900402 Specifications.pdf

C I T Y O F E U G E N E

EAST 24TH AVENUE,

HILYARD STREET &

ALDER STREET PAVING

BID NUMBER 8, JOB #900402

BID CLOSING: JUNE 5, 2025

2:00 P.M.

CONTRACT DOCUMENTS

AND

SPECIFICATIONS

CITY OF EUGENE

ENGINEERING DIVISION

PUBLIC WORKS DEPARTMENT

180 W. 8TH AVENUE, SUITE 200

EUGENE, OREGON 97401

(541) 682-5291

Standard Specifications – Updated 2/2025 Page 1

STANDARD SPECIFICATIONS AND STANDARD DRAWINGS

As of February 28, 2025 the 2024 Oregon Standard Specifications for Construction (Oregon Specifications) and the City of Eugene Standard Drawings, both as revised by Amendments #1, #2 and #3, have been adopted as the Standard Specifications and Standard Drawings for the City of Eugene in accordance with City Code section 7.085. Amendments #1, #2 and #3 are hereby made a part of the Standard Specifications and Standard Drawings of the City of Eugene as fully and completely as if it were set forth therein. The Standard Specifications, Standard Drawings and all Amendments may be examined on-line at https://www.eugene-or.gov/444.

SUPPLEMENTAL SPECIFICATIONS

The section, subsection and drawing numbers of the Supplemental Specifications correlate to the section and subsection numbers of the adopted Standard Specifications, which consist of the 2024 Oregon Standard Specifications and the General Conditions for Construction for the City of Eugene, and Standard Drawings.

00110.05(e) Reference to Websites

(ADD)

• American Traffic Safety Services Association (ATSSA) www.atssa.com

• City of Eugene Quality Assurance Program https://www.eugene-or.gov/444/Standard-Specifications-for-Construction

• City of Eugene Field Tested Materials Assurance Guide (FTMAG)

• City of Eugene Purchasing and City of Eugene Public Contracting Rules https://www.eugene-or.gov/108/Purchasing

• City of Eugene Standard Specifications for Construction

• City of Eugene Traffic Sign Manual https://www.eugene-or.gov/183/Traffic-Sign-Manual

• Equipment Watch https://equipmentwatch.com/

• ODOT Construction Section www.oregon.gov/odot/construction/pages/index.aspx

• ODOT Construction Section - Qualified Products List (QPL) www.oregon.gov/ODOT/Construction/Pages/Qualified-Products.aspx

• ODOT Estimating www.oregon.gov/ODOT/Business/Pages/Steel.aspx

• ODOT Traffic Control Plans Unit www.oregon.gov/ODOT/Engineering/Pages/Work-Zone.aspx

Standard Specifications – Updated 2/2025 Page 2

• ODOT Traffic Standards www.oregon.gov/ODOT/Engineering/Pages/Signals.aspx

• OregonBuys https://oregonbuys.gov/bso

• Oregon Legislative Counsel www.oregonlegislature.gov/lc

• Oregon Secretary of State: State Archives sos.oregon.gov/archives/Pages/default.aspx

2/14/2019

Supplemental MWBE, ESB, DBE Contract Provisions

1.0 Definitions

Directory of Certified Firms – A directory of firms certified as Minority/Women Business Enterprise (MWBE), Emerging Small Business (ESB), and Disadvantages Business Enterprise (DBE) is available electronically on the Office for Business Inclusions and Diversity (COBID) website http://www.oregon4biz.com/How-We-Can- Help/COBID/ (specific url is subject to change). The Directory is provided to the Contractor for use in identifying MWBE/ESB/DBE firms.

2.00 Contractor Payments to Subcontractors and Suppliers:

(a) Subcontractor-Related Records - The Contractor shall maintain records of all subcontracts or other agreements. Such records shall show the name and business address of each MWBE/ESB/DBE subcontractor or vendor and the total dollar amount actually paid to each MWBE/ESB/DBE subcontractor or vendor. Identify the COBID Certification status for each Subcontractor as shown in the Directory of Certified Firms.

(b) Paid Summary Reports - The Contractor shall submit the Subcontractor Utilization Monthly Report to the Agency certifying payments made to all of the following:

• All subcontractors

• DBE suppliers and service providers.

A copy of the Subcontractor Utilization Monthly Report is included in the Contract and a fillable PDF form is available on the Eugene Standard Specifications website (See 0110.05(e)). The Contractor shall submit the completed Subcontractor Utilization Monthly Report to the Agency via email to EIC@ci.eugene.or.us within 20 days of receipt of payment from the Agency for each month in which payments were made to each subcontractor, supplier or service provider. At the completion of the project, submit the form recapping the total amounts paid to each subcontractor, supplier, and service provider.

The Contractor shall require each subcontractor at every tier to comply with the requirement to submit the Subcontractor Utilization Monthly Report within 20 days of receipt of payment from its controlling contractor and provide a recap of the total amounts paid at the completion of the project or completion of their Work.

Forms shall be submitted to an email address provided to the Contractor at the Preconstruction Conference.

3.00 Remedies - Failure of any Contractor to meet the requirements cited in Section 2.00 constitutes a breach of contract for which the imposition of the following sanctions could occur:

• Temporarily withholding progress payments until the Contractor complies with these provisions through future performance.

• Permanently withholding payment for work already performed in a manner that constitutes a breach of contract.

• Suspension of work according to the Oregon Standard Specifications for Construction, subsections

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Special Provisions – Job #900402 1

SPECIAL PROVISIONS FOR

EAST 24TH AVENUE, HILYARD STREET & ALDER STREET PAVING

PROJECT #900402

PART 00100 – GENERAL CONDITIONS

00120.15 Examination of Work Site and Solicitation Documents; Consideration of

Conditions to be Encountered

(ADD) Inquiries regarding the plans, specifications, and contract documents shall be made to: Sean Kovensky – 541-735-5979 or skovensky@eugene-or.gov

00120.25 Subsurface Investigations

(ADD) A core and boring log from subsurface investigations is described below. This information only shows the conditions at the specific location of the core or boring.

The Agency does not guaranty nor take liability for the accuracy or correctness of the information. No additional payment will be made for Work in areas where surfacing or base materials do not match the logs or plans in either type or depth.

Street Name

Approx STA Offset

AC

thickness (inches)

AB

thickness (inches)

Subgrade Type

24th Ave 83+84 8’R 8.5 11.5 Gray clay 24th Ave 86+34 11’L 9.0 10.0 Silty clay 24th Ave 87+81 8’R 8.5 3.5 Silty clay 24th Ave 93+36 6’R 8.25 3.75 Gray clay 24th Ave 97+13 11’L 9.0 9.0 Gray clay 24th Ave 100+22 11’L 10.0 0 Hard Silt

Hilyard St 13+00 5’L 4.5 9.5 Clay Hilyard St 18+00 5’R 5.0 8.0 Silty sand Hilyard St 24+25 5’L 6.5 6.5 Brown clay Hilyard St 30+25 12’R 5.0 8.0 Gray clay Hilyard St 35+50 5’L 6.0 6.0 Gray clay Hilyard St 40+00 15’R 5.0 13.0 Gray clay Alder St 53+50 5’R 6.5 6.5 Gray clay Alder St 55+50 3’L 6.5 8.0 Gray clay Alder St 59+50 4’L 6.25 7.0 Gray clay

00120.40(e) Bid Guaranty

(REPLACE) A bid guaranty is not required for this project.

00140.00 Purpose of Contract

(ADD) (a) Scope of Work

The scope of work for this contract includes:

• Cold plane pavement removal of existing asphalt surfaces

Special Provisions – Job #900402 2

• Asphalt paving

• Roadway reconstruction and full depth reclamation

• Wastewater pipe repairs, storm water structure and pipe repairs

• Temporary pedestrian access and traffic control

• Construction of concrete sidewalk and curb ramps

• Multi-use path construction

• Lighting

• Traffic calming

• Traffic signal modification

• Striping/Signing

00150.50 Cooperation with Utilities

(ADD) (f) Utility Information:

This Project is located within the Oregon Utility Notification Center area which is a Utilities notification system for notifying owners of Utilities about Work being performed in the vicinity of their facilities. The Utilities notification system telephone number is 811 or 1-800-332-2344.

Utility Contact Person's

Name and Phone Number(s)

1. EWEB Water & Steam Ryan Nossaman 541-685-7685

2. EWEB Electrical (Distribution Engineering Tech) Brad Rudler 541-685-7334

3. Comcast Brian Klopp 541-228-1829 Gabe Norbury 541-731-1498

4. CenturyLink/ Lumen/ Quantum

(Const. Project Administrator) Roman Hernandez 541-636-7074 (Cable Maint. Supervisor) Matt Seeley 503-580-7857

5. Northwest Natural Gas Tom Lepley 971-376-1293 Brian Brown 541-214-6639

6. AT&T Local Facilities Dayla Kerwin 213-688-4219

7. AT&T Long Distance Fiber Dan McGeogh 425-896-9830

8. Zayo Fiber David Miner 503-710-6296 Don Aichlamyr (RBC) 503-586-3493

9. Hunter Communications Jason Robinson 541-799-1132

Special Provisions – Job #900402 3

00170.70 Insurance:

(d) Additional Insured

(ADD) Add the following to the list of parties to be listed as additional insured:

The Eugene Water and Electric Board and its officers and employees.

00170.72 Indemnity/Hold Harmless

(ADD) Add the following to the list of parties that the Contractor shall indemnify, defend and hold harmless:

The Eugene Water and Electric Board and its officers and employees.

00180.40 Limitations of Operations

(a) In General

(ADD)

• Hilyard St shall be constructed first; Alder St shall be constructed second; 24th Ave shall be constructed third; none of these three streets may be constructed concurrently. Friendly St may be constructed at any time and concurrently with Hilyard St, Alder St or 24th Ave. Completion of each street includes paving through toplift of asphalt concrete pavement.

• Curb ramps shall be constructed per the phasing plan included in the project plans. On each street, no more than one phase shall be constructed concurrently unless an unobstructed pedestrian access route conforming to standard drawings TM844 and TM844(A) is constructed and approved by the Engineer. Other project work or utility work shall not obstruct a continuous pedestrian access route around the work zone. Each complete phase may be constructed in any order.

• Completion of a curb ramp includes all landscape preparation Work including, but not limited to: grading, removing forms, removing concrete waste, backfilling edges, preparing and final grading lawn areas, applying a compost erosion blanket to disturbed areas, removing barricades and cones and installing bark mulch or lawn seed, and temporary or permanent pavement repairs on the pedestrian access route.

• Construct asphalt pavement repairs prior to placing wearing courses.

• Construct curb ramps, curbs, and concrete crossings prior to placing wearing courses. Permanent paving associated with curb ramp work may be completed with mainline paving if the temporary paving in front of the curb ramp is ADA compliant and the curb ramp is open for use.

(ADD) The following items of Work shall be constructed in the following order:

1. Manhole Adjustments

2. Permanent pavement markings

3. Traffic loop detectors

Special Provisions – Job #900402 4

(ADD) 00180.40(c) Specific Limitations - Limitations of operations specified in these Special Provisions include, but are not limited to, the following:

Limitations Subsection

Cooperation with Utilities ........................................... 00150.50 Limitations of Operations ...................................... 00180.40(a) Contract Time ....................................................... 00180.50(h) Limited Duration Road Closure ............................... 00220.40(f) Maintenance Under Traffic ........................................ 00620.43

00180.41 Project Work Schedules

(ADD) After the paragraph that begins "One of the following Type…" add the following paragraph:

In addition to the "look ahead" Project Work schedule, a Type A schedule as detailed in the Standard Specifications is required on this Contract.

00180.50 Contract Time to Complete Work

(Add) (h) Contract Time

Complete all Work to be done under the Contract, except for seeding establishment, not later than May 29, 2026.

00180.85(b) Liquidated Damages

(ADD) The liquidated damages for failure to complete the Work on time required by

00180.50(h) will be $2900 per Calendar Day*.

The liquidated damages for failure to complete the Work on time required by clauses in 00220.02 with explicit durations will be $400 per Calendar Day*.

clauses in 00220.40(f) with explicit durations will be $400 per Calendar Day*.

clauses in 00620.43 with explicit durations will be $400 per Calendar Day*.

Liquidated damages will be calculated separately and are additive.

* Calendar Day amounts are applicable when the Contract time is expressed on the Calendar Day, Work Day or fixed date basis.

Special Provisions – Job #900402 5

PART 00200 – TEMPORARY FEATURES AND APPURTENANCES

00220.02 Public Safety and Mobility

(a) General Requirements

(ADD) The following bulleted item(s) to the end of this subsection:

• Full road width shall be open other days the Contractor is not Working.

• In areas where surfacing is altered or removed from crosswalks, marked or unmarked, or sidewalks, resurface the areas with asphalt concrete or concrete in accordance to ADA standards each day if the areas are open to pedestrian or bicycle traffic.

• No curb ramp or sidewalk location shall be closed for more than 7 Calendar Days without written approval by the Engineer.

• When construction requires the closure of a sidewalk or curb ramp, set up traffic control according to standard drawings TM844 and TM844(A).

• When construction requires closure of a driveway, construct driveway one half at a time, plate driveway, or get verbal agreement from resident to close the driveway for no more than 7 calendar days.

00220.03 Work Zone Notifications

(c) Public Notice

(ADD) The following bulleted item(s) to the end of this subsection:

• Provide 5 business days prior notification to Lane Transit District (LTD) Operations office, 541-682-6199 for all activities which will affect their operations. Notify LTD on a daily basis of specific Work activities, location, and schedule.

• Provide 5 business days prior notification to Sanipac Dispatch office, (541)

736-3618 for all activities which will affect their operations. Upon request the contractor shall also notify Sanipac on a daily basis of specific Work activities, location, and schedule.

• Provide 5 business days prior notification to Royal Refuse Dispatch office,

(541) 688-5622 for all activities which will affect their operations. Upon request the contractor shall also notify Royal Refuse on a daily basis of specific Work activities, location, and schedule.

• Provide 5 business days prior notification to Lane Apex Dispatch office, (541)

607-2042 for all activities which will affect their operations. Upon request the contractor shall also notify Lane Apex on a daily basis of specific Work activities, location, and schedule.

• Provide 5 business days prior notification to the U.S. Postal Service (USPS),

(541) 341-3601 for all activities which will affect their operations. Upon request

Special Provisions – Job #900402 6 the contractor shall also notify USPS on a daily basis of specific Work activities, location, and schedule.

• Provide 5 business days prior notification to the Eugene 4J School District

Transportation Services, (541) 790-7474, for all activities which will affect their operations. Upon request the contractor shall also notify Eugene 4J School District on a daily basis of specific Work activities, location, and schedule.

00220.40 General Requirements

(ADD) (f) Limited Duration Road Closure - Completed portions of full depth reclamation

(FDR) base shall be closed to heavy equipment use until paved, except as needed to complete the paving. Open the street to local low-speed car and pickup traffic after work hours the same day, immediately following the application of curing material to give residents access to their property. Construct asphalt wedges if the grade of the FDR is higher or lower than the adjacent existing street or driveway grades by 2 or more inches. Construct wedges at 8:1 from existing driveway grades to the FDR base and at 50:1 from the existing pavement grade to the FDR base.

Sections of FDR shall not be opened to all traffic until paved with 6 inches of asphalt concrete. Sections of FDR shall be paved with a minimum of 6 inches of asphalt concrete within 8 Work Days of completion of compaction in 00643.44 and per the approved traffic control plan.

00221.02 General Requirements

(ADD) Submit requests for modifications to the operation of traffic signals in writing to the

Engineer 5 business days in advance.

00221.06 Traffic Control Plan

(DELETE) The first sentence.

(ADD) The Traffic Control Plan in the plan set has been approved by the Agency for use by the Contractor. It is the Contractor’s responsibility to modify this TCP as necessary to provide a complete TCP for the Contractor’s Work operation. To propose modifications to this plan, submit a detailed Work schedule showing stage construction, along with the TCP, in writing 5 Work Days before the pre-construction conference for approval. If, as determined by the Engineer, the TCP does not meet these requirements the TCP will be rejected, and no adjustment of Contract Time will be allowed.

00222.10 Temporary Signs

(ADD) (e) City Provided Special Information Signs - Signs shall be picked up and returned to Public Works Maintenance at 1820 Roosevelt Blvd during work days, 7:30 a.m. – 3:00 p.m. Call the project inspector 24 hours in advance to coordinate sign pick-ups and drop-offs.

Special Provisions – Job #900402 7

The City will provide the sign only; the City will not provide posts or other supports, hardware, or any other appurtenant items or associated Work.

00222.11 Sign Supports

(a) Wood Sign Posts

(ADD) Use wood sign posts for City Provided Special Information Signs.

00222.15 Temporary Electrical Signs

(ADD) (d) Proximity Actuated Audible Signs

Use Empco Model 400 ADA Audible Device or approved equivalent.

00222.40 Temporary Signs

(ADD) (f) City Provided and Special Signs

Install City Provided Special Information Signs 5 Work Days prior to commencement of any other Contract Work, except for placement of erosion control.

Locations of City Provided Special Information Signs are not shown on project plans and shall be located as directed.

Install the Agency-provided placard to the Special Information Signs within 5 Work Days following top lift paving.

00222.45(b) Portable Changeable Message Signs (PCMS)

(ADD) Install PCMS prior to commencement of any other Contract Work, with the exception of placement of erosion control or tree preservation measures. PCMS shall run continuously 24 hours a day for the duration of work or as directed.

Messages will be provided by the Engineer. Messages shall be changed as directed.

00222.45 Temporary Electrical Signs

(ADD) (e) Proximity Actuated Audible Signs

A Proximity Actuated Audible Sign shall be placed accompanying temporary pedestrian traffic control signs conveying the information that identifies the alternate pedestrian access route.

Mount at a height of 3 to 5 feet from the bottom of the sign to ground.

Provide a solar/battery power source.

Special Provisions – Job #900402 8

00222.65 Portable Electrical Signs

(REPLACE) When directed, repair or replace sequential arrow signs, radar speed signs, proximity actuated audible signs, and PCMS that are damaged or destroyed before continuing Work that requires use of the signs

00222.80(b) Unit Basis

(ADD) “Proximity Actuated Audible Signs” and “Portable Changeable Message Signs” will not be measured.

00222.90 Payment

(ADD) The accepted quantities of “City Provided Special Information Signs” will be paid at the Contract unit price, per each. Payment will be payment in full for installing City Provided Special Information Signs complete and includes adding provided placard to the sign face, removal, restoration and transportation to and from the location of installation, as directed by the Engineer. Amount paid for this item will be 50% upon initial installation of the sign and 50% upon removal of the sign and restoration of the site.

(ADD) Proximity Actuated Audible Signs are incidental to the “Temporary Pedestrian

Work Zone Traffic Control, Complete” pay item. No separate payment will be made for Proximity Actuated Audible Signs.

00228.13 Temporary Curb Ramps

(ADD) Temporary Pedestrian Ramps over paved surfaces shall be constructed with asphalt pavement. Temporary Pedestrian Routes over unpaved surfaces shall be constructed with 4 inches thick asphalt pavement over 1 inch thick aggregate base.

Temporary Pedestrian Ramps and Routes shall be constructed over a geotextile fabric to protect the underlying surface. The asphalt pavement and aggregate base will be compacted until a smooth and uniform surface is achieved with a cross slope no greater than 2%, a running slope no greater than 8.3% and a path width no less than 4 feet wide.

Contractor shall remove the temporary pedestrian ramps and route materials upon opening the sidewalk for pedestrian use. Restore the underlying area, as needed, to match pre-construction conditions or better.

00280.42 Stabilization

(b) Temporary Stabilization

(ADD) At the Contractor’s option, temporary stabilization may be accomplished by preparing the lawn areas shown on the plans and applying the seeding mulch according to Section 01035.

Special Provisions – Job #900402 9

00280.63 Sediment Removal

(ADD) Excess cement left within and along the edge of the work area as a result of the

FDR work shall be considered sediment and removed and disposed of immediately following the cement treatment work.

00280.91 Payment

Pay Item Unit of Measurement

(MODIFY) (h) Concrete Washout Facility ................................................. Lump Sum

(ADD) Item (h) includes maintaining, disposal, transporting and replacement of the

Concrete Washout Facility as needed.

PART 00300 – ROADWORK

00310.41 Removal Work

(c) Drainage Structures

(ADD) Furnish and install temporary plugs for the pipe connections to drainage structures before removal. Do not allow sediment or rock to enter the storm drain system.

00330.00 Scope

(ADD) Excavation and removal of excess material generated by the reclamation process and required to meet lines and grades shown in the plans will be considered General Excavation.

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

Perform all earthwork under this Section on the excavation basis.

00331.10 Materials

(ADD) Cement Treated Base…………………………………………….00651

00331.42 Backfill

(ADD) Areas of Full Depth Reclamation Base to be repaired under 00643.50 shall be backfilled with a plant-mixed cement treated base. The cement treated base will be treated with a cure seal and sanded per 00643.47.

Special Provisions – Job #900402 10

PART 00400 – DRAINAGE AND SEWERS

00490.10 Materials

(ADD) Inlet Grout Repair………………………………..02080.20

00490.46 Adjusting Manholes

(ADD) Lower all manholes below the pulverizing and mixing depth prior to performing

FDR work. Raise the manholes to finished grade following final resurfacing.

(c) Raising Tops of Manholes

(ADD) When adjusting wastewater and storm drain manholes to final grade, replace the frames and covers as directed. Approximate quantities of manhole frames and covers to be replaced are provided in the Bid Schedule. Locations and quantities of manhole frames and covers to be replaced may be modified as directed by the Engineer.

Aluminum frames and covers identified for removal and replacement shall be salvaged and will remain the property of the City of Eugene. The Contractor shall deliver salvaged aluminum frames and covers to City of Eugene Public Works Maintenance, 1820 Roosevelt Blvd., on normal Working days, between the hours of 7:30 a.m. and 2:00 p.m. The Contractor shall call 541-682-4838 one (1) business day prior to delivery to coordinate with City staff.

(d) Lowering Tops of Manholes (Minor Adjustment)

(ADD) To the bulleted list:

• Remove any concrete surround in its entirety prior to cold plane removal of pavement. Replace concrete surround with asphalt concrete pavement for full depth in accordance with Section 00748.

00490.48 Adjusting Boxes, Cleanout Lids and Similar Structures

(ADD) Lower all boxes, cleanout lids and similar structures below the pulverizing and mixing depth prior to performing FDR work. Raise all the structures to finished grade following final resurfacing.

00490.48 Adjusting Boxes, Cleanout Lids and Similar Structures

(ADD) Adjust water valve boxes in accordance with EWEB specifications and details attached.

(ADD) 00490.51 Inlet Grout Repair

Construct inlet grout repair by chipping out the exposed, damaged top surface as directed by the Engineer to expose firm concrete to a depth of at least 1”. Clean the new surface by brushing and moistening with water at the time of placing new

Special Provisions – Job #900402 11 grout. Finish the surface of the new grout to attain a uniform surface transition to existing concrete structure.

00490.80 Measurement

(ADD) The quantities of Inlet Grout Repair will be measured on the unit basis for each structure. Each structure will be counted as a single repair, regardless of how many small repairs are completed within the structure.

The quantities of Manhole Frame and Cover – Wastewater and Manhole Frame and Cover – Stormwater will be measured on the unit basis.

The quantities of Plug Pipe will be measured on the unit basis.

00490.90 Payment

Pay Item Unit of Measurement

(ADD) (p) Manhole Frame and Cover - Wastewater .................... Each

(q) Manhole Frame and Cover – Stormwater.................... Each

(r) Inlet Grout Repair ........................................................ Each

(s) Plug Pipe…………………………………………………..Each

Payment for items (a) and (d) shall be payment in full for all Work required at each location, including lowering, regardless of the number of separate operations performed.

Payment for items (p) and (q) are for material and procurement costs only.

Removal and replacement of manhole frames and lids shall be performed during the manhole adjustment operation and payment for this Work shall be included in the applicable bid item for adjustment of manholes.

Payment for item (r) includes all Work to access, clean, prep and repair the structure as directed.

All items include all labor, materials, and equipment to perform the work under the bid item unless otherwise specified.

PART 00600 - BASES

00620.40 Pavement Removal

(d) Pavement Removal Alternative

(DELETE) The fourth sentence, beginning “Longitudinal drop-offs of 1 inch…”

(ADD) Construct a wedge to transition longitudinal drop-offs of more than 2 inches. Traffic shall not be allowed to cross drop-offs of more than 2 inches until wedges are in place. At intersections, construct wedges at drop-offs of more than 1 inch. Wedges shall be constructed with Commercial Asphalt Concrete Pavement according to

Special Provisions – Job #900402 12

00740. Millings from cold plane pavement removal shall not be used to construct these transitions.

00620.43 Maintenance Under Traffic

(DELETE) Areas of Cold Plane Pavement Removal greater than 2” deep shall be paved back to within 2” of finished grade within the same Work day as the cold plane pavement removal. All other cold plane depths 2 inches or less shall be paved within 5 Work Days of cold plane operations.

(ADD) Areas of Cold Plane Pavement Removal on 24th Ave shall be paved back to within

2” of finished grade within the same Work day as the cold plane pavement removal.

Areas of Cold Plane Pavement Removal on Alder St shall be paved back to finished grade within three Work days from written notice from Engineer to proceed with paving operation. Engineer shall be provided two Work days after cold plane pavement removal to identify additional asphalt pavement repair areas.

(ADD) Section 00643 – Full Depth Reclamation Base

Description

00643.00 Scope – The Full Depth Reclamation Base Work consists of constructing a reclaimed cement treated base by pulverizing and mixing the existing asphalt concrete pavement, base rock and subgrade materials with cementitious materials and water, and compacting and grading the treated base to the lines, grades, thicknesses and cross sections required.

00643.01 Abbreviations:

FDR – Full Depth Reclamation

Materials

00643.10 Materials:

a) Pulverized Material - The reclaimed pulverized material shall conform to the gradation in the table below.

Sieve Size % Passing

3 inch 100 1 ½ inch 95 – 100 1 inch 90 – 100 #4 55 – 75

b) Cementitious Materials – The cementitious materials shall be a blend of slag or fly ash modifiers with Portland Cement. Furnish slag (GGBFS) or fly ash modifiers conforming to the requirements of Section 02030. Furnish Portland Cement Type I or II conforming to the requirements of Section 02010.

c) Fine Aggregate (Sand) – Furnish fine aggregate meeting the requirements of 02690.30 for use in the cement slurry. The fine aggregate shall be in a saturated surface dry

Special Provisions – Job #900402 13

(SSD) moisture condition as determined by AASHTO T 84 and AASHTO T 85.

d) Hydration Stabilizing Admixture – Furnish an admixture to retard set time of cement slurry meeting the requirements of Section 02040.

e) Water – Furnish water for mixing or curing meeting the requirements of Section 02020.

f) Emulsified Asphalt Cement for Cure Seal – Furnish CSS-1 emulsified asphalt cement for FDR base cure seal meeting the requirements of Section 00730.

00643.11 Cement Slurry Mix Design – Provide cement slurry that is a workable mixture, moderately stiff, uniform in composition and consistency and having the following properties:

• Cementitious Materials (Cement) consist of Portland cement and Modifier blended at a

1:1 ratio.

• Cementitious Materials and SSD sand blended at a 1:1 ratio.

• W/C ratio of 0.40.

• Sufficient hydration stabilizing admixture to provide a 90 minute delay in slurry set time.

00643.12 Mix Design – The mix design establishes the depth of the completed FDR, the amount of added materials, the amount of Portland Cement stabilizing agent (cement) to be incorporated into the pulverized mixed material and the maximum dry density and optimum moisture content.

The mix design is based on the materials that are found on the project site.

The Engineer may adjust the cement slurry application rate based on observations and daily field samples.

The Mix Design for Hilyard St shall be as follows:

• Initial pulverization and mixing depth: 22 inches

• Cementitious Material and Sand Slurry Content: 6.0% +/- 0.50% (each)

• Finished FDR compacted depth: 14 inches

• Predominate soil type: Reclaimed aggregate base, ACP, clay

The percentage of cement and sand slurry shall be based on the dry weight of compacted reclaimed material.

00643.15 Quality Control – Quality control sampling and testing are the responsibility of the contractor. Quality control test results shall be made available to the Engineer.

00643.16 Acceptance – Acceptance of the cement treated base will be based on testing by the Engineer.

The Engineer will verify the uniformity and depth of placement. When it is determined that the treatment depth is not being obtained, discontinue all FDR operations. Do not resume until corrective measures have been taken. If the depth of the FDR material is greater than 1-inch deficient, the Contractor shall remove the deficient material and replace it with new material that meets the specified depth. The cost of removal and replacement shall be incidental.

Special Provisions – Job #900402 14

When it is determined that specified density is not being obtained, discontinue all FDR placement operations. Do not resume until corrective measures approved by the Engineer have been taken.

Equipment

00643.20 Pulverizing and Mixing Equipment - Furnish a self-propelled single-shaft or multiple-shaft pulverizer mixer machine specifically made for reclamation and capable of reclaiming the existing material to a minimum depth of 14 inches. The machine shall be equipped with automatic depth control and maintain a constant cutting depth and width. It shall be capable of pulverizing and mixing existing asphalt concrete, base rock and soil, injecting water at controlled rates and mixing cement into the reclaimed material to produce a homogeneous mixture. All pulverizing and mixing shall be performed with this machine. Agricultural disks or motor graders are not acceptable mixing equipment.

Pulverizing and mixing equipment shall be approved by the Engineer prior to use.

00643.22 Cement Slurry Spreading Equipment – Furnish cement slurry spreading equipment consisting of a self-propelled, tracked paving machine weighing a minimum 10,000 lbs and maximum 20,000 lbs with an adjustable screed capable of evenly spreading slurry to a specified thickness. The Contractor may propose an alternate method of spreading the cement slurry directly on the grade, provided that the Contractor can provide either equipment and/or personnel to rake or move the slurry to a consistent depth.

00643.23 Grading Equipment – Provide grading equipment capable of spreading the reclaimed material and striking if off to designated lines, grades and transverse slopes without segregation, dragging or fracturing of aggregate.

00643.24 Compaction Equipment – Provide self-propelled vibratory tamping foot and steel-wheel rollers capable of reversing without backlash. Tamping foot rollers shall have a minimum gross static weight of 12 tons and smooth-wheel rollers shall have a minimum gross static weight of at least 12 tons.

00643.25 Water Trucks – Provide a water truck with a maximum gross vehicle weight of 26,000 pounds to provide water used to keep the surface of the mixed material damp until the seal coat is applied.

00643.26 Asphalt Distributor – Provide an asphalt distributor to apply the FDR base cure seal coat complying with the requirements of Section 00730.

Labor

00643.30 Quality Control Personnel – Provide certified technicians in the following fields:

• CEBT

• CAGT

• CDT

Construction

00643.40 Seasonal and Temperature Limitations – The Contractor shall not perform reclaiming operations when the weather conditions are such that proper mixing, shaping, and

Special Provisions – Job #900402 15 compacting of the reclaimed material cannot be accomplished. In addition, no cement placement and mixing shall be performed when it is raining, or when wind causes the cement dust to become airborne.

00643.41 Pre-Reclamation Conference - Supervisory personnel of the Contractor, including any subcontractors who are to be involved in the reclamation Work, shall meet with the Engineer at a mutually agreed time to discuss methods of accomplishing the Work. A representative of the Contractor responsible for the quality control on the project shall also attend.

00643.43 Pulverizing and Mixing - Pulverize, mix and compact the reclaimed base material in a single lift.

(a) Initial pulverization, mixing, compacting and grading:

1. Pulverize and mix existing materials in-place to a depth of 22 inches on Hilyard St and to a uniformly graded consistency according to 00643.10 and 00643.12.

2. After initial pulverizing and mixing, grade and compact the material with sufficient effort to determine correct grade.

3. Excavate surplus material as necessary so that the finish grade, after final mixing, shaping and compaction, complies with the plans and specifications. Account for shrink/swell of material after addition of cement. Complete compaction after grading with a smooth wheel roller.

(b) Final mixing, compacting and grading:

1. Immediately prior to final mixing operations, apply the cement slurry to the reclaimed material at the specified rate that meets the mix design. The Engineer may vary the application rate of the cement slurry based on the aggregate and subgrade materials and mixture moisture content. The cement slurry shall be controlled within +/-0.50% of the target established by the mix design or as directed.

2. Cement slurry shall not be placed on the grade more than 400 feet in front of the mixing equipment. Do not allow vehicles to drive through the cement.

3. Begin final mixing as soon as possible after the cement has been spread, and continue until a homogeneous mixture of aggregate, soil, cement and water is achieved which meets the gradation, cement content and moisture content requirements throughout the full design depth and width and is free of soil clumps.

The Engineer may require multiple mixing passes to achieve a uniform and homogeneously mixed material. If multiple passes of the equipment are required, overlap each pass a minimum 6 inches.

4. The time from cement slurry batching until start of on-site mixing shall not exceed 90 minutes. If this time is exceeded, the Engineer may require the cement slurry be removed and disposed of. New cement slurry shall be applied at no additional cost to the City when the Contractor is ready to start the mixing Work.

5. Cement slurry application, mixing, spreading, compacting, shaping and finishing shall be continuous and completed within 3 hours from the start of mixing. The timing of

Special Provisions – Job #900402 16 the cement slurry application and mixing shall be coordinated to allow compaction, shaping and finishing of the treated material to occur prior to the end of the allowable 3 hour period. Sections of the FDR Work that have not been completely shaped, compacted and finished within 3 hours of mixing the reclaimed material with cement, shall be re-treated with cement at a rate directed by the Engineer, and re-mixed, re-shaped and re-compacted to the requirements of this Section.

6. Any cement slurry treated material that has not been compacted and graded shall not be left undisturbed for longer than 30 minutes. If this time limit is exceeded, the Engineer may require the material to be remixed with cement slurry to allow for compaction and/or grading and to correct for partial cement hydration.

7. Following mixing in the cement slurry, the surface of the treated material shall be kept continuously moist using a fine water spray until completion of the curing seal application.

Failure to comply with any of the above specifications is cause for the Engineer to order any or all portions of the Work to stop until the Work is brought into compliance or to repeat the treatment of the material at no additional cost to the Agency.

00643.44 Compaction - Begin both the initial and final compaction Work specified in 00643.43 by compacting with a tamping foot roller operated in non-vibratory mode and continuing until the roller pads walk out of the reclaimed mix. Discontinue any type of rolling resulting in cracking, movement, or other types of distress until such time that the problem can be resolved. If there is a significant change in mix proportions, weather conditions, or other controlling factors, the Engineer will require construction of test strips to check target density.

Do not begin any grading of the compacted material until the roller pads have walked out of the reclaimed mix. Should grading occur prior to the roller pads completely walking out, the Engineer will stop work except compaction work with the taming foot roller until satisfied that the roller has completely walked out of the material.

Immediately following compaction with the tamping foot roller, cut to line, grade and cross-slope.

Following grading, use a smooth drum roller, operated in non-vibratory mode, to complete compaction and remove roller marks. As compaction nears completion, if necessary or as required by the Engineer, lightly scarify or broom-drag to remove imprints left by equipment or to prevent compaction planes. Continued compaction until uniform and specified density is obtained.

Compaction and finishing shall be done in such a manner as to produce a dense surface free of compaction planes, cracks, ridges, or loose material.

Test in-place materials for compaction. The density of the compacted FDR base shall be a minimum of 98% of the maximum density according to AASHTO T99, Method C corrected for oversize per AASHTO T224, 1996 Version.

00643.45 Shaping and Surface Tolerances - The grade of the compacted FDR base shall be finished to within a 1/2 inch of the lines and grades shown on the plans or as directed by the Engineer. Surface smoothness shall comply with 00641.45. Shape to achieve planned profile and cross slope, or as directed, and to fill or remove the tamping foot roller marks. If the surface does not meet the specified grade tolerance and smoothness, pre-level the FDR surface prior to paving with ACP in accordance with 00744.43(c).

Special Provisions – Job #900402 17

00643.47 Curing:

a. After completion of final compaction and grading of the FDR base, seal the surface for curing with CSS-1 asphalt cement at a uniform application rate of 0.20-0.25 gallons per square yard to create a sealing membrane. Apply the CSS-1 as soon as possible, but not later than 4 hours after mixing the reclaimed material with cement slurry. The FDR base surface shall be free of all loose and extraneous materials and shall contain sufficient moisture to prevent excessive penetration of the asphalt cement prior to applying the CSS-

1. FDR base curing seal coat Work shall also comply with the requirements of Section 00730.

b. Apply sand cover immediately after application of the asphalt cement sufficient to prevent pickup of the sealant by vehicles and equipment.

c. Allow finished FDR base to cure for a minimum of 48 hours before proof roll and paving.

00643.50 Preparation for Paving

a. Proof roll the FDR base under the observation of the Engineer. Areas exhibiting deflection, reaction or pumping shall be repaired according to 00331.

b. Sawcut and remove damaged or uplifted pavement adjacent to the FDR base. Sawcut and replace curbs and gutters damaged by the pulverizing operation. Repair to pavement and structures damaged by FDR process shall be at no additional cost to Agency.

c. Vacuum sweep the FDR base surface to remove loose sand, dust and debris prior to paving.

00643.51 Repair - Areas of FDR Base to be repaired under 00643.50 shall be backfilled with a plant-mixed cement treated base (CTB). The plant mixed CTB shall be constructed per 00651.

The replacement depth shall be the design depth of the FDR or match the depth of the adjacent FDR, whichever is greater. No skin patches will be permitted.

Maintenance

00643.60 Care and Maintenance of Work - Maintain the FDR base in good condition until all Work is completed and accepted at the Contractor’s expense. Maintenance shall include immediate repairs of any defects that may occur. If it is necessary to replace any FDR base, the replacement depth shall be the design depth of the FDR or match the depth of the adjacent FDR, whichever is greater. Replace the FDR base with plant-mix Cement Treated Base material complying with specifications provided by the Engineer. No skin patches will be permitted.

Measurement

00643.80 Measurement

a) Full Depth Reclamation Base - The quantity of FDR Base will be measured in the field on the area basis.

Special Provisions – Job #900402 18

b) Cementitious Materials - The quantity of Portland Cement and Modifiers used in the cement slurry will be measured on the dry weight basis, excluding water.

c) SSD Sand – The quantity of SSD Sand used in the cement slurry will be measured on the dry weight basis.

d) Asphalt Cement Curing Seal – The quantity of asphalt cement curing seal will not be measured.

Measurement for Excavation of FDR and constructing plant-mixed CTB in areas of FDR that fail during the proof roll will be according to 00331.80.

Payment

00643.90 Payment - The accepted quantities of work performed under this Section will be paid for at the Contract unit price, per unit of measurement, for the following items:

Pay Item Unit of Measurement

(a) Full Depth Reclamation Base,________ Deep…Square Yard

(b) Cementitious Materials……………………………Ton

(c) SSD Sand…………………………………………..Ton

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.

For Item (a), the depth will be inserted in the blank.

No separate or additional payment will be made for asphalt cement curing seal.

Payment for excavation of areas of FDR that fail during the proof roll and construction of plant-mixed CTB will be paid according to 00331.90.

(ADD) Section 00651 – Cement Treated Base

00651.01 Scope – This work consists of constructing a plant-mixed Portland Cement Treated Base (CTB) composed of aggregate, Portland cement and water and placing the CTB on a prepared grade, compacted and cured to the lines, grades, thicknesses and cross sections shown or established.

00651.03 Pre-Production Meeting – Supervisory personnel of the Contractor and any subcontractors or suppliers who are involved in the CTB production and placement shall meet with the Engineer, at a mutually agreed time, to discuss methods of CTB production and placement.

00651.10 Materials – Furnish materials meeting the following requirements:

Special Provisions – Job #900402 19

Aggregate Emulsified Asphalt Cement Portland Cement Water

Aggregate- Aggregate shall conform to the grading and fracture requirements for ¾”-0 size aggregate base and will be tested for soundness according to ODOT TM 206. The average loss of either coarse aggregate or fine aggregate shall not exceed 18% by mass.

Emulsified Asphalt Cement – Furnish CSS-1 emulsified asphalt cement for CTB cure seal meeting the requirements of Section 00730.

Portland Cement – The Portland Cement shall be ASTM Type 1 or 2.

Admixtures - The use of admixtures is not allowed.

00651.13 Mix Design - Prepare and submit a mix design for the CTB.

• Cement treated base shall achieve a 7-day compressive strength of between 300 psi and 500 psi.

• The percentage of cement in the CTB shall be based on the dry weight.

• Determine the Maximum Dry Density by AASHTO T99, Method C corrected for oversize per AASHTO T224 (1996 Version)

• Target compressive strength at 7 days: (300-500) psi. Compressive strength shall be determined by averaging the strength of three (3) test specimens at optimum moisture, as determined by AASHTO T99 Method C corrected for oversize per AASHTO T-224 (1996 Version), and tested for compressive strength in accordance with ASTM 1633 method A.

Do not begin production of CTB for use on the project unit the mix design has been approved by the Engineer.

00651.15 Quality Control – Perform quality control of cement treated base according to Section 00165 and the MFTP. Perform a minimum of three field density tests for every 3600 square feet of material placed, but no less than three per day of cement treated base placement. A minimum of three cylinders will be taken for each day of CTB placement for compressive strength testing.

00651.16 Acceptance - Acceptance of the cement treated base will be based on the Engineer’s quality verification testing of daily samples. Tests may include compaction testing, cement content, compressive strength and verification thickness.

A minimum of three test cylinders shall be taken each day that CTB is placed. Compressive strength shall be determined by averaging the strength of three (3) test specimens at or near optimum moisture, and compacted to a minimum of 98% of maximum density as determined by AASHTO T99 Method C (1996 Version) corrected for oversize per AASHTO T-224, and tested for compressive strength in accordance with ASTM 1633 method A. Compaction tests shall be conducted on an average of three locations per 3,600 square feet of surface area. At each location, conduct two density tests at right angles to one another and average the two results to determine the density for that location.

Special Provisions – Job #900402 20

The Engineer will verify the uniformity and depth of placement. When it is determined that the placement depth is not being…