5-08 - Exhibit F - 2026 Residential Chip Seal Project ST26CS (1).pdf
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- Attached to
- 2026 Residential Chip Seal Project No. ST26CS
- Solicitation number
- 26-3441
- Issued by
- Deschutes County, Oregon
About this file
This is a Technical and Supplemental Specifications document for the City of Bend's 2026 Residential Chip Seal Project (ST26CS, Solicitation No. 26-3441), detailing the construction requirements and standards for approximately 26 lane miles and 187,679 square yards of chip seal work on residential streets within Bend, Oregon. The project involves the application of High Float Rapid Set (HFRS) emulsified asphalt with 3/8-inch minus rock aggregate and a HFRS-P-1 dilute 50/50 fog seal on existing pavement surfaces. The specifications reference the 2021 Oregon Standard Specifications for Construction and establish comprehensive requirements for mobilization, temporary traffic control, erosion and sediment control, cold plane pavement removal, aggregate base preparation, and emulsified asphalt chip seal application. Key construction parameters include weather limitations (chip seal application restricted to June 15 through August 31 with pavement temperatures above 70°F and humidity below 75 percent), application rates for emulsified asphalt ranging from 0.25 to 0.70 gallons per square yard depending on aggregate size, traffic control protocols requiring minimum 72-hour advance notice for lane closures, and mandatory two-way traffic maintenance except during specified work periods (7:00 a.m. to 4:00 p.m. on designated days).
The project requires contractors to furnish equipment including calibrated asphalt distributors, self-propelled chip spreaders with aggregate segregators, pneumatic-tired and steel-wheeled rollers, and power brooms, with all work subject to daily inspection and documentation of cold plane removal quantities. Material specifications include HFRS-2 or HFRS-P1 polymer-modified emulsified asphalt meeting ODOT standards, aggregates with minimum 90-pound-per-cubic-foot unit weight and specific gradation requirements, and quality control testing performed by certified aggregate technicians. Contractors must submit traffic control plans five calendar days before the preconstruction conference, provide erosion and sediment control management with 90-minute storm event response capability, and comply with wet season work restrictions (October 1 through June 30) and soil exposure stabilization timelines. Payment is calculated on a unit price basis with aggregate and asphalt measured by weight and chip seal approaches paid per each street connection; no additional compensation is provided for surface preparation, material placement, or post-application brooming activities.
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2026 Residential Chip Seal Project City Project No. ST26CS
Solicitation No. 26-3441
Exhibit F
Technical and Supplemental Specifications
City of Bend 710 NW Wall Street, Bend, Oregon 97703
Table of Contents
PART 00200 – TEMPORARY FEATURES AND APPURTENANCE
Section 00210 - Mobilization
Section 00220 - Accommodations for Public Traffic
Section 00221 - Common Provisions for Work Zone Traffic Control
Section 00222 – Temporary Traffic Control Signs
Section 00223 - Work Zone Traffic Control Labor and Vehicles
Section 00224 - Temporary Traffic Channelizing Devices
Section 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 00600 – BASES
Section 00620 - Cold Plane Pavement Removal
Section 00640 - Aggregate Base and Shoulders
PART 00700 – WEARING SURFACES
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
EXHIBIT A
Special Provisions for the Technical Specifications for the 2021 Oregon Standard Specifications for the Construction (OSS) – Technical Specifications
PART 00200 – TEMPORARY FEATURES AND APPURTENANCE
Section 00210 - Mobilization
Comply with Section 00210 of the Standard Specifications.
End of Section
Special Provisions to the 2021 OSS Section 00210 - Mobilization
EXHIBIT B 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
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…”
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 –
• 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:
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 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.
Add the following subsection:
Section 00221 - Common Provisions for Work Zone Traffic Control
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 _20__ 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
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 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.
(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.
• 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:
(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.
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
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.
00222.40(e) Temporary Sign Placement - Add the following to the end of the bullet list:
Section 00223 - Work Zone Traffic Control Labor and Vehicles
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
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
Section 00226 - Temporary Roadside Barriers and Impact Attenuators
Comply with Section 00226 of the Standard Specifications.
Section 00228 - Temporary Pedestrian and Bicyclist Routing
Section 00228 - Temporary Pedestrian and Bicyclist Routing
Comply with Section 00228 of the Standard Specifications modified as follows:
Section 00231 - Temporary Access Road
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
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:
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
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
Section 00620 - Cold Plane Pavement Removal
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
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.
PART 00700 – WEARING SURFACES
Section 00705 - Emulsified Asphalt Prime Coat and Emulsified Asphalt Fog Coat Description, HFRS-P2 for chip rock and HFRS-P-1 50% dilute for fog seal
00705.00 Scope - This Work consists of applying asphalt, with or without Aggregate cover materials, to a prepared surface. The prime coat referred to in these Specifications is a penetration treatment to Aggregate surfaces to coat and bind the material into a hard surface. The fog coat referred to in these Specifications is a treatment applied to existing asphalt concrete Pavement surfaces to renew and seal the Pavement surface.
Materials
00705.10 Aggregate Cover Material - When required by the Special Provisions, furnish Aggregate cover material consisting of crushed or uncrushed Rock free of Clay, loam or other harmful substances and meeting the following gradation. Sieve analysis will be determined according to AASHTO T 27.
Sieve analysis may be waived and the Aggregate cover material accepted visually if allowed by the Engineer.
Fine Cover Coarse Cover Percent Passing Percent Passing Sieve Size (by Weight) Sieve Size (by Weight) 3/8" 100 1" 100 1/4" 90 - 100 3/4" 90 - 100 No. 8 30 - 66 3/8" 55 - 75 No. 30 8 - 28 1/4" 40 - 60 No. 100 0 - 5 No. 8 *
* Of the fraction passing the 1/4 inch sieve, 40 to 60 percent shall pass the No. 8 sieve.
00705.11 Emulsified Asphalt - Furnish asphalt meeting the following requirements:
(a) General – Provide HFRS P-2 Emulsified Asphalt conforming to the requirement of ODOT's publication,Standard Specifications for Asphalt Materials. Copies of the publication are available from the ODOT Pavement Services Engineer. The applicable specifications are those contained in the current publication on the date the Project is advertised. The materials may be conditionally accepted at the source or point of loading for transport to the Project.
Obtain samples of Emulsified Asphalt according to AASHTO T 40, prior to dilution with water, at the frequency in the MFTP. Samples will be tested at the ODOT Materials Laboratory, or other laboratory as designated by the Agency, within 30 Calendar Days from the Day the sample was taken.
(b) Prime Coat - Provide CSS-1, CSS-1h, or CMS-2S Emulsified Asphalt for the prime coat.
(c) Fog Coat - HFRS-P-1 50% Dilute Emulsified Asphalt for the fog coat.
For every part Emulsified Asphalt, add not more than one part water. Add water at point of supply or point of application as directed, and mix with Emulsified Asphalt. The exact proportion of added water will be determined in a manner acceptable to the Engineer.
50/50 Dilute / Oil, 2 directions 2 lighter applications .09-.15 each application with #1-2 nozzle Test strip for verification for proper us of nozzles
Equipment
00705.20 Equipment - Provide a pressure distributor, hauling vehicles, and other necessary Equipment to ensure efficient operation and construction to meet specified results. Provide Equipment in such number and capacities as will provide coordinated and uniform progress of the Work.
00705.21 Asphalt Distributor - Provide an asphalt distributor designed, equipped, maintained, and operated so the Emulsified Asphalt material is applied uniformly at even heat. The distributor shall be capable of applying the asphalt on variable surface widths up to 16 feet, at readily determined and controlled rates from 0.05 to 2.0 gallons per square yard, and with uniform pressure. The variation allowed from any specified rate shall not exceed 0.02 gallons per square yard. Provide distributor Equipment that includes a tachometer, pressure gauges, accurate volume measuring devices and a thermometer for measuring temperature of tank contents. Provide distributors equipped with a positive power unit for the asphalt pump, and full circulation spray bars adjustable both laterally and vertically. Set the bar height for triple lap coverage. Trucks shall be calibrate daily with inspector or project enigneer, Truck will be able to provide shot rate to determine
00705.22 Aggregate Spreaders - When Aggregate cover material is required, provide a mechanical spreading device that will spread the Aggregate cover material in a manner acceptable to the Engineer. Calibrate spreader daily. The Contactor will work with the agency and provide calibration and shoot rate
00705.23 Power Brooms - When Aggregate cover material is required, provide pickup or non-pickup type power brooms equipped with a positive means to control vertical pressure.
Construction
00705.40 Season and Weather Limitations - Do not place the prime coat or fog coat when the air temperature is below 60 °F, or when the Engineer determines that weather or surface conditions are detrimental to proper construction.
00705.41 Preparation of Underlying Surfaces - Prepare underlying surfaces according to the following:
(a) Prime Coats - Bring Aggregate bases and other bases or foundations, when constructed under the Contract, to the completed and finished condition according to the applicable Specifications. Bring existing bases and foundations, constructed by others, to the applicable condition according to Section 00610, and within 0.04 foot of established grade and Cross Section.
(b) Fog Coats - Apply the fog coat to a clean and dry surface. Clean and remove all loose material by sweeping or other approved methods.
00705.42 Sequence of Operations - Construct the prime coat or fog coat with a single spread of asphalt followed immediately with a single spread of Aggregate cover material, if required.
00705.43 Application of Asphalt - Apply asphalt according to the following:
(a) Prime Coats - Apply asphalt at a uniform rate, normally within a range of 0.20 to 0.75 gallons per square yard of surface. The exact rate of application will be determined by the Engineer.
(b) Fog Coats - Apply the diluted Emulsified Asphalt within the range of 0.10 to 0.15 gallons per square yard. The exact rate of application will be determined by the Engineer Discontinue application of the Emulsified Asphalt fog coat sufficiently early in the Day to permit the termination of traffic control prior to sunset. Apply Emulsified Asphalt to only one designated Traffic Lane at a time.
00705.44 Spreading Aggregate Cover Material - When Aggregate cover material is required, spread the Aggregate cover material within the range of 0.004 to 0.013 cubic yards per square yard as directed.
Maintenance
00705.60 Curing, Maintaining and Opening Prime Coats to Traffic - Cure the prime coat for a minimum of 3 Calendar Days after construction, as directed, before a succeeding Course is placed upon it. If directed, traffic may be allowed to travel over the prime coat at any time after its construction. During the curing period, when in use by traffic and until it is covered by a succeeding Course, maintain the prime coat to the specified shape and condition, as directed.
00705.61 Power Brooming Fog Coats - Following the applications of all Aggregate cover material, carefully broom the entire surface unless brooming damages the fog coat, to remove loose Aggregate that could damage vehicles. Use a minimum of two power brooms.
Subsequent brooming the following 2 days may be directed by the Engineer to ensure that the surface is free of loose Aggregate that could cause vehicle damage. In curbed areas, use a pickup type power broom. On Bridges, sidewalks and other areas off the roadway, remove all extraneous Aggregates to the satisfaction of the Engineer.
Measurement
00705.80 Measurement - The quantities of Emulsified Asphalt will be measured on the weight basis. The quantities of Aggregate cover Material will be measured on the weight basis or on the volume basis in the hauling vehicle.
Payment
00705.90 Payment - The accepted quantities of Work performed under this Section will be paid for at the Contract unit price, per unit of measurement, for the following items:
Pay Item Unit of Measurement
(a) Emulsified Asphalt in Prime Coat ........................................................... Ton
(b) Emulsified Asphalt in Fog Coat .............................................................. Ton
(c) Aggregate Cover Material .......................................................... Ton or Cubic Yard
Item (b) includes water required to dilute the Emulsified Asphalt, according to 00705.11(c).
Payment will be payment in full for furnishing and placing all Materials, and for furnishing all Equipment, labor, and Incidentals necessary to complete the Work as specified.
No separate or additional payment will be made for materials used during the maintenance period.
Section 00710 - Single Application Emulsified Asphalt Chip Seal Description
00710.00 Scope - This Work consists of applying HFRS Emulsified Asphalt and graded Aggregates as shown or directed. The chip seal design will be designated on the Plans or in the Special Provisions.
Materials
00710.10 Aggregates - Furnish Aggregates meeting the following requirements:
(a) Size Designation - Provide the size of Aggregate for the single application Emulsified Asphalt chip seal design designated in the Plans or Special Provisions according to the following:
Chip Seal Design Size of Screenings Fine 3/8" - No. 8 Single Size Medium 3/8" - 1/4" Graded Medium 3/8" - No. 4 Coarse 1/2" - 1/4"
(b) Fractured Faces - Provide Aggregates consisting of broken stone, crushed gravel or a combination of both. Crush Aggregate such that at least 90 percent 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.
(c) Grading - Perform sieve analysis according to AASHTO T 27 and AASHTO T 11. Provide grading for the designated single application Emulsified Asphalt chip seal design according to the following:
Sieve Coarse Single Size Medium Graded Medium Fine Size 1/2" - 1/4" 3/8" - 1/4" 3/8" - No. 4 3/8" - No. 8 Percent Passing (by Weight) 3/4" 100 1/2" 85 - 100 100 100 3/8" − 85 - 100 80 - 100 100 1/4" 0 - 15 0 - 15 10 - 40 − No. 4 − − − 45 - 65 No. 8 0 - 4 − 0 - 6 0 - 10 No. 30 − 0 - 2 0 - 2 − No. 200 (wet) 0.0 - 2.0 0.0 - 2.0 0.0 - 2.0 0.0 - 2.0 No. 200 (wet) * 0.0 - 1.0 0.0 - 1.0 0.0 - 1.0 0.0 - 1.0
* in gravels
(d) Unit Weight of Aggregate - Provide Aggregate with a minimum unit weight of 90 pounds per cubic foot according to AASHTO T 19.
(e) Soundness - Provide coarse and fine Aggregate with a weighted loss not exceeding 12 percent when subjected to five cycles of the soundness test using sodium sulfate solution according to AASHTO T 104.00710.11
(f) Durability - Provide Aggregates meeting the following durability requirements:
Test Method Maximum Test ODOT AASHTO Values Abrasion T 96 30.0% Degradation (coarse Aggregate) Passing No. 20 Sieve TM 208 30.0% Sediment Height TM 208 3.0"
(g) Harmful Substances - Provide Aggregates meeting the following harmful substances requirements:
Test Method Test ODOT AASHTO Limits Lightweight Pieces T 113 1.0% maximum Wood Particles TM 225 0.1% maximum Elongated Pieces (coarse Aggregate at a ratio of 5:1) TM 229 10.0% maximum Cleanness Value TM 227 75 minimum
(h) Taking Aggregates from Agency Stockpiles - When it is specified that Aggregates are to be taken from Agency-controlled stockpiles, take the material in an orderly manner. Do not contaminate the materials. Salvage all material possible from the area which the material is taken. Shape unused portions of a stockpile to Neat Lines. The Contractor will be charged for materials wasted through negligence or used without authority.
(i) Stockpiling Contractor Furnished Aggregates on Agency Property - Aggregates may be temporarily stockpiled at approved sites on Agency property provided the areas used are as small as practicable. Restore the site to its original condition after the materials have been removed. Any contamination during storage or from reloading operations will be cause for rejection.
00710.11 Emulsified Asphalt - Furnish polymer-modified Emulsified Asphalt or non-polymer-modified Emulsified Asphalt as specified for the single application Emulsified Asphalt chip seal design designated in the Plans or Special Provisions. When non-polymer-modified Emulsified Asphalt is designated, the Contractor may elect to substitute a polymer-modified Emulsified Asphalt, however, selection of the polymer-modified Emulsified Asphalt will not be cause for additional compensation.
(a) Non-Polymer-Modified Emulsified Asphalt - When non-polymer-modified Emulsified
Asphalt is specified, use HFRS-2 Emulsified Asphalt as the Contractor elects.
(b) Polymer-Modified Emulsified Asphalt - When polymer-modified Emulsified Asphalt is specified, use HFRS-P1 as the Contractor elects.
(c) Acceptance of Emulsified Asphalt - Provide Emulsified Asphalt conforming to the requirements of ODOT's publication, Standard Specifications for Asphalt Materials. Copies of the publication are available from the ODOT Pavement Services Engineer. The applicable Specifications are those contained in the current publication on the date the Project is advertised. The materials may be conditionally accepted at the source or point of loading for transport to the Project. Excessive delay in the use of the Emulsified Asphalt or excessive pumping of the Emulsified Asphalt may significantly reduce the viscosity and may make the material unsuitable for chip seal 00710.15 702 use. For this reason limit pumping between the bulk storage tank, hauling transportation, field storage tanks and distributor to an absolute minimum to maintain proper viscosity. Final acceptance of Emulsified Asphalt will be at the point of application. Obtain samples of Emulsified Asphalt according to AASHTO T 40 at the frequency in the MFTP.
Samples will be tested at the ODOT Materials Laboratory, or other laboratory as designated by the Agency. Non-polymer-modified Emulsified Asphalt will be tested within 30 Calendar Days from the date it is sampled. Polymer-modified Emulsified Asphalt will be tested within 14 Calendar Days from the date it is sampled.
00710.15 Aggregate Production Quality Control - Provide quality control during production of Aggregate according to Section 00165. Sampling and Testing shall be performed by a CAgT at the minimum frequency schedule in the MFTP.
(a) Quality Control Compliance - Evaluate Aggregates for compliance according to the following:
(1) Gradation - Analyze gradation statistically according to Section 00165. A stockpile contains specification Aggregate when the Pay Factor (PF) for each sieve size calculated according to
00165.40 is equal to or greater than 1.00. Each required sample represents a sublot.
When the results from Table 00165-2 yield a Pay Factor of less than 1.00 for any sieve size, the material is non-specification. The Engineer will reject any stockpile of Aggregate containing non-specification material unless the non-specification material is removed from the stockpile.
Do not add additional material to such a stockpile until enough non-specification material is removed so that the PF for each sieve size is equal to or greater than 1.00.
(2) Other Tests - Stop production, make appropriate operational adjustments, and remove all failing material from the stockpile whenever a quality control test result, other than sieve analysis, does not meet Specifications. Document operational adjustments made and notify the Engineer prior to resuming production.
(3) Preproduced Aggregate - Compliance of Aggregates produced and stockpiled before the Award of this Contract will be determined by either of the following:
• Continuing production records meeting the requirements of 00710.10 and 00710.15.
• Sampling according to AASHTO R 90 and testing the entire stockpile at the minimum frequency schedule in the MFTP. The material shall meet the requirements of 00710.10 and 00710.15.
(b) Materials on Hand - Payment for stockpiled materials on hand may be allowed as described in 00195.60 subject to meeting the requirements of 00710.10 and 00710.15.
00710.16 Acceptance of Aggregate - The Contractors quality control tests will be used for acceptance of Aggregates if verified by the Agency's quality assurance program. The Agency will perform Aggregate production quality assurance according to the following:
(a) ODOT Administered Projects - Quality assurance testing on ODOT administered projects will be performed according to Section 00165, the MFTP and the ODOT Quality Assurance Program.
(b) Projects Administered by Other Agencies - The quantity of quality assurance testing on projects administered by other Agencies will be at the discretion of the Agency or as designated in the Special Provisions. 00710.40 703
Equipment
00710.20 Equipment - Provide a pressure distributor, hauling vehicles, chip spreader, compactors, power brooms and other necessary Equipment to ensure efficient operation and construction to meet specified results. Provide Equipment in sufficient number and capacities that will provide coordinated and uniform progress of the Work.
Provide two-way radio communication between the asphalt distributor and chip spreader.
00710.21 Asphalt Distributor - Provide an asphalt distributor designed, equipped, maintained and operated so the Emulsified Asphalt material may be applied uniformly at even heat. The distributor shall be capable of applying the asphalt on variable surface widths up to 16 feet, at readily determined and controlled rates from 0.05 - 2.0 gallons per square yard, and with uniform pressure. The variation allowed from any specified rate shall not exceed 0.02 gallons per square yard. Provide distributor Equipment that includes a tachometer, pressure gauges, accurate volume measuring devices and a thermometer for measuring temperature of tank contents. Provide distributors equipped with a positive power unit for the asphalt pump, and full circulation spray bars adjustable both laterally and vertically. Set the bar height for triple lap coverage.
00710.22 Chip Spreaders - Provide self-propelled chip spreaders equipped with a mechanical device that will spread the Aggregate at a uniform rate across the full width of the chip spreaders. Provide chip spreaders equipped with an Aggregate segregator assembly. Chip spreaders without an Aggregate segregator assembly may be allowed if approved by the Engineer. Provide chip spreaders of adequate width to provide full coverage of the specified Panel and without placing joints in the travel lanes.
00710.23 Compactors - Provide self-propelled pneumatic-tired or steel-wheeled rollers in good condition and capable of operating at speeds compatible with the chip seal operation. A minimum of two pneumatic-tired rollers and one steel-wheeled roller is required.
(a) Pneumatic-tired Rollers – Provide (3) self-propelled, tandem or multiple axle, multiple wheel type pneumatic-tired rollers with smooth-tread pneumatic tires of equal size. The tires shall be staggered on the axles at such spacings and overlaps that will provide uniform compacting pressure for the full compacting width of the roller. The minimum load per tire shall be 2,800 pounds, with tire inflation pressures of 45 psi to 90 psi.
(b) Steel-wheeled Rollers - Provide (1) steel-wheeled (Double Drum) rollers with a gross static weight of at least 8 tons.
00710.24 Power Brooms – Provide (2) minium pickup or and (1) non-pickup type power brooms equipped with a positive means to control vertical pressure.
Labor
00710.30 Quality Control Personnel - Provide a technician having a CAgT technical certification.
Construction
00710.40 Season and Weather Limitations - Do not apply Emulsified Asphalt when the Pavement temperature is below 70 °F, or if the humidity is higher than 75 percent. Complete the application of the Emulsified Asphalt and the Aggregate 3 hours before sunset. Remove by milling, or other methods approved by the Engineer, and replace all chip seals damaged by weather during the first 24 hours after application at no additional cost to the Agency. The placing of single application Emulsified Asphalt chip seal will not be allowed before June 15 or after August 31. 00710.41 704
00710.41 Rate of Progress and Scheduling - Do not apply more chip seal in any 1 Day than can be broomed the following morning, unless approved by the Engineer. Provide a traffic control plan for approval by the Engineer if operations exceed 3 centerline miles or 6 lane miles per Day.
00710.42 Preparation of Underlying Surfaces - Immediately before applying the Emulsified Asphalt, clean and dry the surface to be treated in a manner…
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