ADD02_2024_0523.pdf

Martin Sanitary Diversion Section 00 91 13 Drainage District Addendum #2

2024 Martin RTB Improvements 00 91 13 - 1

ADDENDUM # 2

May 23, 2024

2024 Martin RTB Improvements St. Clair Shores, Michigan

Project No. WWS-2022-010

To all Bidders: On behalf of the OWNER, this ADDENDUM to the Bidding Documents is issued to you by the Engineer for the Project described above. Acknowledge receipt of this Addendum in the space provided in Article 5 of the Bid Form.

The following changes and/or clarifications shall be incorporated in the Bidding Documents of the Project and the cost, all inclusive, thereof shall be included in the associated amount shown on each Bidder's Proposal:

Item 1 � Section 01 11 00 � Summary of Work

See attached reissued section to address basin access and Owner days.

Item 2 � Section 02 22 26 � Preconstruction Audio-Visual Documentation

See attached reissued section to clarify extent of area for audio-video recording.

Item 3 � Section 02 41 19 � Selective Demolition

See attached reissued section to address hazardous materials.

Item 4 � Section 09 91 00 � Painting

See attached reissued section to clarify paint extents.

Item 5 � Sheet G101 � Site Plan

See attached reissued sheet for updated note.

Item 6 � Sheet D406 � Basin Interior Flushing Piping Process Demolition Plan

See attached reissued sheet for updated legend.

Item 7 � Sheet C001 � Civil Details

See attached reissued sheet for updated profile.

Item 8 � Sheet S002 � Monorail Rehabilitation Plans and Details

See attached reissued sheet for updated paint note.

Item 9 � Potential Bidder Questions

The attached questions were received; the answers and reference material provided are for guidance only and do not modify the bidding documents.

END OF SECTION 00 91 13

Martin Sanitary Diversion Section 00 91 13 Drainage District Addendum #2

2024 Martin RTB Improvements 00 91 13 - 2

THIS PAGE INTENTIONALLY LEFT BLANK

Martin Sanitary Diversion Drainage District 2024 Martin Retention Treatment Basin Improvements Project Number 230141 – ADDENDUM #2

01 11 00 – 1

Summary of Work

Section 01 11 00

SECTION 01 11 00 – SUMMARY OF WORK

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 WORK COVERED BY CONTRACT DOCUMENTS

A. The Work covered by the Contract Documents comprises construction of the Martin Retention Basin improvements located at 22301 Bon Brae Street, Saint Clair Shores, Michigan 48081 for the Martin Sanitary Diversion Drainage District, Owner.

B. The Work includes the following major items:

1. Removal of existing equipment and appurtenances to allow for installation of new or replacement equipment.

2. Demolition of abandoned piping, pumps, and buried valve structures.

3. Dewatering slide gate replacement.

4. Ventilation blower fan replacement.

5. Ductwork replacement in basin.

6. Sliding roof-style maintenance hatch installation.

7. Basin hinged access hatches replacement.

8. Trolley crane hoist replacement.

9. Swing doors and lintel repair.

10. Painting and coating of steel monorail and supports.

11. Power distribution panel and control panel replacement and installation.

12. Level instruments installation.

13. Underground conduit installation.

14. Concrete repairs and grouting in dry weather chamber.

15. Restoration of sidewalk, drive, curb, and landscaping.

1.3 TYPE OF CONTRACT

A. Construct the Work of this Contract under a single lump sum Contract.

1.4 GENERAL

A. Imperative Language: These Specifications (Divisions 01 through 49) are written in the imperative and abbreviated form. This imperative language of the technical specifications is directed at Contractor unless specifically noted otherwise. Incomplete sentences shall be completed by inserting "shall", "shall be" and similar mandatory phrases by inference in the same manner as they are applied to notes on Drawings. The words "shall", "shall be" and similar mandatory phrases shall be supplied by inference where a colon (:) is used within sentences or phrases. Except as worded to the contrary, fulfill (perform) all indicated requirements whether stated in the imperative or otherwise.

B. Related Sections: Some Sections of these Specifications (Divisions 01 through 49) may include a paragraph titled "Related Sections". This paragraph is an aid to the Project Manual user and is not intended to include all Sections which may be related. It is Contractor's obligation to coordinate all Sections whether indicated under "Related Sections" or not.

C. Reference to the General Conditions: In Divisions 01 through 49, a reference to the General Conditions includes by inference all amendments or supplements in the Supplementary Conditions.

01 11 00 – 2

1.5 WORK UNDER OTHER CONTRACTS

A. Coordinate the schedule of work under other contracts with Owner and other contractors.

B. Cooperate with all contractors performing work on the site.

1.6 CONTRACTOR USE OF PREMISES

A. Limit use of premises to allow for Owner occupancy and work by other contractors.

B. Coordinate use of premises under direction of the Owner.

C. Where the Contract Documents identify certain site elements within the construction limits, such as sidewalks, drives, and streets, that must be kept open for public or the Owner’s use during construction, the Contractor shall be responsible for protection and maintenance of such elements as well.

D. Except in connection with the safety or protection of persons or the Work or property at the Site or adjacent thereto, all Work at the site shall be restricted to the following hours:

1. Monday Through Friday (Except Legal Holidays): 8 a.m. to 4 p.m.

2. Saturday, Sundays or legal holidays with written approval of the Owner.

E. Work Within Highway Rights-of-Way: In accordance with Division 00 Section “Permits.”

F. Private Easements:

1. The Owner will arrange for the necessary easements required for construction across privately owned land. The Contractor shall carry on the construction in such a manner as to cause a minimum of inconvenience to the occupants of the properties.

2. Any agreement made by the Contractor with any property owner that extends the rights as granted under an easement obtained by the Owner or that provides for an additional easement shall be obtained by the Contractor at the Contractor's expense and shall in no way be binding upon the Owner. The Contractor shall defend and hold the Owner and the Engineer harmless against any action that may arise from activities conducted pursuant to such additional agreements or easements. Unless relieved of responsibility for surface restoration in writing by property owner, the Contractor shall restore areas covered by separate agreements substantially the same as similar areas within the Project.

G. Basin Access:

1. Contractor is responsible for removing solids and cleaning basin as necessary to perform Work following any and all flow entering the basin due to normal operation.

1.7 WORK SEQUENCE

A. Construction Sequence:

1. Coordinate construction schedule and operations with Owner.

2. Submit shutdown request form to Owner at least 3 business days prior to requested shutdown date.

Shutdown request form is included in Division 00 Section “Sewer Entry & Shutdown (Lockout/Tagout) Request Form.”

3. Demolition of the existing dewatering slide gate will not be allowed until the Substantial Completion and start-up of the new dewatering slide gate.

B. Sequence Submittal:

1. The sequence indicated below is offered as a suggestion to the Contractor.

2. Submit a proposed sequence with appropriate times of starting and completion of tasks to Engineer for review.

C. The following sequence is suggested:

1. Basin Stage:

a. Demolish piping in basin.

b. Replace ductwork in basin.

c. Excavate and remove basin top slab.

d. Install concrete for dewatering gate.

01 11 00 – 3

e. Install dewatering gate.

f. Remove existing dewatering gate.

g. Install new curb for dewatering gate hatch.

h. Replace hatch at dewatering chamber.

i. Replace maintenance access hatch.

2. RTB Building Stage:

a. Demolish equipment in basement.

b. Patch roof penetration.

c. Repair monorail and supports.

d. Paint monorail and supports.

e. Replace building doors.

f. Replace crane hoist and power bar.

3. Exterior Stage:

a. Demolish flushing chambers.

b. Repair dry weather chamber and complete demolition.

c. Install buried conduit and duct banks.

d. Install control cabinets.

e. Replace supply fan and combination motor starter-disconnect.

f. Extend fence around fan.

g. Replace multiple surface-mounted basin access hatches.

h. Install level sensors.

1.8 OCCUPANCY REQUIREMENTS

A. Owner Occupancy During Construction:

1. The Owner will occupy or utilize premises during entire period of construction. Cooperate with the

Owner to minimize conflict and to facilitate the Owner's operations.

2. Access to Abutting Properties: Provide at all times.

3. Access for Emergency Vehicles:

a. Provide at all times.

b. Provide at least one clear lane during nonwork periods.

4. Fire Hydrants: Provide access to at all times.

5. Do not block fire access routes.

6. Detours and Street Closure:

a. When provided for in the Contract Documents or approved by the Owner.

b. Routes and barricades as indicated or as approved by road authority.

7. Limit parking for construction vehicles to an area designated by the Owner.

B. Coordination with Facility Operation:

1. Construct Work so as to not interfere with operation of the basin or the facility in general.

2. Basin must be available at all times to receive wet weather flows.

3. In general, all Work must be performed during dry weather.

4. Remove all personnel, materials, tools, debris, and equipment out of the flow path at the end of each day or sooner as directed by the Owner at no additional cost.

3.5. Complete cleanup of all work areas exposed to dry-weather, wet-weather, or any other flow at no additional cost.

1.9 SALVAGED MATERIALS

A. Ownership:

1. Owner will retain ownership of:

a. All flushing chamber valves and actuators.

b. All valves and actuators from basement, associated with flushing pumps.

2. Owner shall have the option of retaining ownership of any or all existing equipment, materials, and items removed under this Work.

3. Should Owner decide not to retain ownership of certain items removed under the Work of this Section, those items shall become property of Contractor and shall be promptly removed from the Project Site.

B. Delivery: Deliver items which remain property of Owner to a location, or locations, as selected by the Owner and on Site.

01 11 00 – 4

1.10 CONTRACT TIME AND OWNER DAYS

A. Contract times are as specified in Article 4 of the Agreement.

B. Contract times as specified account for and include 50 Owner-initiated weekday cancellations ("Owner Days") throughout the course of the project.

1. These days may include but are not limited to, wet weather (forecasted or precipitation), dewatering, flushing operations, or any other Owner-related usage of the facilities.

2. If significant wet weather is forecasted or is occurring during the Work, Owner will inform Contractor of the need to evacuate personnel, equipment, and materials from the Martin Retention Treatment Basin (RTB), Martin Drain, or any other areas impacted by incoming flow. The return of dry-weather conditions suitable for resuming the Work shall be at the sole discretion of the Owner.

3. Contractor shall include the costs associated with the loss of workdays in their Base Bid amount. If the allotment of Owner Days is exceeded, the Contractor shall be entitled to a one-for-one adjustment in Contract Times (calculated as actual Owner Days minus 50 days). Such adjustment shall be the Contractor's sole and exclusive remedy related to the exceedance. Owner Days shall only be accrued between Contractor mobilization and demobilization and only when previously scheduled work is taking place in areas impacted by incoming flow.

PART 2 - PRODUCTS

2.1 OTHER MATERIALS

A. General: All other materials which are not specified herein and are not indicated on the Drawings, but are required for proper and complete performance of the Work.

B. Procedure:

1. Select new, first quality material.

2. Obtain Engineer's review.

3. Provide and install.

PART 3 - EXECUTION

Not used.

END OF SECTION 01 11 00

02 22 26 – 1

Preconstruction Audio-Visual Documentation

Section 02 22 26

SECTION 02 22 26 – PRECONSTRUCTION AUDIO-VISUAL DOCUMENTATION

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes the furnishing of all labor, materials and equipment necessary for a complete color audio-video record of the existing surface features for the entire project buildings and above grade areas to accurately document the pre-construction conditions within the proposed construction's zone of influence.

1.3 SUBMITTALS

A. Qualifications: Submit such information as requested by the Engineer to determine the ability to produce professional video in accordance with industry standards and these specifications.

1.4 QUALITY ASSURANCE

A. Audio-video documentation shall be by a responsible commercial firm regularly engaged in color audio-video construction documentation.

B. Owner reserves the right to reject any audio-video documentation not conforming to these Specifications.

Such rejected documentation shall be redone at no additional cost to Owner.

1.5 PRODUCT DELIVERY

A. Deliver to Owner through Engineer premium quality DVD’s or Video CD’s with recorded documentation upon completion of the project or upon completion of segments, if requested.

B. DVD’s shall be compatible with playback on any Region I American TV standard DVD Player.

1.6 SEQUENCING AND SCHEDULING

A. Attend a meeting with Engineer to outline the coverage expected for the project, prior to the start of the video documentation.

PART 2 - PRODUCTS

2.1 Delivered product shall include all digital audio-video discs, disc storage cases, disc index labels, and runsheet logs.

A. Video to be mastered on high quality formats only:

1. CD

2. DVD

3. Flash Drive

4. Portable hard drive

B. High quality camcorders to be used:

1. With 1/4-inch, 1/3-inch or 1/2-inch charged coupled device imaging systems.

2. With optical stabilization; electronic stabilization is not acceptable.

3. With 20x minimum optical magnification.

4. Capable of producing NTSC 525 lines of resolution/60 fields/30 frames per second.

5. Capable of 3-luxillumination minimum.

02 22 26 – 2

C. Disc Index Labels:

1. All discs shall be labeled with appropriate project information and be able to be cross referenced with runsheets.

2. Label information to include:

a. DVD/Video CD number.

b. Project title.

c. Location of project.

d. Month and year of coverage.

e. Set information, i.e., Engineer’s set, Owner’s set, Contractor’s set.

f. Quick reference list of contents of a particular DVD.

D. Runsheet Logs:

1. Provide a runsheet log that accurately catalogs the contents of each video.

2. Runsheet logs to include:

a. Street name, easement or address.

b. Sheet number or numbers relative to the line entry of a particular area of coverage.

c. DVD/Video CD numbers.

d. Real time code indexing for each segment of the project indicating hours minutes and seconds to cross reference with playback equipment to locate specific points of interest on the project.

e. Direction of travel for each specific segment.

f. Viewing side for each specific segment.

g. Starting point for each specific segment.

h. Ending point for each specific segment.

i. Project information, i.e. project title, owner, date.

E. Vehicles used while performing documentation to be plainly marked with company name and telephone number with caution signs, flags and strobes to affect a safe and hazard free operation.

PART 3 - EXECUTION

3.1 RECORDING

A. General:

1. Coverage:

a. Recordings shall include coverage of all surface features located within the zone of influence of the proposed construction.

b. The zone of influence is defined as the area within the road right-of-way, area within permanent and temporary easements and adjacent areas which may be affected by routine construction operations.

c. The surface features include, but are not limited to, all roadways, pavements, curbs, driveways, sidewalks, culverts, headwalls, retaining walls, buildings, landscaping, trees, shrubbery, and fences.

d. Of particular concern shall be the existence or nonexistence of any faults, fractures, or defects.

e. All recording shall be performed during times of good visibility.

f. No recording shall take place when there is snow cover on the ground unless authorized by

Engineer.

g. The Engineer may designate areas to be omitted or added for audio-video documentation.

h. Areas not accessible by conventional wheeled vehicles shall be accessed by walking or special conveyance.

2. Time of Execution: Prior to placement of equipment and materials on the jobsite.

3. Coverage Continuity:

a. Accessible Areas: Coverage shall consist of a single, continuous, recording which begins at one end of a particular construction area and continues to the other end of that construction area.

b. Non Accessible Areas (Across Easements, Etc.): Coverage shall consist of an organized, interrelated sequence of recordings at various positions along the proposed construction area.

4. Video portion of the documentation shall reproduce bright, sharp, clear pictures with accurate colors and shall be free from distortion, tearing, rolls or any other form of picture imperfection.

5. Audio Portion of the Documentation:

a. Shall reproduce the commentary of the camera operator with proper volume, clarity, free from distortion and background noise.

b. Assist in maintenance of viewer orientation and in identification, clarification, or objective description of the structures being shown in the video portion of the recording.

02 22 26 – 3

6. Video shall display through electronic means information germane to the current video display.

a. Display continuously information as follows:

1) Time and date of recording.

2) Location of recording, i.e., street name, easement or address.

b. When conventional wheeled vehicles are utilized, include engineering stationing to coincide with project plans, direction of travel and viewing side.

1) The engineering stationing must be continuous and accurate and reflect the stationing within the field of view.

2) The engineering stationing must coincide with stationing on project plans and utilize standard engineering symbols, i.e., 5+00.

3) Global Positioning System satellites may be used with or in place of engineering stationing.

a) Differential Global Positioning System is to be used where available, with updates 1/second at 5 meter or less spherical accuracy.

b) Standard Global Positioning System accuracy is as dictated by the United States Department of Defense mandate.

c) Global Positioning System display will be at 1 meter longitude and 1 meter latitude increments, i.e., 414N529 08317W302.

B. Procedural Requirements for Coverage Rates:

1. The following table sets the maximum rate of travel for the following areas:

AREA TYPICALLY CHARACTERIZED BY AVE RATE MAX

High Density (e.g., developed subdivision)

Hard surface curbs, drives and sidewalks: 50 foot lots;

very few empty lots

30 feet/min

Medium Density (e.g., partially developed subdivision)

Gravel roads, hard and soft surface drives, no sidewalks, culverts and headwalls, 100 foot lots, few empty lots

60 feet/min

2. Camera Positioning and Techniques:

a. Height and Stability: Camera to be mounted securely to produce steady viewing with lens not less than 8 feet above the ground of the area being viewed, or at a level to facilitate best perspective and line of site when using conventional wheeled vehicles.

b. Control: All movements shall be at a rate that allows recorded objects to be viewed clearly during video playback.

c. Viewer Orientation for Road Areas: Utilize overall establishing views and visual displays of all visible house and building addresses.

1) Easement Areas: Highly visible yellow flags shall be used to clearly define proposed centerline of construction.

3. Private Property:

a. Contractor shall obtain permission of property owner before entering private property.

b. If Contractor is refused entry to private property, Contractor shall notify Engineer and wait until permission is obtained before entering the property.

END OF SECTION 02 22 26

02 41 19 – 1

Selective Demolition

Section 02 41 19

SECTION 02 41 19 – SELECTIVE DEMOLITION

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes the modification, alteration, conversion, and renovation of existing structures:

1. Be aware of the many incidental items which exist which must be demolished, relocated, or replaced in order to accomplish the remodeling work of trades.

2. Include the price of such demolition, relocating, and replacement in the base Bid.

3. These incidental items may or may not be indicated in the Contract Documents.

4. Contractor and Subcontractors performing remodeling work are expected to be familiar with the unknown nature of existing utilities serving an area to be remodeled and shall calculate the base Bid to include the demolition, removal, relocation, and replacement of these utilities.

4.5. Include the price of demolition of hazardous materials that are necessary to be removed.

1.3 REFERENCES

A. Except as herein specified or as indicated on the Drawings, the work of this Section shall comply with the pertinent provisions of the following:

1. American National Standards Institute: ANSI A10.6 - Safety Requirements for Demolition Operations.

2. ASTM: D1557 - Laboratory Compaction Characteristics of Soil Using Modified Effort.

3. EPA: Rule 406(b) of the Toxic Substances Control Act of 1992.

4. NFPA: NFPA 241 - Standard for Safeguarding Construction, Alteration, and Demolition Operations.

1.4 DEFINITIONS

A. Terms:

1. Abandon:

a. Remove an item to the extent that it is not visible and does not interfere with new construction.

b. Portions of the abandoned item may be left in place.

c. No abandoned items shall be left below new footings.

2. Demolish:

a. Remove existing items from their present location in the Project area and haul to an area outside of the Project area.

b. Remove utilities serving these items.

3. Relocate:

a. Move existing items from their present location to another location in the Project area.

b. Extend utilities serving the present location to the new location.

4. Remove:

a. Except for items indicated to be reused, salvaged, reinstalled, or otherwise indicated to remain

Owner’s property, demolished materials shall become Contractor’s property.

b. Remove existing items from their present location in the Project area and haul to an area outside of the Project area.

c. Remove utilities serving these items.

5. Replace:

a. Remove existing items from their present location in the Project area, haul them to an area outside of the Project area, and furnish and install new items in the same or another location.

b. Extend utilities serving the present location to the new location.

6. Reuse: Move existing items from their present location to another location in the Project area. Extend utilities serving the present location to the new location.

02 41 19 – 2

7. Historic Items:

a. Historic items, relics, and similar object including, but not limited to, cornerstones and their contents, commemorative plaques and tablets, antiques, and other items of interest or value to Owner that may be encountered during selective demolition remain Owner’s property.

b. Carefully remove and salvage each item or object in a manner to prevent damage and deliver promptly to Owner.

1.5 DIVISION OF WORK

A. Work: In accordance with the General Conditions, Contractor is responsible for dividing the Work among the Subcontractors and Suppliers and for delineating the work to be performed by specific trades. The following are suggestions as to how the Work may be divided. This is not a complete list of the work:

1. Contractor:

a. Cut and patch walls, floors, and ceilings to allow for recessed utilities and ductwork.

b. Remove and reinstall existing suspended ceilings to allow for above ceiling construction.

c. Replace damaged units.

d. Install new ceilings as indicated on the Drawings.

e. Place sleeves in new concrete structures.

f. Patch roof at new penetration and curbs and where existing penetrations and curbs are removed.

g. Furnish and install new structural steel where required for reinforcement at floor, wall, and roof openings.

h. Install fire stop and smoke stop systems at penetrations for ratings indicated in accordance with local building codes.

2. Mechanical, Electrical, and Fire Protection Subcontractors:

a. Furnish sleeves for use in new concrete construction.

b. Install fire stop and smoke stop systems at utility penetrations in accordance with local building codes.

c. Furnish and install sleeves in gypsum board and masonry construction.

d. Core drill existing concrete for new utilities and sleeves after obtaining Engineer's review of locations.

e. Remove and reinstall existing fire protection heads to allow for ceiling removal and installation.

f. Furnish new heads, piping, and connections as required for completion of the Work.

3. Miscellaneous:

a. Each trade shall be financially responsible for cutting and patching for sleeves, penetrations, and installation of isolated components as necessary for its work unless herein specifically stated to the contrary.

b. On renovation projects, cut and patch walls, floors, and ceilings to allow for continuous runs of recessed utilities and ductwork.

c. Patching shall be done by the trade whose work is damaged.

d. Costs caused by defective or ill-timed work shall be borne by the party responsible.

e. Each trade shall do fitting of its own work as required to make its several components fit together or to receive the work of other trades.

1.6 SUBMITTALS

A. Predemolition Audio-Video:

1. Submit showing existing conditions of construction to remain that could be misconstrued as damage caused by construction activities.

2. Including building and Site, as well as interior and exterior finishes.

3. Submit prior to commencing Work.

1.7 QUALITY ASSURANCE

A. Qualifications: Engage an experienced firm that has specialized in demolition work similar to material and extent indicated for this Project.

B. Regulatory Requirements:

1. Comply with governing EPA notification regulations before beginning selective demolition.

2. Comply with hauling and disposal regulations of authorities having jurisdiction.

3. Comply with ANSI A10.6 and NFPA 241.

4. Comply with 29 CFR 1926.62-(OSHA Paint Standard).

02 41 19 – 3

5. Comply with 29 CFR 1910: Safety and Health Regulations for General Industry, United States OSHA, as amended.

6. Comply with Standard Operating Safety Guides, U.S. EPA, November 1984.

7. Comply with Occupational Safety and Health Guidance Manual for Hazardous Waste Site Activities, NIOSHA Publication No. 85-115, October 1985.

4.8. Comply with 29 CFR 1926: Safety and Health Regulations for Construction, OSHA, as amended.

C. Pre-Demolition Conference:

1. Conduct pre-demolition conference at Site in accordance with in Division 01 Section “Project Meetings.”

2. Review methods and procedures related to selective demolition including, but not limited to, the following:

a. Inspect and discuss condition of construction to be selectively demolished.

b. Review structural load limitations of existing structure.

c. Review and finalize selective demolition schedule and verify availability of materials, demolition personnel, equipment, and facilities needed to make progress and to avoid delays.

d. Review requirements of work performed by other trades that rely on substrates exposed by selective demolition operations.

D. Hazardous materials removals shall be performed by a contractor licensed in the State of Michigan in compliance with all applicable local, state and federal regulations. A hazardous materials and inspections report is available by Owner.

1.8 PROJECT CONDITIONS

A. Owner Occupancy:

1. Owner will occupy portions of building immediately adjacent to selective demolition area.

2. Conduct selective demolition so Owner’s operations will not be disrupted.

3. Provide not less than 72 hours’ notice to Owner of activities that will affect Owner’s operations.

B. Access:

1. Maintain access to existing walkways, corridors, and other adjacent occupied or used facilities.

2. Do not close or obstruct walkways, corridors, or other occupied or used facilities without written permission from authorities having jurisdiction.

C. Conditions:

1. Owner and Engineer assume no responsibility for condition of areas to be selectively demolished.

2. Conditions existing at time of inspection for bidding purposes will be maintained by Owner as far as practicable.

D. Storage or sale of removed items or materials on Site will not be permitted.

E. Maintenance of Utilities:

1. Maintain existing utilities indicated to remain in service and protect them against damage during selective demolition operations.

F. Unknown Hazardous Materials:

1. A report that identifies locations and estimated quantities of hazardous materials is available for review and use as referenced in the Supplementary Conditions.

2. Examine report to become aware of locations where hazardous materials are present.

3. Hazardous materials that are necessary to remove and/or disturb shall be selectively demolished and handled according at all applicable local, state, and federal regulations prior to general demolition.

1. It is not expected that hazardous materials will be encountered in the Work.

2. If materials suspected of containing hazardous materials are encountered, do not disturb; immediately notify Engineer and Owner in accordance with the General Conditions.

3. Hazardous materials will be removed by Owner under a separate contract.

G. Lead Paint: Remove and remediate existing lead paint as required to comply with all codes and requirements while performing the requirements of the Work. Either remove lead paint completely or partially as required to achieve this. Reference hazardous material report.

02 41 19 – 4

1.9 WARRANTIES

A. Existing Warranties:

1. Remove, replace, patch, and repair materials and surfaces cut or damaged during selective demolition, by methods and with materials so as not to void existing warranties.

2. If possible, retain original installer or fabricator to patch exposed work that is damaged during selective demolition.

3. If it is not possible to engage original installer or fabricator, engage another recognized, experienced, and specialized firm.

PART 2 - PRODUCTS

2.1 MATERIALS

A. General:

1. Materials and workmanship shall conform to the requirements of other Sections of the Specifications.

2. Where no materials are specified in these specifications, use materials of an equivalent type, quality, and size to match those existing in other areas of the facility.

3. If none exist, use materials and workmanship recognized as of the highest quality in the industry.

4. Obtain Engineer's review of such material and workmanship.

B. Piping: Existing piping which is removed from its present location shall not be reused where new piping is required unless specifically noted on the Drawings.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that utilities have been disconnected and capped.

B. Survey existing conditions and correlate with requirements indicated to determine extent of selective demolition required.

C. Inventory and record the condition of items to be removed and reinstalled, and of items to be removed and salvaged.

D. Conflicts:

1. When unanticipated mechanical, electrical, or structural elements that conflict with intended function or design are encountered, investigate and measure the nature and extent of conflict.

2. Promptly submit written report to Engineer.

E. Survey, or engage a competent person to survey condition of the building, in accordance with requirements of OSHA, to determine whether removing any element might result in structural deficiency or unplanned collapse of any portion of the structure or adjacent structures during selective demolition operations.

F. Perform additional surveys as the work progresses to detect hazards resulting from operations to date.

3.2 UTILITY SERVICES

A. Maintain existing services indicated to remain and protect them against damage during selective demolition operations.

B. Interruptions:

1. Do not interrupt existing utilities serving occupied or operating facilities unless authorized in writing by

Owner and other authorities having jurisdiction.

2. Provide temporary services during interruptions to existing utilities, as acceptable to Owner and to authorities having jurisdiction.

3. Provide at least 72 hours’ notice to Owner if shutdown of service is required during changeover.

02 41 19 – 5

3.3 PREPARATION

A. Site Access and Temporary Controls:

1. Conduct selective demolition and debris removal operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities.

2. Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from Owner and other authorities having jurisdiction.

3. Provide alternate routes around closed or obstructed traffic ways if required by governing regulations.

4. Erect temporary protection, such as walks, fences, railings, canopies, and covered passageways, where required by authorities having jurisdiction.

5. Protect existing Site improvements, appurtenances, and landscape features to remain.

6. Erect a plainly visible fence around drip line of individual trees or around perimeter drip line or groups of trees to remain.

B. Temporary Facilities:

1. Protection:

a. Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent buildings and facilities to remain.

b. Provide protection to ensure safe passage of people around selective demolition area, and to and from occupied portion of building.

c. Weather Protection:

1) Provide temporary weather protection, during interval between selective demolition of existing construction on exterior surfaces and new construction, to prevent water leakage and damage to structure and interior areas.

2) Where heating or cooling is needed and permanent enclosure is not complete, provide insulated temporary enclosures.

3) Coordinate enclosures with ventilating and material drying or curing requirements to avoid dangerous conditions and effects.

d. Protect walls, ceilings, floors, and other existing finish work that are to remain or that are exposed during selective demolition operations.

e. Cover and protect furniture, furnishings, and equipment that have not been removed.

2. Shoring and Bracing:

a. Provide and maintain shoring, bracing, or structural support to preserve stability and prevent movement, settlement, or collapse of construction to remain, and to prevent unexpected or uncontrolled movement or collapse of construction being demolished.

b. Strengthen or add new supports when required during progress of selected demolition.

3.4 POLLUTION CONTROLS

A. Dust Control:

1. Use water mist, temporary closures, and other suitable methods to limit spread of dust and dirt.

2. Do not use water when it may damage existing construction or create hazardous or objectionable conditions, such as ice, flooding, and pollution.

3. Wet mop floors to eliminate trackable dirt and wipe down walls and doors of demolition enclosure.

4. Vacuum carpeted areas.

5. Comply with governing environmental protection regulations.

B. Disposal:

1. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

2. Remove debris from elevated portions of building by chute, hoist, or other device that will convey debris to grade level in a controlled descent.

3.5 GENERAL

A. Demolish and remove existing construction only to the extent required by new construction and as indicated.

B. Methods:

1. Use methods required to complete the work within limitations of governing regulations.

2. Level by Level:

a. Proceed with selective demolition systematically, from higher to lower level.

02 41 19 – 6

b. Complete selective demolition operations above each floor or tier before disturbing supporting members on the next lower level.

3. Cutting Openings:

a. Neatly cut openings and holes plumb, square, and true to dimensions required.

b. Use cutting methods least likely to damage construction to remain or to adjoining construction.

c. Use hand tools or small power tools designed for sawing or grinding, not hammering and chopping, to minimize disturbance of adjacent surfaces.

d. Temporarily cover openings to remain.

4. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.

5. Flame Cutting:

a. Do not use cutting torches until work area is cleared of flammable materials.

b. At concealed spaces, such as duct and pipe chases, verify condition and contents of hidden space before starting flame-cutting operations.

c. Maintain fire watch and portable fire suppression devices during flame-cutting operations.

d. Maintain adequate ventilation when using cutting torches.

6. Remove decayed, vermin-infested, or otherwise dangerous or unsuitable materials, and promptly and legally dispose of off Site.

7. Remove structural framing members and lower to ground by method suitable to avoid free fall and to prevent ground impact or dust generation.

8. Locate selective demolition equipment and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.

9. Dispose of demolished items and materials promptly.

10. Return elements of construction and surfaces that are to remain to condition existing before selective demolition operations began.

C. Existing Facilities: Comply with Owner’s requirements for using and protecting elevators, stairs, walkways, loading docks, building entries, and other building facilities during the selective demolition operations.

D. Removed and Salvaged Items:

1. Clean salvaged items.

2. Pack or crate items after cleaning and identify contents of containers.

3. Store items in a secure area until delivery to Owner.

4. Transport items to Owner’s storage area on Site designated by Owner.

5. Protect items from damage during transport and storage.

E. Removed and Reinstalled Items:

1. Clean and repair items to functional condition adequate for intended reuse.

2. Paint equipment to match new equipment.

3. Pack or crate items after cleaning and repairing, and identify contents of containers.

4. Protect items from damage during transport and storage.

5. Reinstall items in locations indicated.

6. Comply with requirements for new materials and equipment.

7. Provide connections, supports, and miscellaneous materials necessary to make item functional for use indicated.

F. Existing Items to Remain:

1. Protect construction indicated to remain against damage and soiling during selective demolition.

2. When permitted by Engineer, items may be removed to a suitable, protected storage location and cleaned and reinstalled in their original locations after selective demolition operations are complete.

3.6 DEMOLITION

A. Structures:

1. Cut, repair, reuse, excavate, demolish or otherwise remove parts of the existing structures or appurtenances, as indicated on the Drawings, herein specified and necessary to permit completion of the Work.

2. Dispose of demolished materials in an approved manner.

3. Include necessary cutting, bending, and welding of reinforcing steel, structural steel, or miscellaneous metal work found embedded in the existing structures.

02 41 19 – 7

4. When removing materials or portions of existing structures, shore up, underpin, and protect adjacent structures.

5. Concrete:

a. Demolish in small sections.

b. Cut concrete to a depth of at least 3/4-inch at junctures with construction to remain, using a power driven saw.

c. Dislodge concrete from reinforcement to remain at perimeter of areas being demolished, cut reinforcement, and then remove remainder of concrete indicated.

d. Neatly trim openings to dimensions indicated.

6. Engineer's review of cutting: No existing structure, equipment or appurtenance shall be shifted, cut, removed or otherwise altered without obtaining review of Engineer.

B. Equipment:

1. Dismantle, remove, and relocate existing equipment, piping, and other appurtenances required for the completion of the Work.

2. Cut existing pipelines for the purpose of making connections thereto.

3. Cut off anchor bolts for equipment and structural steel indicated to be removed 1-inch below the concrete surface.

4. Patch remaining concrete surface to smooth even finish.

5. Remove air conditioning equipment without releasing refrigerants, if applicable.

C. Piping, Fire Protection, and Electrical Components:

1. When a new connection is made to an existing pipeline, install additional new piping, extending to and including the most convenient new valve.

2. Piping, conduit, and wiring indicated or required to be demolished shall be done so to the nearest reasonable connection outside of the Project area or as directed by Engineer.

3. Where necessary or required for the purpose of making connections, cut existing pipelines in a manner to provide an approved joint.

4. Weld beads, flanges, and provide Dresser couplings on existing and new piping.

5. Remove and reinstall existing fire protection heads to allow for new construction.

6. Comply with applicable fire protection codes.

7. Furnish new heads, piping, and connections as required for completion of the Work.

8. Remove junction boxes and electrical outlets which will no longer be in use.

9. At existing walls which are made thicker, extend piping and wiring to accommodate additional wall thickness.

10. Remove and reinstall fixtures and electrical outlets, switches, etc.

D. Ductwork:

1. Remove portions of existing ductwork systems to the nearest branch outside the project area, except as indicated otherwise on drawings.

2. Remove existing ductwork in a manner to minimize dispersion of dust in the duct system.

3. Repair and replace existing insulation and duct liner disturbed by this Work to provide a continuous smooth surface.

4. New connections to existing ductwork shall comply with the requirements of Division 23 Section

“Nonmetal Ducts.”

E. Masonry Walls:

1. Where masonry walls are to be removed and replaced, and where filling existing openings, allow for toothing in of the new masonry at alternate courses so that the existing running bond pattern is maintained.

2. Brick:

a. Existing brick which becomes exposed due to the removal of materials such as adjacent walls, windows, doors, cabinetry, equipment, etc., shall be thoroughly cleaned, scraped, brushed, and tuck pointed to match adjacent existing brick.

b. Blend appearance of exposed brick with the adjacent brick.

c. Replace damaged brick.

F. Floor Slabs:

1. Where new utilities must be installed below the existing floor slab, saw cut the slab for at least 1-inch of depth.

2. Break out the remaining depth with jack hammers or hand tools to provide a rough surface.

02 41 19 – 8

3. Leave existing steel reinforcing so that it laps at least 6 inches into the new concrete slab over the trench.

4. The exact width of the concrete removed shall depend upon the required depth and diameter of the new utility.

5. Allow for sufficient working space in the trench.

G. Conceal Utilities: Recess new piping, conduit, and other utilities into floors, wires, and ceilings in finished areas.

H. Ownership of Salvaged Materials:

1. Materials and equipment removed shall remain the property of Owner at Owner's option.

2. Items not salvageable, as determined by Engineer and Owner, and items Owner elects not to keep shall become the property of Contractor to be properly disposed of off the Site.

3. Salvaged equipment shall be thoroughly cleaned, lubricated, and greased for protection during prolonged storage.

I. Nonshrink Grout: Use nonshrink grout for setting wall castings, sleeves, leveling pump bases, doweling anchors into existing concrete and elsewhere as indicated.

J. Protect Facility from Water Damage: Provide flumes, hoses, piping, suitable plugs, bulkheads, or other means to divert or hold back the flow of wastewater, water, or other liquids, as required for proper performance of the Work.

K. Blasting: Not permitted.

L. Sleeves:

1. Subcontractors for mechanical, electrical, and other trades shall furnish sleeves and inserts for pipes, conduits, and similar items in forms, walls, partitions, and floors.

2. Perform work in cooperation with Contractor.

3. Place items in ample time so as not to delay operations.

4. Do not place sleeves so they pass through beams, girders, and similar construction.

M. Roofing: If existing roofing is to remain, obtain original roofing Manufacturer's approval and warranty on new roof penetrations and where removing existing roof penetrations and curbs.

N. Firestopping and Smokestopping: Install firestop and smokestop systems at utility penetrations in accordance with local building codes.

O. Earthwork:

1. Backfill trenches with imported Michigan Department of Transportation (MDOT) Granular Material Class

II or, if approved by Engineer, the native material excavated from the trench.

2. Compact trench backfill to 95% maximum density as determined by ASTM D1557, modified proctor.

P. Miscellaneous: At existing walls which are made thicker, reinstall fire extinguisher cabinets, clocks, thermostats, and other wall hung items in new wall to accommodate additional wall thickness.

3.7 PATCHING AND REFINISHING

A. Promptly repair damage to adjacent construction caused by selective demolition operations.

B. Patching:

1. Patch and repair existing surfaces from which items have been removed leaving holes, fasteners, and surface blemishes exposed to view.

2. Where repairs to existing surfaces are required, patch to produce surfaces suitable for new materials.

3. Completely fill holes and depressions in existing masonry walls that are to remain with an approved masonry patching material applied according to Manufacturer’s written recommendations.

4. Comply with Division 01 Section “Cutting and Patching.”

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C. Refinishing:

1. Prepare existing surfaces for finishes by scraping, sanding, filling, acid etching, and sand blasting to ensure bonding and a smooth finish.

2. Refinish entire surfaces as necessary to provide an even finish.

3. Refinish continuous surfaces to the nearest intersection and entirely finish assemblies.

4. Restore exposed finishes of patched areas and extend restoration into adjoining construction in a manner that eliminates evidence of patching and refinishing.

5. Refinish entire surfaces if necessary to remediate existing lead painted surfaces.

D. Floors and Walls:

1. Where floors or partitions that are demolished extend one finished area into another, patch and repair floor and wall surfaces in the new space.

2. Provide an even surface of uniform finish, color, texture, and appearance.

3. Remove existing floor and wall coverings and replace with new materials, if necessary, to achieve uniform color and appearance.

4. Patch with durable seams that are as invisible as possible.

5. Provide materials and comply with installation requirements specified in other Sections of these

Specifications.

6. Where patching occurs in a painted surface, apply primer and intermediate coats over the patch and apply final coat over entire unbroken surface containing patch.

7. Provide additional coats until patch blends with adjacent surfaces.

8. Where feasible, test and inspect patched areas after completion to demonstrate integrity of installation.

E. Ceilings: Patch, repair, or rehang existing materials as necessary to provide even plane surface of uniform appearance.

3.8 CLEANING

A. Clean materials installed under this Section in accordance with Division 01 Section “Cleaning and Waste Management.”

B. Clean adjacent structures and improvements of dust, dirt, and debris caused by selective demolition operations.

C. Return adjacent areas to conditions existing before selective demolition operations began.

END OF SECTION 02 41 19

09 91 00 – 1

Painting

Section 09 91 00

SECTION 09 91 00 – PAINTING

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes the furnishing and application of coating products, such as paints, stains and sealers, and labeling products.

1. Surfaces to be painted or finished include, but are not necessarily limited to, the following interior and exterior surfaces for items furnished or installed under this Work, except as otherwise indicated on the Drawings or herein specified, and existing surfaces specifically identified herein or on the Drawings:

a. Machinery and equipment.

b. Ferrous metals, hangers, structural steel and joist framing, including existing exterior monorail and supports.

c. Exposed conduit and appurtenances (except conduit mounted on unpainted surfaces).

d. Steel doors and frames.

e. All other surfaces not specifically excluded in the following paragraph. A completely finished project is required, regardless of whether every individual item is specified herein or indicated on the Drawings to be painted.

2. Surfaces not to be painted or finished include the following unless otherwise indicated on the Drawings:

a. Immersed cast-in-place and precast concrete.

b. Interior, below grade walls and ceilings.

c. Glass.

d. Manufacturer's name and identification plates.

e. Concealed ducts, pipes and conduits.

f. Galvanized, aluminum and fiberglass grating.

g. Prefinished electrical and control panels with factory applied final finish.

h. Aluminum (unless specifically indicated to be painted).

i. Door and window hardware.

j. Stainless steel (unless specifically indicated to be painted).

k. Prefinished wall, ceiling and floor coverings.

l. Items with factory applied final finish, such as cabinets, anodized door and window frames, and the like, but excluding…