B08_Att_01_140PP027Q0018_Specs.pdf

OREGON CAVES NATIONAL

MONUMENT & PRESERVE

REHABILITATE KIOSK

RESTROOMS TO IMPROVE VISITOR

ACCESS AND EXPERIENCE

PMIS No. 215914

CONSTRUCTION SPECIFICATIONS

NATIONAL PARK SERVICE

PACIFIC WEST REGION

Specifications - Rehabilitate Kiosk Restrooms, Oregon Caves NM&P

DIVISION 01 – GENERAL REQUIREMENTS

Section 01 10 00 – Summary of Work

PART 1 – GENERAL

ITEM 1 – DESCRIPTION OF WORK

1.1 Background

The existing public restroom facilities are deteriorated, outdated, and non-compliant with current accessibility and sanitation standards. Interior finishes have exceeded their service life and building envelope penetrations have allowed rodent intrusion. Plumbing and electrical systems are obsolete and no longer meet current safety codes.

The restroom interiors will be gutted to structural framing, replace mechanical, plumbing, and electrical systems, install sanitary wall finishes, construct fully compliant ADA restroom layouts, and implement permanent rodent exclusion measures in accordance with National Park Service cultural resource protection requirements.

1.2 Work Covered by Contract Documents

The contractor shall furnish all labor, materials, tools, supervision, and incidentals necessary to complete the following work:

A. Interior Demolition

• Remove all interior finishes to exposed structural framing, including:

o Ceramic wall tile and mortar bed o Gypsum board, paneling, and trim o Suspended and framed ceiling assemblies o Thermal and vapor insulation

• Remove all plumbing fixtures, piping, valves, and supports

• Remove all electrical fixtures, devices, wiring, and associated equipment

• Remove all restroom partitions and accessories

• Remove all floor tiles, adhesives, and setting bed to expose structural slab

• All materials that a removed need to be hauled off site to an approved disposal or recycling center.

All demolition shall comply with OSHA 29 CFR 1926 Subpart T and EPA construction waste handling regulations.

B. Reconstruction

The contractor shall reconstruct the restroom interiors including:

• Installation of new plumbing distribution and vent systems per IPC 2021

• Installation of new branch electrical circuits and lighting systems per NFPA 70

(NEC)

• Installation of new sanitary PVC wall and ceiling panel systems o Combined walls and ceilings: 884 SF o Wall panels shall overlap top lip of tile cove base and seal to create water-tight seam. See section 1.5 concrete floor repair for tile information.

• Installation of ADA compliant partitions and fixtures o One ADA stall per restroom at 60 in. x 60 in. clear space o Additional stalls sized at 42 in. x 60 in.

• Implementation of rodent-proofing of all penetrations and voids

1.3 ADA Restroom Requirements

Each restroom shall be reconfigured to meet ABA Accessibility Standards (ABAAS) and 2010 ADA Standards, including:

• One wheelchair accessible toilet compartment per restroom with:

o 60 in. minimum clear width o 60 in. minimum turning space

• Grab bars installed per ADA Section 604

• Accessible lavatories with:

o Knee clearance of 27 in. minimum o Insulated P-traps

• Mirror and accessory mounting heights compliant with ADA Section 603

• Door maneuvering clearances compliant with ADA Section 404

1.4 Rodent Exclusion Scope

All building envelope penetrations shall be sealed using:

• 16-gauge stainless steel rodent mesh

• Rodent-resistant polyurethane sealants

• Galvanized flashing closures were required

Repairs shall be concealed to preserve the historic exterior appearance.

1.5 Concrete Floor Repair

Full Concrete Slab Repair

Upon removal of existing floor finishes, the COR will evaluate the condition of the existing slab. The contractor will repair, seal and refinish 156 SF of concrete slab as follows:

• Wash slab removing all dirt, grease, residue etc. with approved detergent. Detergent shall be compatible with crack repair and slab membrane products. Rinse clean and dry thoroughly.

• Repair structural slab cracks 1/8” wide or greater with hybrid elastomeric adhesive-sealant (Laticrete Hydro Ban Fillet & Sealant or NPS approved equal).

• Apply load bearing waterproofing/crack isolation membrane throughout concrete slab surface (Laticrete Hydro Ban or NPS approved equal).

• Troubleshoot, clear, and repair non-functional floor drains, and verify function by testing for proper flow with no backup or leaks.

• Install new floor finish: Install new 2”x2” square tile floor finish. Tiles shall conform with ANSI A326.3, slip-resistant porcelain tile with dynamic coefficient of friction

(DCOF) of 0.42 or greater when wet. Install new 4”x4” glazed porcelain tile cove base over ¼” thick cement backer board. Provide manufacturer specifications for tile, mortar and grout for NPS approval prior to construction. Floor tile color to match similar to existing tan to dark-tan random assortment, cove base tile to match new PVC wall panel color.

1.6 Payment

Payment will be made at the CLIN lump sum price, or in accordance with milestones achieved per the approved Schedule of Values.

1.7 Period of Performance

All work shall be completed within:

90 calendar days from Notice to Proceed, including 10 weather days.

ITEM 2 – EXISTING UTILITIES

The contractor shall:

• Verify and locate all existing utilities prior to demolition

• Coordinate shutdowns with the COR at least 72 hours in advance

• Maintain lockout/tagout procedures per OSHA 1926.417

Any damage to utilities shall be repaired at no additional cost to the Government.

ITEM 3 – CONTRACTOR’S USE OF PREMISES

The building is a historic structure; therefore:

• Exterior fabric shall not be altered

• Penetrations shall not be enlarged

• All work shall comply with Secretary of the Interior’s Standards for Rehabilitation

Dust containment barriers shall be installed in accordance with SMACNA IAQ Guidelines.

ITEM 4 – COMMENCEMENT, PROSECUTION, AND COMPLETION

The contractor shall submit a baseline schedule showing:

• Demolition

• Rough-in work

• Flooring work

• Wall panel installation

• Fixture installation

• Inspection and closeout

ITEM 5 – EXAMINATION OF SITE

Bidders are required to visit the site and verify:

• Existing dimensions

• Structural conditions

• Utility routing

• ADA feasibility prior to bid submission

ITEM 6 – ABBREVIATIONS AND STANDARDS

The following standards govern this work:

• IBC 2021

• IPC 2021

• NFPA 70

• ABA Accessibility Standards

• OSHA 29 CFR 1926

• ACI 318 and ACI 302

• ASTM E84 (interior finish flame spread)

ITEM 7 – ACCIDENT PREVENTION

The contractor shall prepare a site-specific Accident Prevention Plan (APP) including:

• Silica exposure mitigation per OSHA 1926.1153

• Confined space hazard evaluation

• Demolition sequencing hazard analysis

ITEM 8 – PRECONSTRUCTION CONFERENCE

A preconstruction conference will be held to review:

• Historic protection requirements

• Rodent exclusion methods

• Utility shutdown procedures

• Construction sequencing

ITEM 9 – SUBMITTALS

The contractor shall submit:

• ADA partition shop drawings

• Product data for:

o Plumbing fixtures o Lighting fixtures o PVC wall systems o Rodent mesh o Concrete mix design

Submittals shall be transmitted using NPS Form CM-16.

ITEM 10 – TEMPORARY SERVICES

The contractor shall provide:

• Temporary lighting

• Temporary power

All temporary installations shall comply with OSHA 1926 Subpart K.

Note: Worker and visitor sanitation facilities are available at the Historic District, approximately 900 feet from the project site.

ITEM 11 – PROJECT CLOSEOUT

Closeout shall include:

• As-built drawings of plumbing and electrical

• Warranty documentation

• Photo documentation of concealed rodent exclusion measures

PART 2 – PRODUCTS

2.1 Plumbing Fixtures

• Sensor-operated ADA water closets, Zurn Elkay or approved equal

• Wall-mounted or floor ADA lavatories with concealed carriers

2.2 Partitions

Partitions shall be:

• Solid phenolic or stainless steel

• ADA compartment sized 60 in. x 60 in.

2.3 Lighting

Lighting shall be:

• IK10 vandal-resistant LED

• Wet location rated

• Equipped with occupancy sensors

2.4 Wall and Ceiling Panels

Provide:

• Extruded PVC sanitary panels: Trusscore wall panel or equal

• Antimicrobial sealant at all seams

• Class A flame spread rating per ASTM E84

PART 3 – EXECUTION

Phase 1 – Mobilization and Protection

• Install temporary barriers and signage

• Protect exterior historic materials

Phase 2 – Interior Demolition

• Remove all finishes and systems to structural framing

• Segregate recyclable materials

• Control silica dust using wet methods and HEPA vacuums

Phase 3 – Rodent Exclusion Installation

• Identify all penetrations and voids

• Install stainless steel mesh secured with corrosion-resistant fasteners

• Seal all joints and seams

Phase 4 – Rough-In Installation

• Install new water supply and DWV piping per IPC

• Install branch circuits in EMT where exposed

Phase 5 – Concrete Floor Repair

• Wash slab and repair structural slab cracks 1/8” wide or greater

• Apply load bearing waterproofing/crack isolation membrane

• Troubleshoot, clear, and repair non-functional floor drains

• Install new floor finish (tile)

Phase 6 – Wall and Ceiling Panel Installation

• Install PVC panels with concealed fasteners

• Seal joints to create cleanable, pest-resistant surfaces

Phase 7 – Fixture and Partition Installation

• Installing ADA compartments

• Install grab bars anchored to structural backing

• Install lavatories and accessories at ADA mounting heights

Phase 8 – Electrical and Lighting Commissioning

• Test GFCI and occupancy sensors

• Verify minimum 30 foot-candles illumination

Phase 9 – Testing and Inspection

• Perform plumbing pressure tests

• Conduct final ADA inspection with COR

END OF SECTION 01 10 00

Existing Site Conditions (Photographs):