00014186_Att B_Special Provisions.pdf

Attachment B – Special Provisions

These 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/2024_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.

TABLE OF CONTENTS FOR SPECIAL PROVISIONS

SECTION 00210 - MOBILIZATION

SECTION 00220 - ACCOMMODATIONS FOR PUBLIC TRAFFIC

SECTION 00221 - COMMON PROVISIONS FOR WORK ZONE TRAFFIC

CONTROL

SECTION 00222 – TEMPORARY TRAFFIC CONTROL SIGNS

SECTION 00223 - WORK ZONE TRAFFIC CONTROL LABOR AND VEHICLES

SECTION 00224 - TEMPORARY TRAFFIC CHANNELIZING DEVICES

SECTION 00226 - TEMPORARY ROADSIDE BARRIERS AND IMPACT

ATTENUATORS

SECTION 00228 - TEMPORARY PEDESTRIAN AND BICYCLIST ROUTING

SECTION 00253 - TEMPORARY WORK ACCESS AND CONTAINMENT

SECTION 00255 - TEMPORARY SUPPORT SYSTEM

SECTION 00290 - ENVIRONMENTAL PROTECTION

SECTION 00560 - STRUCTURAL STEEL BRIDGES

SECTION 00570 - TIMBER STRUCTURES

SECTION 00594 - PREPARING AND COATING METAL STRUCTURES

SECTION 00598 – TIMBER PILE AND BRACE REPLACEMENT

SECTION 02560 - FASTENERS

https://www.oregon.gov/odot/Business/Specs/2024_STANDARD_SPECIFICATIONS.pdf

SPECIAL PROVISIONS

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 Warrenton-Astoria Highway (US101B) when allowed, shown, or directed during the following periods of time:

Single Lane Closures – One Traffic Lane on the Warrenton-Astoria Highway (US101B) may be closed during the following times:

• Daily, Monday through Friday, between 9:00 a.m. and 4:00 p.m.

Add the following subsection:

00220.40(f) Limited Duration Road Closure - The Contractor will be permitted to close all Traffic Lanes for bridge work on the Warrenton-Astoria Highway (US101B) for (4) Calendar Days to complete the Cap replacements for Bents 5, 11, 13, 17, when allowed, shown, or directed during the following periods of time except as specified in 00220.40(e)(2):

• Daily, Monday through Friday, between 9:00 a.m. and 4:00 p.m.

Do not close the road until all Materials and Equipment are on hand or guaranteed to be delivered so that the Work can be done in an efficient manner with a minimum period of road closure.

The road closure will not be allowed until the area and the detour route are signed according to the TCP and the requirements of Section 00221 and Section 00222.

Add the following subsection:

00220.45 Load Restrictions on Bridges -

For Structure(s) No.(s) BR00330, 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:

00221.06 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 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.

• At least ten Calendar Days prior to the start of work, place a “SIDEWALK OPEN” (CW11-3) sign in advance of each end of the Work Area. Locate the sign so it is legible from the nearest alternate pedestrian pathway facing incoming pedestrian traffic. The sign may be mounted between the panels of a Type II barricade, or on a single-post

TSS. Do not place the sign or support such that it narrows the pedestrian pathway to a width less than 4 feet.

• Before starting work, place pedestrian-specific TCM as shown in the TCP, or as directed. Maintain “SIDEWALK OPEN” (CW11-3) signs while work is affecting the pedestrian pathway.

• Place a “PEDESTRIANS ON ROADWAY” (CW11-2) sign at the beginning of each end of the Work Area, facing incoming traffic as shown, or as directed.

• Install two sign flag boards, as shown on the Standard Drawings, above the following detour and road closed advance warning signs, where applicable:

• "DETOUR AHEAD", "DETOUR XXXX FT", "DETOUR X/X MILE" (W20-2) signs.

• "ROAD CLOSED AHEAD", "ROAD CLOSED XXXX FT", "ROAD CLOSED X/X

MILE" (W20-3) signs.

• When construction requires bicycles to use the Traffic Lanes on Structures, install a

"Bicycle ON ROADWAY" (CW11-1) symbol sign according to "Sign Spacing A", from the "TRAFFIC CONTROL DEVICES SPACING TABLE" shown on the Standard Drawings, in advance of the Structure or the initial point where the bicycle facility is impacted by construction. Keep the signs in place until completion of the bikeway final surface.

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

• At least seven Calendar Days before the Bridge closure, place one or more PCMS displaying the following message as shown, or as directed:

Panel 1 Panel 2 (Name/# of highway) CLOSURE (Location) (Time Frame) CLOSURE (Time Frame)

00222.90 Payment -

Add the following to the end of this subsection:

Payment will be made for not more than one set of Work Area signs. All additional sets of Work Area signs will be at no additional cost to the Agency.

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:

00226.43 Truck Mounted Attenuator – Replace the paragraph that begins “When workers or construction Equipment…” with the following paragraphs:

Use a truck mounted impact attenuator (TMA), when workers or construction Equipment are exposed to Public Traffic on a Freeway or Multi-Lane Highway and are not located behind a rigid barrier system, as follows unless otherwise shown or directed:

• Each Shoulder or each lane closure where the preconstruction posted speed is 45 mph or more.

• Each lane closure, when Bridge Work on the Warrenton-Astoria Highway is occurring in the Traffic Lane, where the preconstruction posted speed is 40 mph or less.

Place the TMA in advance of the exposed workers or Equipment, located as shown in the TMA Support Vehicle Placement tables, or as directed. If the TMA is not available when the Work requires its use, postpone the Work until the TMA is available.

SECTION 00228 - TEMPORARY PEDESTRIAN AND BICYCLIST ROUTING

Comply with Section 00228 of the Standard Specifications.

SECTION 00253 - TEMPORARY WORK ACCESS AND CONTAINMENT

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

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

On Structure No. 00330, provide temporary work access, containment and barges systems for Bents 5, 11, 13, 17 & 39 on spans 4 & 5, 10 & 11, 12 & 13,16 & 17 and 38 & 39.

00253.03 (a) Work Access Submittals - Add the following bullet to the end of the bulleted list:

• Attach the Work Containment Plan required under 00290.42 as part of the work access and containment system submittal.

00253.03 (b) Work Containment Submittals - Add the following to the end of this subsection:

Submit a wastewater containment and disposal plan detailing all provisions for containment, collection, and disposal of wastewater and related contaminants. Include measures to manage runoff and contaminants from work access and containment system, as well as methods to ensure wastewater does not discharge to nearby waterways or sensitive environmental areas. Specify Equipment and Materials to capture wastewater at its source, temporary holding or filtration systems, and methods for transporting and properly disposing of collected wastewater according to applicable environmental regulations and permits.

Provide a comprehensive debris containment and disposal plan outlining the Equipment, Materials, and construction methods used to prevent the escape of construction debris from construction operations. Include details on containment barriers, tarps, screens, or netting sufficient to protect adjacent Roadways, traffic, pedestrians, and environmentally sensitive areas from flying or falling debris. Identify clear methods for collecting, handling, storing, and properly disposing of debris according to environmental and safety regulations.

00253.05 Containment Requirements - Add the following to the end of this subsection:

Furnish a containment and collection system designed to prevent the release of debris or contaminants generated during construction. Furnish a system sufficient to protect adjacent Roadways, traffic, pedestrians, and environmentally sensitive areas from flying or falling debris. Contain concrete fragments, demolition debris, paint chips, blast media, and other construction-related byproducts with the system.

Implement the containment system according to the Work Containment Plan specified in

00290.42. Conduct regular inspections and promptly repair any breaches or failures to maintain continuous containment throughout construction activities. Remove collected debris regularly, store it securely, and dispose of it according to applicable environmental and safety regulations.

Add the following subsection:

00253.09 Work Platform, Scaffolding and Containment Structural Design Requirements -

Design work platforms, scaffolding, and containment Structures for dead load, live load, and wind load. Obtain basic wind speed as shown on Standard Drawing TM671 and applied in the most critical direction. For Structures with fundamental frequency less than 1 Hz, design for wind loads accounting for structural dynamic effects.

Provide designs with a factor of safety of at least six for wire ropes and connecting hardware and at least four for all other components for containment Structure and work platform components.

Verify structural adequacy of the Bridge with added loading from containment Structures and work platforms using AASHTO Standard Specifications for Highway Bridges, Group II, III, V, and VI load combinations.

(a) High Wind Events - If removal of containment walls is used to comply with projected area limits at high wind speed, removal is required when actual wind speed or predicted wind speed exceeds allowable limits. 24-hour weather watch is required during non-work times. Predicted wind speeds are obtained from:

forecast.weather.gov/MapClick.php?lat=46.15694&lon=- 123.88250&unit=0&lg=english&FcstType=graphical

Actual wind speeds are measured using a handheld wind speed measuring instrument with certified accuracy 3% of reading.

00253.44 Marine Traffic Restrictions -

Bridge No. 00330 may not be closed to marine traffic.

Add the following subsection:

00253.46 Loads Placed on Structure Roadway, Shoulders, and Sidewalks - When a Traffic Lane, Shoulder or sidewalk is closed the following loading may be applied to the Structure in addition to the loading identified in 00253.09:

When a Traffic Lane or Shoulder closures are allowed on Structure No. 00330:

• Equipment, vehicles, and Materials may be placed in the closed:

• Traffic Lane

• Shoulder

• Sidewalk

• Equipment, vehicles, and Materials may NOT be placed in or on:

• Active Traffic Lane

• No more than one vehicle operating under D.O.T. overload permit will be allowed within the closed area on each span of the Structure.

The combined effect of all loads in the closed area(s) will be limited to

• Bending moment and maximum shear produced by one lane of H-15 on each span of the Structure

SECTION 00255 - TEMPORARY SUPPORT SYSTEM

Section 00255, which is not a Standard Specification, is included in this Project by Special Provision.

Description

00255.00 Scope - This Work consists of designing, providing, constructing, maintaining, and removing a temporary support system to accommodate replacement and repair of pile 1, Bent 39, of Structure No. 00330.

Materials

00255.10 Material - Provide materials for the temporary support system meeting the requirements of the applicable Sections of Part 00500.

Construction

00255.40 Design - Provide stamped working drawings and calculations of the temporary support system according to 00150.35. A design that damages existing bridge members must address the Contractors proposed repair and is subject to Engineer approval.

Design the temporary support system according to AASHTO Guide Design Specifications for Bridge Temporary Works.

00255.41 Design Loads - Design temporary support system to support all bridge dead loads, equipment, material, tools and personnel necessary to perform, complete and inspect the work as shown in the plans. Restrict traffic on the affected spans unless the temporary support system is designed to accommodate traffic live load.

Design the temporary support system according to the applicable requirements of OSHA and Oregon OSHA.

Design the temporary support system in a manner that does not overstress the existing bridge's structural members. Design the temporary support system and check existing bridge members for structural adequacy if the temporary support system is vertically supported from the existing bridge.

00255.43 Construction - Construct the temporary support system according to the reviewed plans of 00255.40 and 00255.41.

Construct the temporary support system according to AASHTO Construction Hand Book for Bridge Temporary Works.

Construct the temporary support systems to satisfy all the requirements of applicable permitting agencies.

Provide temporary bracing of existing members as needed to provide stability and control of existing structure geometry while the existing bracing system is disconnected.

00255.44 Acceptance - The temporary support system will be accepted for use when constructed according to these specified requirements and the Engineer determines the temporary support system is adequate.

Maintenance

00255.60 Maintenance - Maintain the temporary support system to the satisfaction of the Engineer for the duration of its use.

Finishing and Cleaning Up

00255.70 Removal - When the repair and replacement work is complete and the temporary support system is no longer needed, do the following to the satisfaction of the Engineer:

• Remove the platforms, supports, anchorages, and all appurtenances according to Section 00310.

• Fill all holes and repair all damage caused by the construction of the temporary support system.

• Apply a final surface finish which matches the color and texture of the existing concrete.

Measurement

00255.80 Measurement - No measurement of quantities will be made for Work performed under this Section.

Payment

00255.90 Payment - The accepted quantities of Work performed under this Section will be paid for at the Contract lump sum amount for the item "Temporary Support System".

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 designing, constructing, maintaining and removing temporary support system and for repairing the existing structure during removal as needed.

SECTION 00290 - ENVIRONMENTAL PROTECTION

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

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.

• 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.

• 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 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.

00290.30(a)(8) Meter Turbidity Monitoring - In addition to the requirements of 00280.62(c) to monitor the receiving stream to identify water quality issues, during Work in waters of the State or U.S., implement best management practices (BMPs) to minimize turbidity, and monitor turbidity using a turbidity meter that has been maintained and calibrated according to the manufacturer’s specifications and according to the following:

• Measure upcurrent and downcurrent turbidity at two-hour intervals 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 work area.

• Take downcurrent samples at a location approximately 100 feet from the 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 upgrade BMPs, 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 work in water and repair or upgrade BMPs. Resume work in water 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 upgrade BMPs 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 work in water and repair or upgrade BMPs. Resume work in water 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 work in water, repair or upgrade BMPs, and inform the Engineer. Resume work in water only after the downcurrent reading is less than 5 NTU above the upcurrent NTU, as determined by continued readings made no more than two hours apart.

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

• Meter turbidity monitoring may be temporarily suspended if all of the following conditions are met:

• Temporary water management and work area isolation measures have been installed and are functioning as designed.

• The Engineer, after consultation with DEQ, has authorized the suspension of turbidity monitoring. The Engineer will provide information to be documented on the turbidity monitoring form, including the date of the DEQ authorization and the name of the DEQ employee providing the authorization.

• Resume the turbidity monitoring protocol if Work during a temporary suspension of meter turbidity monitoring causes a release of a visible turbidity plume.

00290.32 Noise Control - Add the following paragraph(s) to the end of this subsection:

Review City of Astoria Code Chapter 5.025 Section 7 and Clatsop County Code Chapter 8.12 which describe noise control regulations. Obtain and be responsible for necessary permits described in City of Astoria Code Chapter 5.025 Section 7 and Clatsop County Code Chapter

8.12 . Comply with the applicable noise control requirements for Project Work.

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 1.90 (‘88NAVD) feet elevation.

Perform work within the regulated work area only during the in-water work period. The in-water work period is listed in Attachment D – Potential Work Dates and Times.

The total volume of material filled or discharged into waters of the State and waters of the U.S. shall not exceed 1 cubic yard.

The total volume of material excavated from the waters of the State and waters of the U.S.

shall not exceed 0 cubic yards.

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.

• Install steel piles greater than 24 inches in diameter or H-pile larger than designation HP 24 within the regulated work area.

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) 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.

(3) 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.

(4) 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.

(5) 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.

(6) Floating Structures - The following types of over-water or in-water structures are not allowed:

• boat house

• boat ramp made of asphalt

• buoy or float in an active anchorage or fleeting area

• covered moorage

• floating storage unit

• houseboat

• marine

• pier

• non-water related facilities (including staging areas) inside riparian management areas

• any other over-water structure more than 6-feet wide unless otherwise approved in writing by appropriate regulatory agencies through the Engineer

The following conditions apply to over-water or in-water structures:

• Concrete boat ramps that consist of pre-cast concrete slabs below the ordinary high water elevation, and higher elevation portions that are completed in the dry so that no wet concrete that has cured less than 24 hours is allowed to contact any wetland or waters of the State or waters of the U.S.

• Rock may be used to construct a boat ramp footing, or other protection necessary to prevent scouring, down-cutting, or failure of the boat ramp, provided that the rock does not extend further than 4 feet from the edge of the ramp in any direction.

• Any replacement roof, wall, or garage door for covered moorages and boat houses must be made of translucent materials or skylights. In addition, each side, except the door, of the boat house shall have windows at least 4 feet wide installed the length of the boat house, subject to breaks only for structural support.

• An existing marina may be modified within the existing footprint of the moorage, or in the water more than 50 feet from the shoreline and more than 20 feet deep, except do not place structures in areas that support aquatic vegetation or areas where boat operations may damage aquatic vegetation.

• Fit all pilings, mooring buoys, and navigational aids with devices to prevent perching by piscivorous birds.

• Permanently encapsulate all synthetic flotation material to prevent breakup into small pieces and dispersal in water.

• Install small temporary floats less than 7 Calendar Days before a scheduled event, remove them 5 Days after a scheduled event is concluded, and do not leave them in place longer than 21 Calendar Days.

• Install mooring buoys and temporary floats (for example: shellfish traps) more than 300 feet from native submerged aquatic vegetation, more than 50 feet from the shoreline, and in water deeper than 20 feet deep at all times, or as necessary to ensure that gear does not ground out unnecessarily, and boats do not prop wash the bottom.

• Prohibit barge use in the navigation channel, as shown on sheet J01 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.

• 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.

(7) Temporary Power, Communication and Water Lines - Before installing temporary power, communication, or water lines across streams or bodies of water, submit a proposed plan to the Engineer for approval. Do not begin installation before receiving approval from the Engineer. Proposed plans for installation of temporary power, communication, and water lines and stream crossings shall utilize the following design methods in the listed order of priority:

1. Aerial lines, including lines hung from existing bridges.

2. Directional drilling, boring and jacking that spans the channel migration zone and any associated wetland.

3. Trenching, which is restricted to intermittent streams and may only be used when the stream is naturally dry. For all sections of trenches below the ordinary high water line, backfill with native material and cap with clean gravel suitable for fish use in the project area.

Align each crossing as perpendicular to the watercourse as possible. For drilled, bored, or jacked crossings, ensure that the line is below the total scour prism. Return any large wood displaced by trenching or plowing as nearly as possible to its original position, or otherwise arranged to restore habitat functions.

(8) 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:

(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

Impact Waters of the US or

State

Removal Volume (cu yds.)

Fill Volume Station

Duration of Impact

(Temporary

Area of impact

(Cu yds) or Permanent)

(Linear Feet)

Youngs Bay 0 1 Bent #39 permanent 1 – one pile

Add the following subsection:

00290.42 Work Containment Plan - A Work Containment Plan (WCP) is required on this Project for pile repair and pile cap replacement activities.

Develop and submit a WCP for approval at least 28 Calendar Days prior to mobilization for pile repair and pile cap replacement activities. 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.

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 00560 - STRUCTURAL STEEL BRIDGES

Comply with Section 00560 of the Standard Specifications modified as follows:

00560.00 Scope – add the end of the section:

Work also consists of fabrication of pile clamps and bracing connection details shown on the plans.

00560.04 Erection Plan - Replace this subsection, except for the subsection number and title, with the following:

Submit an erection plan with unstamped Working Drawings according to 00150.35 at least 21 Calendar Days before the start of the steel erection Work. Include the proposed erection method and the amount and character of Equipment to be used for review. Do not perform Work until approval has been obtained. This review does not relieve the Contractor of the responsibility for the safety of the method or Equipment, or from carrying out the Work in full according to the Plans and Specifications.

00560.29(d)(2)(c.) Inspection – Replace Table 00560-3 with the following table:

Table 00560-3 Nut Rotation from Snug-Tight Condition 1,2

Disposition of Outer Faces of Bolted Parts

Bolt Length3 (underside of head to end of bolt)

Both faces normal to bolt axis

One face normal to bolt axis and other sloped not more than 1:20

(beveled washer not used)

Both Faces sloped not more than 1:20 from normal to bolt axis (beveled washer not used)

Up to and including 4 diameters

1/3 turn 1/2 turn 2/3 turn

Over 4 diameters but not exceeding

8 diameters 1/2 turn 2/3 turn 5/6 turn

Over 8 diameters but not exceeding

12 diameters 2/3 turn 5/6 turn 1 turn

1 Nut rotation is relative to bolt, regardless of the element (nut or bolt) being turned.

For all required nut rotations, the tolerance is plus 60 degrees (1/6 turn) and minus 0 degrees.

2 Applicable only to joints in which all material within the grip is steel.

3 No research has been performed by the Research Council on Structural Connections to establish the turn-of-nut procedure for bolt lengths exceeding 12 diameters. Therefore, the required rotation shall be determined by actual test in a suitable tension measuring device according to 00560.29(d)(2).

Add the following subsection

00560.47 Disposition of Pile Clamps and Friction Collar – The pile clamps and the friction collar detailed on the plans and fabricated for this project will be retained by the Agency and will be delivered to Dan McFadden, 503-738-5753, at 836 Avenue S Seaside Oregon 97138, in serviceable condition, after the project is completed.

00560.80 Measurement - Add the following to the end of this subsection:

The estimated quantity of structural steel is:

Structure Steel Type Quantity (Pound)

Bridge No. 00330 Structural Steel Maintenance 4200

Measurement of steel for pile repair and bracing associated with the pile repair will be paid for with bid items according to SP00598.80

Append to the end of 00560.90 Payment:

Payment for steel listed for pile repair and bracing associated with the pile repair will be paid for according to SP00598.90.

SECTION 00570 - TIMBER STRUCTURES

Comply with Section 00570 of the Standard Specifications modified as follows:

00570.00 Scope – Replace the first paragraph with the following paragraphs:

This work consists of furnishing and installing timber, plywood and glue-laminated timber in bridges and other timber structures as shown or directed. Timber and lumber will be identified as timber in this Section.

Also included is removing existing bent pile caps, installing new bent pile caps, and filling holes in the existing timber piles of Structure No. 00330.

00570.10 Materials - - Add the following item to the table:

Treated Plywood 02135

Add the following at the end of the subsection:

New timber pile caps installed at Structure No. 00330 will be S4S Douglas Fir, Select Structural Grade. Coat and pressure treat with ammoniacal copper zinc arsenate (ACZA) in accordance with Section 02190.

Timber plugs for filling holes in piles will be dry white oak dowels.

Sealant will be one of the following or an approved equal:

A. Marine 4200 Adhesive/Sealant by 3M B. Marine 930 Adhesive/Sealant by Bostik C. Sikaflex - 291 Adhesive/Sealant by Sika Corporation

00570.11 Metal Parts - Add the following to the end of this subsection:

Galvanized connectors are allowed on ACZA treated timber only when the timbers are kiln dried to 19 percent after treatment. If ACZA treated timber is not kiln dried, use stainless steel connectors only.

00570.47 Coating - Add the following to the end of this subsection:

Kiln dry all timber to 19% before coating. Timber bent cap surface must be clean, dry and sound, paint as soon as possible. No painting will be done immediately after a rain or during foggy weather. Knots and pitch streaks will be scraped, sanded and spot primed.

All nail holes or small opening will be caulked. Sand to remove any loose or deteriorated surface wood and to obtain a proper surface profile. Coating will conform to the following product characteristics and performance characteristics:

Product Characteristics:

Finish: High Gloss, 85+ Units @ 60 degree angle Color: Black Volume Solid: 50% + 2%, may vary by color Weight Solids: 63% + 2%, may vary by color VOC ( EPA Method 24) <420 g/L; 3.5 lb/gal

Performance Characteristics:

Test Name Test Method Results Abrasion Resistance ASTM D4060 54 grams Direct Resistance ASTM G14 80 lbs Dry Heat Resistance ASTM D2485 300° F (149° C), pain film yellow but remains protective and intact

Exterior Durability Excellent Flexibility ASTM D522 1/8 " bend Pencil Hardness ASTM D3363 2 - 4 H Reverse Impact Resistance ASTM G14 10 lbs Salt Fog Resistance…