Amendment 2 - Specification Changes.pdf

SOLICIATION NO. W91238-B-21-0012

1 of 1 Amendment 02

SACRAMENTO , CALIFORNIA

AMERICAN RIVER COMMON FEATURES

NATOMAS BASIN REACH A

AMENDMENT 02 - SUMMARY:

A) SPECIFICATION 2172

1) Replaced entire Project Table of Contents.

2) Replaced entire Section 01 00 00.

3) Replaced entire Section 31 23 17.

4) Replaced entire Submittal Register.

ARCF Natomas Reach A 2172

PROJECT TABLE OF CONTENTS

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

00 73 05 SUPPLEMENTARY CONDITION REQUIREMENTS FOR REACH A

DIVISION 01 - GENERAL REQUIREMENTS

01 00 00 GENERAL REQUIREMENTS

01 11 00 SUMMARY OF WORK

01 22 00 PRICE AND PAYMENT PROCEDURES

01 32 01 PROJECT SCHEDULE

01 33 00 SUBMITTAL PROCEDURES

01 35 26 GOVERNMENTAL SAFETY REQUIREMENTS

01 42 00 SOURCES FOR REFERENCE PUBLICATIONS

01 45 00 QUALITY CONTROL

01 45 00.15 RESIDENT MANAGEMENT SYSTEM CONTRACTOR MODE (RMS CM)

01 50 00 TEMPORARY CONSTRUCTION FACILITIES AND CONTROLS

01 57 19 TEMPORARY ENVIRONMENTAL CONTROLS

01 57 23 TEMPORARY STORM WATER POLLUTION CONTROL

01 71 10 MOBILIZATION AND DEMOBILIZATION

01 78 00 CLOSEOUT SUBMITTALS

DIVISION 02 - EXISTING CONDITIONS

02 32 00 SUBSURFACE DRILLING, SAMPLING, AND TESTING

02 41 00 DEMOLITION AND DECONSTRUCTION

DIVISION 03 - CONCRETE

03 30 53 MISCELLANEOUS CAST-IN-PLACE CONCRETE

03 37 20 CONTROLLED LOW STRENGTH MATERIAL (CLSM)

03 42 13 PLANT-PRECAST CONCRETE PRODUCTS FOR BELOW GRADE

CONSTRUCTION

03 52 16.23 LIGHTWEIGHT CELLULAR CONCRETE

DIVISION 05 - METALS

05 12 00 STRUCTURAL STEEL

05 50 13 MISCELLANEOUS METAL FABRICATIONS

DIVISION 09 - FINISHES

09 97 02 PAINTING: COAL TAR EPOXY

DIVISION 10 - SPECIALTIES

10 14 53 TRAFFIC SIGNAGE

DIVISION 22 - PLUMBING

22 14 13.13 DISCHARGE PIPING

DIVISION 26 - ELECTRICAL

26 05 00 COMMON WORK RESULTS FOR ELECTRICAL

26 28 01 COORDINATED POWER SYSTEM PROTECTION

DIVISION 31 - EARTHWORK

PROJECT TABLE OF CONTENTS Page 1

AM02

31 00 00 EARTHWORK

31 05 22 GEOTEXTILES USED AS FILTERS

31 09 13 GEOTECHNICAL INSTRUMENTATION AND MONITORING

31 09 14 AUTOMATED DATA ACQUISITION SYSTEM

31 11 10 CLEARING, GRUBBING, AND STRIPPING

31 23 17 BORROW SITE EXCAVATION

31 23 19 DEWATERING, DIVERSION AND CONTROL OF WATER

31 32 23 FOUNDATION DRILLING AND GROUTING

31 56 13 SLAG CEMENT-CEMENT-BENTONITE (SCCB) CUTOFF WALL - OPEN

TRENCH

31 56 14 SOIL-CEMENT-BENTONITE (SCB) CUTOFF WALL - DEEP MIXING

METHOD

31 56 15 SOIL-CEMENT-BENTONITE (SCB) CUTOFF WALL - VERTICAL CHAIN

TRENCH (VCT) METHOD

31 60 10 COMPACTION GROUTING

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 11 23 AGGREGATE BASE COURSES

32 12 13 BITUMINOUS TACK COATS

32 12 16 HOT-MIX ASPHALT (HMA) FOR ROADS

32 15 00 AGGREGATE SURFACING

32 17 23 PAVEMENT MARKINGS

32 31 13 CHAIN LINK FENCES AND GATES

32 31 26 WIRE FENCES AND GATES

32 92 33 GRASS SEEDING AND EROSION CONTROL

DIVISION 33 - UTILITIES

33 11 00 WATER UTILITY DISTRIBUTION PIPING

33 30 00 SANITARY SEWERAGE

33 31 23 SANITARY SEWER FORCE MAIN PIPING

33 40 00 STORM DRAINAGE UTILITIES

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION

35 20 16.26 SLUICE GATES AND HOISTS

35 20 18 FLAP GATE AND APPURTENANCES

35 42 13 TEMPORARY SHORING

35 45 01 VERTICAL PUMPS, AXIAL-FLOW AND MIXED-FLOW IMPELLER-TYPE

35 45 02 WET WELL PHYSICAL MODEL STUDY

-- End of Project Table of Contents --

PROJECT TABLE OF CONTENTS Page 2

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 00 00

GENERAL REQUIREMENTS

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 PARTNERING

1.4 SCRAP MATERIAL

1.5 UTILITIES

1.6 GENERAL SAFETY REQUIREMENTS

1.6.1 General

1.6.2 The Contractor's Superintendent

1.6.3 Violations

1.6.4 Fire Prevention

1.6.5 Recordkeeping/Reporting Requirements

1.6.6 Accident Reporting

1.7 TIME EXTENSIONS FOR UNUSUALLY SEVERE WEATHER

1.8 PLANNED STREET CLOSURES

1.8.1 Transportation Mitigation

1.9 SPECIAL CONSTRUCTION PROCEDURES

1.10 SPECIAL CONSTRUCTION CONDITIONS

1.10.1 Vibration Monitoring

1.10.1.1 Ground Vibration Monitoring Control Plan

1.10.1.2 Background Vibration Monitoring Report

1.10.1.3 Vibration Monitoring During Construction

1.10.1.4 Weekly Vibration Monitoring Report

1.10.1.5 Pre- and Post-Construction Condition Surveys

1.10.1.5.1 Inspector Qualifications

1.10.1.6 Final Vibration Monitoring Report

1.10.1.7 Complaint Process

1.10.1.8 Repair of Damage

1.11 STREAM GAGE DATA

1.12 GOVERNMENT RETAINED ARCHITECT-ENGINEER (A/E)

1.13 COMMERCIAL DISPOSAL SITE

1.14 HAUL ROUTE PLAN

1.15 HAUL ROAD RECORDING DAMAGE TO ROADS, REPAIRS, AND DOCUMENTATION

1.16 PROJECT SECURITY AND PUBLIC SAFETY

1.17 BID ITEM OVERRUN

1.18 NON CONTRACT WORK

1.19 WARRANTY OF CONSTRUCTION

1.20 PROJECT SURVEYS

1.20.1 Survey Services

1.20.2 Survey Supervision and Scheduling

1.20.3 Field Survey Book(s)

1.20.4 Preconstruction Topographic Survey

1.21 PRE-CONSTRUCTION VIDEO AND PHOTOGRAPH SURVEY

1.22 POST-CONSTRUCTION VIDEO AND PHOTOGRAPH SURVEY

1.23 FINAL EXAMINATION AND ACCEPTANCE

SECTION 01 00 00 Page 1

PART 2 PRODUCTS

PART 3 EXECUTION

3.1 AFTER AWARD DOCUMENTS

ATTACHMENTS:

Surveying and Mapping

-- End of Section Table of Contents --

SECTION 01 00 00 Page 2

SECTION 01 00 00

GENERAL REQUIREMENTS

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this Section to the extent referenced. The publications are referred to within the text by the basic designation only.

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 1110-1-1005 (2007)Control and Topographic Surveying

EM 385-1-1 (2014) Safety and Health Requirements Manual

ER 415-1-15 (1989) Construction Time Extensions for Weather

U.S. ARMY CORPS OF ENGINEERS, SACRAMENTO DISTRICT (CESPK)

DM 4-805-10 (1991) Survey Manual

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1904 Recording and Reporting Occupational Injuries and Illnesses

29 CFR 1926 Safety and Health Regulations for Construction

U.S. Code (USC)

USC Title 29 Title 29 Labor

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Utilities; G

Haul Route Plan; G

Preconstruction Access Road Survey

Pre-Construction Video and Photograph Survey of the access roads and project site; G

SECTION 01 00 00 Page 3

Video and photographs of project site

Disposal Plan; G

Documentation of haul road repairs; G

Preconstruction Quality Surveys; G

Video and Photographs of all project adjacent public, private, project access and haul roads.

Preconstruction Quantity Survey Plan; G

Plan stating the names of personnel and license number who will be in performing the before construction (B.C.) Survey, plus the procedures to be followed in conducting the B.C. Survey

Traffic Control Plan; G

The Plan must be prepared in accordance with these specifications.

Preconstruction Quality Survey Plan; G

Preconstruction Topographic Survey

Ground Vibration Monitoring and Control Plan; G

Background Vibration Monitoring Report; G

Pre-Construction Survey Report; G

Inspector Qualifications; G

SD-06 Test Reports

Accident Reporting

Worker's Compensation Claims

SD-11 Closeout Submittals

Documentation of Haul Road Repairs; G

Post-Construction Video and Photograph Survey

Post-Construction Quality Surveys

Post-Construction Quality Survey Plan

Video and photographs of all project adjacent public, private, project access and haul roads.

Field Survey Book(s)

Ground Vibration Monitoring Results, Weekly ReportsWeekly Vibration Monitoring Report; G

Ground Vibration Monitoring Results, Final Report; G

SECTION 01 00 00 Page 4

Complaint Documentation; G

Final Vibration Monitoring Report; G

1.3 PARTNERING

To most effectively accomplish this contract, the Government requires the formation of a cohesive partnership within the Project Team whose members are from the Government, the Contractor and their Subcontractors. Key personnel from the non-Federal Sponsors, the End User (who will occupy the facility), the Government Design and Construction team and Subject Matter Experts, the Contractor and Subcontractors, and the Designer of Record will be invited to participate in the Partnering process. The Partnership will draw on the strength of each organization in an effort to achieve a project that is without any safety mishaps, conforms to the Contract, and stays within budget and on schedule.

The Contracting Officer will provide Information on the Partnering Process and a list of key and optional personnel who should attend the Partnering meeting.

Provide and host the Partnering sessions with key personnel of the Project Team, including Contractor personnel and Government personnel. Pay all costs associated with the Partnering effort including the Facilitator, the meeting room, and other incidental items. In exception, each participant bears their own costs for meals, lodging, and transportation associated with the Partnering sessions.

Before a Partnering session, coordinate with the Facilitator all requirements for incidental items (such as audio-visual equipment, easels, flipchart paper, colored markers, note paper, pens/pencils, colored flash cards), and have these items available at the Partnering session. Provide copies of documents for distribution to all attendees. Provide a Facilitator experienced in conducting Partnering Workshops, and who is acceptable to both the Government and the Contractor. The Facilitator is responsible for leading the team in a timely manner and making sure that issues are identified and resolved. A list of Partnering Facilitators is available from the Contracting Officer.

a. Schedule the Initial Partnering Session for a duration of one day minimum. Locate this session at a place off the construction site, as agreed to by the Contracting Officer and the Contractor. It may take place concurrently with the Pre-Construction Meeting.

b. Schedule follow-on Partnering Session(s) for a maximum of 4 hours.

Schedule them at no more than 3 to six month intervals. Participants are encouraged to utilize electronic means to expedite meetings.

Meetings may be held at a location off-site, at the project site, or in a Government Facility. Follow-on meetings may be held concurrently with other scheduled meetings. Attendees need only be those required to resolve current issues. Recommend using the same Facilitator from the Initial Partnering session to achieve best results and for continuity.

1.4 SCRAP MATERIAL

Materials specified to be removed and become the property of the Contractor are designated as scrap, and the Contractor, by signing this Contract, SECTION 01 00 00 Page 5 hereby acknowledges that he has made due allowance for value, if any, of such scrap in the Contract price.

1.5 UTILITIES

If the Contractor encounters, within the construction limits of the entire project, utilities not shown on the plans and not visible as to the date of this Contract and such utilities will interfere with construction operations, Contractor must immediately notify the Contracting Officer in writing to enable a determination by the Contracting Officer as to the necessity for removal or relocation. Notify the Contracting Officer at least 30 days in advance of the date on which work will be started requiring the removal or relocation of such utilities or private improvements. Care must be taken to preserve and protect any such improvements from injury or damage during construction operations. Assume full responsibility for reimbursing the owners for any damage to their properties, utilities, or improvements, or interference with their services caused through his operations. Should such damage be found to have been caused without the Contractor's fault or negligence an equitable adjustment in the amount due under the Contract will be made under the applicable

CONTRACT CLAUSES.

Contractor must coordinate all utility work and need for utility service disruptions with the utility companies and Contracting Officer a minimum of 14 days in advance of utility disruption date. Contractor must be prudent in contacting utility companies and the Contracting Officer as soon as possible to prevent possible delays to construction and/or unnecessary or unscheduled disruption of the utility service.

1.6 GENERAL SAFETY REQUIREMENTS

1.6.1 General

EM 385-1-1, USC Title 29, 29 CFR 1926, as revised from time to time, Title 29, Part 1910, as revised from time to time, and the Occupational Safety and Health Administration (OSHA) codes are applicable to this Contract. In case of conflict the most stringent requirement of the standards is applicable.

1.6.2 The Contractor's Superintendent

The Contractor's superintendent must take an active role in enforcing the safety requirements by participation in safety conferences, hazard analysis (see below), tool box meetings, walk-through inspections, correction of violations, etc., and including that of the subcontractor's work.

1.6.3 Violations

If recurring violations and/or a gross violation indicate that the safety performance is unsatisfactory, corrective action must be taken as directed, and at the discretion of the Contracting Officer the retention or some part thereof will be withheld from the progress payment until corrective action has been completed.

1.6.4 Fire Prevention

Cutting or welding, if required, are permitted only in areas that are or have been made fire safe. Where possible, all combustibles must be located at least 40 feet horizontally from the work site. Where such location is

SECTION 01 00 00 Page 6 impracticable, combustibles must be protected with fire blankets and/or protective welding screens to prevent slag from running out of the work area. Other fire prevention precautions must be in accordance with the latest National Fire Codes.

1.6.5 Recordkeeping/Reporting Requirements

On all Contract operations, be responsible for recording and reporting all accident exposure and experience incident work (this includes exposure and experience of the Contractor and his subcontractors). As a minimum these records must include exposure work-hours and a log of occupational injuries and illnesses. OSHA Form 200 or state equivalent as prescribed by 29 CFR 1904 and EM 385-1-1.

1.6.6 Accident Reporting

In addition to the requirements for reporting accidents in accordance with EM 385-1-1, Section 1, submit to the Contracting Officer at the 100% of project completion, a written summary report of Worker's Compensation Claims filed by workers on the project (see submittal "Workers Compensation Claims"). The report must include all subcontractors. The report must be certified as "correct and true" by the Contractor's and the subcontractors' compensation insurance carrier.

1.7 TIME EXTENSIONS FOR UNUSUALLY SEVERE WEATHER

This provision specifies the procedure for the determination of time extensions for unusually severe weather. In order for the Contracting Officer to award a time extension under this clause, the following conditions must be satisfied:

a. The weather experienced at the project site during the Contract period must be found to be unusually severe, that is, more severe than the adverse weather anticipated for the project location during any given month.

b. The unusually severe weather must actually cause a delay to the completion of the project. The delay must be beyond the control and without the fault or negligence of the Contractor.

The following schedule of monthly anticipated adverse weather delays is based on National Oceanic and Atmospheric Administration (NOAA) or similar data for the project location an constitutes the base line for monthly weather time evaluations. The Contractor's progress schedule must reflect these anticipated adverse weather delays in all weather dependent activities.

MONTHLY ANTICIPATED ADVERSE WEATHER DELAY

WORK DAYS BASED ON (5) DAY WORK WEEK

STATE: CALIFORNIA INSTALLATION/NOAA: SACRAMENTO

STATION

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

7 6 5 4 1 0 0 0 1 2 5 7

Upon execution of the Notice to Proceed (NTP) and continuing throughout the Contract, the Contractor must record on the daily Contractor Quality Control (CQC) report, the occurrence of adverse weather and resultant

SECTION 01 00 00 Page 7 impact to normally scheduled work. Actual adverse weather delay days must prevent work on critical activities for 50 percent or more of the Contractor's scheduled work day(ER 415-1-15).

1.8 PLANNED STREET CLOSURES

All street, driveway, sidewalk, and parking lot access closures must be of as short a duration as possible and must be scheduled as far in advance as possible with the Contracting Officer. Strictly observe such schedules, and Contractor is responsible for any violations. Obtain approval in writing from the Contracting Officer before requesting permission for closing any street, driveway, sidewalk, or parking lot access. The request for closure shall be submitted in writing to the local jurisdiction as required and submit copies to the Contracting Officer seven (7) working days prior to planned closing and shall include the section to be closed and length of time of closure. Before any outage or closure is scheduled, the Contractor must:

a. Have all approved materials necessary for the closure on hand

b. Have completed, tested and been inspected by the Construction Quality Control Representative all preliminary work.

c. Have all permits and personnel qualifications on hand.

d. Have held a joint inspection with a representative of the Contracting Officer, Construction Quality Control Representative, and the representative from local agency approving closure.

Before any closure takes place, the Contractor must:

a. At least two working days prior to the closure, notify in writing all residential and commercial entitities with roadway access within 200-ft of the planned closure.

b. At least four weeks prior to any lane closures, have an approved Traffic Control Plan which defines the schedule and durations for all proposed road closures throughout construction. Update this plan as necessary during the execution of the work to accurately reflect past and upcoming closures.

c. Notify DART of any closure that will restrict access from either direction along Garden Hwy. At all times, maintain access to the DART facility from one direction along Garden Hwy.

The contractor is responsible for furnishing and placement of portable changeable message sign (PCMS) displaying the message 'ROAD CLOSED' with closure duration times a minimum of 14 calendar days in advance of street closures. A minimum of one PCMS shall be located along each approaching street leading to the closure site. PCMS shall be placed outside of the traveled way at a location approved by the Engineer. The Contractor shall obtain in writing from the Contracting Officer a statement or schedule giving the permissible times of closures for particular installations and the maximum time allowed for each.

1.8.1 Transportation Mitigation

Coordinate all road closures and mitigation with the Contracting Officer, City of Sacramento (Traffic, Police, Fire), County of Sacramento

SECTION 01 00 00 Page 8

(Transportation, Sheriff, Fire), CALTRANS, Natomas Unified School District, and other responsible agencies. The following measures must be implemented to reduce the adverse affects on traffic and circulation:

a. Construction zones along residential roadways must be posted to notify approaching motorists of trucks entering and exiting roadside construction sites and to reduce speeds through the construction zone.

b. Before and during construction, signs must be placed at construction areas to notify users of ongoing construction and limits of use.

c. Before and during construction, electronic signs must be posted for rerouted routes for motorists and bicyclist.

d. Access must be provided for emergency vehicles at all times, including vehicular access to and from the Garden Hwy entrance to the DART facility.

e. All speed limits, traffic laws, and transportation regulations must be obeyed during construction.

f. If there are trucks or equipment needing time to maneuver in residential areas or into or out of construction sites, flaggers must be stationed to slow or stop approaching vehicles to avoid conflicts with construction vehicles or equipment.

g. On-street parking for construction workers is prohibited.

h. Off-street parking must be identified and provided to the construction workers and their vehicles and trucks. If possible, parking would be close enough to walk to the site.

A Preconstruction Access Road Survey and a Traffic Control Plan must be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES.

1.9 SPECIAL CONSTRUCTION PROCEDURES

The following measures must be implemented to reduce the short term effects on Recreation and the Community:

a. Prior to construction, assist with the Contracting Officer in providing public outreach through mailings, posting signs, coordination with interested groups, and meetings to provide information regarding changes to recreation use and access.

b. Prior to construction, assist the Contracting Officer as necessary in the coordination with local bike groups and alternative bike routes.

c. Before and during construction, place warning and restriction signs at construction areas and levee access points to notify users of ongoing construction and limits of use.

d. If there are trucks or equipment needing time to maneuver or access construction areas, or if directed by the Contracting Officer, flaggers must be stationed to slow or stop approaching vehicles, bicyclists, and pedestrians to avoid conflicts with construction vehicles or equipment and to maintain public safety.

e. Remove and replace the damaged sections of bike trails required to

SECTION 01 00 00 Page 9 construct the work or used for construction access. The existing bike trail with, alignment and profile must be maintained. Centerline striping must be included in the bike trail replacement.

1.10 SPECIAL CONSTRUCTION CONDITIONS

1.10.1 Ground Vibration Monitoring and Control Program

The Contractor must prepare, submit for approval, and implement a ground vibration monitoring and control program to prevent damage to the existing structures as result of ground vibration caused by construction activities.

The Contractor must submit a Ground Vibration Monitoring and Control Plan within 14 days of NTP. The Plan must be prepared and implemented by persons qualified and experienced with vibration monitoring during construction activities. The plan must include, but not be limited to, the placement details for the monitors, calibration testing, vibration baseline monitoring plan, maximum peak particle velocities for each monitoring location based on physical location, methods by which the Contractor will be notified of exceedances, and actions the Contractor will take if vibration intensity (peak particle velocity) limits are exceeded (exceedance events).

Vibration monitoring must be continuous where ground vibration generating activities are conducted within two hundred (200) feet of vibration sensitive receptors (residences, pump stations, pipelines, and other facilities if shown or specified on the plans). The Contractor must measure and record ground vibration levels at each activity operation adjacent to sensitive receptors. Monitoring stations do not have to be activated during non-work hours. The Contractor must conduct a one (1) week long pre-construction, continuous monitoring program to establish background values of vibration. Results of this monitoring must be submitted to the Government for information. Work must not begin or proceed in any area until and unless the monitoring stations are activated and functioning.

Monitoring stations must be placed in lines approximately parallel to the levee alignment at intervals not to exceed 200 feet along the project limits. Along levee haul routes outside of ground disturbance activities, monitoring stations must be placed at intervals not to exceed 1,000 feet along the project limits. The monitoring stations must be activated during any work activity. Vibration monitoring equipment must be placed at the property line adjacent to the work area and, with owner approval (coordinated by the Contractor), at the back of the residential structures adjacent to the area of work. The Government reserves the right to direct the Contractor to relocate the monitoring stations.

Ground vibrations must be measured as peak particle velocity in inches per second. Vibration measurements must be made using an instrument capable of continuously monitoring three (3) orthogonal components with a resolution to within one-hundredth (0.01) inch per second. Vibrations must not exceed

0.50 inch per second at the levee toe and 0.2 inch per second at any structure landside or waterside of the levee.

Contractor is responsible for repairing damage to existing structures caused by construction vibrations, including but not limited to; retaining walls, concrete foundations, exterior and interior walls, flatwork, roadways, and outdoor landscaping (including pools, concrete patios, and driveways). Submit Ground Vibration Monitoring Results, Weekly Reports and Ground Vibration Monitoring Results, Final Report.

SECTION 01 00 00 Page 10

If a vibration monitor reading exceeds the allowable limit, the Contractor must immediately notify the laborers in the area. The cause of the vibration must be documented along with a proposed remediation action to prevent future vibration exceedances. Work may continue through the investigative phase. Limit exceedance events must be documented in the weekly vibration monitoring report.

Owners of residences and commercial buildings within 75 feet of construction activities (construction limit) will be given the opportunity for pre- and post-construction condition surveys to be conducted by the Contractor. The Contractor must utilize a third-party Contractor to perform the surveys, and the Contractor must accompany Government representatives and the Contractor must perform and document the condition surveys that are requested by residential and commercial building owners.

For pricing purposes, assume 75% of the homeowners within 75 feet of the construction limit shown on the drawings will request pre- and post-construction condition surveys. Contractor must document physical conditions and any damage with photographs, video, use of appropriate scales including measuring tape and ACI 224R-certified crack monitoring card, and written, dated documentation. Repair of construction-related damage to any residence by the Contractor is required in accordance with this Section of the Contract Documents.

The Contractor must submit a weekly report of the monitoring results to the Government. Within the weekly report, include descriptions of the exceedance events, construciton activities taking place during exceedance events, and actions taken in response to the exceedance events. A final report summarizing the monitoring and control plan along with all pre- and post-inspections of structures must be submitted prior to final inspection of the project by the Government.

Ground vibration generating activities are all work activities specified in Contract Documents and include but are not limited to the movement of any equipment during excavation, foundation preparation, cutoff wall construction, embankment material hauling, embankment material placement, moisture control, compaction, and waste hauling.

1.10.1 Vibration Monitoring

Prepare and implement a ground vibration monitoring and control program to prevent damage to existing Structures (defined below) located within two hundred (200) feet of Construction Limits caused by ground vibration construction activities.

The term "Construction Limits" is defined as the boundaries of the project as shown on the Contract Drawings, including staging areas and levee hauling routes. The term "Construction Limits" do not include haul routes along public streets, highways, and freeways.

The term "Structures" includes, but is not limited to, private roadways, utilities, pump stations, residences (both interiors and exteriors), drywall, stucco walls, architectural fascia, retaining walls, swimming pools, concrete foundations, flatwork, utilities serving residences, City Sump 160, Pumping Plants 1A and 1B, and park structures.

"Ground Vibration Construction Activities" (Construction Activities) are all work activities specified in the Contract Documents and include, but are not limited to, the mobilization of equipment to the project site, SECTION 01 00 00 Page 11 movement of any equipment during excavation, foundation preparation, cutoff wall construction, embankment material hauling, embankment material placement, moisture control, compaction, waste hauling, demobilization from the project site, and any site restoration activities. Such Construction Activities must be performed in accordance with allowable vibration limitations identified in subparagraph "Vibration Monitoring During Construction" below.

1.10.1.1 Ground Vibration Monitoring Control Plan

Submit a Ground Vibration Monitoring Control Plan (Plan) within twenty (20) calendar days of Contract Award for Government approval. The Plan must be prepared and implemented by persons qualified and with at least five (5) years of experience in vibration monitoring of Structures (as defined above) located within two hundred (200) feet of Construction Limits.

The Plan must include, but not be limited to:

" The plan preparer's resume.

" The pre- and post-construction conditions survey inspector resume.

" Proposed locations of vibration monitors on a table and site plan in PDF and Google Earth KMZ.

" Placement and security details for all the vibration monitors.

" Calibration testing procedures and documentation.

" Frequency of inspections and maintenance of installed vibration monitors including how many monitors may be inactive due to maintenance at any given time.

" Procedures to ensure vibration monitors are always operative during Construction Activities taking place within two hundred (200) feet of the Construction Limits.

" Procedures to identify, repair and/or replace malfunctioning vibration monitors and maximum downtime for a monitor repair or maintenance.

" Proposed background vibration monitoring plan.

" Methods by which the Contractor and Government will be immediately notified of any exceedances.

" Actions the Contractor will take if vibration intensity (peak particle velocity) limits are exceeded (exceedance events).

" Any additional measures the Contractor requires to assure the Ground Vibration Monitoring and Control Program requirements are met and allowable limits are not exceeded.

" Procedures to document, process, and address any vibration related damage complaints (including but not limited to resolution by repair, if appropriate) from owners of Structures located with two hundred (200) feet of the Construction Limits.

Maximum peak particle velocities in inches per second must be recorded for each monitoring location. At a minimum, monitoring stations must be placed in lines approximately parallel to the levee alignment at intervals not to exceed two hundred (200) feet along the Construction Limits closest to Structures, where possible. Along levee haul routes outside of ground disturbance activity areas, monitoring stations must be placed at intervals not to exceed one thousand (1,000) feet along the Construction Limits.

Vibration monitors at City Sump 160, Pumping Plant 1A and 1B, must be installed near the fence line located along the landside toe. The Government reserves the right to direct the Contractor to relocate monitoring stations at any time.

1.10.1.2 Background Vibration Monitoring Report

Prior to mobilization to the project site, the Contractor must conduct a

SECTION 01 00 00 Page 12 twenty-four (24) hours per day, one (1) week-long pre-construction, continuous monitoring program to establish pre-construction, background values of vibration. "Continuous" is defined as without interruption during the entire required monitoring period. The Contractor must not mobilize to any area of work within the Construction Limits until the one-week background vibration monitoring period is completed for that area. Any exceedance events occurring during background monitoring must be reported in writing along with the assumed source, time, and location of exceedance events. The Background Vibration Monitoring Report must be submitted to the Government within seven (7) calendar days after completion of the baseline monitoring period and no later than fourteen (14) days prior to mobilizing to any area of work within the Construction Limits.

1.10.1.3 Vibration Monitoring During Construction

During construction, vibration monitoring must be continuous where any Construction Activities, including activities within staging areas, are taking place within two hundred (200) feet of Structures. The vibration monitoring system must be capable of automatically and immediately notifying the Contractor and select Government personnel of any vibration exceedance events in real-time including during the Background Vibration Monitoring Period. Government personnel to be included in this automatic notification list will be provided at time of Contract award. This automatic notification must include information on which monitor(s) experienced the exceedance. Continuously measure and record ground vibration levels at each active operation conducted within two hundred

(200) feet of Structures and provide copies of written reports to the Government no later than twenty-four (24) hours after the end of day being reported. Monitoring stations are not required to be activated during non-work hours. Work must not proceed in any area within the Construction Limits unless the monitoring stations are confirmed in writing to be activated and functioning each morning. Status of the vibration monitors must be documented in the daily Quality Control Report.

Ground vibrations must be measured as peak particle velocity in inches per second. Vibration measurements must be made using an instrument capable of continuously monitoring three (3) orthogonal components with a resolution to within one-hundredth (0.01) inch per second. Instruments shall be capable of live feed and reporting of data with alerts for vibration exceedances. Vibration must not exceed the allowable readings below as measured from the area within the Construction Limits located closest to Structures (see subparagraph "Ground Vibration Monitoring Control Plan" above).

General Location/Category

Tier 1 Vibration

Maximum Reading Allowed (in/s)

Tier 2 Vibration

Maximum Reading Allowed (in/s)

Residential Areas, Parks, City Sump 160, Pumping Plants 1A and

1B Staging Areas

0.20 0.40

Allowable vibration limits identified above represent the minimum standards which the Contactor must adhere to at all times.

If a vibration monitor reading exceeds the Tier 1 limit, the Contractor

SECTION 01 00 00 Page 13 must immediately contact by phone, or other appropriate method, the Government, and any laborers in the area. The cause of the vibration must be documented by the Contractor along with a proposed remediation measure to prevent future vibration exceedances. Work may continue through the Tier 1 investigative phase. Tier 1 limit exceedance events and proposed remediation measures must be documented in the Weekly Vibration Monitoring Report.

If a vibration monitor reading exceeds the Tier 2 limit, or has two or more Tier 1 exceedances within an hour at any location, the Contractor must immediately stop work within two hundred (200) feet of monitors reporting exceedances, meet with Contractor Quality Control, notify Contracting Officer of the exceedance, document the likely cause of the vibration, and propose a remediation measure to prevent a future occurrence. The Contracting Officer will determine if the proposed remediation measure is sufficient and if further action is needed before allowing work to resume.

Further actions may include the observation and assessment of Structures located within 200 feet, monitoring of cracks, and/or work postponement until remedial measures are implemented. Tier 2 limit exceedances must be documented in the Weekly Vibration Monitoring Report.

If construction is unable to progress without vibration monitor reading exceedances, submit a Request for Information to the Government describing the Construction Activity(ies) responsible for the exceedances and what reasonable measures to reduce or eliminate the vibration exceedances were attempted. The Contracting Officer will provide further direction.

1.10.1.4 Weekly Vibration Monitoring Report

The Contractor must submit a Weekly Vibration Monitoring Report to the Government at the end of business on the last construction day for each week. The weekly vibration monitoring report must include, but is not limited to:

" A site plan and a table in PDF with all the installed vibration monitors if monitors are relocated for the subject week.

" A spreadsheet showing each monitor identification or serial number, location (nearest station, latitude, and longitude in decimal degrees), date and time of the highest peak particle velocity registered for each workday, and the number of exceedances of each station for workday.

" Date, time, and description of any exceedance events (including, but not limited to the required exceedances to be reported under subparagraph

17.30.3 above entitled "Vibration Monitoring During Construction").

" Construction Activities taking place within two hundred (200) feet of the vibration monitor during any exceedance event.

" Description of the likely cause for the exceedance.

" Actions taken in response to the exceedance event to prevent further exceedances.

" Copies of daily vibration monitoring histograms.

1.10.1.5 Pre- and Post-Construction Condition Surveys

The Contractor must offer to conduct pre- and post-construction condition surveys of Structures located within two hundred (200) feet of the Construction Limits, including staging areas, on a voluntary basis. Seven

(7) calendar days prior to commencing pre-construction surveys, the inspector must schedule a meeting with the Government to review specific items the Contract requirements for conducting the surveys and items the inspector must document during their surveys, as detailed below. Government representatives may accompany the inspector when surveys are performed. The

SECTION 01 00 00 Page 14 inspector must meet the requirements in Inspector Qualifications below. The inspector must inspect and document the physical condition of the interior and exterior of residences and other Structures. Crawl spaces are exempt from the inspection requirement unless obvious signs of distress are observed at the time the of the survey. The pre- and post- construction survey documentation must note any existing damage using video, photographs, and a clearly written log. Every photograph must have a reference scale. As appropriate, use scales including measuring tape and ACI 224R-certified crack monitoring card. For pricing purposes, assume 75% of the owners of Structures located within two hundred (200) feet of Construction Activities will request pre- and post-construction condition surveys.

Pre-Construction Condition Surveys must be completed prior to commencement of any Construction Activities including, but not limited to, clearing, grubbing, stripping, and levee degrade. Mobilization to the site will not be permitted until the Pre-Construction Survey Report has been submitted to the Government. This documentation would be reviewed with the individual owners prior to any construction activities. Fourteen (14) days after completing all Pre-Construction Condition Surveys, the Contractor must submit a report containing all pre-construction condition survey documentation to the Government.

The Contractor must conduct Post-Construction Condition Surveys on all Structures covered in Pre-Construction Condition Surveys no later than fourteen (14) after full demobilization. Any damage would be documented with photographs and video. This documentation would be reviewed with the individual property owners. The Contractor must provide a report containing all of the post-construction condition documentation to the Government no later than fourteen (14) days from completing the final Post-Construction Condition Survey.

1.10.1.5.1 Inspector Qualifications

The inspector performing the pre- and post-construction surveys must have at least five (5) years' experience as either a forensic civil engineer, or insurance claims adjuster, specializing in residential structures and swimming pool construction. Contractor shall submit, for Government approval, proof the inspector meets the minimum requirements.

1.10.1.6 Final Vibration Monitoring Report

A Final Vibration Monitoring Report summarizing the monitoring and control program along with all pre- and post-construction condition surveys of Structures must be submitted prior to final inspection of the project by the Government. The report must be submitted no later than two (2) weeks after the Contractor has demobilized from the project site.

1.10.1.7 Complaint Process

Any complaint received directly by the Contractor from the owner of a Structure must be reported to the Government in writing within one (1) business day. Once a complaint is received by the Contractor (and communicated to the Government) and/or submitted to the Contractor by the Government, the Contractor has seven (7) calendar days to visit the identified location and two (2) additional weeks to provide Complaint Documentation to the Government. Complaint Documentation includes, but is not limited to, a copy of the complaint form, current site conditions, comparison against the pre-construction survey if available, proposed

SECTION 01 00 00 Page 15 disposition, and the steps and schedule to resolve the complaint including but not limited to resolution by repair, if appropriate). A digital copy of the complaint form will be provided at time of contract award. At a minimum the complaint form information must be provided but it does not prohibit the Contractor from obtaining additional information.

1.10.1.8 Repair of Damage

In accordance with 00 73 05 (SCR-11 Protection of Existing Improvements), The Contractor is responsible for repairing damage to Structures in the event any exceedance of allowable vibration limits identified in subparagraph "Vibration Monitoring During Construction" above results in damage.

1.11 STREAM GAGE DATA

Stream gage data is available for the Sacramento River which should be referenced in the design of the cofferdam for Pumping Plant 1A improvements and other waterside work to be performed within this reach. The following stream gage data is publicly avaialble online, including historical data:

The closest gages are at Verona at River Mile 79 (USGS) and I Street at River Mile 59 (DWR)

For historical gage records at Verona:

https://waterdata.usgs.gov/nwis/inventory?agency_code=USGS&site_no=11425500

For historical gage records at I Street:

https://wdl.water.ca.gov/waterdatalibrary/StationDetails.aspx?SelectedAll=False&site2=A02

The California-Nevada River Forecast Center provides current and forecasted river stages: https://www.cnrfc.noaa.gov/

1.12 GOVERNMENT RETAINED ARCHITECT-ENGINEER (A/E)

The Government may retain the services of an A/E to increase the level of confidence that the construction Contractor has complied with the requirements of the construction Contract. The A/E's role in observing, monitoring or inspecting the activities of the construction Contractor is not intended in any way to require the A/E to assume any responsibility for the construction methods, means, techniques or procedures, including any health or safety requirements, be subjected to nonmeritorious litigation relating to site accidents or other circumstances associated with the construction Contractor's activities. The A/E must be named as an additional insured on all comprehensive general liability insurance policies carried by the construction Contractor.

1.13 COMMERCIAL DISPOSAL SITE

Locate a reliable commercial disposal site, and secure a disposal site as needed for the Project. The disposal site must be in compliance with the requirements defined in the plans, specifications, and Contract Documents.

Disposal site must be located within 6 miles of the project site; the disposal site may be further as long as total air quality requirements are met in any condition. Disposal site and disposal activities must be in compliance with all applicable local, state, and federal regulations.

Prior to beginning construction work submit a Disposal Plan to the Contracting Officer. The Disposal Plan must include location of disposal

SECTION 01 00 00 Page 16 site(s), as well as copies of disposal site current and applicable Federal, State and local permits. Be responsible for determining and providing certification to the Contracting Officer that the material to be disposed is free from contaminants and is suitable for disposal at a commercial facility. The Disposal Plan must be prepared and submitted at no additional cost to the Government.

1.14 HAUL ROUTE PLAN

Submit a Haul Route Plan prior to beginning work. This plan must include offices, material storage areas and structures and the access routes to these areas. Haul routes from the sites to major highways must be indicated. All required traffic signs, special limits, warning devices, lighting and other such safety devices required by EM 385-1-1, OSHA, local cities and Caltrans (on state roads) must be shown. Provisions must be made in the Haul Route Plan for alternate routes when interferences block designated haul routes. The Haul Route Plan must be revised and resubmitted if the haul routes being used are not as shown on the plan.

Work for sections such as Demolition, Grading, Tree Removal and other sections with excavations must be coordinated with this plan.

1.15 HAUL ROAD RECORDING DAMAGE TO ROADS, REPAIRS, AND DOCUMENTATION

Video and photograph all public roads to be used for hauling prior to beginning construction. A copy of the video and photographs must be submitted to the Contracting Officer prior to beginning construction.

Preserve and protect all existing private or project access or right-of-way roads. At the completion of work and prior to the Contractor leaving the project, restore to pre-project conditions all such roads as directed by the Contracting Officer at no additional cost to the Government in accordance with the local permits obtained. Repairs must include replacement of base rock and/or surface treatment as required

Repairs must be documented with a thorough description of repair made, location, and photographs. Documentation of haul road repairs must be submitted to the Contracting Officer following repair.

1.16 PROJECT SECURITY AND PUBLIC SAFETY

The Contractor must require all visitors to abide by all construction site safety requirements. The Contractor must notify the Contracting Officer 48 hours before the commencement of any physical activities on the site.

1.17 BID ITEM OVERRUN

Throughout the Contract, (at a minimum, every 5 calendar days) be responsible to monitor placement or installation of unit price items with respect to the original estimated quantities shown in the Contract. If placement or installation indicates a possible overrun with respect to the original estimated quantities shown in the Contract, immediately provide written notification to the Contracting Officer with revised total estimated quantities.

1.18 NON CONTRACT WORK

The Contractor and/or his subcontractors must not perform any work or erect any structure for third parties, landowners or otherwise, within the limits of the rights-of-way or designated construction limits without prior

SECTION 01 00 00 Page 17 approval of the Contracting Officer.

1.19 WARRANTY OF CONSTRUCTION

Performance Bond:

a. It is understood that the Contractor's Performance Bond must remain effective throughout the life of all warranties and warranty extensions.

b. In the event the Contractor or his designated representative fails to commence and diligently pursue any work required herein within a reasonable time after receipt of written notification pursuant to the requirements thereof, the Contracting Officer must have a right to demand that said work be performed under the Performance Bond by making written notice on the surety. If the surety fails or refuses to perform the obligation it assumed under the Performance Bond, the Contracting Officer must have the work performed by others, and after completion of the work, must make demand for reimbursement of any or all expenses incurred by the Government while performing the work, including, but not limited to administrative expenses.

c. The warranty period for the work performed under this Contract must be one year from the date of acceptance of the project by the Government.

Warranty repair work must be handled by the Contractor on an immediate basis as directed verbally by the Contracting Officer or his authorized representative. Written verification must follow verbal instructions.

Failure of the Contractor to respond as verbally directed will be cause for the Contracting Officer to have the warranty repair work performed by others and to proceed against the Contractor as outlined in the paragraph b above.

In connection with these requirements and at the time of the Contractor's quality control completion inspection, the Contractor must furnish the name, telephone number and address of a licensed and bonded company which is authorized to initiate and pursue warranty work action on behalf of the Contractor. This single point of contact must be located within the local service area of the warranted construction, be continuously available, and must be responsive to Government inquiry on warranty work action and status.

1.20 PROJECT SURVEYS

Contractor must perform both a pre-construction and post-construction top of levee survey every 25 feet along the entire length of Reach A.