areas within 5 days of exposure.

• East of the Cascades (July 1 through September 30) – Stabilize construction areas within 10 days of exposure.

00280.42(b) Temporary Stabilization –

Replace the first bullet with the following:

• Every 5 days (October 1 through June 30), every 10 days (July 1 through September 30), or more frequently as needed or directed.

Delete the bullet that begins “Upon approval, active…”.

00280.63(c) Paved Areas – Add the following sentence to the end of the subsection:

Street washing is not permitted.

00280.70 Removal – Add the following paragraph to the end of the subsection:

The cost of damage to public right-of-way or private property resulting from not removing erosion control materials will be at the Contractor’s expense.

Section 00290 - Environmental Protection

Page | 24

Section 00290 - Environmental Protection

Comply with Section 00290 of the Standard Specifications.

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

00290.20(c)(2) Clean Fill - Add the following paragraph to the end of this subsection:

Manage all excavated soil that does not meet the definition of clean fill according to Section 00294.

00290.20(c)(3)(a) Burnable Materials – Delete this subsection.

00290.20(c)(3)(b) Woody Matter – Delete this subsection

00290.30(a)(1) General – Replace the bullet that begins “Comply with the…” with the following bullet:

• Comply with the erosion prevention and sediment control requirements of Section 00280, local requirements, and all applicable DEQ NPDES 1200 Permit requirements.

Section 00310 - Removal of Structures and Obstructions

Page | 25

PART 00300 – ROADWORK

Section 00310 - Removal of Structures and Obstructions

Comply with Section 00310 of the Standard Specifications.

00310.41 Removal Work: (a) General - Where an abutting Structure or part of a Structure is to be left in place, make clean, smooth, vertical cuts with a saw or other approved cutting device. Avoid operations that may damage any portion of the remaining Structure.

Section 00320 - Clearing and Grubbing

Comply with Section 00320 of the Standard Specifications modified as follows:

00320.40(b)(3) Vegetation and Materials to be Saved – Add the following to the end of this subsection:

Where the plans call for the preservation of trees, provide a tree preservation plan a minimum of 7 Calendar Days prior to beginning clearing and grubbing. Include, at a minimum, the following in the tree preservation plan:

Method of protecting each tree Trimming procedure Watering schedule Root cutting procedure

The Contractor shall routinely water the preservation zone to keep the area moist

As soon as possible, but not more than two weeks prior to any required construction in a preservation zone per the exceptions above, thoroughly saturate the preservation zone with water.

When necessary to excavate or trench through a preservation zone, trim all roots exposed by the excavation. Do not tear or pull roots from the ground with construction equipment but cleanly saw them immediately when exposed by the equipment. An exception shall be rock saws. However; however, rock saws shall be operated to minimize the shattering of roots.

Section 00320 - Clearing and Grubbing

Page | 26 January 2022

Backfill trenches in a preservation zone as soon as possible to minimize the drying of exposed roots. Where trenches need to be open longer than six hours, cover with burlap and keep moist exposed roots on the trench wall sides.

00320.42 Disposal of Matter - Replace this subsection, except for the subsection number and title, with the following:

Dispose of all matter and debris according to 00290.20. Open burning of materials is prohibited within the City limits.

00320.42 Ownership and Disposal of Matter - Vegetation and natural material designated for preservation and salvage are the property of the Agency. All other matter and debris accumulated from clearing and grubbing operations become the Contractor’s property at the place of origin. Dispose of all matter and debris according to 00290.20.

Section 00330 - Earthwork

Page | 27

Comply with Section 00330 of the Standard Specifications modified as follows:

00330.14 Selected Granular Backfill - Delete the sentence that begins “Reclaimed glass meeting the requirements of Section 02695…”

00330.15 Selected Stone Backfill - Delete the sentence that begins “Reclaimed glass meeting the requirements of Section 02695…”

00330.41(a)(4) Excess Materials - Replace this subsection, except for the subsection number and title, with the following:

If the quantities of excavated materials are greater than required to construct embankments and to do all filling and backfilling, the Contractor may use the remaining materials to uniformly widen embankments or to flatten slopes in a manner satisfactory to the Engineer.

00330.43(b) Moisture-Density Testable Materials – Add the following to the end of the subsection:

(3) Place moisture-density testable material in nearly horizontal layers with thickness as necessary to meet the requirements of Section 00330.43(b)(2)(b) but not more than 18 inches.

00330.80 Measurement – Add the following bullet:

• Lump sum basis, no measurement of quantities will be made. Approximately ____ Cubic Yards of earthwork will be required on this project.

00330.92 Kinds of Incidental Earthwork - Add the following bullet(s) to the end of the bullet list:

• Excess material used to widen embankments or flatten slopes according to 00330.41(a)(4).

• Earthwork required for driveways and road approaches. Earthwork for driveways and road approaches will be that which is outside the Neat Line limits shown on the typical sections.

Page | 28 January 2022

00330.95 Earthwork Lump Sum Basis Payment – Earthwork will be paid for at the Contract lump sum amount for the item “Earthwork”.

Section 00331 - Subgrade Stabilization

Page | 29

Section 00331 - Subgrade Stabilization

Comply with Section 00331 of the Standard Specifications.

Section 00340 - Watering

Page | 30

Section 00340 - Watering

Comply with Section 00340 of the Standard Specifications modified as follows:

00340.10 Water – Add the following to the end of this subsection:

For a charge, the City can provide water from a fire hydrant or similar source within the City’s water service area. Application for a hydrant meter permit is available through the City Permit Center.

Section 00440 - Commercial Grade Concrete

Comply with Section 00440 of the Standard Specifications modified as follows:

00440.11 Proportions – Add the following to the end of the bullet list:

• Fiber - ½ bag per yard for curb and flat work

00440.12 Properties of Commercial Grade Concrete –

In the bullet that begins “Entrained Air…” replace “4.0 to 7.0 percent” with “4.5 to 7.5 percent”.

In the bullet that begins “Compressive Strength…” replace “3,000 psi” with “4,000 psi”.

00440.40(b) Placing - Add the following bullet to the end of the bullet list:

• When haul time or placement conditions warrant exceeding the time of discharge, submit a detailed breakdown of the estimated time needed from batching to discharge of a load along with the measures that will be taken to ensure slump, temperature and uniformity will be maintained. Submit in advance to establish a new time limit at the Engineer’s discretion.

00440.40(d) Weather - Replace this subsection, except for the subsection number and title, with the following:

Do not place CGC when the air temperature is below 35 °F or above 100 °F without approval.

Section 00440 - Commercial Grade Concrete

Page | 31 January 2022

Protect CGC from freezing if the air temperature is expected to drop below 35 °F during the first 5 Calendar Days after placement.

When the air temperature exceeds 90 °F, place concrete in accordance with ACI 305R-10.

Section 00470 - Manholes, Catch Basins, and Inlets

Page | 32

Section 00470 - Manholes, Catch Basins, and Inlets

Comply with Section 00470 of the Standard Specifications modified as follows:

Section 00480 - Drainage Curbs

Comply with Section 00480 of the Standard Specifications.

Section 00490 - Work on Existing Sewers and Structures

Page | 33

Section 00490 - Work on Existing Sewers and Structures

Comply with Section 00490 of the Standard Specifications modified as follows:

00490.43 Abandoning Pipes in Place - Replace this subsection, except for the subsection number and title, with the following:

Abandoning pipe in place is not allowed. All abandoned utilities are required to be removed and disposed of properly, unless otherwise approved by the Engineer.

When pipe abandonment is approved, drain abandoned pipes and plug watertight. Plug abandoned pipes with gasketed mechanical plugs or grout seals, as directed. Where abandoned pipes connect to sewer manholes, install the plugs or seals from the inside of the manhole and reshape the channel to conform to the Standard Drawings.

Fill abandoned pipes greater than 12 inches diameter with sand, controlled low-strength material meeting the requirements of 00442, or other approved material.

00490.48 - Adjusting Boxes, Cleanout Lids and Similar Structures – DELETE this subsection and REPLACE with the following:

Raise or lower boxes, lids and similar structures by one of the following methods:

• Resetting the entire structure on a firm foundation.

• Adding extensions of like material below the original structure if raising the structure to a point where it would not enclose or protect its contents.

Section 00620 - Cold Plane Pavement Removal

Page | 34

PART 00600 – BASES

Section 00620 - Cold Plane Pavement Removal

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

00620.40(e) Warning Signs - Replace this subsection, except for the subsection number and title, with the following:

Provide warning signs as required where abrupt or sloped drop-offs occur at the edge of the existing or new surface according to Sections 00221 and 00222.

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

Traffic will be allowed on the cold planed surface up to _7__ Calendar Days after removing the existing surface. Sweep and clean the cold planed surface before opening to traffic.

Submit a plan describing how drainage will be maintained while traffic is on the cold planed surface at least 7 Calendar Days prior to cold planing.

00620.80 Measurement – ADD the following at the end of this subsection:

At the end of each shift, the Contractor is required to provide the quantities of Cold Plane Pavement Removal performed to the City. Documentation to be provided to inspector to verify finial quantities for billing. If Cold plane removal is not provided before paving is completed the quantities shown on the plans will be used for billing purposes. City of Bend project manager will provide excel cold plane removal spread sheet to be filled out at the end of each shift.

Section 00640 - Aggregate Base and Shoulders

Page | 35

Comply with Section 00640 of the Standard Specifications modified as follows:

00640.41 Hauling and Placing - Add the following paragraph to the end of this subsection:

Prior to the placement of base rock, completely install, grout, seat, backfill, set to finish grade, and compact test around all structures (e.g. manholes, utilities, catch basins).

00640.90 Payment – Replace this subsection, except for the subsection number and title, with the following:

The accepted quantities of Aggregates will be paid for at the Contract unit price, per unit of measurement, for the following items:

Pay Item Unit of Measurement

(a) Aggregate Base ................................................................. Ton

(b) Aggregate Shoulders ........................................................ Ton

No separate or additional payment will be made for water used to obtain proper compaction and in the care of the Work.

When the Contract Schedule of Items does not indicate payment for Work performed under this Section, no separate or additional payment will be made. Payment will be included in payment made for the appropriate items under which this Work is required.

Page | 36

PART 00700 – WEARING SURFACES

Section 00706 - Emulsified Asphalt Slurry Seal Surfacing

Description

00706.00 Scope - Delete and Replace with the following:

- SLURRY SEAL SPECIFICATIONS – (Latex Modified)

DESCRIPTION: The Contractor shall furnish all labor, equipment, material, supplies, signage, traffic control, and other incidentals necessary to provide a Slurry Seal. Slurry Seal shall consist of a mixture of an approved Latex Modified emulsified asphalt, mineral aggregate, water, and specified additives, proportioned, mixed and uniformly spread over a properly prepared asphalt surface. The completed Slurry Seal shall leave a homogeneous mat, adhere firmly to the prepared surface, and have a skid-resistant surface texture throughout its service life.

00706.02 Abbreviations:

ISSA - International Slurry Surfacing Association

ASSHTO

Materials

00706.10 - Delete and Replace with the following:

Asphalt Emulsion: The asphalt emulsion for slurry seal shall be a Quick Setting type LM- CQS-I H (Latex Modified, Cationic Quick Set) the specification for Slurry Emulsion is in accordance with the material properties and test methods as specified by ISSA and

AASHTO.

Latex may separate from the emulsion due to the differences in density. If separation occurs, the latex must be remixed into the emulsion by circulation in the tanker before the modified emulsion is transferred to the slurry machine for application.

Page | 37

00706.11- Delete and Replace with the following: Latex Modified Emulsion - Furnish LM- CQS-1h Latex modified emulsion. The latex modifier shall be either a solid synthetic rubber or latex material. Combine the Latex modifier with the base asphalt or asphalt emulsion, prior to loading at the manufacturing plant, at the minimum rate of 2.5 to 3 percent polymer solids by weight of asphalt. The latex modified emulsion shall be compatible with the mix design developed for the conventional slurry seal. Each shipment of emulsified asphalt shall be accompanied by a certificate of analysis or certificate of compliance from the manufacturer.

Asphalt Storage: Any emulsified asphalt storage used by the Contractor shall be suitable with the storage container constructed so as to prevent water from entering the asphalt.

An acceptable heating system shall be provided if necessary to prevent the emulsified asphalt from freezing, but the asphalt shall not be heated to a temperature greater than 130 F.

00706.12 - Delete and Replace with the following:

706.12 Aggregate: The mineral aggregate used shall be manufactured crushed stone such as granite, slag, limestone, chat, or other high-quality aggregate, or combination thereof. To assure the material is totally crushed, 100 percent of the parent aggregate will be larger than the largest stone in the gradation to be used. The aggregate shall meet the following test requirements: The finished product shall be clean, uniform in quality and free from wood, bark, roots and other deleterious materials. It may be necessary during stockpiling to add blending sand or filler to improve the grading of the mineral aggregate.

For this purpose only, crushed fines from the aggregate source may be used but only in the minimum amount needed for optimum mix design and workability. When tested in accordance with ASTM Designation D2419, the total aggregate blend shall have a sand equivalent of not less than 65. The aggregate shall consist of 100% crushed rock. The combined mineral aggregate including blending sand and fillers, but not Portland cement, shall conform to the following grading limits.

TEST ON EMULSION TEST METHOD LIMITS

Viscosity at 77 F., Saybolt-Furol, sec. AASHTO T 59 20-100 Sieve Test, % AASHTO T 59 ≤0.10 Particle charge, Electroplate AASHTO T 59 POSITIVE Residue by Distillation, % AASHTO T 59 ≥62 Softening point (ring & ball) degrees F AASHTO T 53 135

TEST ON RESIDUE TEST METHOD LIMITS

Penetration, 77º F (25 ºC), AASHTO T 49 <90 Ductility at 77º F (25 ºC), in/min AASHTO T 51 >15.7 Elastic Recovery, % AASHTO T 240 25 Polymer Content, % (by weight) Supplier Cert. > 2.5

Page | 38 January 2022

Gradation Table – Aggregate (percent passing) (a) (b)

Sieve Size TYPE II TYPE III Tolerance 3/8" 100 100 + or – 5% No. 4 90-100 70-90 + or – 5% No. 8 65-90 45-70 + or – 5%

No. 16 45-70 28-50 + or – 5% No. 30 30-50 19-34 + or – 5% No. 50 18-30 12-25 + or – 4%

No. 100 10-21 7-18 + or – 3% No. 200 5-15 5-15 + or – 2%

(a) Meets ISSA gradation.

(b) If oversize material is present, screening through a ¼” screen will be required prior to delivery to the slurry machine. If clay balls are present, the aggregate may not be used.

Resistance to Degradation (ASTM C131grading D) 20% maximum loss Soundness of Aggregate (ASTM C88) 15% maximum loss Sand Equivalent (ASTM D 2419) 55% maximum LA Abrasion (AASHTO T96) 20% maximum loss

Stockpiling of Aggregate: Precautions shall be taken to ensure that a stockpile does not become contaminated with oversized rock, clay or silt or collect excessive amounts of moisture. The stockpiles shall be placed on hard surfaces (Asphalt and Or Concrete surface) and in an area that drains readily. Segregation of the aggregate will not be permitted. The stock pile and staging area should be as close as possible to Job location

00706.13 - Delete and Replace with the following: Additives and Mineral Filler:

Additives: Any material added to the slurry mixture or any of the component materials shall be approved by the Project Manager prior to use, and the Contractor shall furnish a statement describing the additive, its purpose and quantity to be used.

The quantities of additives shall be initially predetermined by the mix design and field adjustments, if required, shall be approved by the Project Manager. Liquid retardant (used with the Quick Set Emulsion) shall only be used if needed to improve workability of the mix.

Mineral filler, for example, Portland cement, hydrated lime, limestone dust, fly-ash or other approved filler, if required by the mix design, shall meet the requirements of ASTM D242. The type and amount, if necessary, shall be determined by the mix design. And shall be consider the dry aggregate

00706.14 Water - Delete and Replace with the following:

All water used with the slurry mixture shall be potable. The Contractor shall ensure that the water planned for use shall be compatible with the slurry mix. If the contractor elects to obtain water from fire hydrants, the contractor shall obtain, install and use an approved construction water meter and pay such fees and service charges as are normally charged by the water department.

00706.15 Job Mix Formula - Delete and Replace with the following:

Page | 39 January 2022

706.15 Mix Design: A minimum of 10 calendar days prior to accomplishing any slurry sealing, the Contractor shall submit a signed original of a mix design for approval by the Project Manager. The mix design shall be developed using the specific materials for this project. Previous mix designs shall not be accepted unless authorized by the Project Manager. Once the materials are approved, no substitution will be permitted unless first tested and approved by the laboratory preparing the mix design.

The design shall be performed in accordance with International Slurry Surfacing Association (ISSA) Technical Bulletin No. 111 "Outline Guide Procedure for Slurry Seal". The mix design shall be developed such that the treated area will be opened to traffic within 2 to 3 hours after placement of the slurry seal mixture.

The following laboratories are pre-approved for performing the mix design:

Petroleum Sciences - North 4817 Freya #3 (UPS) P.O. Box 6304 Spokane, WA 99207 Contact: Bob Dunning - (509) 489-1758 Akzo Nobel Chemicals Inc. Asphalt Applications 7101 Adams Street, Willowbrook, Illinois 60521 Contact: Tony Ng - (630) 288-2922 Other laboratories may be approved by the Project Manager if they have the capability to perform the required tests and demonstrate satisfactory experience performing slurry seal mix designs.

As a minimum, the mix design report shall include the following information:

Aggregates: Results of Quality tests (Los Angeles Wear, Sand Equivalent, etc.) Gradation Asphalt: Results of Specification tests Residual Asphalt % by Weight of Dry Aggregate (7.5-13.5 Type II, 6.5-12.0 Type III) Water: Percentage by weight of dry aggregate (Report design quantity and minimum and maximum limits) Mineral Filler (if necessary): Type to be used Percentage by weight of dry aggregate (Report design quantity and minimum and maximum limits) Additives (if necessary): Type to be used Percentage by weight of dry aggregate (Report design quantity and minimum and maximum limits) Results of Tests on Slurry Seal Mixtures:

ISSA Test No. Description Specification ISSA TB 106 Slurry Seal Consistency 2-3 cm

ISSA TB 139 @ Wet Cohesion 30 Minutes Min (Set) ≥12 kg-cm 77 degrees F. Wet Cohesion 60 Minutes Min ≥20 kg-cm (or near spin)

ISSA TB 109 Excess Asphalt by LWT Sand Adhesion ≤50 g/sq. ft.

ISSA TB 114 Wet Stripping Pass (≥90%) ISSA TB 100 Wet-Track Abrasion loss, 1-hour Soak ≤75 grams/ sq. ft.(Report for Information Only) Wet-Track Abrasion loss, 6-hour Soak ISSA TB 113 Mix Time* Controllable to 180

Page | 40 January 2022

Seconds Minimum

*The mixing test and set time test should be done at the highest temperatures expected during construction.

The laboratory report shall include the quantitative effects of moisture content on the unit weight of the aggregate. In addition to the laboratory report, abraded and unabraded slurry test samples shall be submitted by the contractor from the Wet Track Abrasion Test.

00706.16 - Delete and Replace with the following:

Tolerances and Limits Composition of Slurry Mixture: The amount of emulsified asphalt to be blended with the aggregate shall be that as recommended by a laboratory analysis and subject to final adjustment in the field on the basis of a test section on a nearby surface off the pavement to be covered. The minimum amount of water shall be added as necessary to obtain a fluid and homogeneous mixture.

The mixture supplied to the project shall be within the following tolerances, after the design mix has been established:

Passing U.S. No. 4 and +/- 7% (1) larger sieves

Passing U.S. No. 8 to U.S. +/- 4% (1) No, 100 Sieve

Passing U.S. No. 200 +/- 4% (2) Residual Asphalt by extraction +/- 0.6% (2)

Mineral Filler +/- 1.0% (3)

1. The aggregate gradation shall always fall within the broadband specifications for Type II or Type Ill slurry.

2. The Project Manager may adjust the asphalt emulsion during construction to account for the amount of asphalt absorbed by the pavement.

3. This allowable variation is subject to the reported minimum and maximum values in the mix design.

Refer to…