PRC_-_Cushing_Street_Skate_Park_Performance_Specification.pdf

Cushing Street Skate Park, City of Tucson, AZ Technical Specifications Section 13000

SECTION 13000

PREFABRICATED RESTROOM BUILDING

A. General, Specifications and Clarification of Prefabricated Building and Site

Installation

1. This portion of the bid specifications does not follow the CSI standard format as the prefabricated structure in this bid is an offsite constructed “product” and not “typical” general construction.

2. The installation of the product on site is general construction, which must be coordinated between the general contractor and the subcontractor. Specifications for the building foundation/pad shall be provided herein by the specified design/build subcontractor. Due to the responsibility of the specified building subcontractor for architecture, engineering and a five-year warranty, the site pad/foundation must meet the subcontractor’s design so the pad and building can be considered from a single source for warranty purposes. The subcontractor must accept the pad and compactions tests before they take responsibility for the entire system under their warranty.

B. Architectural Design/Engineering and Insurance Responsibility

1. While the City of Tucson has provided bid specifications and a design for the building, the building design/build subcontractor remains legally responsible for architecture, engineering, and all applicable building, safety, health, fire, and accessibility code compliance. Since they hold professional design responsibility to the owner, the building subcontractor must furnish certification that they provide product liability insurance in the amounts required by the general specifications to cover property damage and personal injury. Final drawings shall be stamped by a Arizona engineer.

C. Errors and Omissions Insurance

1. The building design/build subcontractor must also provide an additional Professional Architectural and Engineering Errors and Omissions insurance, in the minimum amount of $2,000,000, to cover claims against the owner or the general contractor for State and Federal ADA handicapped accessibility and other design/engineering code issues. This Errors and Omission Policy must remain in effect for 5 years from the completion and owner acceptance of the project. Product liability insurance (since it does not cover professional design responsibility only) will be insufficient for this bid and will be cause for rejection of the bidder.

D. Insurance for the Building offsite, while in transit, and/or on site until turn over and final owner acceptance

1. The subcontractor may request invoicing for a percentage of building completion in-plant, monthly. Under UCC law, this means that the subcontractor is turning over responsibility for the portion invoiced to the owner, yet the building will not be on jmoscato Image the owner’s property and may not be covered by the owners’ insurance. Therefore, the building subcontractor must provide a separate insurance policy insuring the owner and general contractor as additionally insured for liability, damage and/or vandalism to the building while in the manufacturing facility, while in transit, and/or while in storage at a certified bonded storage facility or at the final project site for up to $200,000 for each prefabricated building module, until the building is final accepted by owner.

E. General Contractor Coordination with Design/Build Subcontractor

1. The specified prefabricated public restroom building requires coordination between the General Contractor (who prepares the site subgrade and delivery access for the prefabricated building) and the prefabricated restroom building subcontractor (who completes the architectural design, engineering, off-site building construction, delivery, and installation on site.) The specified prefabricated restroom building specifications include unique components/systems which are custom to the restroom building subcontractor. Since the restroom subcontractor is responsible for design, additional insurance requirements for errors and omissions is required.

F. General Contractor, General Scope of Work

1. The general contractor for this project is responsible for the site survey and staking the building locations, finished slab survey elevations and marking on site, construction and compaction of the required building pads; access to the site for a large crane and tractor trailers delivering the prefabricated building; providing water, sewer, and power at a point of connection (POC) within 6 feet of the building and at the depth required by the building subcontractor and local code; and the installation of any sidewalks outside the building footprint.

2. The general contractor is responsible for verification to the building subcontractor design/build firm that there are no unanticipated site delivery issues such as overhead wires, trees, tree roots, or existing grade changes and that prevent a clear path of travel between a roadway and the final site exists for a tractor trailer and crane to expedite delivery. The design/build subcontractor requires that the general contractor certify that the required delivery crane must be able to set the building modules within 35’ distance from the center of the building to the center of the crane hoist.

G. Prefabricated Restroom Building, General Scope of Work:

1. The prefabricated restroom building specialist will provide to the general contractor final building design architectural drawings and engineering calculations under the responsibility of a licensed structural engineer, in compliance with all local, state and federal codes. The design/build subcontractor shall construct the building offsite as a permanently relocatable building, transport it to the final required destination, and install the building turnkey, on a general contractor prepared pad per the drawings included in this bid.

H. Licensing:

The supplier must comply with all the State of Arizona requirements.

I. Bid Standard for the Prefabricated Restroom Building

1. The City of Tucson understands that there are several firms who design and build various types of public restroom buildings in varying quality and architectural styles, using similar or different construction methods and materials. For the purpose of this bid, the owner has selected:

Public Restroom Company, 2587 Business Parkway, Minden, NV 89423 and specifies herein that this firm is the standard for architectural design (safety, green design, code compliance, and site-specific compatibility.) PRC is also the standard of building performance and quality for the 50-year building design-life with low-maintenance based upon the longevity of the materials selected. Other firms quoting “or equal” whose criteria and standards do not comply will be rejected.

Contact: Mike Earle, Regional Sales Manager Phone: 888-888-2060 ext. 126 Fax: 888-888-1448 Email: mike@publicrestroomcompany.com Web: www.publicrestroomcompany.com

2. Pre-cast structures are not acceptable.

J. “Or Equal Restroom Design/Build Subcontractors”

The City of Tucson may also allow other firms to become qualified to bid, but any firms so authorized to bid must fully comply with these bid specifications and plans or be subject to post bid rejection.

a) Or Equal applicant shall provide scaled floor plans and elevations, to show general architectural design criteria is met.

b) Or Equal applicant shall provide a written list of each and every deviation from the published bid specifications/plans. Lack of specificity to each deviation from the bid specifications will be cause for rejection.

c) Or Equal applicant shall provide a manufacturer’s certification of concrete test compliance from a national independent testing laboratory. The written report must state the concrete compressive strength and absorption resistance per ASTM standard #C39 and #C642, respectively.

d) Or Equal applicant must provide a list of every building they designed and built over the last 5 years utilizing the same building materials/systems design criteria as published in this bid. Provide date of building bid, date of completion, and most knowledgeable owner contact.

e) Or equal applicant shall provide certification of the special insurance required in this bid.

f) Or Equal applicant shall be responsible for and bear all cost for architecture, plan checks, design and structural engineering and all fees in obtaining approvals and permits from applicable agencies.

3. The City of Tucson or their consultant will be solely responsible for the decision to accept or reject the “or equal” submission.

J. Certificate of Off-site Inspection and Construction Compliance, Provision for

Maintenance Manuals, and Warranty

1. The off-site restroom construction requires that a licensed third-party inspection firm provide the owner and the local building official with certification and compliance for the building with the approved plans and specifications. A certificate of compliance shall be issued by this inspector to the local building official to provide certification that the building meet and or exceed the approved plans and applicable codes.

2. At the project conclusion, the building subcontractor shall furnish two sets of complete maintenance manuals including a trouble shooting guide, location of manufacturers of key components for replacement parts together with final as-built plans, and a 5-year component/20-year structural warranty to the owner or general contractor.

K. Site Scope of Work by General Contractor The general contractor shall prepare the restroom building subgrade to receive the prefabricated building in accordance with the bid subgrade preparation drawings or foundation plan.

1. The building subgrade/footings shall be constructed per the bid drawings.

2. The General Contractor shall provide water point of service at 30” below finished building slabs; sewer at 24” below the finished building slabs; and electrical at 36” below the finished building slabs or other per bid plans.

3. General Contractor shall coordinate with restroom subcontractor to provide full site delivery access for a 70’ tractor-trailer and hydro crane to the final building sites.

4. If the final site access is over existing sidewalks, utilities, or landscaping, the General Contractor shall be responsible for plating and or tree trimming, utility line removal, or other to protect any existing conditions.

5. The hydro crane must be able to locate no greater than 35’ from the center point of the building to the center point of the crane.

6. The utilities shall be furnished per bid site plans at specified points of connection (POC) nominally 6’ from the building lines.

7. General contractor shall furnish and install final grading, landscaping and sidewalks.

M. Connection to Utilities

1. The restroom subcontractor will stub-out: Electrical, Water, and Sewer at the proper POINT OF CONNECTION AND AT THE PROPER ELEVATION BELOW GRADE, for this project. Restroom subcontractor shall provide final hook up of the water from building to POC; sewer hookup to POC; and electrical sleeve from building panel to POC only. Final utility connections shall be by General Contractor or others. General contractor shall flush the water lines thoroughly before making final water connection to the building. Thoroughly flushing the water lines for AT LEAST 30 MINUTES is critical to ensure that the new code required low-flow fixtures and flush valves that are extremely sensitive to particulate matter in the water will not malfunction.

N. Concrete Slab, Required Independent Testing Laboratory Certification:

1. The prefabricated building slabs special concrete technology claims to be water and urine resistant for life due to special additive technology. The building subcontractor must furnish a test certification of compliance from a national independent testing laboratory to support the claim for absorption resistance. The written report must state the concrete compressive strength (minimum of 7,000 PSI) and absorption resistance (not greater than 3%) per ASTM standard #C642 and #C39 respectively. Since this non-absorbency capability is so significant, the design/build subcontractor must provide a general certification of compliance.

O. Prefabricated Restroom Building:

1. The City of Tucson has evaluated several prefabricated restroom building suppliers. This bid requires such building be used in lieu of site-built traditional construction because of the unique built-in advantages guaranteed by the design/build firm. This technology includes many new innovations such as non-absorbent concrete; anti-microbial components to reduce health risks; built in vandal resistance design; lowered maintenance and long-term warranties that reduce owner risk for failure. The specifications below are written around this new technology.

P. Mat Engineered Concrete Building Slab/Foundation:

1. The mat engineered 8” thick slab/foundation shall be engineered and constructed to withstand the transportation weight of the building without cracking and to resist absorption from any liquids deposited on the surface. The concrete slab shall be constructed inside a steel angle curb, reinforced with dual mats (tension and compression,) and poured with a custom concrete formula with special admixtures to create a finished slab that is water resistant.

2. Perimeter Steel Curb: 5/16” 50,000-kip steel 6” X 6” welded continuous angle.

3. Rebar Steel Mat: Two layers of 40,000 tensile steel rebar in varying sizes per engineer’s requirements, including a perimeter structural continuous grade beam design inside the exterior steel angle and at any other location deemed by the engineer of record as required for the use intended. In coastal locations or when required for corrosion resistance rebar shall be epoxy coated or fiberglass to resist permanent corrosion. Rebar mats shall be wire tied to code with a minimum of three turns of the wire and overlaps shall be minimum of 15 diameters for any connection.

4. All slab openings shall be surrounded with two layers of steel collars as required by the engineer of record to stop corner cracking and to reinforce the openings for lifting.

5. 1” thick by 3” minimum length threaded nuts shall be welded to the steel perimeter frame with continuous ¼” fillet welds. Nuts shall be welded to common steel plates per the engineer of records design and attached to the interior steel rebar structural mats.

6. The engineer of record shall provide lifting locations with sufficient reinforcement to allow the safe lifting of the entire designed weight of the structure with dual 1” steel bolts and washers at each lifting location. The number of lifting locations with each location fitted with removable ¾” 8” X 8” 50,000 tensile strength steel angles shall be determined by the engineer of record.

7. The slab shall be poured over a 1” thick steel plate table. The concrete mix design shall not exceed a 3” slump and shall be stinger vibrated for maximum consolidation. All floors shall slope to any floor drains within each room and if no floor drain is present the floor should not slope. The surface shall be a very light broom that should meet a coefficient of friction on the surface of .06. Birdbaths shall be cause for rejection.

8. The steel perimeter angle will remain below the concrete surface by nominal two inches to prevent corrosion. After the site concrete sidewalks are poured, the joint shall be full flow sealed with self-leveling grey urethane caulk to prevent penetration of water into the joint.

9. The building shall be designed for future relocation and shall provide protection for the lifting openings in the mat slab so that the threaded openings will be available for future use if needed.

10. The building system shall be designed for placement on a general contractor site prepared class 2 building subgrade/and or footings as required by code, per the bid drawings, suitable for 1500 pounds soil bearing capacity minimum. Any soils survey (if necessary) shall be by owner or engineer of record.

Q. Exterior & Interior Masonry Block Walls

1. The block walls shall be nominal 8” x 16” CMU. The building corners shall have special corner return block for structural integrity. All CMU shall be custom fabricated with an enlarged interior hole for placement of the grout and vertical rebar. The building corners shall have special corner return block that matches the exterior finish and creates a uniform appearance. The exterior walls shall be 4” thickness per State of Arizona codes or engineering for wind and seismic. The interior walls shall be 4” block to nominally 7’-4” above finished floor and wood-framed with applicable required finishes above for pony walls. A structural steel tubular .188 wall cap beam shall be welded to 5/16” 40,000 kip steel plate embeds, at intervals per the engineer of record, within the masonry wall. Cap beam shall be ZRC primed and painted, color to be selected by owner.

2. The 8” mat engineered concrete slab shall be cured a minimum of 7 days. Holes for vertical dowels shall be drilled into the mat engineered slab avoiding any grade beams or other structural reinforcement. Once the holes are drilled, blow out the remaining material and using two-part structural epoxy, wet set the #3 or #4 vertical rebar (as specified on the engineering calculations into holes drilled to the depth per the engineer of record requirements. Each rebar shall be held vertical to allow equal epoxy support to each dowel during the drying period. Engineering calculations require that rebar shall be installed in each concrete block center void or every block hole. The engineered uplift on each rebar shall be sufficient to restrain any load imposed on the masonry block wall for vertical rebar pull out from the concrete mat engineered slab.

R. Roof System

1. The roof assembly shall be TPO membrane over 1/4" cover board over 5/8” OSB sheathing over 2” x 6” wood rafters at 24” on center. Building rake and fascia shall be wrapped with 16 gauge formed metal, primed, and painted. Color to be selected by owner.

1. The roof design shall exceed compliance with local code at 20 PSF live load and wind load “C”. Roof color shall be determined by owner and selected from the color chart by restroom supplier.

2. The restroom ventilation screens (described in a following section) shall be attached to the gable truss frames with vandal resistant fasteners.

S. Interior Wall and Floor Finish:

1. Interior precision CMU block masonry walls shall be smoothed to a pebble grain finish with 2-4 mil layers of 7-day curing block fillers and painted with two additional 4 mil layers of industrial high solids (white) industrial grade enamel. Walls shall be painted white with industrial high-solids enamel. Utility chase CMU walls shall have block filler and paint.

2. Interior restroom and utility chase room floor shall be covered with a two-part epoxy coating with a base coat, colored flakes, and a final clear coat with non-slip additive (colored flakes chosen by owner from chart by restroom supplier.)

T. Exterior Wall Finish, Masonry and Gable

1. The building exterior shall be a split face CMU block to cap beam. Above cap beam shall be horizontal Allura Cedarmill lap siding. The exterior shall be painted with two layers of industrial high solids, semigloss enamel to a 4-mil thickness.

Color to be selected by Owner.

U. Passive Ventilation System (Restrooms)

1. Shall be woven ¼” X 1” X 1”, 316T, stainless steel wire mesh set in welded steel angles attached to the gable wall with vandal resistant stainless-steel screws, per plans.

V. Doors and Gates

1. The restroom entry doors shall be custom fabricated, 7’ 0”, 14-gauge steel;

reinforced with 14-gauge steel ribs welded at 6” intervals on each face, concealed;

reinforced with a welded plate for door closer mounting.

2. Doors shall be hung on a single continuous, 1 million cycle, aluminum gear hinge with stainless steel vandal resistant screws at nominal 4” on center. The doors shall weigh nominally 176 lbs. each for a 36” X 84” door. Custom fabricated 14-gauge steel door jambs with 4” steel heads shall be welded to the steel cap beam and be solid filled with 3000 psi masonry grout mix. Doors shall be primed and painted with two coats of industrial enamel; color selected by owner.

3. All exterior entry doors shall have a ¼” thick stainless steel “Z-shaped” anti-microbial pull handles and Schlage B600 commercial series dead bolts with large format temporary construction core and Securitron Magnetic Locking SAM System with emergency exit button. The interior push-plate shall be anti-microbial for public safety and hygiene.

4. The door closer shall be “LCN” heavy duty #4210 Series, fastened to a structural reinforced door plate per door manufacturer design.

5. Stainless steel vandal resistant fasteners shall be used on all hardware.

W. Specialties

1. All specialty washroom equipment shall be commercial grade stainless steel, fastened securely to walls with vandal resistant stainless-steel screws to avoid removal by vandals as follows:

2. Toilet paper holders shall be Royce Rolls TP-3, three-roll stainless steel. Toilet paper holders shall be attached to block walls with 4 epoxy-bedded vandal-resistant stainless-steel fasteners per City standards.

3. Stainless steel grab bars to code shall be 1 ¼” minimum exposed fastener vandal resistant design and installed at each accessible water closet.

4. Cast Aluminum ADA compliant signs shall be recessed into block surface flush with masonry exterior. Signs shall have raised pointed Braille tips and shall be blind secured with epoxy adhesive and stainless-steel fasteners.

5. Hand Dryer: Dyson Airblade V, nickel finish, mounted adjacent to lavatories.

6. Stainless steel special needs changing station #KB3000-AHL or equal shall be mounted with identifying signage on the exterior adjacent to the restroom signage.

X. Plumbing:

1. Building shall be fully compliant with current with the following codes:

a) All applicable State of Arizona Building Codes. Latest edition applicable.

b) Arizona Plumbing Code. Latest edition applicable.

2. GENERAL: All components and fabrications shall be designed to reduce life cycle maintenance, be compatible with current maintenance spare parts, and shall be listed in a spare parts/maintenance manual (two copies) delivered in utility chase of building.

3. WATER PIPING: Shall be type L copper soldered per code above grade and type K with silver solder below grade. All water piping shall be designed and constructed with high and low point drain fittings. All piping shall be mounted on Uni-strut wall brackets with neoprene isolators, to code.

4. WATER PRESSURE GAUGE/VALVE COMBO: install two commercial grade industrial water pressure gauges (one on incoming line, one at pressure regulator valve and one after water filter), isolation ball valves, 150 PSI pressure regulator with wye strainer, 10-micron water filter with clear canister, and check valve.

5. PLUMBING FAUCETS, ISOLATION VALVES AND ACTUATORS: All fixtures except those with flush valves shall be isolated with ball valves for each fixture, lever flush valves, and metered push-button lavatory faucets.

6. DWV PIPING: DWV piping shall be concealed behind the wall. DWV piping shall be PVC DWV, solvent welded, for all concealed piping. A cast iron no hub DWV vent pipe with a cast iron roof mounted vandal cap vent shall be required, through the roof.

7. REMOVABLE PIPE TRAPS: Sink drain, and waste traps shall be removable for maintenance. Floor drains shall use a combination waste and vent system. Trap primers for the restroom floor drain shall be located in the utility chase. All surface mounted utility chase piping shall be mounted on Uni-strut with plastic isolators to code. Sink drain traps shall be concealed behind the utility chase walls where maintenance staff can access all plumbing.

8. PLUMBING FIXTURES: Plumbing fixtures shall be 14-gauge, 316 stainless steel custom-manufactured for Public Restroom Company by Acorn/Murdock. Toilets shall be wall hung, rear discharge, with concealed, ADA-compliant with lever flush valves. Toilet seats shall be black solid core plastic with continuous stainless steel concealed self-checking hinges. Lavatories shall have concealed remote traps behind the mechanical wall. Schedule of fixtures:

a. Water Closets: Acorn Penal-Ware, 1675-W-1-HET-FVBO-9-ADA-PFS

b. Water Closet Flush Valve: Zurn ZH6143AV-HET-7L-BG

c. Lavatories: Acorn Penal-ware 1652LRB-1-DMS-03-M-316SS

d. Lavatory Faucet: Chicago MVP 333-E2805

9. FLOOR GRATES: Removable 350 lbs. per square foot pultruded fiberglass non-skid floor grates shall be installed over every opening in the utility chase for OSHA compliance.

10. HOSE BIB: There shall be one Acorn 8120-CP hose bib provided in the utility chase.

11. HI-LO DRINKING FOUNTAIN: Shall be Haws 1109.14, 14-gauge, 304 stainless steel.

12. BOTTLE FILLER: Shall be Haws model 1920, 14 gauge, 304 stainless with drip tray, mounted to drinking fountain.

13. WATER HEATER: Shall be Steibel DHC-E3 (Qty. 1) located in the utility chase.

The water to the lavatories shall be tempered.

Y. Electrical:

1. GENERAL: Electrical system and components shall be commercial grade or better and piping conduits shall be installed on commercial Uni-strut wall hangers. Interior lighting fixtures in public areas shall provide lifetime manufacturer’s warranty.

2. PANEL/WIRING: One 100 amp, 120/240v, single-phase, industrial grade Panel Board, Square "D" QO series with 100 main circuit breaker, shall be mounted in the utility chase in the restroom building. All breakers shall be plug-on type, minimum 10,000 A.I.C. RMS (Sym). Wiring shall be copper wire #12 min in EMT piping with compression fittings.

3. PIPING: All piping shall be surface mounted to the masonry block walls with minimum of 2” fastener penetration. EMT conduit shall be compression type. Main panel shall maintain a 30” X 36” safety code required clear space, floor to 6’ above finished floor.

4. EXTERIOR LIGHTING: Luminaire AEL12-10W-120-4000K-DP-BZH, 10watt LED, dark sky complaint, vandal resistant fixtures shall be installed per plans.

5. INTERIOR LIGHTING: Luminaire SWP1212, 15 watt, LED, vandal resistant high-impact polycarbonate lens fixtures shall be installed in the restrooms per plans (one in each restroom) and shall have integral occupancy sensors. The utility chase room shall have one (1) 4’ single-tube, 15-watt LED fixture, suitable for wet locations, with a single switch at door entry.

6. LIGHTING CONTROL: All interior restroom lighting shall be controlled by built-in fixture occupancy sensors and 2 bypass switches (one for interior lighting and one for exterior lighting), so maintenance staff can check operation during daylight hours. A single photocell, roof mounted, and shall control all exterior lighting.

7. ELECTRICAL OUTLETS: One (1) commercial spec grade duplex outlet shall be located in the utility chase adjacent to the panel.

Z. Shipping Protection

The building, while traveling over roads to the destination may encounter inclement weather or road grime that could require substantial cleaning when it arrives on site.

The building shall be shrink-wrapped before transportation and sufficiently strong to arrive at the owner site intact for exterior finish protection. Materials removed on site shall be disposed of and recycled by restroom building install staff.

AA. Certifications Building shall be certified in compliance with the plan approval by the State of Arizona, Department of Community Affairs, Industrialized Building Program. The building shall be delivered with an applied insignia in compliance with all State regulations. The local building authority shall provide site inspections for the underground mechanical piping and final connections, footings, and access issues outside the restroom footprint.

Restroom building subcontractor shall also furnish 5-year component/20-year structural warranty and maintenance manuals for the building and components.

END OF SECTION