RFP Bulkhead Repair Project May 10 2024.pdf

GEORGIA WORLD CONGRESS CENTER AUTHORITY

ON BEHALF OF THE SAVANNAH CONVENTION CENTER

REQUEST FOR PROPOSALS

RFP # GWCCA051024EC

BULKHEAD REPAIR PROJECT

SECTION 01000

PROCUREMENT OBJECTIVE

1. Summary Statement

Notice is hereby given the Savannah-Georgia Convention Center Authority (hereafter referred to as “Authority” or “Owner”) is soliciting competitive sealed proposals for bulkhead repair services related to fill loss at Tomochichi square and Bulkhead at slip 3.

This procurement will be for the Savannah Convention Center located in Savannah Georgia. The contract, if awarded, will be administrated by the Savannah Convention Center Operations Department or other designee, located at One International Drive, Savannah, Georgia, 31402.

All respondents to this RFP are subject to instructions communicated in this document and are cautioned to completely review the entire RFP and follow instructions carefully. The Authority retains the right to reject any or all submittals and/or proposals, and to waive technicalities, irregularities, and informalities, and retains the right to cancel or conclude this procurement at any time without selecting a firm to provide the described services, without any liability to any respondents, or any other person or entity, and is under no obligation to make an award relating to this RFP to any person or entity. The final terms of any Agreement for the project contemplated by this procurement will be determined by the Authority, subject, in all cases, to strict compliance with the applicable provisions of the laws of the State of Georgia.

A. IMPORTANT- A RESTRICTION OF COMMUNICATION IS IN EFFECT FOR THIS PROJECT.

From the time of advertisement of this solicitation until final award is made to a successful respondent and such award is announced, interested firms are not allowed or permitted to communicate about this solicitation or scope with any staff or any official representatives of the Authority, GWCC, or other facilities of the Authority, or their consultants, except for submission of questions as instructed in the RFP, or as provided by any existing work agreement(s). Apparent Awardee(s) are restricted from making public statements or press releases about their selection as finalists or their apparent award.

For violation of this restriction, the Authority reserves the right to reject the submittal of the offending respondent.

2. Issuing Officer and Authority Contract

This RFP is being issued by the Georgia World Congress Center Authority, which is the only office authorized to change, modify, clarify, etc., the provisions of this RFP and to award any contract(s) resulting from the RFP.

The Issuing Officer and sole point of contact for administrative and technical issues regarding this RFP is:

Erle Coleman, Issuing Officer

Georgia World Congress Center Authority 285 International Boulevard, NW

Atlanta, Georgia 30313-1591 Telephone: (404) 223-4244

E-mail: ecoleman@gwcc.com

The Issuing Officer may designate others to act on his/her behalf. The Authority may change the Issuing Officer or the limits of his/her authority at its discretion.

3. Mandatory Pre-Proposal Conference/Site Visits The Mandatory Proposal Conference/Site Visit will be held: May 22, 2024 at 10:00 AM mailto:ecoleman@gwcc.com

Savannah Convention Center Jasper Boardroom One International Drive Savannah, GA. 31402-0248

Late arrivals shall be subject to dismissal, all vendors are cautioned to arrive on time. Attendance at Pre-Proposal Conference/Site is mandatory from start to finish to be eligible to submit proposal(s). A maximum of two (2) representatives from each firm may attend. Directions to the facility is available at www.savconventioncentercom. For information regarding this conference contact the Ronnie Hickman at 912-447-4070, Ronnie Hickman. All potential respondents are encouraged to have a copy(ies) of this solicitation for the Pre-Proposal Conference, as copies are not guaranteed to be available.

The purpose of this conference will be to clarify the contents of this Request for Proposal in order to help ensure a thorough understanding of the Authority’s requirements. Any questions as to the requirements of this Request for Proposal, or any apparent omission or discrepancy should be presented to the Authority’s representatives at this conference. This conference also provides a forum by which interested parties will have equal access to relevant RFP information prior to the final proposal submission.

4. Schedule of RFP Events The following Schedule of Events represents the Authority’s best estimate of the schedule that will be followed. All times indicated are Eastern Standard Time. The Authority reserves the right to adjust the schedule as deemed necessary. If a component of this schedule, such as the close date, is delayed, the rest of the schedule may be shifted as appropriate.

5. Obtaining Proposal Documents

The complete RFP package Documents, scope of work, proposal form and associated Addendum (if issued) will be PUBLICLY POSTED on the GEORGIA PROCUREMENT REGISTRY at the following web address (and may be directly downloaded using Acrobat 7.0):

https://ssl.doas.state.ga.us/PRSapp/PR_index.jsp.

6. Proposal Submission and Deadline Proposals are to be addressed and delivered, on or before the submission deadline, as follows:

One (1) Original (Clearly Marked), Five (5) copies and One (1) USB Drive containing a complete copy of solicitation response to:

Event Date Time

a. Authority issues RFP 5/10/24

b. Mandatory Proposal Conference/Site Visit

5/22/24 10:00AM

c. Deadline for submission of written questions and requests for clarification 5/24/24 2:00PM

d. Answers to questions posted 5/29/24 2:00PM

e. Deadline for submission of Proposals 6/11/24 10:00AM http://www.savconventioncentercom/ https://ssl.doas.state.ga.us/PRSapp/PR_index.jsp

Georgia World Congress Center Authority Purchasing Department 285 Andrew Young International Boulevard Atlanta, Georgia 30313 Attn: Erle Coleman, Issuing Officer

All copies of the proposal shall be submitted in a sealed, opaque envelope or box, words “SEALED PROPOSAL”, RFP # GWCCA051024EC Bulkhead Repair Project clearly indicated, along with Proposer’s name and address, on the outside of all the sealed envelope(s) and/or box(es). No telephone, email, or facsimile proposals will be considered.

Sealed proposals sent by courier, mail, etc., should be addressed to the Issuing Officer and should be received no later than the proposal deadline (June 11, 2024, by 10:00 am).

Proposers are solely responsible for ensuring delivery of proposals to, and in the hands of, the Issuing Officer by the date and time indicated. The mere fact that the proposal was dispatched or mailed may not be considered. Any proposal received after the date and time specified or improperly marked, prepared, or submitted may not be eligible for consideration and may be returned unopened. Proposals will not be publicly opened.

7. Duration of Offer

Once submitted, a proposal becomes the property of the Authority and constitutes an offer by the Proposer that may not be revoked or withdrawn after the time set for deadline for receipt of proposals and shall remain open for acceptance for a period of One Hundred and Twenty (120) days following such time, and thereafter only in writing.

END OF SECTION

SECTION 01100

BACKGROUND and INTENT

General Information

1. Organizational Context

The Georgia World Congress Center Authority (GWCCA) campus, which includes Georgia World Congress Center, Centennial Olympic Park, Mercedes-Benz Stadium, and Signia by Hilton Atlanta, is the largest combined convention, sports, and entertainment campus in North America. Since 2014, GWCCA has managed and operated the Savannah Convention Center (SCC) – marking the industry’s first-ever private-to-public facility management agreement.

These facilities exist for the primary benefit of promoting and facilitating events and activities that generate economic benefits to the citizens of the state of Georgia as well as enhance the quality of life for every Georgian.

Georgia World Congress Center

Georgia World Congress Center is the largest LEED Gold certified convention center in the world and continues to be one of the nation’s premier destinations for conventions, trade shows, film production, and much more. GWCC encompasses 3.9 million square feet and is among the largest convention centers in the nation in terms of exhibit space. GWCC features 13 exhibit halls offering 1.5 million square feet of prime exhibit space in addition to 98 meeting rooms, 3 auditoriums, 2 grand ballrooms, and various outdoors spaces and plazas. Georgia International Plaza includes a parking deck and pedestrian plaza on Andrew Young International Boulevard adjacent to Georgia World Congress Center and Mercedes-Benz Stadium.

Centennial Olympic Park Commemorating the 1996 Centennial Olympic Games, Centennial Olympic Park (COP) is a 22-acre urban oasis in the center of Atlanta’s dynamic downtown entertainment district and is operated by Georgia World Congress Center Authority. COP’s great lawn provides natural seating for 20,000 and new features make it the ideal location for a variety of events. Centennial Olympic Park is located adjacent to the Georgia World Congress Center.

Mercedes-Benz Stadium/The Home Depot Backyard The 71,000-seat Mercedes-Benz Stadium (MBS) is home to the Atlanta Falcons and Atlanta United and annually hosts the AFLAC Kickoff Game, Chick-fil-A Peach Bowl, SEC Football Championship Game along with other special events and concerts that provide fans with an unparalleled experience while contributing to the economic growth and success of Atlanta and the state of Georgia. Sitting in the former footprint of the Georgia Dome, The Home Depot Backyard functions as a fan experience zone and parking lot during events at MBS, and as greenspace open to the public on non-event days.

Savannah Convention Center

In 2014, the Georgia International Maritime and Trade Center Authority (now Savannah-Georgia Convention Center Authority) approved the selection of GWCCA to manage and operate the Savannah International Trade & Convention Center – today known as Savannah Convention Center (SCC) – marking the industry’s first-ever private-to-public facility management agreement.

The 330,000-square-foot SCC currently features 100,000 square feet of exhibit space, a 367-seat auditorium, 50,000 square feet of prime meeting space consisting of 13 meeting rooms, a 25,000-square-foot Grand Ballroom, and four executive board rooms. In fiscal year 2020, the Georgia General Assembly approved $70M in bonds for an expansion project that will double the exhibit hall space as well as offer a 40,000 square-foot ballroom, 15 new meetings rooms, and a 900-space parking deck. The SCC expansion project broke ground in March 2021.

Signia by Hilton Atlanta

Owned by GWCCA and managed by Hilton Management Services, Signia by Hilton Atlanta is the city’s largest downtown ground-up hotel development project in 40 years. The 453-foot-high, 976-room hotel overlooks Mercedes-Benz Stadium and is connected to Georgia World Congress Center’s Building C. Signia by Hilton Atlanta offers more than 100,000 square feet of meeting space, including the largest hotel ballroom in Georgia, an outdoor event deck and lawn, and three boardrooms. The hotel also features eight signature food and beverage experiences, including three restaurants and three bars, as well as world-class amenities, including a spa, beauty bar and fitness center with yoga stations, Peloton bikes and more.

The Authority enjoys a strong service reputation based upon our ability to provide a superior facility and related services. The following Request for Proposals will be used to select an organization to partner with the Authority to deliver a service to our customers in a manner that complements our ongoing operations and commitment to excellence.

2. Intent

The Savannah-Georgia Convention Center Authority will consider proposals from qualified and experienced firms ordinarily engaged in the business of providing professional design and engineering services for bulkhead repair, as described herein and in accordance with the terms, conditions, and requirements set forth in this Request for Proposal (RFP). The Authority intends to make a single award to the highest scored proposer (s) meeting all requirements herein but reserves the right to make a split award if deemed in the best interest of the State.

END OF SECTION

Savannah, Georgia

A/E Project No. 222909 General Provisions -Site Work 02000

SECTION 02000

GENERAL PROVISIONS – SITE WORK

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Section specifies general requirements affecting sitework specified in other Division 2 Sections.

1.2. QUALITY CONTROL

A. The Contractor shall be responsible for ensuring the quality of his work meets or exceeds the minimum standards specified in this and other sections of the specifications. He shall provide the necessary technical control and testing to accomplish this through contracting (at Contractor's expense) with an independent testing laboratory.

B. The Contractor’s testing agency shall conform to ASTM E329 and all its referenced documents except as herein modified.

Article 6.2.1 shall be revised to allow the individual charged with managerial responsibility of the agency to be a person with equivalent science-oriented education and 5 years of experience in having satisfactorily directed testing or inspection services, or both, of construction materials.

C. The Contractor must coordinate daily with the Owner’s testing laboratory to ensure that all required Quality Control testing is scheduled and performed, as required in the Specifications.

Requirements for notification of readiness for testing shall be coordinated prior to commencing construction.

1.3 PROJECT CONDITIONS

A. Soil Conditions: Verify accuracy and completeness of site topography, topographic maps, and other topographic or soil data provided. Make additional investigations to be familiar with site topography and subsurface soil conditions.

B. Protection:

1. Barricade and protect existing structures and properties located within and adjacent to the limits of work except those indicated to be removed, salvaged, or demolished.

2. Existing Structures and Utilities: The existence and location of underground structures and underground utilities indicated on the plans are not guaranteed and shall be investigated and verified in the field by the Contractor before starting work. The contractor shall be responsible for maintenance and protection of existing underground utilities and structures regardless of whether or not they are shown on the plans.

3. Maintenance and Protection of Traffic: Keep to minimum the inconvenience to property owners and to those traveling the roadways along which utilities are to be laid. Mark all traffic hazards with signs, warning devices, and flagmen as required by the State Highway

Department, or as necessary to warn of earth placed on shoulders, construction work in progress or any hazard near the roadway. The Contractor shall be responsible for any damage caused by his operations.

Savannah, Georgia

A/E Project No. 222909 General Provisions -Site Work 02000

4. Restoration of Private and Public Property Damaged: Restore all pavement, grassed areas, fences, walls, signs, shrubbery, terraces, and embankments to their original condition, if such items are damaged in the course of the Work. Exert care to prevent damage to trees growing on private property near the roadway rights-of-way. Do not disturb trees or shrubbery along roadways or property boundaries unless absolutely necessary and approved by the

Engineer. Upon construction activity, the Contractor shall restore the site to project start conditions ensuring proper drainage and providing sod in any unpaved disturbed areas.

5. Monuments: Protect and prevent the destruction of survey monuments, benchmarks, property corners, or other survey points. Do not disturb point without written approval.

Record relocation of reference points prior to disturbance. Only licensed surveyors registered in State where Work is performed shall relocate monuments.

6. Work: Assume responsibility for Work and protection of Work. Provide additional grading to prevent damage to Work by water (surface runoff) at no additional cost.

1.4. SUBSURFACE CONDITIONS

A. The Contractor is responsible for visiting the site and making subsurface investigations as necessary to perform the work specified and indicated on the plans.

***End of Section***

Savannah, GA

A/E Project No. 222909 Site Demolition 02220

SECTION 02220

SITE DEMOLITION

PART 1 – GENERAL

1.1 SUMMARY

The work under this section includes project provisions for site demolition which includes, but is not limited to, pavement removal, water distribution system removal, sanitary sewer system removal, electrical and communications facilities removal, high mast lighting removal, stormwater infrastructure removal, building structure removal, and other miscellaneous items to facilitate the completion of the proposed project. The Contractor shall furnish all labor, equipment, and utilities to complete the work as indicated on the project drawings and as specified herein.

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only. The most recent version of each publication shall be used.

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI A 10.6 Safety Requirements for Demolition Operations

U.S. ARMY CORPS OF ENGINEERS (USACE)

COE EM 385-1-1 Safety and Health Requirements Manual

1.3 GENERAL REQUIREMENTS

Do not begin demolition until authorization is received from the Owner daily. The work includes demolition, salvage of identified items and materials, and removal of resulting rubbish and debris.

Remove rubbish and debris from Savannah Convention Center property daily unless otherwise directed. Store materials that cannot be removed daily in areas specified by the Owner. In the interest of occupational safety and health, perform the work in accordance with EM 385-1-1, Section 23, Demolition, and other applicable Sections.

1.3.1 The Contractor shall be responsible for visiting and examining the project site to assess the extent of demolition, removal and general work to be done.

1.4 ITEMS TO REMAIN IN PLACE

Take necessary precautions to avoid damage to existing items to remain in place, to be reused, or to remain the property of the Owner. Repair or replace damaged items as approved by the Owner. Coordinate the work of this section with all other work indicated. Construct and maintain shoring, bracing, and supports as required. Ensure that structural elements are not overloaded.

Increase structural supports or add new supports as may be required as a result of any cutting, removal, deconstruction, or demolition work performed under this contract. Do not overload pavements to remain. Provide new supports and reinforcement for existing construction weakened by demolition, deconstruction, or removal work. Repairs, reinforcement, or structural replacement require approval by the Owner prior to performing such work.

A/E Project No. 222909 Site Demolition

1.4.1 Existing Construction Limits and Protection

Do not disturb existing construction beyond the extent indicated or necessary for installation of new construction. Provide temporary shoring and bracing for support of building components to prevent settlement or other movement. Provide protective measures to control accumulation and migration of dust and dirt in all work areas. Remove dust, dirt, and debris from work areas daily.

1.4.2 Trees

Protect trees within the project site which might be damaged during demolition or deconstruction, and which are indicated to be left in place, by a 4 foot high fence. Erect and secure fence at the limits of the tree’s critical root zone (a radius of one foot per inch of tree’s diameter at breast height). Replace any tree designated to remain that is damaged during the work under this contract with like-kind or as approved by the Owner.

1.4.3 Utility Service

Maintain existing utilities indicated to stay in service and protect against damage during demolition operations.

1.4.4 Facilities

Protect electrical and mechanical services and utilities. Where removal of existing utilities and pavement is specified or indicated, provide approved barricades, temporary covering of exposed areas, and temporary services or connections for electrical and mechanical utilities. Ensure that no elements determined to be unstable are left unsupported and place and secure bracing, shoring, or lateral supports as may be required as a result of any cutting, removal, or demolition work performed under this contract.

1.5 BURNING

The use of burning at the project site for the disposal of refuse and debris will not be permitted.

1.6 SUBMITTALS

The following shall be submitted in accordance with Section 01300, "Submittals."

1.6.1 Statements

A. Demolition Plan

Submit proposed demolition and removal procedures for approval before work is started. The Demolition Plan shall include coordination with other work in progress, a disconnection schedule and procedure for utility systems and a detailed description of methods and equipment to be used for each operation and the sequence of operations. Include statements affirming a Contractor inspection of the existing work areas and their components and the suitability to be demolished or if inspection reveals a safety hazard to workers. Contractor shall state provisions for securing the safety of the workers throughout the performance of the work. Provide procedures for safe conduct of the work in accordance with COE EM 385-1-1

A/E Project No. 222909 Site Demolition

1.7 DUST AND DEBRIS CONTROL

Prevent the spread of dust and debris and avoid the creation of a nuisance or hazard in the surrounding area. Do not use water if it results in hazardous or objectionable conditions such as, but not limited to, ice, flooding, or pollution.

1.8 PROTECTION

1.8.1 Traffic Control Signs

Where pedestrian and driver safety are endangered in the area of removal work, mark all hazards with signs, traffic barricades and flagmen as necessary to warn of construction work in progress. Anchor barricades in a manner to prevent displacement by wind. The Contractor shall be responsible for any damage caused by his operations. It is anticipated that at a minimum the Contractor shall provide reflective barrels with lights at the edge of the required demolition. Notify the Owner prior to beginning such work.

1.8.2 Protection of Personnel

Before, during, and after the demolition work continuously evaluate the condition of the structure being demolished and take immediate action to protect all personnel working in and around the project site.

1.8.3 Work

Assume responsibility for all demolition work and protection of demolition work. Provide additional grading, as necessary, to prevent damage to demolition work by water (surface runoff) at no additional cost to the Owner.

1.9 RELOCATIONS

Perform the removal and reinstallation of relocated items as indicated with workmen skilled in the trades involved. Repair or replace items to be relocated which are damaged by the Contractor with new undamaged items as approved by the Owner.

1.10 REGULATORY AND SAFETY REQUIREMENTS

Comply with federal, state, and local hauling and disposal regulations. In addition to the requirements of the “Contract Clauses,” conform to the safety requirements contained in ANSI A10.6.

1.11 ENVIRONMENTAL PROTECTION

Comply with all local, state, and federal environmental protection requirements and with the requirements of Section 01530, “Environmental, Safety, & Health.”

1.12 USE OF EXPLOSIVES

Use of explosives will not be permitted.

PART 2 – PRODUCTS

2.1 EQUIPMENT

Choice of equipment to perform specified operations is the responsibility of the Contractor.

A/E Project No. 222909 Site Demolition

2.2 FILL MATERIAL

Comply with excavating, backfilling, and compacting procedures for soils used as backfill material to fill voids, depressions or excavations resulting from demolition of structures. See Section 02300 “Earthwork.”

PART 3 – EXECUTION

3.1 EXISTING FACILITIES TO BE REMOVED

Inspect and evaluate existing structures onsite for reuse. Existing construction scheduled to be removed for reuse shall be disassembled. Dismantled and removed materials are to be separated, set aside, and prepared as specified, and stored or delivered to a collection point for reuse, remanufacture, recycling, or other disposal, as specified. Materials shall be designated for reuse onsite whenever possible.

3.1.1 Structures

Remove existing structures indicated to be removed.

3.1.2 Utilities and Related Equipment

3.1.2.1 General Requirements

Do not interrupt existing utilities serving facilities occupied and used by the Owner except when approved in writing and then only after temporary utility services have been approved and provided. Do not begin demolition or deconstruction work until all utility disconnections have been made. Shut off and cap utilities for future use, as indicated.

3.1.2.2 Disconnecting Existing Utilities

Remove existing utilities as indicated and terminate in a manner conforming to the nationally recognized code covering the specific utility and approved by the Owner. When utility lines are encountered but are not indicated on the drawings, notify the Owner prior to further work in that area. Remove meters and related equipment and deliver to a location in accordance with instructions of the Owner.

3.1.3 Chain Link Fencing

Remove chain link fencing, gates and other related salvaged items scheduled for removal and transport to designated areas. Remove gates as whole units. Cut chain link fabric to 25 foot lengths and store in rolls off the ground.

3.1.4 Paving and Slabs

Remove concrete and asphaltic concrete paving and slabs as indicated. Provide and maintain neat sawcuts at limits of pavement removal as indicated.

3.1.5 Concrete

Saw concrete along straight lines to a depth of a minimum 2 inch. Break out the remainder of the concrete provided that the broken area is concealed in the finished work, and the remaining concrete is sound. At locations where the broken face cannot be concealed, grind smooth or saw cut entirely through the concrete.

A/E Project No. 222909 Site Demolition

3.1.6 Patching

Where removals leave holes and damaged surfaces exposed in the finished work, patch and repair these holes and damaged surfaces to match adjacent finished surfaces. Where new work is to be applied to existing surfaces, perform removals and patching in a manner to produce surfaces suitable for receiving new work. Finished surfaces of patched area shall be flush with the adjacent existing surface and shall match the existing adjacent surface as closely as possible as to texture and finish.

3.2 CONCURRENT EARTH-MOVING OPERATIONS

Do not begin excavation, filling, and other earth-moving operations that are sequential to demolition work in areas occupied by structures to be demolished until all demolition in the area has been completed and debris removed. Fill holes and other hazardous openings.

3.3 DISPOSITION OF MATERIAL

3.3.1 Title to Materials

Except for salvaged items specified in related Sections, and for materials or equipment scheduled for salvage, all materials and equipment removed and not reused or salvaged, shall become the property of the Contractor and shall be removed from Savannah Convention Center property.

Title to materials resulting from demolition, and materials and equipment to be removed, is vested in the Contractor upon approval by the Owner of the Contractor's Demolition Plan and authorization by the Owner to begin demolition. The Owner will not be responsible for the condition or loss of, or damage to, such property after contract award. Showing for sale or selling materials and equipment on site is prohibited.

3.3.2 Reuse of Materials and Equipment

Remove and store materials and equipment indicated to be reused or relocated to prevent damage and reinstall as the work progresses.

3.3.3 Salvaged Materials and Equipment

Remove materials and equipment that are indicated to be removed by the Contractor and that are to remain the property of the Savannah Convention Center and deliver to a storage site as directed.

A. Salvage items and materials to the maximum extent possible.

B. Store all materials salvaged for the Contractor as approved by the Owner and remove from

Savannah Convention Center property before completion of the contract. On-site sales of salvaged material is prohibited.

C. Remove salvaged items to remain the property of the Savannah Convention Center in a manner to prevent damage. Items damaged during removal or storage must be repaired or replaced to match existing items.

3.4 CLEANUP

A/E Project No. 222909 Site Demolition 02220

Remove debris and rubbish from excavations. Remove and transport the debris in a manner that prevents spillage on streets or adjacent areas. Apply local regulations regarding hauling and disposal.

3.5 DISPOSAL OF REMOVED MATERIALS

3.5.1 Regulation of Removed Materials

Dispose of debris, rubbish, scrap, and other non-salvageable materials resulting from removal operations with all applicable federal, state, and local regulations as contractually specified.

Storage of removed materials on the project site is prohibited.

3.5.2 Burning on Owner Property

Burning of materials removed from demolished structures will not be permitted.

3.5.3 Removal from Owner Property

Transport waste materials removed from demolished structures from Owner’s property for legal disposal.

***End of Section 02220***

A/E Project No. 222909 Clearing and Grubbing 02231

SECTION 02231

CLEARING AND GRUBBING

PART 1 – GENERAL

Work under this section includes requirements for clearing and grubbing the project area as indicated on the drawings. The work of this section shall include, but not be limited to, clearing and disposing of all trees, stumps, shrubbery growth, roots, and other vegetation within the project limits. The Contractor shall furnish all labor, equipment, and utility to complete the work as indicated on the project drawings and as specified herein.

1.2 SITE CONDITIONS

The Contractor shall be responsible for visiting and examining the project site to assess the extent of clearing and grubbing work to be done.

NOT USED

3.1 LIMITS OF SITE CLEARING AND GRUBBING

The Contractor shall perform site clearing to the limits of the work area shown on the drawings.

Contractor shall install tree protection fencing, if required, and have it approved by the Owner prior to proceeding with clearing and grubbing. Contractor shall take appropriate measures to ensure trees identified in any tree protection area are protected. Do not disturb any of the trees within the protection area.

3.2 PROTECTION

3.2.1 Roads and Walks

Keep roads and walks free of dirt and debris at all times.

3.2.2 Trees, Shrubs, and Existing Facilities

Trees and vegetation to be left standing shall be protected from damage incident to clearing, grubbing, and construction operations by the erection of barriers or by such other means as the circumstances require. Contractor shall coordinate with Owner after installation of tree protection fencing to confirm proper location and understanding of importance for minimizing impacts of construction operations on trees to remain onsite. Do not disturb any trees within tree protection areas.

3.2.3 Utility Lines

Protect existing utility lines that are indicated to remain from damage. Notify the Owner immediately of damage to or an encounter with an unknown existing utility line. The Contractor is responsible for the repairs of damage to existing utility lines that are indicated or made known to the Contractor prior to start of clearing and grubbing operations. When utility lines that are to be

A/E Project No. 222909 Clearing and Grubbing 02231 removed are encountered within the area of operations, notify the Owner in ample time to minimize interruption of the service.

3.3 CLEARING

Clearing shall consist of the felling, trimming, and cutting of trees into sections and the satisfactory disposal of the trees and other vegetation designated for removal by the Owner and per the construction drawings, including downed timber, snags, brush, and rubbish occurring within the areas to be cleared. Clearing shall also include the removal and disposal of structures that obtrude, encroach upon, or otherwise obstruct the work. Trees, stumps, roots, brush, and other vegetation in areas to be cleared shall be cut off flush with or below the original ground surface.

3.4 TREE REMOVAL

Where indicated or directed, trees and stumps that are designated as trees shall be removed from areas outside those areas designated for clearing and grubbing. This work shall include the felling of such trees and the removal of their stumps and roots as specified in paragraph GRUBBING. Trees shall be disposed of as specified in paragraph DISPOSAL OF MATERIALS.

Any trees removed beyond those identified shall be replaced in kind at the Contractor's expense.

3.5 GRUBBING

Grubbing shall consist of the removal and disposal of stumps, roots larger than 3 inches in diameter, and matted roots from the designated grubbing areas. Material to be grubbed, together with logs and other organic or metallic debris not suitable for foundation purposes, shall be removed to a depth of not less than 18 inches below the original surface level of the ground in areas indicated to be grubbed and in areas indicated as construction areas under this contract, such as areas for buildings, and areas to be paved. Depressions made by grubbing shall be filled with suitable material and compacted to make the surface conform with the original adjacent surface of the ground.

3.6 DISPOSAL OF MATERIALS

3.6.1 Saleable Timber

All timber on the project site noted for clearing and grubbing shall become the property of the Contractor and shall be removed from the project site and disposed of off the project site.

3.6.2 Nonsaleable Materials

Logs, stumps, roots, brush, rotten wood, and other refuse from the clearing and grubbing operations shall be disposed of off the project site at the Contractor's responsibility. Burning at the project site for the disposal of refuse and debris will not be permitted.

***End of Section 02231***

A/E Project No. 222909 Earthwork 02300

SECTION 02300

EARTHWORK

PART 1 - GENERAL

The work under this section consists, in general, of furnishing all labor, materials, tools, equipment, and incidentals for providing for the excavation, backfilling, and compacting of all structures, utilities, and pavements in the non-landfill area as indicated on the project drawings and specified herein.

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only. The most recent version of each publication shall be used.

AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION

OFFICIALS (AASHTO)

AASHTO T 180 Standard Method of Test for Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and a 457-mm (18-in.) Drop

AASHTO T 224 Standard Method of Test for Correction for Coarse Particles in the Soil

Compaction Test

ASTM INTERNATIONAL (ASTM)

ASTM C136 Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates

ASTM D1140 Amount of Material in Soils Finer than the No. 200 (75-micrometer) Sieve

ASTM D1556 Density and Unit Weight of Soil in Place by the Sand-Cone Method

ASTM D1557 Standard Test Methods for Laboratory Compaction Characteristics of

Soil Using Modified Effort (56,000 ft-lbf/ft3) (2700 kN-m/m3)

ASTM D2487 Soils for Engineering Purposes (Unified Soil Classification System)

ASTM D422 Particle-Size Analysis of Soils

ASTM D4318 Liquid Limit, Plastic Limit, and Plasticity Index of Soils

ASTM D6938 Standard Test Method for In-Place Density and Water Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth)

ASTM D698 Laboratory Compaction Characteristics of Soil Using Standard Effort

(12,400 ft-lbf/cu. ft. (600 kN-m/cu. m.))

U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA)

EPA 600/4-79/020 Methods for Chemical Analysis of Water and Wastes

EPA SW-846.3-3 Test Methods for Evaluating Solid Waste: Physical/Chemical Methods

1.3 DEFINITIONS

1.3.1 Satisfactory or Suitable Materials

Satisfactory materials comprise any materials classified by ASTM D2487 as GW, GP, GM, GP- GM, GW-GM, SW, SP, and SM. The plasticity index shall not be greater than 10 percent when tested in accordance with ASTM D 4318, and not more than 25 percent by weight shall be finer than No. 200 sieve when tested in accordance with ASTM D 1140. Satisfactory materials for grading comprise stones less than 8 inches, except for fill material for pavements and railroads which comprise stones less than 3 inches in any dimension.

1.3.2 Unsatisfactory Materials

Materials which do not comply with the requirements for satisfactory materials are unsatisfactory.

Unsatisfactory materials also include man-made fills; trash; refuse; backfills from previous construction; and material classified as satisfactory which contains root and other organic matter or frozen material. Notify the Owner when encountering any contaminated materials.

1.3.3 Cohesionless and Cohesive Materials

Cohesionless materials include materials classified in ASTM D2487 as GW, GP, SW, and SP.

Cohesive materials include materials classified as GC, SC, ML, CL, MH, and CH. Materials classified as GM and SM will be identified as cohesionless only when the fines are nonplastic.

Perform testing, required for classifying materials, in accordance with ASTM D4318, ASTM C136, ASTM D422, and ASTM D1140.

1.3.4 Degree of Compaction

Degree of compaction required, except as noted in the second sentence, is expressed as a percentage of the maximum density obtained by the test procedure presented in ASTM D1557 abbreviated as a percent of laboratory maximum density. Since ASTM D1557 applies only to soils that have 30 percent or less by weight of their particles retained on the 3/4 inch sieve, express the degree of compaction for material having more than 30 percent by weight of their particles retained on the 3/4 inch sieve as a percentage of the maximum density in accordance with AASHTO T 180 and corrected with AASHTO T 224. To maintain the same percentage of coarse material, use the "remove and replace” procedure as described in NOTE 8 of Paragraph 7.2 in

AASHTO T 180.

1.3.5 Topsoil

Material suitable for topsoils obtained from offsite and onsite areas, or excavations is defined as:

Natural, friable soil representative of productive, well-drained soils in the area, free of subsoil, stumps, rocks larger than one inch diameter, brush, weeds, toxic substances, and other material detrimental to plant growth. Amend topsoil pH range to obtain a pH of 5.5 to 7.

1.3.6 Hard/Unyielding Materials

Hard/Unyielding materials comprise weathered rock, dense consolidated deposits, or conglomerate materials which are not included in the definition of "rock" with stones greater than 8 inch in any dimension or as defined by the pipe manufacturer, whichever is smaller. These materials usually require the use of heavy excavation equipment, ripper teeth, or jack hammers for removal.

1.3.7 Rock

Solid homogeneous interlocking crystalline material with firmly cemented, laminated, or foliated masses or conglomerate deposits, neither of which can be removed without systematic drilling and blasting, drilling and the use of expansion jacks or feather wedges, or the use of backhoe-mounted pneumatic hole punchers or rock breakers; also large boulders, buried masonry, or concrete other than pavement exceeding 1/2 cubic yard in volume. Removal of hard material will not be considered rock excavation because of intermittent drilling and blasting that is performed merely to increase production.

1.3.8 Unstable Material

Unstable materials are too wet to properly support the utility pipe, conduit, or appurtenant structure.

1.3.9 Select Material

1.3.9.1 General Requirements

Select granular material consisting of materials classified as GW, GP, SW, SP, by ASTM D2487 where indicated. The plasticity index must not be greater than 5 percent when tested in accordance with ASTM D4318, and not more than 10 percent by weight may be finer than No.

200 sieve when tested in accordance with ASTM D1140.

1.4 SYSTEM DESCRIPTION

Subsurface soil boring logs are in the geotechnical report. These data represent the best subsurface information available; however, variations may exist in the subsurface between boring locations. Contractor is responsible for making any additional subsurface investigations as necessary to perform the specified work.

1.4.1 Classification of Excavation

No consideration will be given to the nature of the materials, and all excavation will be designated as unclassified excavation.

1.4.2 Dewatering Work Plan

Submit procedures for accomplishing dewatering work.

1.5 SUBMITTALS

Submit the following in accordance with Section 01300 "SUBMITTALS”:

A. Preconstruction Submittals

1. Shoring

2. Dewatering Work Plan

Submit 15 days prior to starting work.

B. Test Reports

1. Testing

2. Borrow Site Testing

Within 24 hours of conclusion of physical tests, 3 copies of test results, including calibration curves and results of calibration tests.

C. Certificates

1. Testing

2. Qualifications of the independent testing laboratory for approval.

1.6 CRITERIA FOR BIDDING

Base bids on the following criteria:

A. Surface elevations are as indicated.

B. Pipes or other artificial obstructions, except those indicated, will not be encountered.

C. Ground water elevations indicated by the boring log were those existing at the time subsurface investigations were made and do not necessarily represent ground water elevation at the time of construction.

D. Material character is indicated by the boring logs.

2.1 REQUIREMENTS FOR OFFSITE SOILS

Contaminated soils shall not be brought on site. The fill material shall be classified as SP, SW, SM, or SC in accordance with ASTM D 2487 and have a fines content (percent passing #200 sieve) less than 30% by weight when tested in accordance with ASTM D 422. Maximum particle size shall be 4 inches. Test offsite soils brought in for use as backfill for Total Petroleum Hydrocarbons (TPH), Benzene, Toluene, Ethyl Benzene, and Xylene (BTEX) and full Toxicity Characteristic Leaching Procedure (TCLP) including ignitability, corrosivity and reactivity. Backfill shall contain less than 100 parts per million (ppm) of total petroleum hydrocarbons (TPH) and less than 10 ppm of the sum of Benzene, Toluene, Ethyl Benzene, and Xylene (BTEX) and shall pass the TC LP test.

Determine TPH concentrations by using EPA 600/4-79/020 Method 418.1. Determine BTEX concentrations by using EPA SW-846.3-3 Method 5030/8020. Perform TCLP in accordance with

EPA SW-846.3-3 Method 1311. Provide Borrow Site Testing for TPH, BTEX and TCLP from a composite sample of material from the borrow site, with at least one test from each borrow site. Do not bring material onsite until tests have been approved by the Owner.

2.2 BURIED WARNING AND IDENTIFICATION TAPE

Provide polyethylene plastic and metallic core or metallic-faced, acid- and alkali-resistant, polyethylene plastic warning tape manufactured specifically for warning and identification of buried utility lines. Provide tape on rolls, 3 inches minimum width, color coded as specified below for the intended utility with warning and identification imprinted in bold black letters continuously over the entire tape length. Warning and identification to read, "CAUTION, BURIED (intended service) LINE BELOW" or similar wording. Provide permanent color and printing, unaffected by moisture or soil.

Warning Tape Color Codes

Red: Electric

Yellow: Gas, Oil; Dangerous Materials Orange: Telephone and Other Communications Blue: Water Systems Green: Sewer Systems

2.2.1 Warning Tape for Metallic Piping

Provide acid and alkali-resistant polyethylene plastic tape conforming to the width, color, and printing requirements specified above, with a minimum thickness of 0.003 inch and a minimum strength of 1500 psi lengthwise, and 1250 psi crosswise, with a maximum 350 percent elongation.

2.2.2 Detectable Warning Tape for Non-Metallic Piping

Provide polyethylene plastic tape conforming to the width, color, and printing requirements specified above, with a minimum thickness of 0.004 inch, and a minimum strength of 1500 psi lengthwise and 1250 psi crosswise. Manufacture tape with integral wires, foil backing, or other means of enabling detection by a metal detector when tape is buried up to 3 feet deep. Encase metallic element of the tape in a protective jacket or provide with other means of corrosion protection.

2.3 DETECTION WIRE FOR NON-METALLIC PIPING

Insulate a single strand, solid copper detection wire with a minimum of 12 AWG.

3.1 STRIPPING OF TOPSOIL

Where indicated or directed, strip topsoil to a depth of 6 inches. Spread topsoil on areas already graded and prepared for topsoil, or transported and deposited in stockpiles convenient to areas that are to receive application of the topsoil later, or at locations indicated or specified. Keep topsoil separate from other excavated materials, brush, litter, objectionable weeds, roots, stones larger than 2 inches in diameter, and other materials that would interfere with planting and maintenance operations. Remove from the site any surplus of topsoil from excavations and gradings.

3.2 GENERAL EXCAVATION

Perform excavation of every type of material encountered within the limits of the project to the lines, grades, and elevations indicated and as specified. Perform the grading in accordance with the typical sections shown and the tolerances specified in paragraph FINISHING. Transport satisfactory excavated materials and place in fill or embankment within the limits of the work.

Excavate unsatisfactory materials encountered within the limits of the work below grade and replace with satisfactory materials as directed. Include such excavated material and the satisfactory material ordered as replacement in excavation. Dispose surplus satisfactory excavated material not required for fill or embankment in areas approved for surplus material storage or designated waste areas. Dispose unsatisfactory excavated material off of the Owner's Property in waste or spoil areas provided by the Contractor. During construction, perform excavation and fill in a manner and sequence that will provide proper drainage at all times.

Excavate material required for fill or embankment in excess of that produced by excavation within the grading limits from the borrow areas indicated or from other approved areas selected by the Contractor as specified. Upon completion of construction activity, the Contractor shall restore the site to project start conditions ensuring proper drainage and providing sod in any unpaved disturbed areas.

3.2.2 Drainage

Provide for the collection and disposal of surface and subsurface water encountered during construction. Completely drain construction site during periods of construction to keep soil materials sufficiently dry. Construct storm drainage features (ponds/basins) at the earliest stages of site development, and throughout construction grade the construction area to provide positive surface water runoff away from the construction activity and/or provide temporary ditches, swales, and other drainage features and equipment as required to maintain dry soils. When unsuitable working platforms for equipment operation and unsuitable soil support for subsequent construction features develop, remove unsuitable material, and provide new soil material as specified herein. It is the responsibility of the Contractor to assess the soil and ground water conditions presented by the plans and specifications and to employ necessary measures to permit construction to proceed.

3.2.3 Dewatering

Control groundwater flowing toward or into excavations to prevent sloughing of excavation slopes and walls, boils, uplift and heave in the excavation and to eliminate interference with orderly progress of construction. Do not permit French drains, sumps, ditches or trenches within 3 feet of the foundation of any structure except with specific written approval, and after specific contractual provisions for restoration of the foundation area have been made. Take control measures by the time the excavation reaches the water level in order to maintain the integrity of the in-situ material. While the excavation is open, maintain the water level continuously, at least one foot below the working level. Operate the dewatering system continuously until construction work below existing water levels is complete. Submit performance records weekly. Measure and record performance of dewatering system at same time each day by use of observation wells or piezometers installed in conjunction with the dewatering system.

3.2.4 Removal of Unyielding Material

Where unyielding material is encountered in the bottom of the trench, remove such material 6 inches below the required grade and replace it with suitable materials as provided in paragraph

BACKFILLING AND COMPACTION.

3.2.5 Removal of Unstable Material

Where unstable material is encountered in the bottom of the trench, remove such material to the depth directed and replace it to the proper grade with select granular material as provided in paragraph BACKFILLING AND COMPACTION. When removal of unstable material is required due to the Contractor's fault or neglect in performing the work, the Contractor is responsible for excavating the resulting material and replacing it without additional cost to the Owner.

3.2.4.4 Excavation for Appurtenances

Provide excavation for manholes, catch-basins, inlets, or similar structures of sufficient size to permit the placement and removal of forms for the full length and width of structure footings and foundations as shown.