02 - Section 002416 - Bid Categories.pdf

SECTION 002416

SCOPE OF WORK

BID CATEGORY SPECIFIC NOTES – ADDENDUM 01

Bid Category 02A – Selective Demolition

BID CATEGORY 02A – SELECTIVE DEMOLITION

GENERAL – The following shall not be interpreted as a complete itemization of the work to be performed under this Bid Category. This Bid Category Trade Contractor shall be responsible to perform all work reasonably interpreted to be included in its scope of work in accordance with the drawings and specifications in addition to these Bid Category notes of clarification.

BASE SPECIFICATION(S) - Include ALL WORK specified or reasonably inferred

DIVISION 00 PROCUREMENT AND CONTRACTING REQUIREMENTS

DIVISION 01 GENERAL REQUIREMENTS

024119 SELECTIVE DEMOLITION

PARTIAL SCOPE OF WORK / REFERENCE SPECIFICATION(S)

Include PORTIONS of the Work specified and/or requirements as it pertains to the work of this Bid Category

015000 TEMPORARY FACILITIES AND CONTROLS

DIVISION 22 PLUMBING

DIVISION 23 HVAC

DIVISION 26 ELECTRICAL

ASBESTOS ABATEMENT SURVEY

LEAD-BASED PAINT SURVEY

INCLUDE (Furnish and Install u.n.o):

1. Provide Clark Trade Contract Conditions, signed by an authorized company representative, with bid submission. Refer to Section 006200 – Certificates and Other Forms.

2. Provide all labor, supervision, materials, tools, equipment, temporary measures, permits, fees, hauling, disposal, and incidentals required to complete the selective building demolition indicated in the Contract Documents.

3. Comply and coordinate with applicable architectural, structural, interiors, food-service, plumbing, mechanical, electrical, technology, fire-protection, and security drawings.

4. Attend a pre-demolition coordination meeting with Clark Construction Company, MEP contractors, and other affected trades before beginning demolition.

5. Field verify existing conditions and limits of demolition before beginning work.

Immediately notify Clark Construction Company of conflicts between existing conditions and the Contract Documents before proceeding with affected work.

6. Provide pre-demolition photographs or video documenting existing conditions adjacent to demolition areas, including surfaces, finishes, furnishings, equipment, utilities, and other items that could later be misconstrued as having been damaged by demolition operations.

7. Before removing items designated to be salvaged, reused, reinstalled, replicated, or turned over to the Owner:

a. Verify each item and its disposition with Clark Construction Company.

a. Photograph and document its existing condition.

b. Record dimensions, materials, construction details, and other information required for accurate reinstallation or reproduction.

c. Prepare and maintain an inventory of salvaged and Owner-retained items.

8. Conduct demolition to minimize disruption to school operations, Owner activities, occupied portions of the buildings, and work by other contractors.

9. Coordinate demolition sequencing with Clark Construction Company, Owner occupancy, temporary partitions, utility shutdowns, asbestos-abatement activities, and protection of construction to remain.

10. Include out-of-sequence work, phased demolition, and remobilization as required by the construction schedule and as directed by Clark Construction Company.

11. Provide, install, maintain, relocate, and remove dust-tight temporary partitions, barricades, walk-off mats, temporary coverings, warning signage, guardrails, and other controls required to separate demolition areas from occupied or completed portions of the building. Refer to Section 024119.

12. Provide dust control for the full duration of this bid category’s work. Prevent dust and debris from migrating into occupied spaces, existing HVAC systems, adjacent construction, or completed areas.

13. Protect construction, finishes, furnishings, equipment, utilities, fire-protection systems, server cabinets, walk-in freezers, and other items indicated to remain.

Repair or replace damaged items by this contractor at no additional cost to the Owner.

a. Utilize SkudoBoard or equivalent for protection of walk-in freezer.

14. Maintain all required means of egress and fire-protection facilities serving occupied portions of the building.

15. Obtain a hot-work permit from Clark Construction Company before flame cutting, welding, grinding, or other hot-work operations.

16. Provide additional temporary power, distribution, equipment, ventilation, and task lighting required to perform this work. Do not use occupied-building systems without prior authorization.

17. Provide qualified and trained riggers as required by MIOSHA and OSHA for removal and handling of equipment and heavy materials.

18. Design, provide, install, maintain, and remove shoring, bracing, temporary supports, and other measures required to:

a. Preserve the stability of construction and finishes to remain.

b. Prevent movement, settlement, or collapse.

c. Prevent uncontrolled movement of construction being demolished.

d. Support partially demolished masonry, structural elements, or equipment during removal.

19. Where engineered shoring is required, provide a signed and sealed shoring plan for review within two weeks of contract award or letter of intent and before beginning the affected demolition.

20. Do not overload existing floors, walls, roofs, framing, or other supporting construction with demolition equipment, stored materials, or accumulated debris.

21. Maintain utilities and systems indicated to remain in service and protect them from damage throughout demolition.

22. MEP contractors will identify, disconnect, cap, isolate, and make safe active equipment and systems within their respective scopes before demolition by this contractor.

23. After the applicable trade has made systems safe, this bid category shall remove and dispose of disconnected equipment, piping, ductwork, conduit, wiring, fixtures, supports, hangers, curbs, pads, and associated materials indicated for removal, unless specifically assigned to another bid category.

24. After the Electrical Contractor has de-energized, disconnected, cut, capped, terminated, and made safe the applicable electrical systems, physically demolish, remove, haul, and legally dispose of existing electrical equipment indicated for demolition, including main distribution equipment, switchboards, transformers, panelboards, large disconnects, associated conduit/raceways, supports, and similar equipment. Coordinate with the Electrical Contractor and do not begin demolition until Clark Construction Company has confirmed the affected equipment has been made safe.

25. Provide all labor, equipment, rigging, protection, access, and means and methods required to safely remove existing equipment from the building. This responsibility is entirely by this Bid Category and specifically includes MEP equipment designated for removal from the Cafeteria Wing Boiler Room and Boiler Room 78 at Whitehall Middle School, and the lower-level Boiler Room at Ealy Elementary.

26. Coordinate with MEP contractors to locate and identify systems serving demolition areas and systems passing through demolition areas that must remain operational.

27. Coordinate utility shutdowns with Clark Construction Company, the Owner, affected trades, and utility companies. Provide at least 72 hours’ notice when a shutdown is required, unless a longer period is required by the Contract Documents or Owner.

28. Do not interrupt utilities serving occupied or operational portions of the building until temporary or permanent alternate service has been coordinated and authorized.

29. Removal of materials remaining after asbestos-abatement work, including ceilings, light fixtures, framing, piping, ductwork, equipment, and other materials specifically released for demolition.

30. Participate in demolition coordination meetings and provide removal sequencing and means-and-method information necessary for the MEP trades and Clark Construction Company to coordinate shutdowns, disconnections, equipment removal, and temporary services.

31. All workers performing selective demolition shall receive required lead and asbestos awareness training before beginning work.

32. Perform worker exposure assessments and implement applicable lead-safe work practices for demolition operations that may disturb lead-containing materials.

33. Do not disturb known or suspected asbestos-containing materials or other hazardous materials unless explicitly included under a separately authorized scope. If suspected hazardous materials are encountered:

a. Stop work immediately in the affected area.

b. Secure the area against unauthorized access.

c. Notify Clark Construction Company.

d. Do not resume work until the area has been evaluated, abated or otherwise released for demolition.

34. Include all selective building demolition indicated or reasonably inferable from the demolition, structural, architectural, interiors, food-service, plumbing, mechanical, electrical, technology, fire-protection, security, and applicable new-work drawings.

35. Review new-work drawings to identify existing construction that must be removed to accommodate completed work, even when removal is not repeated on demolition drawings. Demolish and remove existing construction only to the extent required for the new work. Do not remove construction merely because it is exposed or accessible.

36. Where walls are removed, remove all associated components attached to or supported by the wall, including doors, frames, windows, glazing, markerboards, tackboards, tack strips, casework, countertops, accessories, devices, supports, fasteners, trim, and similar items, except items specifically indicated to remain, be salvaged, or be removed by another trade.

37. Selective building demolition includes, where indicated:

a. Interior non-load-bearing partitions and portions of masonry walls.

b. Doors, frames, hardware, storefronts, interior and exterior window systems, glazing, window treatments, and attachments.

c. Portions of brick, concrete masonry, cast-stone or limestone sills, wood fascia, soffits, and associated support framing.

d. Flooring, wall base, carpet tile, quarry tile, resilient flooring, underlayment, adhesives, mastics confirmed to be non-ACM, mortar beds, and flooring accessories.

e. Suspended ceiling tile, ceiling grid, gypsum-board ceilings, wood ceiling or wall cladding, hangers, framing, and associated ceiling-mounted items.

f. Casework, countertops, panel molding, overhead coiling doors, counters, markerboards, tackboards, toilet accessories, and other wall-mounted items.

g. Floor-access hatches and equipment pads.

h. Plumbing fixtures, disconnected piping, mechanical equipment, ductwork, disconnected electrical equipment, lighting, conduit, wiring, fixtures, devices, controls, technology components, fire-alarm components, supports, and hangers identified for removal.

i. Mechanical equipment including existing unit ventilators, fin-tube radiators, unit heaters, air-handling equipment, ductwork, steam/condensate piping, thermostats, controls, and associated items identified by the mechanical demolition plans.

j. Electrical equipment, devices, fixtures, and associated components indicated for removal. Electrical disconnecting, de-energizing, and making safe shall be by the Electrical Contractor.

k. Interior utility tunnels, pits, and housekeeping pads indicated for removal.

l. Demolition, removal, hauling, and disposal of existing interior concrete slabs, including sawcutting.

m. Items specifically indicated to be salvaged, reused, reinstalled, or turned over to the Owner.

38. Carefully remove portions of brick and concrete masonry walls at new openings.

Provide clean, accurate limits and temporary support as required. Leave final toothing or selective masonry preparation to the masonry contractor unless specifically indicated otherwise.

39. Salvage removed and undamaged exterior brick for reuse by Masonry Contractor.

40. Remove existing wood fascia or soffit only where shown as part of the building selective-demolition scope. Roof membrane, roof insulation, roof flashings, rooftop curbs, and roofing-system demolition are excluded.

41. Neatly cut openings plumb, square, and true to the dimensions required for new construction.

42. Sawcut masonry at junctures with construction to remain and remove masonry in controlled sections. Do not use demolition methods that loosen, crack, or damage adjacent masonry scheduled to remain.

43. Use cutting methods least likely to damage construction to remain. Use sawing, grinding, coring, or small power tools in lieu of uncontrolled hammering or chopping wherever practical.

44. Cut or drill from the exposed or finished side toward concealed surfaces where required to avoid damaging existing finished surfaces.

45. Remove existing fasteners, including screws, nails, anchors, pins, clips, and non- ACM adhesive or glue pods, from surfaces scheduled to remain. Leave surfaces ready for patching or subsequent work.

46. Remove existing flooring adhesive and mastic confirmed to be non-ACM by mechanical methods acceptable for the substrate and subsequent flooring system.

Do not use solvent-based adhesive strippers for resilient-flooring removal.

47. Grind floors only where necessary to remove non-ACM adhesive or mastic and produce a sound, clean substrate. Do not damage slabs or remove more concrete than necessary.

48. Salvage 2,000 square foot of carpet tile for patching around new unit ventilators in classrooms where carpet tile will not be replaced. Keep carpet tile dry and free from moisture, demolition debris, asbestos contamination, garbage, tack strips, and other materials that could prevent acceptance.

49. Items specifically indicated to be salvaged, reused, reinstalled, or turned over to the Owner remain the Owner’s property.

50. Carefully detach salvaged items without damage. Clean, label, pack or crate, inventory, and protect the items during handling and storage.

51. Store salvaged items in a secure location and deliver them to the Owner’s designated storage area as directed by Clark Construction Company.

52. Provide a closeout inventory identifying all items salvaged, reinstalled, or turned over to the Owner.

53. Provide, maintain, service, relocate, and remove dumpsters required exclusively for this bid category. Coordinate dumpster locations with Clark Construction Company and protect adjacent paving, floors, walls, doors, landscaping, and other surfaces from damage.

54. Demolition waste becomes the property of this contractor unless specifically designated to remain the Owner’s property. On-site sale or storage of demolition material is prohibited except for temporary secured storage approved by Clark Construction Company.

55. Remove demolition debris promptly and frequently enough to avoid overloading the building structure, restricting access, creating unsafe conditions, or disrupting occupied portions of the buildings.

56. Legally haul and dispose of demolition materials off site in accordance with applicable EPA notification, hauling, and disposal requirements.

57. Do not place hazardous materials, Owner-retained materials, or items designated for reuse in general demolition dumpsters.

58. Maintain demolition areas in a broom-clean and safe condition. At completion, remove debris, temporary materials, loose fasteners, dust, and demolition residue and leave affected areas ready for subsequent work.

59. Provide sawcutting for removal of interior concrete slabs-on-grade where required for:

a. Removal or abandonment of existing below-slab MEP systems.

b. Removal or infill of existing pipe utility tunnels.

c. Installation of new below-slab MEP systems.

d. New structural footing work.

e. Other interior work expressly indicated in the Contract Documents.

60. Coordinate final sawcut locations and dimensions with the structural and MEP contractors before cutting.

61. Sawcut the perimeter of slab areas to be removed. Cut concrete full depth at construction to remain and remove concrete without damaging adjacent slabs, reinforcing, foundations, utilities, or finishes. Refer to Section 024119.

62. Provide a unit price for additional interior slab sawcutting and removal not shown in the Contract Documents. State the unit of measurement and clearly identify whether the price includes scanning, sawcutting, breaking, removal, hauling, and disposal.

63. Before sawcutting or drilling, locate reinforcing, conduits, piping, utilities, and other concealed components using appropriate scanning or locating methods.

64. Temporarily cover or protect openings that are to remain after demolition.

65. Provide temporary protection of existing exterior concrete, paved surfaces, and lawn areas subject to construction traffic associated with this Bid Category’s Work. Repair any resulting damage to preconstruction condition.

EXCLUDE:

1. MEP contractors will identify, disconnect, cap, isolate, and make safe active equipment and systems within their respective scopes before demolition.

2. Sitework demolition and roofing demolition.

3. Removal of electrical equipment within Room B117.

4. Have the electrician complete the demolition in the electrical room at the cafeteria. Include a generator for temporary power if longer than a weekend.

Sequence the equipment demolition and new installation to minimize electrical downtime.

5. Temporary or partial removal and reinstallation of existing acoustical ceiling tile/grid outside the Middle School cafeteria-wing renovation area.

6. Exclude removal, handling, storage, transportation, and reinstallation of existing food-service equipment.

7. Hazardous-material abatement, including asbestos-containing materials and other regulated hazardous materials, unless specifically added to this Bid Category.

8. Final masonry toothing, trimming, preparation, and masonry infill required for new masonry construction.

9. Permanent architectural patching, new finishes, and finish restoration following demolition, except repair of damage caused by this Bid Category.

10. Selective removal of countertops, molding and trim at Media Center cabinetry

11. Permanent capping of existing ducts to be abandoned in place.

12. Final substrate preparation, leveling, skim coating, and moisture remediation remain the responsibility of the flooring contractor.

13. Removal of exterior mechanical louvers by Bid Category 23A/23B.

14. At Middle School Cafeteria Wing, north windows at cafeteria and kitchen and west windows at existing boiler room is by Asbestos Abatement Contractor.

Removal of south windows at cafeteria remains in Bid Category 02A.

ALLOWANCES:

1. Include a $2,500 allowance for lead exposure assessment

ALTERNATE PRICING:

• ALTERNATE A4: Tunnel infill in lieu of crack repair (Refer to floor plan showing approximate location of existing tunnel provided by Clark Construction

Company) o Include:

▪ Sawcutting and demolition of tunnel lid and structure o Exclude:

▪ Asbestos abatement

▪ Pipe removal from tunnel

▪ Engineered fill

▪ New slab on grade

• CLARK ALTERNATE 01: Temporary removal of existing window assembly at

Middle School Boiler Room #78 for MEP demolition and new MEP equipment o Include:

▪ Cost impact to means and methods of MEP equipment removal o Exclude:

▪ Window assembly removal and reinstallation

▪ Temporary window opening enclosure.

• CLARK ALTERNATE 02: Partial temporary removal and replacement of existing roof structure at Ealy Elementary Basement Boiler Room for MEP demolition. Refer to Clark Alternate 02 documents for reference.

o Include:

▪ Cost impact to means and methods of MEP equipment removal

▪ Crane costs for use during temporary partial roof and structural steel removal and replacement and MEP equipment removal.

o Exclude:

▪ Removal and replacement of the existing roof structural decking where indicated

▪ Temporary and weathertight protection of exposed temporary roof opening

▪ Warning lines and other barricades required for temporary fall protection

▪ Temporary removal and reinstallation of structural steel joists

▪ Temporary structural steel reinforcement.

Bid Category 03A – Concrete

BID CATEGORY 03A - Concrete

GENERAL – The following shall not be interpreted as a complete itemization of the work to be performed under this Bid Category. This Bid Category Trade Contractor shall be responsible to perform all work reasonably interpreted to be included in its scope of work in accordance with the drawings and specifications in addition to these Bid Category notes of clarification.

BASE SPECIFICATION(S)

Include ALL WORK specified or reasonably inferred

DIVISION 00 PROCUREMENT AND CONTRACTING REQUIREMENTS

DIVISION 01 GENERAL REQUIREMENTS

DIVISION 03 CONCRETE

042200 CONCRETE UNIT MASONRY

079200 JOINT SEALANTS

321313.1 CONCRETE PAVINGS (MS)

321313.2 CONCRETE PAVING (SHORELINE)

323300.2 SITE FURNISHINGS (SHORELINE)

PARTIAL SCOPE OF WORK / REFERENCE SPECIFICATION(S)

Include PORTIONS of the Work specified and/or requirements as it pertain to the work of this Bid Category.

015000 TEMPORARY FACILITIES AND CONTROLS

024119 SELECTIVE DEMOLITION

220500 PLUMBING GENERAL CONDITIONS

230500 MECHANICAL MATERIALS AND METHODS

260500 WORK IN EXISTING BUILDING

260543 UNDERGROUND DUCTS AND MANHOLES

DIVISION 31 EARTHWORK

321123.1 AGGREGATE BASE COURSES – MIDDLE SCHOOL

321123.2 AGGREGATE BASE COURSES – SHORELINE

323300.1 SITE FURNISHINGS (MS)

INCLUDE (Furnish and Install u.n.o):

Other Forms.

2. Provide all labor, supervision, layout, engineering coordination, materials, equipment, formwork, reinforcing, accessories, concrete placement, finishing, curing, protection, and cleanup required for the complete concrete work shown in the Contract Documents at:

a. Whitehall Middle School, including interior and exterior concrete.

b. Shoreline Elementary, including exterior concrete site improvements.

3. Review all architectural, structural, civil, landscape, food-service, plumbing, mechanical, electrical, and technology drawings for concrete work, penetrations, embeds, equipment pads, slab openings, elevations, and coordination requirements.

4. Field-verify existing dimensions, elevations, slab thicknesses, access, adjoining construction, and conditions before Work. Notify Clark Construction Company of discrepancies before proceeding.

5. Include phased work, multiple mobilizations, small placements, and return visits required by project schedule and sequencing.

6. Coordinate each placement with Clark Construction Company and affected trades.

Do not place concrete until required underground work, inspections, reinforcing, sleeves, embeds, anchor rods, blockouts, vapor barrier, geofoam, and adjoining work have been completed and accepted.

7. Protect existing construction, finishes, paving, utilities, landscaping, and concrete scheduled to remain. Repair damage caused by this contractor at no added cost.

8. Remove concrete washout, formwork, reinforcing scraps, excess concrete, packaging, and other debris generated by this contractor.

9. Review demolition limits before beginning new concrete work. Notify Clark Construction Company of inadequate limits, unsuitable slab edges, damaged concrete, or conditions affecting the new work.

10. Include minor preparation of existing concrete surfaces and exposed slab edges required for the new work, including cleaning, removal of loose material, localized chipping, roughening, and preparation for bonding.

11. Include drilling, coring, and cutting required solely for new reinforcing dowels, adhesive anchors, or embeds included in this Bid Category.

12. Drill and install reinforcing dowels into existing concrete where indicated.

13. Provide all new interior concrete footings, foundations, thickened slabs, turned-down slab edges, slab infills, and related concrete per plans and specifications.

14. Furnish and install reinforcing bars, welded-wire reinforcement, dowels, chairs, supports, ties, couplers, and reinforcing accessories associated with the concrete work.

15. Coordinate reinforcing dowels associated with new masonry construction with the Masonry contractor.

16. Provide formwork, bulkheads, pockets, recesses, blockouts, keyways, temporary supports, and construction joints required for the work.

17. Provide flowable fill or concrete fill where shown as part of the concrete details.

18. Provide excavation, subgrade preparation, disposal of excess excavated material, backfill, and compaction required for all new interior footings.

19. Provide backfill, as needed, for limits of utility tunnel demolition.

20. Provide new interior slabs-on-grade shown on the drawings, including the new slabs associated with the Cafeteria Restrooms.

21. Provide concrete slab infill after completion and inspection of underground plumbing, mechanical, electrical, and structural work, including infill at:

a. Underground utility trenches.

b. New wall footings and foundations.

c. Removed floor openings and access areas.

d. Areas disturbed for equipment or utility installation.

e. Utility tunnel areas where new slab construction is included.

f. Other locations shown in the Contract Documents.

22. Before placing slab infill, verify that:

a. Existing concrete demolition is complete.

b. Underground work has been inspected and accepted.

c. Required geofoam, fill, or subbase is complete.

d. Existing slab edges are clean and sound.

e. Reinforcing and dowels are installed.

f. Vapor barrier is complete and sealed.

g. Sleeves, drains, embeds, blockouts, and penetrations are in place.

23. Provide reinforcing, vapor barrier, joint materials, concrete placement, finishing, curing, and protection associated with the new slabs and infills.

24. Match adjacent slab thickness and finished elevation unless otherwise indicated.

25. Provide thickened slabs, turned-down edges, slab depressions, recessed slabs, sloped slabs, and re-entrant-corner reinforcement where indicated.

26. Coordinate slab elevations and depressions with flooring, tile, thresholds, floor mats, drains, doors, equipment, casework, and adjacent construction.

27. Finish slabs to receive the scheduled flooring or exposed-concrete finish.

28. Provide high-early-strength concrete for the Cafeteria Restroom footing and slab placements when required to maintain the approved project schedule, subject to compliance with the specified concrete performance requirements and approved mix-design submittal.

29. Furnish and install structural geofoam below new Middle School slabs where shown, including the restroom slab construction. Cut and fit geofoam tightly around foundations, penetrations, utilities, blockouts, and adjoining construction.

Fill or correct unacceptable gaps per the approved manufacturer requirements.

30. Protect geofoam from damage prior to concrete placement.

31. Provide all exterior concrete shown at the Middle School, including:

a. Concrete sidewalks and paving.

b. Courtyard concrete slabs.

c. Concrete stoops and exterior thresholds.

d. Flowable fill.

e. Landscape curbs.

f. Steps and landings where indicated.

g. Concrete associated with exterior doors.

h. Other exterior concrete shown in the architectural, structural, civil, or landscape documents.

32. Provide the 5-by-5-foot concrete stoop at Door B117, centered on the door and constructed per the architectural, structural, and site drawings.

33. Provide concrete at new exterior door thresholds where shown, including doweling to existing foundations or slabs when detailed.

34. Form and finish exterior concrete to the required lines, grades, elevations, slopes, thicknesses, and drainage patterns. Provide positive drainage without unintended ponding.

35. Provide all concrete site improvements shown at Shoreline Elementary, including:

a. Concrete sidewalks.

b. Integral concrete curb walks.

c. Standard concrete curbs.

d. Concrete curb and gutter.

e. Concrete curb ramps.

f. Detectable warning surfaces.

g. Transitions from new concrete to existing concrete.

h. Concrete associated with the staff sidewalk, landscape-bed, curb, bus-drop-off, and parking improvements.

i. Other concrete paving shown on the Shoreline civil and landscape drawings.

36. Provide the specified fiber reinforcement in Shoreline concrete walks, curbs, curb-and-gutter, and curb ramps.

37. Provide reinforcing bars, including curb reinforcing and “Gator Bar” reinforcing, where shown in the Shoreline details.

38. Provide expansion joints at buildings, immovable objects, transitions to existing pavement, and other locations shown.

39. Provide sawcut control joints at the spacing and depth shown.

40. Provide transitions from new concrete to existing concrete that are smooth, flush, and free of abrupt elevation changes.

41. Furnish and install new bollards at Shoreline Elementary, including concrete fill.

42. Coordinate concrete placement and recesses associated with site furnishings not furnished and installed by this Bid Category, including surface mounted site furnishings noted in Section 323300.1. Provide properly finished concrete surfaces suitable for anchors.

43. Verify readily observable lines, grades, elevations, slopes, and base conditions before setting forms. Notify Clark Construction Company of visible deficiencies before proceeding. Installation of forms or concrete constitutes acceptance of readily observable base elevations and conditions.

44. Include minor trimming immediately adjacent to forms.

45. Protect the accepted base from rutting, contamination, displacement, and damage caused by concrete operations. Repair damage caused by this contractor.

46. Receive, unload, store, lay out, and install items furnished by other trades for embedment in concrete, including anchor rods, embed plates, bearing plates, edge angles, inserts, sleeves, frames, and blockouts. Verify the location, elevation, projection, and alignment of anchor rods and embeds with the furnishing trade before concrete placement.

47. Protect anchor-rod threads during concrete placement.

48. Infill blockouts and pockets after the affected trade has completed and inspected its work.

49. Provide all new concrete equipment/housekeeping pads, including formwork.

Coordinate pad dimensions, elevations, reinforcement, housekeeping height, anchor requirements, edge clearances, and equipment access with the applicable equipment contractor before placement.

50. Provide concrete crack repairs at locations identified in the Contract Documents.

Route, clean, and fill cracks per the structural details, including the specified depth-to-width relationship, joint filler or crack adhesive, backer rod, silica sand, and finishing requirements.

51. Repair chipped, cracked, stained, honeycombed, or otherwise damaged new concrete caused by this contractor.

52. Coordinate interior slab finishes with the Flooring contractor.

53. Provide broom finish at exterior walking surfaces and other locations shown.

54. Do not add water to concrete surfaces during finishing.

55. Provide concrete delivery tickets, batch information, and placement records required by the specifications for slump, air content, temperature, unit weight, and compressive-strength testing.

56. Provide all contraction, construction, expansion, and isolation joints, including dowels, preformed joint filler, bond breakers, and accessories required by the drawings and specifications.

57. Submit joint layouts where required before concrete placement.

58. Coordinate interior joints with walls, columns, doors, flooring layouts, drains, slab depressions, and equipment pads.

59. Coordinate exterior joints with building lines, curb lines, paving patterns, stoops, steps, ramps, adjacent concrete, and existing improvements.

60. Sawcut contraction joints in newly placed concrete within the time required by the

Contract Documents to prevent uncontrolled cracking.

61. Provide specified slab flatness, levelness, elevation, slope, finish, and surface tolerances. Correct nonconforming new concrete at no added cost.

62. Cure concrete per the specifications, approved mix requirements, and applicable

ACI requirements.

63. Provide hot-weather and cold-weather protection required to complete the scheduled work.

64. Use curing products compatible with flooring, coatings, adhesives, waterproofing, sealants, and other subsequent finishes.

65. Protect completed concrete from traffic, weather, staining, impact, cutting operations, equipment leaks, and damage.

66. Prevent concrete spatter from reaching adjacent construction. Promptly clean affected surfaces without damaging finishes.

67. Do not permit traffic or loading on concrete before the required curing period or concrete strength has been achieved.

68. Coordinate with the Owner’s testing and special-inspection agencies.

69. Correct deficient or nonconforming work at no added cost.

70. Pay for additional testing resulting from failed tests or deficient work when required by the Contract Documents.

71. Provide new flowable fill (engineered fill) at new frost protected door threshold per detail 10/S201 at the Middle School.

72. Coordinate with Sitework contractor for installation of stainless channel drain per

Sheet L014 at the Middle School. Channel drain furnished and installed by Sitework contractor.

EXCLUSIONS

1. Exterior work reserved for Bid Category 33A, including excavation, earthwork, granular fill, subgrade preparation, undercutting, soil stabilization, backfill, aggregate-base installation, grading, and compaction.

2. Asphalt paving and asphalt patching.

3. Underground utility piping, trench drains, channel drains, catch basins, manholes, valve boxes, and utility structures, except forming or pouring concrete around properly installed items.

4. Foundation waterproofing, dampproofing, and foundation drainage systems.

5. Masonry, masonry grout, and masonry reinforcing, except concrete reinforcing dowels and embeds specifically assigned to this Bid Category.

6. Structural and miscellaneous steel, except receiving and installing items furnished by others for installation in concrete.

7. Finish flooring, tile, carpet, coatings, flooring underlayments, skim coats, patching compounds, and leveling materials required solely for finish flooring.

8. Final grading, topsoil, seeding, planting, and landscaping.

9. Owner-provided concrete testing and special-inspection services.

10. General architectural joint sealants not located within or directly adjoining concrete work included in this Bid Category.

11. General repair of unidentified existing cracks or existing damaged concrete.

12. Sawcutting and demolition of existing exterior concrete scheduled to be removed, unless specifically directed by Clark Construction Company.

13. Excavation and backfill of subgrade associated with interior slabs removed for

MEP work.

14. Sawcutting and removal of interior slabs on grade required for demolition purposes and new MEP and structural footings.

1. Provide allowance of $15,000 for replacement of damaged concrete sidewalks as a result of construction operations.

UNIT PRICING (Section 012200):

• Provide unit pricing (SF) for removal and replacement of interior concrete slab-on-grade.

ALTERNATE PRICING:

• ALTERNATE A4: Tunnel infill in lieu of crack repair (Refer to photos and approximate location of existing tunnel provided by Clark Construction

Company) o Include:

▪ Engineered fill

▪ New slab on grade in accordance with specification requirements o Exclude:

▪ Sawcutting and demolition of tunnel lid and structure

▪ Asbestos abatement

▪ Pipe removal from tunnel

Bid Category 05A – Structural & Miscellaneous Steel

BID CATEGORY 05A - Structural and Miscellaneous Steel responsible for performing all work reasonably interpreted to be included in its scope of work in accordance with the drawings and specifications in addition to these Bid Category notes of clarification.

BASE SPECIFICATION(S)

Include ALL WORK specified or reasonably inferred

DIVISION 00 PROCUREMENT AND CONTRACTING REQUIREMENTS

DIVISION 01 GENERAL REQUIREMENTS

051200 STRUCTURAL STEEL FRAMING

053100 STEEL DECKING

of this Bid Category.

015000 TEMPORARY FACILITIES AND CONTROLS

061000 ROUGH CARPENTRY

079200 JOINT SEALANTS

078413 PENETRATION FIRESTOPPING

INCLUDE (Furnish and Install unless noted otherwise (u.n.o.)

Other Forms.

2. Provide all labor, supervision, engineering, detailing, materials, fabrication, delivery, unloading, hoisting, erection, welding, bolting, temporary bracing, equipment, and cleanup required for complete structural and miscellaneous steel work.

3. Include all structural and miscellaneous steel shown or reasonably required by the architectural, structural, mechanical, and equipment drawings.

4. Field-verify existing framing, dimensions, elevations, bearing conditions, and connection locations before fabrication.

5. Provide erection and fabrication shop drawings, connection details, anchor-rod plans, embed-setting plans, delegated-design calculations, product data, welding procedures, and required certifications.

6. Submit anchor-rod and embed-setting drawings within three weeks of award or

Notice to Proceed and early enough to avoid delaying concrete and masonry work.

7. Coordinate framing, supports, openings, penetrations, and loads with mechanical, electrical, plumbing, roofing, masonry, concrete, door, and equipment contractors.

8. Coordinate final equipment sizes, weights, curb dimensions, duct openings, and support locations before fabrication. Report conditions differing from the drawings before proceeding.

9. Furnish structural beams, channels, angles, plates, tubes, clips, bent plates, closures, stiffeners, connection materials, bolts, welds, anchors, and other steel shown.

10. New roof-opening frames for ducts, rooftop equipment, and openings larger than

18 inches, including channels, angles, clips, plates, welds, and connections to existing framing. Field-weld frames as required for installation in the existing building.

11. Steel angle support at all new roof drains per detail 3/A120.

12. All C-channels and associated connections at the locations shown on the roof-framing plan.

13. Reinforce the two existing beams supporting RTU-1 with the specified steel plates welded to the bottom flanges.

14. Provide the lintel angles at the indicated roof-level opening, including required end bearing and connections.

15. Provide framing and reinforcement at existing joists and beams where new equipment supports or openings do not occur at panel points, including supplemental angles and plates shown in the structural details.

16. Provide flat channels or other framing below roof-mounted equipment as detailed.

Field-verify existing deck profile and size channels to provide a level bearing surface.

17. Furnish and install the continuous galvanized steel angle bolted to the existing foundation wall for support of the new masonry veneer.

18. Furnish and install structural steel lintels at new openings where indicated, including the painted exposed lintel at the new electrical-room door opening.

19. Furnish loose steel lintels for installation by the Masonry contractor. Clearly identify each lintel by opening and installation location.

20. Furnish masonry-support angles, shelf angles, loose lintels, bearing plates, wall anchors, and related steel shown. Masonry shall install loose items embedded in or supported by masonry unless specifically indicated otherwise.

21. Furnish bent plates, angles, clips, and other steel required for top-of-wall bracing of new CMU walls. Include welding to existing framing per detail 7/S301.

22. Furnish and install miscellaneous steel supports, frames, angles, plates, and blocking required for overhead doors and other equipment where specifically detailed as steel work.

23. Furnish and install the roof-access ladder shown on the roof plans, including side rails, rungs, wall anchors, supports, fasteners, side-rail extensions, and required clearances.

24. Provide the complete fall-arrest system for any ladder exceeding 24 feet, including cable, brackets, tensioner, shock absorber, sleeves, connectors, and termination components as detailed.

25. Furnish anchor rods, leveling plates, bearing plates, embed plates, inserts, and other items indicated as furnished by Steel Contractor and installed by Concrete or

Masonry Contractors.

26. Deliver embedded items early enough to meet the construction schedule. Provide setting drawings, templates, dimensions, and installation information to the installing contractor.

27. Verify installed anchor rods, embeds, plates, and bearing locations before mobilizing for erection. Report discrepancies to Clark Construction Company in writing before proceeding.

28. Do not modify, bend, cut, weld, or relocate anchor rods without approval from the

Structural Engineer.

29. Provide holes, slots, studs, clips, and connection points required for other trades to connect to structural or miscellaneous steel where shown or coordinated before fabrication.

30. Coordinate attachment of roof framing and equipment supports without damaging existing roof deck, framing, utilities, or construction to remain.

31. Provide temporary shoring, bracing, and supports required to maintain stability during erection. Remove temporary supports only after the permanent system is complete and stable.

32. Provide crane and hoisting equipment, rigging, qualified operators, support mats, temporary power, and access equipment required for steel erection.

33. Repair existing construction damaged by steel erection, welding, hoisting, or material handling.

34. Fabricate and erect steel in accordance with the project specifications, AISC requirements, approved shop drawings, and specified erection tolerances.

35. Use certified welders qualified for the welding performed. Submit current welder certifications before beginning work.

36. Provide welding procedures and inspection documentation required by the Contract

Documents.

37. Remove weld slag, spatter, rust, loose scale, and contaminants from steel surfaces.

38. Shop-prime steel where specified. Do not prime surfaces to be welded, embedded in concrete, galvanized, fireproofed, or otherwise required to remain uncoated.

39. Galvanize exterior exposed steel, masonry-support angles, roof ladders, and other steel indicated to be galvanized.

40. Touch up damaged shop primer and galvanizing after erection. Use zinc-rich repair coatings on damaged galvanized surfaces.

41. Provide the specified finish at exposed steel lintels and other steel exposed to view.

Coordinate final field painting with the Painting contractor.

42. Protect completed roofing during steel work. Coordinate roof penetrations and supports with the Roofing contractor. Roofing repairs required because of steel operations shall be completed by the Roofing contractor at this contractor’s expense.

43. Provide required testing and inspection access. Correct deficient welds, connections, materials, or erection work and pay for retesting required because of nonconforming work.

44. Remove excess steel, welding rods, fasteners, packaging, temporary supports, and erection debris. Leave work areas clean and safe.

45. Comply with OSHA and MIOSHA steel-erection requirements, including 29 CFR

1926 Subpart R.

46. Provide a site-specific erection plan prepared by the Steel Erector’s qualified person when required by OSHA or the selected erection methods. Keep the current plan onsite and provide a copy to Clark Construction Company. Changes shall be approved by the qualified person. OSHA identifies Appendix A as nonmandatory guidance for site-specific erection plans.

47. Preplan all overhead hoisting operations and coordinate crane locations, delivery routes, material staging, and pedestrian and vehicle controls with Clark

Construction Company.

48. Provide structural support framing required for any roof curbs installed by other trades.

Exclusions:

1. Cold-formed metal framing

2. Unistrut and equipment-specific supports

3. Final field painting, except required shop primer and field touch-up

4. Concrete and masonry installation of furnished embeds, with this Work Category providing setting information and timely delivery of embeds.

5. Concrete foundations, housekeeping pads, equipment pads, and concrete fill, except steel items specifically furnished for embedment therein.

6. Masonry and masonry grout.

7. Wood framing, wood blocking, plywood/sheathing, and roofing nailers.

8. Mechanical/electrical equipment-specific supports, Unistrut, piping supports, duct supports, and equipment rails assigned to the applicable MEP Trade Contractor.

9. Roof curbs, roofing membranes, roofing flashings, and roofing-system waterproofing.

10. Minor roof decking infill by Bid Category 07A.

11. Finish field painting by Bid Category 09C, except specified shop coatings and required touch-up of shop primer or galvanizing.

12. Bollards noted in Section 323300.2 to be furnished and installed by Concrete

Contractor.

ALTERNATES:

demolition. Refer to Clark Alternate 02 documents for reference.

o Include: Temporary removal and reinstallation of structural steel joists;

Temporary structural steel reinforcement.

o Exclude: Removal and replacement of the existing roof structural decking where indicated; Temporary and weathertight protection of exposed temporary roof opening; Warning lines and other barricades required for temporary fall protection.

Bid Category 06A – Rough and Finish Carpentry & General Trades

BID CATEGORY 06A – Rough and Finish Carpentry & General Trades responsible for performing all work reasonably interpreted to be included in its scope of work in accordance with the drawings and specifications in addition to these Bid Category notes of clarification.

BASE SPECIFICATION(S)

Include ALL WORK specified or reasonably inferred.

DIVISION 00 PROCUREMENT AND CONTRACTING REQUIREMENTS

DIVISION 01 GENERAL REQUIREMENTS

024119 SELECTIVE DEMOLITION

061000 ROUGH CARPENTRY

061600 SHEATHING

062013 EXTERIOR FINISH CARPENTRY

062023 INTERIOR FINISH CARPENTRY

064023 INTERIOR ARCHITECTURAL WOODWORK

066400 PLASTIC PANELING

072726 FLUID-APPLIED MEMBRANE AIR BARRIERS

079200 JOINT SEALANTS

081113 HOLLOW METAL DOORS AND FRAMES

081416 FLUSH WOOD DOORS

083313 COILING COUNTER DOORS

083613 SECTIONAL DOORS

087100 DOOR HARDWARE

097200 WALL COVERINGS

102113.19 PLASTIC TOILET COMPARTMENTS

102600 WALL AND DOOR PROTECTION

102800 TOILET, BATH, AND LAUNDRY ACCESSORIES

122413 ROLLER WINDOW SHADES

123661.16 SOLID SURFACING COUNTERTOPS

of this Bid Category.

015000 TEMPORARY FACILITIES AND CONTROLS

054000 COLD-FORMED METAL FRAMING

072100 THERMAL INSULATION

074293 SOFFIT PANELS

076200 SHEET METAL FLASHING AND TRIM

078413 PENETRATION FIRESTOPPING

078443 JOINT FIRESTOPPING

079200 JOINT SEALANTS

092216 NON-STRUCTURAL METAL FRAMING

092900 GYPSUM BOARD

072100 THERMAL INSULATION

Include (Furnish and Install unless noted otherwise (u.n.o):

Other Forms.

2. Provide all Rough Carpentry, Finish Carpentry, Architectural Woodwork, Casework, Doors/Frames/Hardware, General Trades specialties, and related Work assigned to this Bid Category by the Contract Documents, including accessories, anchors, fasteners, supports, blocking, sealants, and incidental materials.

3. Field verify dimensions and existing conditions affecting this Work. Coordinate fabrication and installation with architectural, structural, MEP, roofing, metal stud/drywall, masonry, glazing, flooring, food-service and affected trades.

4. Provide required product data, shop drawings, samples, hardware schedules, finish samples, and other submittals associated with this Work.

5. Coordinate deliveries and phase deliveries as necessary to meet the project schedule and occupied-school logistics.

6. Store materials off the floor on pallets, carts, dunnage, or other movable supports and protect materials against moisture, damage, theft, and deterioration.

7. Furnish and install commercial-grade interior floor protection, such as Ram Board or approved equivalent, in existing carpeted and finished areas used for access or affected by selective ceiling demolition, except where the flooring is scheduled for removal. Maintain and remove protection when directed by Clark Construction Company.

a. Match areas where partial ceiling removal is shown in corridors. Extend into affected classrooms, except those where carpeting is shown to be replaced.

b. Refer to the Middle School interior logistics plan for additional areas of required floor protection.

8. Furnish and install all wood blocking, nailers, furring, plywood backing, grounds, and rough carpentry shown in the Contract Documents or required for secure attachment of Work to walls, ceilings, roofs, or other construction, except blocking specifically assigned to another Bid Category.

9. Include concealed blocking and backing necessary for specialties, casework, architectural woodwork, displays, markerboards, tackboards, projection screens, televisions/displays, toilet accessories, mirrors, roller shades, handrails, wall protection, equipment, and other wall-mounted components shown in the Contract Documents.

10. Coordinate blocking dimensions, elevations, locations, loads, and attachment requirements with the furnishing/installation contractor before walls and ceilings are enclosed.

11. Provide fire-retardant-treated lumber and plywood where required.

12. Provide pressure-preservative-treated lumber where required under the Contract

Documents and appropriate fasteners compatible with treated materials.

13. Provide all required rough-carpentry fasteners, anchors, clips and attachment components.

14. At roofing conditions, coordinate blocking/nailers carefully with the Roofing scope and Contractor.

15. Provide flexible separator/flashing between preservative-treated wood and metal decking where required under Section 061000.

16. Furnish and install structural wood framing, blocking, connections, plywood/sheathing, and related components shown on the Structural Drawings as this Work.

17. Coordinate removal limits of existing wood framing with Selective Demolition before demolition so sufficient existing structure remains for proper connection of new construction.

18. Furnish and install structural wood connections and blocking to structural steel where indicated by the Structural Drawings.

19. Reinforce existing wood framing where indicated by the Structural Drawings.

20. Provide wood-framed openings and plywood/sheathing required for new RTU ductwork and other indicated roof penetrations. Coordinate final opening sizes and locations with Mechanical.

a. Include modifications to…