00007360_Att B_Special Provisions.docx

ATTACHMENT B

SPECIFICATIONS AND SPECIAL PROVISIONS

US30: Clatskanie River Bridge Project Lower Columbia River Highway Columbia County

WORK TO BE DONE

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

1. Install and maintain temporary traffic control.

2. Install and maintain erosion and sediment control.

3. Construct staging area.

4. Install riprap mitigation at piers.

5. Remove staging area and permanent seed all disturbed areas.

6. Perform additional and Incidental Work as called for by the Specifications and Plans.

PROJECT INFORMATION

Information pertaining to these Specifications or the project Plans may be obtained from the following*:

Jayson Buchholz ODOT Resident Engineer 350 West Marine Drive, Astoria, Oregon 97103 Email Jayson.W.Buchholz@odot.oregon.gov.

All requests for information must be in writing with reference to the Project name.

*Requests for information regarding the ITB documents or bid or award process must be submitted to the Purchaser/Info Contract identified in OregonBuys.

FEDERAL REQUIREMENTS FOR MATERIALS

The construction portion of this project is State funded. However, some federal dollars were used in other phases; therefore, the following material preferences apply to this ITB and resulting Contract:

Section 1518 of Moving Ahead for Progress in the 21st Century Act provides that Buy America applies to all Contracts eligible for federal assistance under Title 23, United States Code, included within the scope of an applicable National Environmental Policy Act (NEPA) finding, determination or decision, regardless of the funding source of such Contracts, where at least one Contract is funded with Title 23 funds. This Contract includes Title 23 funds under such a NEPA finding, determination or decision and Buy America under subsection (3.1) and Build America Buy America under subsection (3.2) apply to this Contract.

1. Buy America Requirements Contractor shall limit the quantity of foreign materials incorporated into the Work as follows. Section 635.410 of Title 23, Code of Federal Regulations, and the Intermodal Surface Transportation Efficiency Act require that all iron or steel manufacturing processes, including, without limitation, the casting of ingots, for iron or steel materials permanently incorporated into the project shall occur in the United States, unless the cost of foreign-origin iron or steel materials does not exceed one-tenth of one percent (0.1%) of the Contract Amount or $2,500, whichever is greater. Contractor shall not incorporate foreign-origin iron or steel materials in excess of this amount into the project. All foreign-origin iron or steel materials incorporated in the project in excess of the amount indicated above shall be removed and replaced with domestic iron or steel materials at Contractor's expense. For purposes of this Specification, the cost of foreign-origin iron or steel materials shall be the value of the iron or steel products as of the date they are delivered to the project Site.

Manufacturing processes include without limitation the application of coatings to finished iron or steel products or components. Coatings include epoxy coating, galvanizing, painting, and any other coating that protects or enhances the value of the steel or iron product or component.

Contractor shall provide the Owner’s Authorized Representative with a Certificate of Materials Origin, on a form furnished by ODOT, before incorporating any iron or steel products into the project. Unless a Certificate of Materials Origin has been provided to the Owner’s Authorized Representative, the materials shall be considered of foreign origin.

Contractor shall retain manufacturers' certificates verifying the origin of all domestic iron or steel materials for 3 years after the date of final payment for the project, and shall furnish copies to the Owner’s Authorized Representative upon request.

Contractor shall include this provision in all subcontracts.

2. Build America Buy America Act Requirements If federal highway funds are involved on the project, Contractor shall comply with the Build America Buy America Act and implementing regulations (Infrastructure Investment and Jobs Act (“IIJA”), Pub. L. No. 117‑58, which includes the Build America, Buy America Act (“the Act”). Pub. L. No. 117‑58, Sections 70901‑70941).

All of the manufacturing processes must occur in the United States for the applicable construction materials permanently incorporated in the project as listed below.

Construction materials include an article, material, or supply that is or consists primarily of:

non-ferrous metals;

plastic and polymer-based products (including polyvinylchloride, composite building materials, and polymers used in fiber optic cables);

glass;

lumber; or drywall.

Contractor shall provide the Owner’s Authorized Representative with a Certificate of Materials Origin, on a form furnished by ODOT, before incorporating any applicable construction materials into the project. Unless a Certificate of Materials Origin has been provided to the Owner’s Authorized Representative, the products and materials shall be considered of foreign origin.

No de minimis amount has been established for applicable construction materials permanently incorporated into the project. Strict compliance is required.

Contractor shall retain manufacturers' certificates verifying the origin of all applicable construction materials for 3 years after the date of final payment for the project, and shall furnish copies to the Owner’s Authorized Representative upon request.

Manufactured products assembled outside the project site are not subject to the Build America Buy America requirements. Manufactured products are items that consist of two or more of the listed construction materials that have been combined together through a manufacturing process, and items that include at least one of the listed construction materials combined with a material that is not listed through a manufacturing process, and should be treated as manufactured products, rather than as construction materials.

Iron and steel materials are subject to the Buy America Requirements above in Section 1.

Contractor shall include this provision in all subcontracts.

3. CARGO PREFERENCE ACT REQUIREMENTS

Contractor shall comply with the Cargo Preference Act and implementing regulations (46 CFR Part 381) for use of United States flag ocean vessels transporting materials or equipment acquired specifically for the project. Strict compliance is required, including, but not limited to, the clauses in 46 CFR 381.7(a) and (b), which are incorporated by reference. Contractor shall include this provision in all subcontracts.

Additional information may be available at the following websites:

https://www.fhwa.dot.gov/construction/cqit/cargo.cfm https://www.fhwa.dot.gov/construction/cqit/cargo/qa.cfm

SPECIAL PROVISIONS

The following special provisions identify and modify certain sections of the Standard Specifications which are incorporated into this ITB and resulting Contract in ITB section C.2.6. The Standard Specifications are available online at:

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

All number references in the special provisions shall be understood to refer to the sections and subsections of the Standard Specifications bearing like numbers.

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:

00220.03(a) Over-Dimensional Vehicle Restrictions - Replace this subsection, except subsection number and title, with the following:

When the Project restricts the width, length, height, or weight of vehicles through a work zone or detours trucks around a work zone, fill out and submit a completed copy of the "Highway Restriction Notice - Size and/or Weight" form (Form No. 734-2357), available from the ODOT Oregon Trucking Online website:

https://www.oregon.gov/ODOT/MCT/Pages/FormsandTables.aspx, at least 35 Calendar Days before the restriction or detour takes effect.

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 Lower Columbia River Highway Highway Route No. 30_ when allowed, shown, or directed during the following periods of time except as specified in 00220.40(e)(2):

· Nightly, Monday night through Friday morning, between 5:00 p.m. and 5:00 a.m.

· Sunday, between 7:00 p.m. and Monday 5:00 a.m.

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:

Hood to Coast Relay: August 23 – 24, 2024 (Tentative - Date to be confirmed)

Add the following subsection:

00220.45 Load Restrictions on Bridges -

For Structure No. 07519, limit the combined weight of construction vehicles, Equipment, and daily Material usage to 45,000 pounds for every 1,000 square feet of surface area plus the weight of long term storage of Materials to 18,000 pounds for every 100 square feet of surface area of the Bridge or a total of 150,000 pounds for each span of the Bridge, whichever is less.

The Contractor may request alternate loadings by submitting, 30 Calendar Days before proposed loadings, stamped loading calculations and data according to 00150.35.

SECTION 00221 - COMMON PROVISIONS FOR WORK ZONE TRAFFIC CONTROL

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

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:

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

Place a “WAIT FOR FLAGGER” (CR4-23) sign approximately 50 feet in advance of each flagger station, facing incoming pedestrian traffic. Install the sign on a conical marker or other temporary sign support, as shown or as directed. Do not allow the sign installation height or location to block the visibility of the flagger for incoming public traffic.

Install "ROAD WORK AHEAD" (W20‑1‑48) signs with a 36 by 24-inch "FINES DOUBLE" (R2‑6aP) rider on the Lower Columbia River Highway, according to the "TCD Spacing Table" shown on the Standard Drawings or as modified by the Plans except do not install the "FINES DOUBLE" rider on concrete barrier mounted signs.

Install beyond each end of the Project, facing outgoing traffic, an "END ROAD WORK" (CG20‑2A‑24) sign a distance of (A ÷ 2) according to the "TCD Spacing Table" shown on the Standard Drawings or as modified by the Plans.

SECTION 00223 - WORK ZONE TRAFFIC CONTROL LABOR AND VEHICLES

00223.31(b) Traffic Control Inspection Without TCS ‑ Replace the bullet that begins “Prepares and signs a daily “Traffic Control Inspection Report”…” with the following bullet:

Prepares and signs a “Traffic Control Inspection Report” (Form No. 734-2474) upon the initial installation of TCM and each working day when any modification, removal, or reinstallation of TCM are made, or as directed by the Engineer. Submit completed reports to the Engineer no later than the end of the next working day.

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:

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.

00245.03 Temporary Water Management Plan - The Agency TWMP is a concept plan. 28 Calendar Days before beginning Work in regulated Work areas, submit Working Drawings of a Contractor-developed TWMP, according to 00150.35, based on either the Agency’s concept plan or an independent plan that meets water quality and environmental guideline requirements and does not negatively affect neighboring properties or water rights.

Include the following minimum information in the TWMP:

How the Work area is isolated from the active stream flow upstream, through, and downstream.

How the stream flow is routed and conveyed around or through the isolated Work area.

How fish passage is provided around the Work area, if required.

Description of all construction stages, including appropriate contact points for each stage.

A list of on‑site backup Materials and Equipment.

Provide the name of the TWM Subcontractor (if applicable) and Contractor’s superintendent, and their 24‑hour contact phone number 10 Days before the pre-Work meeting. If changes in the appointment of the TWM Subcontractor or Contractor’s superintendent occur during the term of the Contract, provide written notice to the Engineer within 5 Calendar Days of the change.

Any change to the TWMP during construction requires approval prior to implementation.

Obtain the Engineer's written approval before beginning Work in in‑water Work areas.

00245.04 Pre-Work Meeting ‑ Before beginning any TWM Work, attend a pre-work meeting at the Project Site with the Engineer no more than 8 Calendar Days prior to implementation of TWM. Required meeting attendees include:

Engineer Contractor TWM Subcontractor (if applicable) Agency Environmental Coordinator or their appointed representative

The pre-Work meeting agenda typically includes the method of TWM, the TWMP, fish salvage plan and strategy, describe environmental risks, turbidity monitoring, site clean-up expectations, and the circumstances under which contacting the Engineer is required.

Materials

00245.10 Materials - Furnish Materials meeting the following requirements:

Sandbags 00280.15(a)

Provide Type 1 DOT floating turbidity curtain or other Engineer approved isolation device.

Construction

00245.40 Fish Removal - Qualified Agency, ODFW, or ODOT consultant biologists will remove fish and other aquatic organisms from the isolation Work areas. Coordinate fish removal with the Engineer at least 28 Calendar Days before beginning Work in regulated Work areas. Allow access into the isolation Work areas before, during and after installation of the TWMF to perform the specified tasks as follows:

Before any in-water Work, including installing TWMF, qualified personnel will remove fish and other native aquatic organisms from within the proposed isolated Work area.

00245.41 Installation - During installation of the TWMF, maintain a downstream water flow rate of at least 50 percent of the upstream water flow rate.

Floating Turbidity Curtain – For in-water work area isolation, install the Engineer-approved turbidity curtain or device prior to placement of any materials within the open water. Anchor the turbidity curtain to shore on each end. Install ropes to the shore and river bottom to anchor the turbidity curtain as need dictates. Secure the bottom edge of the turbidity curtain to the river bottom by placing sandbags along the bottom edge of the geotextile fabric on a minimum width of 3 feet.

00245.42 Operation - Operate TWM as follows:

Protect fish and fish habitat according to 00290.34.

Maintain and control water flow downstream of the isolated Work area for the duration of the diversion to prevent downstream de-watering.

In the event of containment failure immediately notify the Engineer so arrangements can be made to remove fish and aquatic organisms from the isolation Work areas prior to the continuation of Work within the ordinary high water limits.

Maintenance

00245.60 Maintenance - Monitor water turbidity according to 00290.30(a)(8).

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. Maintain downstream water flow during removal of the facility.

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 _______ :

Turbidity monitoring will be measured according to 00290.80.

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 _______ ".

The location of the facility will be inserted in the blank.

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.

Turbidity monitoring will be paid for according to 00290.90.

No separate or additional payment will be made for TWMP, maintaining, operating, monitoring, moving, or removing the facility.

SECTION 00253 - TEMPORARY WORK ACCESS AND CONTAINMENT

Comply with Section 00253 of the Standard Specifications modified as follows:

00253.00 Scope - Add the following paragraphs to the end of this subsection:

On Structure No. 07519, provide temporary work access and containment for rip rap placement on all spans.

00253.03 Submittals - Replace this subsection, except for the subsection number and title, with the following:

(a) Work Containment Submittals ‑ Submit all specified stamped drawings, specifications and design calculations for containment, access, heating, and ventilating systems according to 00150.35 at least 21 Calendar Days prior to the installation of work access systems.

Submit the following:

Stamped containment Working Drawings, specifications and design calculations.

Appropriate submittals for access Structures, barge, or other information critical to the function of the containment system.

(b) Barge Submittals ‑ Submit all specified stamped drawings, specifications and design calculations for barges, floats, and rafts supporting work according to 00150.35 at least 21 Calendar Days prior to the use of Barge(s).

Submit the following:

Stamped barge plans detailing:

Equipment layout, operational limitations including: storm surge, water levels, and wind speeds, spuds, anchorages and Equipment anchorages, Stamped calculations including:

barge load capacity, balance and stability, strength of spuds and anchorages, and strength of Equipment anchorage Specifications describing how barges are kept within safe load and balance/stability limits, and Narrative detailing how the outfitting, operation, and maintenance of the barges comply with the following:

· operational, safety and environmental requirements according to 00290.30 and 290.34

· United States Coast Guard requirements

Add the following subsection:

00253.44 Marine Traffic Restrictions -

Bridge No. 07519 may not be closed to marine traffic.

Do not stop or hold marine traffic for more than 20 minutes.

00253.50 Electrical Service ‑ Delete this subsection.

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 paragraphs:

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.

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

00280.02 Definitions ‑

Replace the sentence that begins “Temporary Stabilization” with the following sentence:

Temporary Stabilization ‑ Covering soil or other measures to prevent erosion until permanent stabilization measures are in place and established.

00280.15(f)(1) Filter Sock Material - Replace this subsection, except subsection number and title, with the following subsection:

5-mil thick woven tubular mesh netting with 1/8 to 3/8-inch openings and consisting of a plant fiber mesh netting from the QPL. Netting made from plastic or monofilaments will be rejected.

Furnish filter sock Material with a diameter of 12 inches.

Add the following subsection:

00280.16(l) Staging Area – Furnish materials meeting the following requirements:

· Aggregate: Clean, well graded, angular material, visibly well-graded from coarse to fine with a maximum size of 2 inches.

· Geotextile – Subgrade geotextile meeting the requirements of Section 02320. Provide documentation according to 02320.10(c).

00280.41(a) Disturbance Limits - Replace this subsection, except for the subsection number and title, with the following:

Prior to any ground disturbing activity, delineate all construction site clearing limits with high visibility markings and do not disturb areas outside the clearing limits. Prior to beginning construction activities, delineate and protect riparian areas including trees, root zones and vegetation to be preserved and delineate and protect vegetated buffer zones according to 00280.41(e). Protect post-construction stormwater facilities, unless used during construction as sediment trap, in which case, repair according to 00280.46(h).

Add the following subsection

00280.41(e) Buffers ‑ Retain and preserve buffer zones of natural, undisturbed vegetation, 50 feet in width between Work and waters of the State and sensitive areas including water bodies, wetlands, springs and seeps. Where 50 foot buffers are not attainable, provide erosion, runoff and sediment control BMPs as shown or directed.

Add the following subsection:

00280.41(f) Hauling Material ‑ Cover loads carrying soil or sediment when leaving Project Site. Drain saturated loads on site or haul in water tight beds.

Add the following subsection:

00280.41(g) Underground Injection Controls (UIC) ‑ Do not allow storm water from work area to enter Underground Injection Control (UIC) inlets, catch basins or wells.

00280.46(a) Construction Entrances ‑ Add the following to the end of this subsection:

Construct the construction entrances as shown or directed.

Add the following subsection:

00280.46(j) Access Routes ‑ Stabilize unpaved access and haul routes within the Project Site with Aggregate or as approved by Engineer.

Add the following subsection:

00280.46(k) Staging Area – Construct staging area as shown or directed.

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

00280.62 Inspection and Monitoring - Replace the paragraph that begins "Ensure that regular site inspection …" with the following paragraphs:

Inspect the Project Site and all ESC devices for potential erosion or sediment movement on a weekly basis and when 1/2 inch or more of rainfall occurs within a 24 hour period, including weekend and holidays.

If a significant noncompliance or serious water quality issue occurs that could endanger health or the environment, verbally report it to the Engineer within 24 hours.

00280.62(b) Rainfall ‑ Replace this subsection, except for the subsection number and title, with the following subsection:

Furnish and install a temporary rain gauge at the Project site. Upon approval, storm event information may be derived from weather stations that are representative of precipitation levels at the site.

The closest on-line rain gauge is located at:

forecast.weather.gov/MapClick.php?lat=46.10402&lon=-123.20399&unit=0&lg=english&FcstType=graphical

00280.63(c) Paved Areas ‑ Replace this subsection, except for the subsection number and title, with the following subsection:

Keep all paved areas clean for the duration of the Project. Use cleaning methods that do not transport sediment-laden water to receiving streams. Remove sediment that has been tracked-out from the Project Site by the end of the same business day. If the sediment track-out occurs on a non-business day, remove the sediment by the end of the next business day.

00280.90 Payment - Replace this subsection, except for the subsection number and title, with the following:

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) Erosion Control Lump Sum

Erosion Prevention

(c) Plastic Sheeting Square Yard

Add the following Pay Item to the Pay Item list:

(p) Staging Area Square Yard

Item (a) includes:

mobilization furnishing, stockpiling, protecting, restocking, and removing emergency Materials preparing Project for a period of extended non-activity inspecting, maintaining, and removing erosion control devices restoring, mulching, tacking, and seeding all disturbed ground, Work, and storage areas not otherwise covered

Partial payment for items (a) will be made as follows:

When the initial Contractor developed ESCP, narrative, and schedule are complete and accepted, and the initial erosion control devices are installed 25% When 50 percent of the Contract is complete, excluding advances on Materials 25% When 75 percent of the Contract is complete, excluding advances

Item (c) includes protecting exposed slopes with plastic sheets, anchoring devices, and providing toe protection.

Item (p) includes aggregate and geotextile.

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:

constructing and removing temporary slope berms erosion control for Work outside the construction limits including but not limited to limited to, Borrow pits, haul roads, disposal sites, and Equipment storage sites modifications or additions to the ESCP.

No separate or additional payment will be made for constructing laps, seams, joints, wraps, overlaps, joint overlaps, or patches unless the Engineer orders additional amounts in excess of the minimum. For laps, wraps, or overlaps that that have been ordered by the Engineer and exceed the minimum or specified length or width, payment will be made for the added lap, overlap, or wrap length or width at the Contract unit price.

Water used for non-chemical dust control will be paid according to Section 00340.

Additional ESC devices required for permit compliance will be paid for according to 00195.20.

SECTION 00290 - ENVIRONMENTAL PROTECTION

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

Add the following subsection:

00290.30(a)(7) Water Quality:

Do not discharge contaminated or sediment-laden water, including drilling fluids and waste, or water contained within a work area isolation, directly into any waters of the State or U.S. until it has been satisfactorily treated (using a best management practice such as a filter, settlement pond, bio-bag, dirt-bag, or pumping to a vegetated upland location).

Do not use permanent stormwater quality treatment facilities to treat construction runoff unless prescribed by an ESCP approved under Section 00280.

If construction discharge water is released using an outfall or diffuser port, do not exceed velocities more than 4 feet per second, and do not exceed an aperture size of 1 inch.

Do not use explosives under water.

Implement containment measures adequate to prevent pollutants or construction and demolition materials, such as waste spoils, fuel or petroleum products, concrete cure water, silt, welding slag and grindings, concrete saw cutting by-products and sandblasting abrasives, from entering waters of the State or U.S.

Implement containment measures adequate to prevent flowing stream water from coming into contact with concrete or grout within the first 24 hours after placement.

Do not end-dump riprap into the waters of the State or U.S. Place riprap from above the ordinary high water line.

Cease Project operations under high flow conditions that may result in inundation of the Project area, except for efforts to avoid or minimize resource damage.

The Engineer retains the authority to temporarily halt or modify the Work in case of excessive turbidity or damage to natural resources.

If Work activities violate permit conditions or any requirement of this subsection, stop all in-water work activities and notify the Engineer.

00290.30(a)(8) Meter Turbidity Monitoring - In addition to any turbidity monitoring required by 00280.62(c) to comply with NPDES 1200 series requirements, monitor turbidity using a turbidity meter every two hours during in-water work according to the following:

Use a turbidity meter that has been maintained and calibrated according to the manufacturer’s specifications.

Measure stream turbidity before beginning each day’s in-water work to establish pre-construction turbidity levels.

Measure upcurrent and downcurrent turbidity at two-hour intervals during in-water work and perform work based on turbidity measurements according to the following:

Take upcurrent samples at a location representative of background turbidity approximately 100 feet from the in-water work area.

Take downcurrent samples at a location approximately 100 feet from the in-water work area at approximately mid-depth of the water body and within any visible turbidity plume.

If the downcurrent reading is less than 5 nephelometric turbidity units (NTU) higher than the upcurrent reading, continue to work and take readings every two hours.

If the downcurrent reading is greater than or equal to 5 and less than 30 NTU higher than the upcurrent reading, modify work procedures and repair or implement best management practices (BMP), continue work, and continue to take readings every two hours. If after four hours the downcurrent reading is still greater than or equal to 5 NTU higher than the upcurrent reading, stop all in‑water work and repair or implement additional BMP. Resume in‑water work activities only after the downcurrent reading is less than 5 NTU above the upcurrent reading.

If the downcurrent reading is greater than or equal to 30 and less than 50 NTU higher than the upcurrent reading, modify work procedures, repair or implement BMP and continue work. If, at the subsequent two-hour reading, the downcurrent reading is still more than 30 NTU higher than the upcurrent reading, stop all in‑water work and repair or implement additional BMP. Resume in‑water work activities only after the downcurrent reading is less than 5 NTU above the upcurrent NTU reading.

If the downcurrent reading is 50 NTU or more higher than the upcurrent reading, stop all in‑water work, repair or implement additional BMP, and inform the Agency. Resume in‑water work activities only after the downcurrent reading is less than 5 NTU above the upcurrent NTU, as determined by continued readings made at least every two hours, or the next day's initial turbidity reading.

Document all turbidity monitoring observations on form 734-2755, “Turbidity Monitoring Report”, or another form approved by the Agency. Submit reports to the Engineer weekly during in-water work and keep copies of the reports at the Project Site.

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 the area at or below the ordinary high water (HMT) elevation shown on the plans.

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

The total volume of material filled or discharged into waters of the State and waters of the U.S. shall not exceed 112 cubic yards not including fill from the spuds.

The total volume of material excavated from the waters of the State and waters of the U.S. shall not exceed 0 cubic yards not including removal from the spuds.

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(b) Prohibited Operations - Add the following to the end of this subsection:

Allow entry within the regulated work area

Add the following subsection:

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

(1) General Requirements:

Do not install fish ladders (for example: pool and weirs, vertical slots, fishways) or fish trapping systems.

Do not apply surface fertilizer within 50 feet of any stream channel.

Use heavy equipment as follows:

Choice of equipment must have the least adverse effects on the environment (for example: minimally sized, low ground pressure).

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.

If temporary access roads are needed within 150 feet of any body of water, use existing routes unless new routes are shown or approved.

Before beginning work on temporary access routes that are not shown, submit a proposal to the Engineer for approval.

(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

(Ft./Sec.)

Sweeping Velocity 2 (Ft./Sec.)

Wetted Area of Screen (Sq. Ft.)

Comments

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

0.4 fps

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.

(4) Special Aquatic Habitats - The following exploration or construction activities are not allowed in special aquatic habitats:

Use of pesticides and herbicides, unless allowed according to Section 01030.

Use of short pieces of plastic ribbon to determine flow patterns.

Temporary roads or drilling pads built on steep slopes, where grade, soil type, or other features suggest a likelihood of excessive erosion or slope failure.

Exploratory drilling in estuaries that cannot be conducted from a work barge, or an existing bridge, dock, or wharf.

Installation of a fish screen on any permanent water diversion or intake that is not already screened.

Drilling or sampling in an EPA-designated Superfund Site, a state-designated clean-up area, or the likely impact zone of a significant contaminant source, as identified by historical information, U. S. Army Corps of Engineers representative, or the Agency.

(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):

Replant all damaged streambanks before the first April 15 following construction.

If use of large wood, native topsoil, or native channel material is required for the site restoration according to the roadside development plans, stockpile all large wood, native vegetation, weed-free topsoil, and native channel material displaced by construction. Cut trees or large wood and trees into pieces of no less than 20 feet in length, or as shown on the roadside development plans or as directed. Stockpiled native wood and vegetation remain the property of the Agency.

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

(6) Surface Water Diversions - Surface water may be diverted to meet construction needs other than work area isolation, consistent with Oregon law, only if water from sources that are already developed, such as municipal supplies, small ponds, reservoirs, or tank trucks, is unavailable or inadequate, and meeting the following conditions:

When alternative surface sources are available, divert from the stream with the greatest flow.

Install, operate, and maintain a temporary fish screen.

Do not exceed a pumping rate and volume of 10 percent of the available flow. For streams with less than 5 cubic feet per second, do not exceed drafting of 18,000 gallons per day. Do not use more than one pump for each site.

(7) Treated Wood - Treated wood includes any wood treated with any pesticide or wood preservatives. Do not use lumber, pilings, or other wood products that are treated or preserved with pesticidal compounds below the ordinary high water (OHW) or as part of an in-water or over-water structure, except as described below:

Store treated wood shipped to the Project out of contact with standing water and wet soil, and protected from precipitation.

Visually inspect each load and piece of treated wood. Reject for use in or above aquatic environments if visible residues, bleeding of preservative, preservative-saturated sawdust, contaminated soil, or other matter is present.

Use pre-fabrication to the extent feasible. When field fabrication is necessary, all cutting and drilling of treated wood, and field preservative treatment of wood exposed by cutting and drilling, shall occur above the OHW. Use tarps, plastic tubs, or similar devices to contain the bulk of any fabrication debris, and wipe off any excess field preservative.

All treated wood structures, including pilings, shall have design features to avoid or minimize impacts and abrasion by livestock, pedestrians, vehicles, vessels, and floats.

Treated wood may be used to construct a bridge, over-water structure or an in-water structure, with the exception of the work containment system, provided that all surfaces exposed to leaching by precipitation, overtopping waves, or submersion are coated with a water-proof seal or barrier are maintained. Apply and contain coatings and paint-on field treatment to prevent contamination. Surfaces that are not exposed to precipitation or wave attack, such as parts of a timber bridge completely covered by the bridge deck, are exempt from this requirement.

During demolition of treated wood, ensure that no treated wood debris falls into the water. If treated wood debris does fall into the water, remove it immediately.

Store removed treated wood debris in appropriate dry storage areas, at least 150 feet away from the regulated work area.

(8) Floating Structures - Barge use is allowed only in the vicinity of the staging area and project site, as shown on sheets C01 and FB01 of the Plans.

When using a barge:

Barge decks must be watertight.

Connect modular barge systems structurally to produce a single, fixed deck.

Fit barge deck perimeters with watertight curbing sufficient to contain materials on the barge deck. If scuppers are present they will be plugged if deck containment is needed.

The Agency will need to approve any barge being used.

Before moving the barge to the Project Site, unless the barge is transported solely by water and entirely within the State, inspect the barge and ballast for invasive species to ensure that invasive species are not brought to the Project Site. Notify the Oregon State Marine Board if invasive species are found.

Before moving the barge to the Project Site, clean and pressure wash the barge deck.

Do not use impact hammers for spud placement.

Install and maintain containment measures to prevent barge surface runoff from flushing oil, fuel, or other contaminants into the water.

Secure all Equipment, portable toilet facilities, and containers with fuel, hazardous materials, or waste to the barge deck.

If the barge is equipped with a toilet facility, pump it out into an approved waste removal system when work requiring a barge is complete, or as often as is necessary. Move temporary toilet facilities to shore before pumping them out.

Equipment or fuels must have their own primary containment on the barge.

If a fuel container is used on the barge, provide a double-walled fuel container and place an absorbent containment boom around the container when it is on the barge.

Remove hand carried fuel containers from the barge at the end of each work shift unless containers are secured to the barge and stored within a secondary containment vessel of sufficient capacity to hold the entire volume of liquid available.

Refill hand carried fuel containers within a secondary containment vessel of sufficient capacity to hold the entire volume of liquid available.

Provide individual containment for each piece of Equipment on the barge, including containment pans or absorbent booms to locally contain minor spills.

Remove waste material from the barge at least every 3 working Days and:

Before any pause in work that is longer than 1 Day; or Before reaching the calculated safe load weight of the barge according to Section 00253.

(9) Injured Fish Notification - If a dead or injured fish is found in the project area, immediately notify the Agency. If the injured fish is in a location where further injury or stress may take place, attempt to move the fish to a safer location, if one is available, near the capture site while keeping the fish in the water and reducing its stress as much as possible. Do not disturb the fish after it has been moved. If the fish is dead or dies while being captured or moved, save the fish and any tags. The Agency will notify appropriate regulatory agencies about the injured or dead fish and provide additional direction to the Contractor.

00290.36(a) Migratory Birds ‑ Add the following to the end of this subsection:

Do not disturb migratory bird nesting habitat (shrubs, trees, and structures), or clear vegetation from March 1 to September 1 of each year without prior written approval from the Engineer. Notify the Engineer, in writing, a minimum of 10 Calendar Days prior to starting activities that could harm nesting birds.

(1) Bird Management - Bird management activities to comply with the Migratory Bird Treaty Act (16 U.S.C. 703 712) will be performed by the Agency. Ensure that the Agency and its permitted agents have access to the project area, as needed to prevent migratory bird nesting. Nesting prevention may include daily bird harassment and the installation and maintenance of devices that exclude birds.

Do not disturb migratory bird nesting habitats (shrubs, trees, and structures), or clear vegetation from March 1 to September 1 of each calendar year without prior written approval from the Engineer. Notify the Engineer, in writing, a minimum of 10 Calendar Days prior to starting activities that could harm nesting birds.

00290.41 Protection of Waters of the U.S. or State - Add the following to the end of this subsection:

Permits have been obtained for this project from the US Army Corps of Engineers (Corps) and the Department of State Lands (DSL). Keep a copy of Corps and DSL permits at the project site during construction. Changes to the project that may increase the amount of fill placed or material removed in waters of the U.S. or State, or the acreage of waters impacted are not authorized. The following waters of the U.S. or State are present and have been determined to be unavoidable as indicated in Table 00290-2:

Table 00290-2

(cu yds.)

Fill Volume (Cu yds)

00290.42 Work Containment Plan - A Work Containment Plan (WCP) is required on this Project for barge work activity.

Develop and submit a WCP for approval at least 28 Calendar Days prior to mobilization for barge work activity. Maintain a copy of the WCP on the Project Site at all times during construction, readily available to employees and inspectors. Ensure that all employees comply with the provisions of the WCP. Design the WCP to avoid or minimize disturbance to protected features (sensitive cultural or natural resources, regulated work areas, aquatic life or habitat in regulated work areas) related to Contractor operations.

Before developing the WCP, meet with Agency to review the Contractor’s activities that require the WCP to ensure that all parties understand the locations of protected features to be avoided and the measures needed to avoid and protect them.

Notify the Engineer at least 10 Calendar Days before beginning work access or containment construction activities.

The Agency reserves the right to stop Work and require the Contractor to change the WCP methods and Equipment before any additional Contract Work, at no additional cost to the Agency, if and when, in the opinion of the Agency, such methods jeopardize sensitive cultural or natural resources, regulated work areas, or aquatic life or habitat in regulated work areas.

The WCP shall identify how the Contractor's construction operations will protect regulated features during mobilization, construction, maintenance, and demolition. Include a narrative describing compliance with Section 00290 as related to construction, operation, and demolition activities specified in Section 00253.

Design, construct, maintain, and remove temporary work access and containment systems according to Section 00253.

00290.90 Payment - Add the following paragraph(s) to the end of this subsection:

The work containment plan will be paid for at the Contract lump sum amount for the item "Work Containment Plan".

Payment will be payment in full for furnishing all Materials, Equipment, labor, and Incidentals necessary to complete the Work as specified. Payment includes providing and updating the Work Containment Plan.

The accepted quantities of turbidity monitoring will be paid for at the Contract lump sum amount for the item "Turbidity Monitoring".

Payment for turbidity monitoring 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.

SECTION 00320 - CLEARING AND GRUBBING

Comply with Section 00320 of the Standard Specifications.

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…