00004724_Att B_Specifications.docx

ATTACHMENT B – SPECIFICATIONS

US20 MP2.8 ROCK FALL BARRIER (NEWPORT)

Standard Specifications:

The 2021 Oregon Standard Specifications for Construction (Standard Specifications) include detailed technical specifications in Parts 00200 and beyond that apply to this Invitation to Bid and the resulting Contract. Some sections of the technical specifications are identified and modified in the Special Provisions below. Sections of the technical specifications not identified in the Special Provisions remain applicable to the Contract according to their original terms. Part 00100 (General Conditions) does not apply to this Invitation to Bid and resulting Contract; however, if a technical specification (Parts 00200 and beyond) references a Section from Part 00100, that Section from Part 00100 applies to the Contract for purposes of supporting and giving full effect to the technical specification.

All number references in the Special Provisions shall be understood to refer to the Sections and subsections of the Standard Specifications bearing like numbers.

The Standard Specifications are available at:

https://www.oregon.gov/odot/Business/Specs/2021_STANDARD_SPECIFICATIONS.pdf

Standard drawings referenced in the Standard Specifications/Special Provisions are available at:

http://www.oregon.gov/ODOT/Engineering/Pages/Standards.aspx

SPECIAL PROVISIONS:

SECTION 00220 - ACCOMMODATIONS FOR PUBLIC TRAFFIC

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

00220.02(a) General Requirements - Add the following bullets to the end of the bullet list:

When an abrupt edge is created by excavation, protect traffic according to the "Excavation Abrupt Edge" and the "Typical Abrupt Edge Delineation" configurations shown on the Standard Drawings.

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 Corvallis-Newport Highway US20 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 in each direction on the Corvallis-Newport Hwy. US20 may be closed during the following times:

Nightly, Sunday night through Friday morning, between 7:00 p.m. and 6:00 a.m.

SECTION 00221 - COMMON PROVISIONS FOR WORK ZONE TRAFFIC CONTROL

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

00221.03 Traffic Safety and Operations - Replace the bullet that begins “When paving operations create…” with the following bullet:

When paving operations create an abrupt or sloped edge drop off greater than 1 inch, protect traffic by installing signing according to the "2 Lane, 2 Way Roadway Overlay Area" detail shown on the Standard Drawings. Protect longitudinal and transverse Pavement joints by placing and maintaining an asphalt concrete wedge according to 00221.07(c)(1).

00221.07(c)(1) Paving - Replace this subsection, except subsection number and title, with the following:

When the longitudinal joint is greater than 1 inch in height, install additional TCD according to 00221.03. Complete the placing of ACP and construction of paving joints according to 00735.48, 00735.49, 00743.45, 00744.44, 00744.45, 00745.47, and 00745.48, as applicable.

00221.90(b) Temporary Protection and Direction of Traffic ‑ Delete the bullet that begins “Moving temporary barrier to and from Contractor’s stockpile areas”.

Replace the bullet that begins "When the Schedule of Items does not include …" with the following bullet:

Preparing and signing the daily “Traffic Control Inspection Report”, when a TCS is not included in the Schedule of Items or when a TCS is not onsite for a work shift.

SECTION 00222 – TEMPORARY TRAFFIC CONTROL SIGNS

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

00222.45(b) Portable Changeable Message Signs - Add the following bullets to the end of this subsection:

At least seven Calendar Days before the single-lane closure of US20, place one or more PCMS displaying the following message as shown, or as directed:

SECTION 00224 - TEMPORARY TRAFFIC CHANNELIZING DEVICES

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

00224.46 Pavement Edge Delineation - Replace the paragraph that begins “Place tubular or conical markers…” with the following paragraph:

Place tubular or conical markers to delineate the edge of Pavement immediately after construction Work or paving operations create an abrupt or sloped edge drop-off greater than 1 inch in height along the right hand or left hand Shoulder.

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 on the excavation basis.

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)(5) Waste Materials - Replace this subsection, except for the subsection number and title, with the following:

Unless otherwise specifically allowed and subject to the requirements of Section 00280, dispose of materials, classed as waste materials in 00330.41(a)(3), outside and beyond the limits of the Project and Agency controlled property according to 00290.20. Do not dispose of materials on Wetlands, either public or private, or within 300 feet of rivers or streams.

SECTION 00350 - GEOSYNTHETIC INSTALLATION

Comply with Section 00350 of the Standard Specifications modified as follows:

00350.01 Definitions ‑ Replace the sentence that begins “Embankment Geotextile ‑ For installation…“ with the following sentence:

Embankment Geotextile ‑ Embankment geotextile is used as a reinforcement within embankments and as a separation and reinforcement under embankments.

Replace the bullet that begins “Nonwoven Geotextile ‑ A textile…“ with the following bullet:

Nonwoven Geotextile ‑ A textile produced by bonding or interlocking of fibers by mechanical, heat or chemical means.

Replace the sentence that begins “Riprap Geotextile ‑ For installation…“ with the following sentence:

Riprap Geotextile ‑ Riprap geotextile is used as a filter and separator behind or beneath riprap, Buttresses, inlays, shear keys and erosion control applications.

Replace the sentence that begins “Subgrade Geotextile ‑ For installation…“ with the following sentence:

Subgrade Geotextile ‑ Subgrade geotextile is used as a separator and reinforcement on Subgrades and in other material separation applications.

00350.41(f)(5) Geotextile Placement ‑ Replace the paragraph that begins “Slit wrinkles or folds …“ with the following paragraph:

Slit wrinkles or folds exceeding 1 inch and lay flat. Shingle-lap not more than 6 inches in the direction of the paving. Broom or squeegee to smooth the geotextile and pneumatic roll to maximize geotextile contact with the Pavement surface. Additional hand-placed sealant material may be required at laps as determined.

SECTION 00730 - EMULSIFIED ASPHALT TACK COAT

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

00730.11 Emulsified Asphalt ‑ In the paragraph that begins "Obtain samples according to AASHTO T 40…" replace the words “AASHTO T 40” with the words “AASHTO R 66”.

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.

SECTION 00740 - COMMERCIAL ASPHALT CONCRETE PAVEMENT (CACP)

Comply with Section 00740 of the Standard Specifications.

SECTION 00820 - CONCRETE BARRIER

Comply with Section 00820 of the Standard Specifications.

SECTION 02030 – SUPPLEMENTARY CEMENTITIOUS MATERIALS

Comply with Section 02030, of the Standard Specifications modified as follows:

02030.00 Scope ‑ Replace this subsection, except for the subsection number and title, with the following:

This Section includes the requirements for fly ash, natural pozzolans, silica fume, ground granulated blast furnace slag and high reactivity pozzolans used in portland cement concrete.

02030.10 Fly Ash ‑ Replace this subsection, except for the subsection number and title, with the following:

Furnish Class C and Class F fly ash from the QPL and conforming to AASHTO M 295 (ASTM C618).

Add the following subsection:

02030.15 Natural Pozzolans ‑ Furnish Class N natural pozzolans from the QPL and conforming to AASHTO M 295 (ASTM C618).

02030.50 Metakaolin ‑ Replace this subsection with the following:

02030.50 High Reactivity Pozzolans ‑ Furnish high-reactivity pozzolans from the QPL and conforming to AASHTO M 321.

SECTION 02050 ‑ CURING MATERIALS

Comply with Section 02050 of the Standard Specifications modified as follows:

02050.10 Liquid Compounds - Replace the paragraph that begins “Furnish liquid membrane-forming curing…“ with the following paragraph:

Furnish liquid membrane-forming curing compounds from the QPL and meeting the requirements of ASTM C309. Before use, submit a one quart sample from each lot for testing. Samples will be tested according to ODOT TM 721. Samples are not required for curing compounds used on Commercial Grade Concrete.