ATT A Special Provisions and Specifications~34.pdf

ATTACHMENT A

SPECIAL PROVISONS & SPECIFICATIONS FOR

OR138W AT MP 16.47A & 15.65A MARVIN HILL CULVERT REPAIR PROJECT

SCOPE OF WORK

The Work to be done under this Contract consists of supplying the materials, equipment, labor, and incidentals to perform the following:

1) Furnish, install, and maintain temporary work zone traffic control.

2) Furnish, install, and maintain erosion and sediment control measures.

3) Furnish, install, and maintain temporary water management facilities.

4) Remove existing culvert pipes.

5) Furnish and install culvert pipes.

6) Construct inlets.

7) Construct concrete curbs.

8) Fill abandoned culvert pipes.

9) Construct stone embankment material (SEM) rock buttress and loose riprap.

10) Construct aggregate base and shoulders.

11) Furnish and install asphalt concrete pavement (ACP).

12) Furnish and install drainage facility identification markers.

13) Furnish and install permanent traffic control guidance systems

14) Complete application of topsoil and permanent seeding.

15) Perform additional and incidental work as noted in the Contract plans and specifications and as directed.

PROJECT INFORMATION

General information pertaining to this project may be obtained from the following Project Manager or approved representative:

Blake Howren, District Operations Coordinator Email: Blake.W.Howren@odot.oregon.gov

APPLICABLE STANDARD SPECIFICATIONS AND SPECIAL PROVISIONS

2024 OREGON STANDARD SPECIFICATIONS FOR CONSTRUCTION: The 2024 Oregon Standard Specifications for Construction (Standard Specifications) include detailed technical specifications in Parts 00200 through 03000 inclusive (Technical Specifications) that apply to this ITB and the resulting Contract.

Some sections of the Technical Specifications are identified and modified herein, Specifications. Sections of the Technical Specifications not modified remain applicable to the Contract according to their original terms. Unless they are identified herein, Specifications, sections of the Standard Specifications in Part 00100 (General Conditions) are not applicable to this Contract. Bidders can also access this information at the following Internet address:

2024 OREGON STANDARD SPECIFICATIONS FOR CONSTRUCTION

mailto:Blake.W.Howren@ODOT.Oregon.gov http://www.oregon.gov/ODOT/HWY/SPECS/Pages/standard_specifications.aspx http://www.oregon.gov/ODOT/HWY/SPECS/Pages/standard_specifications.aspx

Obligations to Adjacent Landowners: The Contractor shall fulfill the following obligations to the adjacent property owner located at 8258 State Highway OR138W (T:24, R:06W, S:29, Lot 00700):

• Driveway access to the property will be maintained throughout construction.

• Owner’s property disturbed during construction activities shall be returned to pre-work conditions to the satisfaction of the property owner, including but not limited to the following:

o Driveway re-graded and compacted (may require addition of supplemental aggregate base).

o Disturbed soils re-graded and compacted and permanent seeding and mulching applied for erosion control.

o Fences and gates removed to facilitate access shall be reinstalled.

• Garbage service shall be maintained throughout construction activities.

• 30 yards of fill material selected from the slide by the property owner shall be delivered, stockpiled, graded and compacted at location(s) on the property determined by and to the satisfaction of the property owner.

• 30 yards of commercial aggregate base shall be delivered, stockpiled, graded and compacted at location(s) on the property determined by and to the satisfaction of the property owner.

• Supply 3 sections (20’ sections, 60’ total) of 30” dual wall N-12 ADS pipe, or approved equal, from the ODOT QPL. The pipe shall be in new or like new condition. Stockpile the pipe on the property at a location(s) determined by and to the satisfaction of the property owner.

• Remove and dispose of the existing concrete driveway inlet near Sta. “C2” 204+00, Rt. and construct a new Type G-2 concrete inlet. Connect the inlet to the existing driveway culvert and construct approximately 10’ of concrete drainage curb around the inlet to capture sheeting surface water.

• Trees removed from the owner’s property as part of the project shall be stockpiled at location(s) on the property determined by and to the satisfaction of the property owner.

• Approximately 100’ (subject to field-verification) of access control fencing damaged by the slide shall be re-established on the property with new fencing to the property owner’s satisfaction.

Silence of Specifications: The apparent silence of the specifications as to any detail, or the apparent omission of a detailed description concerning any point, shall be regarded as meaning that the highest value commercial practices are to prevail and that only materials and workmanship of first quality are to be used.

Where neither the Special Provisions nor the bid schedule indicate separate payment for the work to be completed under this Contract, perform the work as incidental for which no separate measurement or payment will be made.

SECTION 00210 - MOBILIZATION

Comply with Section 00210 of the Standard Specifications.

SECTION 00220 - ACCOMMODATIONS FOR PUBLIC TRAFFIC

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

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

Traffic Lanes may be closed on the Elkton-Southerlin Highway (OR138W) when allowed, shown, or directed during the following periods of time except as specified in 00220.40(e)(2):

Single Lane Closures – One Traffic Lane on the Elkton-Southerlin (OR138W) may be closed during the following times:

At all times.

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 - Replace this subsection with the following subsection:

00221.06 Traffic Control Plan and Tourist-Oriented Directional and Business Logo Signs –

(a) Traffic Control Plan - Submit one of the following, 5 Calendar Days before the preconstruction conference:

(1) Agency Traffic Control Plan - If the Contractor intends to use the Agency TCP without modification, a written notification indicating that the Agency TCP will be used without modification.

(2) Contractor-Modified Traffic Control Plan - The Contractor may request to use a Contractor-modified Agency TCP, or a TCP developed by the Contractor. Do not use a modified TCP, or a TCP developed by the Contractor, unless approved by the Engineer. Use the Agency TCP unless a modified TCP, or a TCP developed by the Contractor is accepted.

The Engineer is not obligated to consider any modified Agency TCP or a TCP developed by the Contractor. The Agency will not be liable to the Contractor for failure to accept or act upon any request for a modified Agency TCP or a TCP developed by the Contractor.

To conserve time and funds, the Contractor may first submit a written request for a preliminary review by the Engineer. The request should contain a description of the proposal together with a rough estimate of anticipated dollar and time impacts. The Engineer will, within a reasonable time, respond to the Contractor in writing whether or not the request would be considered by the Agency.

If requesting a Contractor-modified Agency TCP, or a TCP developed by the Contractor, at a minimum the request shall meet all requirements of the Contract documents and comply with the Project transportation management plan (TMP). Provide the following information:

• Stamped Working Drawings according to 00150.35 that include the proposed TCP showing all TCM and quantities of TCD.

• A TPAR plan that includes:

• Details and features used to provide pedestrian accessibility.

• Pedestrian staging Plans at a scale no smaller than 1 inch = 50 feet.

• Temporary alternate facilities or detour routes for pedestrian traffic.

• Staging sequences and details for Work affecting vehicular, pedestrian, and bicycle traffic.

• Proposed order and duration of the TCM.

• A detailed temporary striping plan.

If the Contractor’s request to use a Contractor-modified Agency TCP, or a TCP developed by the Contractor is approved in whole or in part, acceptance will be made by a Change Order.

The Engineer will establish prices that represent a fair measure of the value of Work to be added, changed, or deleted as a result of any accepted modifications to the Agency TCP or an accepted TCP developed by the Contractor.

Once a TCP has been accepted by the Engineer, any additional modifications must be submitted by the Contractor for Agency review following the procedure described above. The Engineer is not obligated to consider additional modifications to a previously approved TCP.

(b) Tourist-Oriented Directional and Business Logo Signs - Submit one of the following for approval, at least 5 Calendar Days before the preconstruction conference:

(1) No Signs - If there are no tourist-oriented directional (TOD) or business logo signs on the Project, a written notification that no TOD or business logo signs exist within the Project limits or

(2) Signs - Submit one copy of a sketch map of the Project showing all existing TOD and business logo signs and a written narrative describing how these signs will be kept in service and protected throughout all the construction stages. If modifications are necessary, submit updated information to the Engineer for approval at least 21 Calendar Days before the change is needed.

00221.90(b) Temporary Protection and Direction of Traffic – Replace the bullet that begins “Providing, Surfacing, maintain…” with the following bullet:

• Providing, surfacing, maintaining, removing, and restoring the TPAR.

SECTION 00222 – TEMPORARY TRAFFIC CONTROL SIGNS

Comply with Section 00222 of the Standard Specifications.

• Install a "24 HR FLAGGING AHEAD" (CW20-9) sign in each direction approximately 250 feet prior to the "BE PREPARED TO STOP" sign. Remove the temporary signs when 24-hour flagging is no longer required, or as directed.

SECTION 00223 - WORK ZONE TRAFFIC CONTROL LABOR AND VEHICLES

Comply with Section 00223 of the Standard Specifications.

SECTION 00224 - TEMPORARY TRAFFIC CHANNELIZING DEVICES

Comply with Section 00224 of the Standard Specifications.

SECTION 00226 - TEMPORARY ROADSIDE BARRIERS AND IMPACT ATTENUATORS

Comply with Section 00226 of the Standard Specifications modified as follows:

Replace the paragraph that begins “When workers or construction Equipment…” with the following paragraph:

If a Contractor elects to use a truck mounted impact attenuator (TMA) when not required, place the TMA in advance of the exposed workers or Equipment, located as shown in the TMA Support Vehicle Placement tables, or as directed.

00226.80(b)(2) Temporary Barrier - Add the following to the end this subsection:

The quantities will be limited to those shown in Table 00226-1. The estimated quantity of Temporary Barrier is:

TABLE 00226-1

Stage/Phase Location (STA to STA)

Temporary Barrier (foot)

Temporary Barrier, Minimum Deflection

(foot) MP 16.47A 20+55 to

204+10

Total Quantity 355

SECTION 00228 - TEMPORARY PEDESTRIAN AND BICYCLIST ROUTING

Comply with Section 00228 of the Standard Specifications.

SECTION 00245 - TEMPORARY WATER MANAGEMENT

Section 00245, which is not a Standard Specification, is included in this Project by Special Provision.

Description

00245.00 Scope - This Work consists of furnishing, installing, operating, maintaining, and removing temporary water management facilities in regulated Work areas.

00245.01 Abbreviations:

TWM - Temporary Water Management TWMF - Temporary Water Management Facility TWMP - Temporary Water Management Plan

00245.02 Definitions:

Temporary Water Management Facility - A TWMF that conveys water around or through Work areas, removes water from Work areas, and treats and discharges water at locations outside Work areas.

Materials

Pipe ...................................................................... 00445.11 Plastic Sheeting ............................................... 00280.14(a) Sandbags ......................................................... 00280.15(a)

Furnish pumps that are:

• Self-priming.

• Equipped with a variable speed governor.

• Equipped with a power source.

• Able to pump water that contains soft and hard solid.

Finishing and Cleaning Up

00245.70 Removal - Prior to removal of the TWMF, obtain approval from the Engineer after completion of all Work within ordinary high water limits. Remove the TWMF and re-water and restore the stream flow.

Maintain downstream water flow during removal of the facility. Staged or metered re-watering may be required and will be determined by the Engineer.

Measurement

00245.80 Measurement - No measurement of quantities will be made for temporary water management facilities.

The estimated quantities of Materials required for the temporary water management facility are:

Temporary Water Management Facility at Station “C!” 101+00:

Pipe ......................................................................... 85 Feet Plastic Sheeting ........................................... 3 Square Yard Sandbags ........................................................... _100 Each

Temporary Water Management Facility at Station “C2” 203+15:

Pipe ...................................................................... 130 Feet Plastic Sheeting ........................................... 3 Square Yard Sandbags .......................................................... _100 Each

Payment

00245.90 Payment - The accepted quantities of temporary water management facilities will be paid for at the Contract lump sum amount for the item "Temporary Water Management Facility at Station “C1” 101+00 and “C2” 203+15".

SECTION 00280 - EROSION AND SEDIMENT CONTROL

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

00280.00 Scope - Replace the paragraph that begins "This Work also consists of providing temporary …" with the following paragraph:

This Work also consists of providing temporary erosion and sediment control (ESC) measures and furnishing, installing, moving, operating, maintaining, inspecting, and removing ESC throughout the Project area according to the Standard Drawings, the erosion and sediment control plan (ESCP), the Specifications, or as directed, until the site is permanently stabilized. Included also is the monitoring of weather, of stormwater and receiving waters, the reporting of monitoring observations, the reporting of corrective actions (when necessary) and the updates and revisions of the ESCP, including ESCP cover sheet, necessary to keep it representative of current site conditions and compliant with the NPDES 1200-CA, 1200-CN, OR 1200-C permit if applicable.

Delete the paragraph that begins “When contaminants, pollutants or hazardous materials…”.

Add the following paragraph to the end of this subsection:

The Agency’s NPDES 1200-CA permit is not applicable to this Project. Comply with all applicable conditions of this Section.

00280.02 Definitions - Delete the definition Wet Season Work

00280.04 Erosion and Sediment Control Plan on Agency Controlled Lands - Replace the bullet that begins “Information required under 1200-CA…” with the following bullet:

• Information required under 1200-CA permit, if applicable.

00280.06 Erosion and Sediment Control Manager - Delete this subsection.

00280.48 Emergency Materials - Add the following paragraphs after the paragraph that begins "Provide, stockpile, and protect...":

Provide and stockpile the following emergency Materials on the Project Site:

Item Quantity

Sediment Barrier , Type 3 .................................... 100 Feet

When emergency materials are used, restock emergency materials within 48 hours of use.

00280.62 Inspecting and Monitoring – Delete the paragraph that begins “Inspect the Project Site…”.

00280.62(a) Inspection - Replace the paragraph that begins "Perform site inspection, complete…" with the following paragraph:

Inspect the Project Site and all ESC devices for Effective Function and potential erosion or sediment movement and complete all applicable parts of the ODOT Erosion Control Monitoring Form, and submit the form to the Agency as follows:

00280.62(b) Rainfall – Add the following to the end of this subsection:

The closest on-line rain gauge is located at: NOAA National Weather Service

00280.91 Payment – Replace the paragraph that begins “Emergency Materials that are incorporated…” with the following paragraph:

Materials listed in 00280.48 that are incorporated into the Project will be paid for under the appropriate items listed in the Contract Schedule of Items.

SECTION 00290 - ENVIRONMENTAL PROTECTION

Add the following subsection:

00290.30(a)(7) Water Quality:

• Do not discharge water contaminated by pollutants including sediment, drilling fluids and waste, concrete, grout, or water contained within a work area isolation, into any waters of the State or U.S.

or conveyances draining thereto until it has been treated using Materials such as those listed in

00280.15 or 00280.16 or by pumping to a vegetated upland location. Do not allow Project discharges to increase the concentration of any pollutant in the receiving water to a level that exceeds the limits prescribed by OAR 340-041.

• Implement containment measures adequate to prevent pollutants from entering waters of the State or U.S. Such pollutants include but are not limited to construction and demolition materials, waste spoils, fuel or petroleum products, detergents, silt, welding slag and grindings, concrete sawcutting by-products and sandblasting abrasives.

• Do not allow curing concrete or grout to be submerged within waters of the State or U.S. less than 24 hours after placement, except within work area isolation. Do not end-dump riprap into the waters of the State or U.S. Place riprap from above the ordinary high water line.

• Monitor weather and streamflow forecasts and conditions to anticipate high flows that may unintentionally inundate any portion of the Project Site.

• If high flow conditions occur or are anticipated to occur that may unintentionally inundate any portion of the Project Site, remove all potentially affected Equipment, Materials, and debris from the potential inundation area. Cease Work in the area until water recedes and the risk of further high water events https://forecast.weather.gov/MapClick.php?lat=XX.XXXX&lon=-XXX.XXXX&unit=0&lg=english&FcstType=graphical passes. The Engineer retains the authority to temporarily halt or modify the Work in case of excessive turbidity or damage to natural resources.

• If Work in or around waters of the State or U.S. violate permit conditions or any requirement of this subsection, stop such Work and notify the Engineer.

00290.34 Protection of Fish and Fish Habitat - Add the following paragraph:

Meet with the Agency Biologist, Resource Representative, Engineer, and inspector on site, before moving equipment on-site or beginning any work, to ensure that all parties understand the locations of sensitive biological sites and the measures that are required to be taken to protect them.

00290.34(a) Regulated Work Areas - Add the following to the end of this subsection:

The regulated work area is defined as the area at or below the ordinary high water (OHW) elevation. The Engineer will identify and mark the regulated work area.

Perform work within the regulated work area only during the in-water work period. The in-water work period is from July 1 to September 15.

Submit a schedule to complete all work within the regulated work area within the in-water work period at least 10 Days prior to the preconstruction conference.

00290.34(c) Aquatic Species Protection Measures Required by Environmental Permits:

(1) General Requirements:

Use heavy equipment as follows:

• Secure absorbent material around all stationary power equipment (for example: generators, cranes, drilling equipment) operated within 150 feet of wetlands, waters of the State, waters of the U. S., drainage ditches, or water quality facilities to prevent leaks, unless suitable containment is provided to prevent spills from entering waters of the State or waters of the U.S.

• Do not cross directly through a stream for construction access, unless shown or approved. If shown or approved, cross perpendicular to the stream and do not block stream flow. When a crossing is no longer needed, completely remove the crossing and restore the soils and vegetation to the original condition.

• Store fuel and maintain all equipment in staging areas that are at least 150 feet away from any waters of the State, waters of the U.S., or storm inlet or on an impervious surface that is isolated from any waters of the State, waters of the U.S., or storm inlet.

(2) Work Area Isolation - Provide work isolation according to Section 00245. Provide safe passage around or through the isolated work area for adult and juvenile migratory fish unless passage did not previously exist.

(3) Water Intake Screening - Install, operate, and maintain fish screens on each water intake used for project construction, including pumps used to isolate an in-water work area. When drawing or pumping water from any stream, protect fish by equipping intakes with screens having a minimum 27 percent open area and meeting the following requirements:

• Perforated plate openings shall be 3/32 inch or smaller.

• Mesh or woven wire screen openings shall be 3/32 inch or smaller in the narrowest direction.

• Profile bar screen or wedge wire openings shall be 1/16 inch or smaller in the narrow direction.

Choose size and position of screens to meet the following criteria in Table 00290-1:

Table 00290-1

Type Approach Velocity 1 (Ft./Sec.)

Sweeping Velocity 2 (Ft./Sec.)

Wetted Area of Screen (Sq. Ft.)

Comments

Ditch Screen ≤ 0.4 Shall exceed approach velocity

Divide max. water flow rate (cfs) by

0.4 fps

If screen is longer than 4 feet, angle 45° or less to stream flow

Screen with proven self-cleaning system ≤ 0.4 –

Divide max. water flow rate (cfs) by

0.4 fps

Screen with no cleaning system other than manual

≤ 0.2 – Divide max. water flow rate (cfs) by

0.2 fps

Pump rate 1 cfs or less

1 Velocity perpendicular to screen face at a distance of approximately 3 inches 2 Velocity parallel to screen

Provide ditch screens with a bypass system to transport fish safely and rapidly back to the stream.

(5) Site Restoration - Restore damaged streambanks to a natural slope, pattern, and profile suitable for establishment of permanent woody vegetation unless precluded by pre-project conditions (for example:

natural rock substrate):

• Stabilize all disturbed soils, including obliteration of temporary access roads, following any break in work unless construction will resume in 4 Calendar Days.

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

An Inadvertent Discovery Plan (IDP) has been developed for this project. The IDP is available from the Engineer.

SECTION 00305 - CONSTRUCTION SURVEY WORK

Comply with Section 00305 of the Standard Specifications.

SECTION 00310 - REMOVAL OF STRUCTURES AND OBSTRUCTIONS

Comply with Section 00310 of the Standard Specifications

SECTION 00320 - CLEARING AND GRUBBING

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

00320.40(c) Tree and Vegetation Trimming - Replace the bullet that begins “Trim branches obstructing sight…” with the following bullet:

• Trim and remove branches, vegetation, or other materials obstructing sight distance at intersections or impairing visibility of signs, signals, illumination, and other TCD.

SECTION 00330 - EARTHWORK

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

00330.03 Basis of Performance - Add the following paragraph to the end of this subsection:

Perform all earthwork under this Section except for Stone Embankment on the excavation basis.

00330.82 Embankment Basis Measurement – Replace this subsection, except for the subsection number and title, with the following:

Stone Embankment shall be measured on a weight basis per ton in accordance with Section 00190.10(d)(2).

Payment

00330.94 Embankment Basis Payment - Replace this subsection, except for the subsection number and title, with the following:

Payment for stone embankment will be made per ton in place, and it is considered full compensation for all labor, materials, equipment, and incidentals necessary to complete the work as specified.

SECTION 00350 - GEOSYNTHETIC INSTALLATION

Comply with Section 00350 of the Standard Specifications.

SECTION 00390 - RIPRAP PROTECTION

Comply with Section 00390 of the Standard Specifications.

SECTION 00405 - TRENCH EXCAVATION, BEDDING, AND BACKFILL

Comply with Section 00405 of the Standard Specifications modified as follows:

00405.90 Payment - In the paragraph that begins “No separate or additional…” delete the following bullet:

• sawcutting

Add the following sentence to the end of the subsection:

Sawcutting will be paid for according to Section 00310.

SECTION 00412 - CURED-IN-PLACE PIPE LINING THERMO CURE

Comply with Section 00412 of the Standard Specifications modified as follows:

00412.02 Design Parameters - Add the following to the end of this subsection:

Height of fill from invert ............................ 35 feet Groundwater Elevation above invert ........ N/A Chemical Resistance ............................... ASTM F1743

SECTION 00415 - VIDEO PIPE INSPECTION

Comply with Section 00415 of the Standard Specifications modified as follows:

00415.02 Definitions:

Flexible Pipe - Pipes constructed of corrugated metal are considered Flexible Pipes.

Rigid Pipe - Pipes constructed of concrete and ductile iron are considered Rigid Pipes.

Thermoplastic Pipe - Pipes constructed of polyvinyl chloride, polyethylene, and polypropylene are considered Thermoplastic Pipe.

00415.20(b) Transporter - Replace the paragraph that begins “Use an all-wheel…” with the following paragraph:

Use an all-wheel drive or track mounted transporter capable of inspecting pipes ranging in size from 12 to 60 inches in diameter. Provide a transporter with an adjustable operating speed while recording not to exceed 30 feet per minute.

00415.42 Post Installation Video Inspection - Replace the paragraph that begins “Perform post construction video inspection…” with the following paragraph:

Perform post construction video inspection according to 00415.40 and 00415.41. Video inspect the pipe interior no sooner than 30 Days after the trench backfill and compaction have been completed, and before any paving is performed. If the Contract duration does not permit a 30-Day waiting period, the Engineer may allow the inspection when the compacted backfill reaches a minimum of 2 feet above the pipe crown.

00415.42(a) Deflection Testing for Flexible Pipe - Replace this subsection with the following subsection:

00415.42(a) Post Installation Deflection Testing - Perform post construction deflection testing for all Flexible Pipe and Thermoplastic Pipe as described.

• Flexible Pipe for new pipe installations and extensions greater than 15 feet in length.

• Thermoplastic Pipe for new pipe installations and extensions greater than 10 feet in length.

If any portion of the new pipe interior is not accessible for a visual inspection, then perform deflection testing for the entire installation of new pipe or extension regardless of pipe length.

Use one of the approved following methods:

00415.42(a)(1) Remote Video Inspection with Laser Profiler – Replace the paragraph that begins “Calibrate and perform…” with the following paragraph:

For pipe 48 inches or less in diameter, calibrate, and perform deflection inspection according to ASTM F3080. Use video inspection equipment meeting the requirements of 00415.22.

00415.42(a)(2) Manual Deflection Test - Replace the paragraph that begins “Use equipment meeting…” with the following paragraph:

For pipes larger than 48 inches and when the entire length of the pipe is accessible, use equipment meeting the requirements of 00415.23.

00415.71 Corrections to Deficiencies in Work - Replace the paragraph that begins “Where the pipe deflection…” with the following paragraph:

Where the pipe deflection is greater than 5 percent and less than 7.5 percent of the nominal diameter, submit a remediation plan to the Engineer. The remediation plan must be a stamped Working Drawing according to 00150.35. Replace pipe where the deflection exceeds 7.5 percent of the nominal diameter at no additional cost to Agency.

SECTION 00430 - SUBSURFACE DRAINS

Comply with Section 00430 of the Standard Specifications.

SECTION 00445 - SANITARY, STORM, CULVERT, SIPHON, AND IRRIGATION PIPE

Comply with Section 00445 of the Standard Specifications.

SECTION 00490 - WORK ON EXISTING SEWERS AND STRUCTURES

Comply with Section 00490 of the Standard Specifications.

SECTION 00495 - TRENCH RESURFACING

Comply with Section 00495 of the Standard Specifications.

SECTION 00620 - COLD PLANE PAVEMENT REMOVAL

Comply with Section 00620 of the Standard Specifications.

SECTION 00640 - AGGREGATE BASE AND SHOULDERS

Comply with Section 00640 of the Standard Specifications.

SECTION 00730 - EMULSIFIED ASPHALT TACK COAT

Comply with Section 00730 of the Standard Specifications modified as follows:

00730.11 Emulsified Asphalt – Replace the sentence that begins “Furnish CSS-1, CSS-1h…” with the following sentence:

Furnish CSS-1, CSS-1h, CMS-2, CMS-2S, CMS-2h, CRS-1, CRS-2, HFRS-2, HFMS-2 or HPTC as selected by the Contractor.

00730.90 Payment - Replace this subsection, except for the subsection number and title, with the following:

No separate or additional payment will be made for Emulsified Asphalt tack coat. Approximately 1 Tons of Emulsified Asphalt in tack coat will be required on this Project.

SECTION 00744 - ASPHALT CONCRETE PAVEMENT

Comply with Section 00744 of the Standard Specifications modified as follows:

00744.11(a) Asphalt Cement - Add the following to the end of this subsection:

Provide PG64-22 grade asphalt cement for this Project.

00744.16 Sampling and Testing - Replace this subsection, except for the subsection number and title, with the following:

For each 1,000 Tons of placement, have a CAT I perform a minimum of one of each of the following test methods as modified in the MFTP:

• Asphalt Content - AASHTO T 308 with ODOT TM 323 determined Calibration Factor

• Gradation - AASHTO T 30

• Mix Moisture - AASHTO T 329

• Maximum Specific Gravity - AASHTO T 209

• Field Compacted Gyratory Specimens - ODOT TM 326

When less than 1,000 Tons of mix is placed in a Day, perform a minimum of one series of tests per Day.

Provide test results to the Engineer by the middle of the following work shift. The Engineer may waive the requirement for any of AASHTO T 308, AASHTO T 30, AASHTO T 329, and ODOT TM 326 on a daily basis. The Engineer may waive the requirement for AASHTO T 209 when less than 500 Tons of ACP is placed in a single work shift.

Provide samples or split samples to the Engineer when requested.

00744.17 Acceptance - Replace this subsection, except for the subsection number and title, with the following:

If the test result for each mix gradation constituent, asphalt content, and density measurement is within the specification limits, the material will be accepted. If the asphalt content, one or more gradation constituents, or the density measurement are not within the specification limits, the material that is not within the specification limits will be accepted according to 00150.25.

00744.41 Mixing Temperature - Replace the table with the following:

Temperature, °F Type Maximum Minimum Behind at Mixer Paver

HMAC 350 240

WMAC 350 215

00744.49 Compaction - Replace the paragraph that begins "Determine compliance with…" with the following paragraph:

Determine compliance with density Specifications by random testing of the compacted surface with calibrated nuclear gauges. Determine the density by averaging QC tests performed by a CDT with the nuclear gauge operated in the backscatter mode according to AASHTO T 335 at one random location for each 100 Tons of asphalt concrete placed, but take no less than three tests each shift. Do not locate the center of a density test less than 1 foot from the Panel edge. Calculate MAMD according to ODOT TM 305.

The Engineer may waive compaction testing requirements when less than 500 Tons of ACP is placed in a single work shift.

00744.51 Opening Sections to Traffic - Schedule work so that, during the same shift, the surfaces being paved are paved full width and length through the wearing Course before opening to traffic.

SECTION 00759 - MISCELLANEOUS PORTLAND CEMENT CONCRETE STRUCTURES

Comply with Section 00759 of the Standard Specifications.

SECTION 00840 - DELINEATORS AND MILEPOST MARKER POSTS

Comply with Section 00840 of the Standard Specifications.

SECTION 00842 - FACILITY IDENTIFICATION MARKERS

Comply with Section 00842 of the Standard Specifications.

SECTION 00850 - COMMON PROVISIONS FOR PAVEMENT MARKINGS

Comply with Section 00850 of the Standard Specifications.

SECTION 00855 - PAVEMENT MARKERS

Comply with Section 00855 of the Standard Specifications.

SECTION 00865 - LONGITUDINAL PAVEMENT MARKINGS - DURABLE

Comply with Section 00865 of the Standard Specifications.

SECTION 01030 - SEEDING

Comply with Section 01030 of the Standard Specifications modified as follows:

01030.13(f) Types of Seed Mixes - Add the following to the end of this subsection:

Provide the following seed mix formulas:

• _Permanent Seeding:

Botanical Name PLS Specified Rate (Common Name) (lb/acre) Achillea millefolium (White Yarrow) _4.0___ Bromus carinatus (California Brome) 5.0___ Danthonia californica (California Oatgrass) 4.0___ Deschampsia caespitosa (Tufted Hairgrass) 4.0___ Elymus glaucus (Blue Wildrye) 5.0____ Juncus effusus (Soft Rush) 2.0____ Juncus bufonius (Toad Rush) 1.0____ Lupinus rivularis (Riverbank lupine) 3.0____ Alnus rubra (Red alder) 3.0____ Regreen Sterile Wheat (Wheat x Wheatgrass hybrid) 10.0____

* Oregon Certified Seed

01030.15 Mulch - Add the following paragraph(s) and bullets to the end of this subsection:

Furnish straw mulch for all temporary roadside erosion control seeding, except hydromulch may be used under the following conditions:

• Spring planting west of the Cascades between March 1 and May 15.

• Slopes are steeper than 1V to 1.5H and longer than 16 feet.

• Residential or commercial sites with low erosion potential such as sidewalk, Median, or parking lot planter strips.

Projects that have variable slopes may include straw mulch and hydromulch when approved.

SECTION 01040 - PLANTING

Comply with Section 01040 of the Standard Specifications.