Nago City Water Distribution Pipeline Laying Work (Reiwa 8 - Part 5) Ordering Documents

Nago City Water Distribution Pipeline Laying Work (Reiwa 8 - Part 5) Ordering Documents 8: : : 8 (2026) September Day - 8 (2026) October 30 (Application of Common Specifications) This work shall be carried out in accordance with the "Standard Specifications for Waterworks Construction: 2010 Edition" by the Japan Water Works Association and the Common Specifications for Civil Engineering Works (established by Okinawa Prefecture: latest edition). (Special and Additional Provisions to Common Specifications) Special and additional provisions to the Common Specifications are as follows: (Application of Construction Management Standards) This work shall be carried out in accordance with the Nago City Waterworks Construction Management Standards and the "Civil Engineering Work Construction Management Standards: Latest Edition" by the Okinawa Prefectural Government, Department of Civil Engineering and Construction. 1 1 1 1 2 1 2 - 1 2 3 4 5 6 - 1 6 - 2 3 P Measures for improving the durability of concrete shall be in accordance with the attached special specifications. SPECIAL SPECIFICATIONS SPECIAL SPECIFICATIONS (A) Nago City This work shall be carried out in accordance with these special specifications and drawings. Matters not described in these special specifications shall be in accordance with the Standard Specifications for Waterworks Construction (Japan Water Works Association), Civil Engineering Work Construction Management Standards (established by Okinawa Prefecture), and other reference documents. Construction shall prioritize these special specifications and drawings, followed by the common specifications, construction management standards, and other reference documents. The contractor shall consult with the supervisor promptly if there are any unclear points or doubts in the design documents before and during construction. Any damages incurred due to failure to report to the supervisor shall be borne entirely by the contractor. When transporting construction materials by dump truck, etc., for this work, ensure no overloading and maintain sufficient traffic safety management. Materials used in this work that are produced or manufactured within the prefecture and are appropriate in terms of specifications, quality, and price shall be prioritized for use. The contractor shall submit a Recycled Resource Utilization Plan and a Recycled Resource Promotion Plan to the supervisor in advance before commencing work. 1 Construction Vehicle Usage in Civil Engineering Works Priority Use of Prefectural Products Construction Recycling Promotion Plan Also, the implementation status shall be submitted to the supervisor upon completion of the work. Ready-Mixed Concrete Ready-mixed concrete from a JIS-certified plant shall be used. The water-cement ratio of concrete used for concrete structures shall be 55% or less for reinforced concrete and 60% or less for unreinforced concrete. If the water-cement ratio cannot be met, the strength standard shall be increased to meet the water-cement ratio condition. Article 3 Chapter Section Article Heading SPECIAL AND ADDITIONAL SPECIFICATIONS CLAUSE Construction Period Reiwa Year Reiwa Article 1 Article 2 APPLICATION This Special Specification applies to the above construction. GENERAL PROVISIONS Reiwa 8 (2026) Work Name: Nago City Water Distribution Pipeline Laying Work (Reiwa 8 - Part 5) Work Location: Nago City, Yambaru area 7 8 9 - 1 Qualification Requirements for Chief Engineer or Supervising Engineer Persons listed in either a or b below a b 9 - 2 9 - 3 9 - 4 9 - 5 10 11 - 1 11 - 2 11 - 3 - Yuikuru Material Usage Report - Yuikuru Material Shipment Volume Certificate P. 2 Regarding Yuikuru Materials The contractor shall transport construction waste generated from the work to Yuikuru-certified facilities or facilities that ship to Yuikuru material manufacturers as raw materials. However, this does not apply if such facilities are not available on the island. The contractor shall submit the following documents and electronic data to the supervisor as attachments to the completion notification: Chapter Section Article Heading SPECIAL AND ADDITIONAL SPECIFICATIONS CLAUSE Creation and Registration of Construction Cart The contractor shall, for works with a contract price of 5 million yen or more, create "Request for Confirmation of Registration" based on the Construction Project Information Service System (CORINS) and submit it to the supervisor via email after obtaining the supervisor's confirmation. For awards, within 10 days after the contract (excluding Saturdays, Sundays, and holidays); for changes, within 10 days from the date of change (excluding Saturdays, Sundays, and holidays); for completion, within 10 days after completion (excluding Saturdays, Sundays, and holidays); for corrections, apply to the registration organization as appropriate. The scope of registration shall include all works with a contract price of 5 million yen or more (total contract amount for unit price contracts), and registration shall be made at the time of award, change, completion, and correction. If the period between the time of change and the completion of the work is less than 10 days (excluding Saturdays, Sundays, and holidays), the registration application at the time of change may be omitted. Also, when correcting or deleting after the completion of this work, the same procedure shall be followed: obtain prompt confirmation from the supervisor and then apply for registration with the registration organization. Chapter Section Article Heading SPECIAL AND ADDITIONAL SPECIFICATIONS CLAUSE SPECIAL SPECIFICATIONS (B) Nago City Prohibition of Illegal Excavation of Ryukyu Limestone If Ryukyu Limestone (excluding Paleozoic limestone) is used as construction material, a certificate of origin (original) shall be submitted. The contractor shall also attach a copy of the "Permit for Operation Plan of Mining Rights" to the request for approval of materials to be used. Chief Engineer or Supervising Engineer The contractor shall exclusively assign a chief engineer or supervising engineer for this work. Those who have passed the technical examination in one of the following categories: Class 1 or Class 2 Civil Engineering Construction Management. Those who have passed the main examination under the Professional Engineer Act (Law No. 124 of 1957) in the engineering fields of Civil Engineering or Water and Sewerage. If subcontracting work exceeding 50 million yen, a full-time supervising engineer shall be assigned in place of the chief engineer. The aforementioned supervising engineer must hold a "Supervising Engineer Qualification Certificate" (hereinafter referred to as "Qualification Certificate") for designated construction industries (must have a direct and continuous employment relationship). The aforementioned supervising engineer shall always carry their qualification certificate and present it upon request by the ordering party. The site representative and chief engineer shall prove their long-term employment relationship with a health insurance certificate or resident tax special collection notice and obtain the supervisor's approval. Disposal of Excess Soil and Industrial Waste The contractor shall select the disposal site for excess soil and obtain the supervisor's approval. The disposal site must be a location where secondary disasters such as soil runoff into the sea will not occur. Thorough consideration shall be given to whether there are water sources downstream or soil runoff into paddy fields, etc. If construction waste such as concrete or asphalt fragments is included, it shall be disposed of at an industrial waste disposal site permitted by the governor. Collection, transportation, and disposal shall be in accordance with the "Waste Management and Public Cleansing Act." Recycled materials used in this work shall be "Yuikuru materials" in principle. If Yuikuru materials cannot be used due to lack of stock, etc., consult with the supervisor. 12 - 1 National Highways ① National Route 58 ② National Route 329 13 - 1 13 - 2 13 - 3 14 P * Colors: Greetings such as "We apologize for the inconvenience" and construction names such as "○○ Construction" shall be in white letters on a blue background. Construction content and period shall be in blue letters. Other text and lines shall be black, and the background shall be white. * Margins are 2cm, border line thickness is 1cm, and dividing line thickness is 0.5cm. * Construction period and time shall be displayed as the actual planned completion date and construction time, not limited to the contract period. * The surface material of the signboard shall be "high-intensity reflective" or equivalent or better in principle. If not used, consult with the ordering party. * Time zone shall be displayed in 24-hour format. * If there are any changes to the content, revise promptly. SPECIAL SPECIFICATIONS (B) 3 Chapter Section Article Heading SPECIAL AND ADDITIONAL SPECIFICATIONS CLAUSE Installation of Construction Signage During construction, comply strictly with the Okinawa Prefectural Red Soil Runoff Prevention Ordinance, the Water Pollution Control Act, and other environmental protection ordinances. Regarding countermeasures, thoroughly investigate the site conditions before commencement, specifically consider the work types and periods requiring countermeasures, and obtain the supervisor's approval. Special Provisions Regarding Red Soil Runoff Prevention Measures, etc. Before commencing work requiring the above countermeasures, obtain confirmation from the supervisor regarding the countermeasures (installation of pollution prevention barriers, construction of embankments, etc.). A "Site Inspection Checklist" shall be created and submitted to the supervisor during rainfall. Facilities shall also be inspected and repaired. When discharging turbid water, confirm that the turbidity concentration is 200ppm or less using a turbidimeter, and then discharge by pumping. Nago City Chapter Section Article Heading SPECIAL AND ADDITIONAL SPECIFICATIONS CLAUSE Traffic Controller Assignment on Major National Highways Regarding traffic control guard services provided by security companies on the following national highways certified by the Okinawa Prefectural Public Safety Commission, a "Certified Security Guard with Grade 1 or 2 Qualification for Traffic Control Guard Services" shall be assigned for each location where said security services are provided. In the event of unforeseen circumstances causing red soil runoff, the contractor shall take immediate measures and report to the supervisor. When carrying out construction, necessary signs shall be installed, and a display board with the content shown in the example shall be installed at the beginning and end of the construction section. ← → Until March 18, Reiwa 9 (2027) ↑ We are carrying out Nago City waterworks construction. ↓ Phone: 0980-52-5145 Contractor: XX XX Co., Ltd. Phone: XXXX-XX-XXXX We apologize for the inconvenience. Daily Construction Hours: AM00:00 - PM00:00 140cm Nago City Water Distribution Pipeline Laying Work (Reiwa 8 - Part 5) Ordering Party: Mayor of Nago, Takeyo Toguchi Supervising Department: Nago City Hall, Environmental Water Department, Public Works Division ← 114cm → 110cm 15 16 ...... 2 copies ...... 3 copies ...... 1 set ...... 1 set 17 P Completion Documents (4) All construction document data (electronic data) Upon completion of the work, the contractor shall deliver the following items with the supervisor's approval. 1. This work is eligible for the correction of site management costs contributing to heatstroke countermeasures. The correction of site management costs will be calculated based on the maximum daily temperature during the construction period and added to the site management cost rate. The correction will be made through a change order. Correction Value (%) = Number of Midsummer Days × Correction Factor * * Correction Factor: 1.2 2. Definitions (1) Midsummer Day: A day when the maximum temperature is 30 degrees Celsius or higher. However, for night work, it refers to a day when the maximum temperature during working hours is 30 degrees Celsius or higher. (2) Construction Period: The period from the start to the end of construction, including preparation, actual working days required for construction, non-working days, and cleanup period. (3) Midsummer Day Rate: The rate calculated by the following formula. Midsummer Day Rate = Number of Midsummer Days during the Construction Period / Construction Period * Round to two decimal places after rounding off the third decimal place. 3. Before commencing work, the method for measuring temperature during the construction period and the reporting method for measurement results shall be described in the construction plan and submitted. The standard method for measuring temperature shall be to use the temperature from the nearest Japan Meteorological Agency ground observation station or the Heat Stroke Index (WBGT) published by the Ministry of the Environment. If using WBGT, days with WBGT of 25°C or higher shall be considered midsummer days. However, if this is difficult, measurements obtained by a method conforming to the Japan Meteorological Agency's temperature measurement method at one representative location of the construction site may be used. The cost of measurement shall be borne by the contractor. 4. Measurement results shall be submitted based on the construction plan. SPECIAL AND ADDITIONAL SPECIFICATIONS 4 Chapter Section Article Heading SPECIAL AND ADDITIONAL SPECIFICATIONS CLAUSE SPECIAL SPECIFICATIONS (B) Purpose of the Property and Obligation for Investigation/Reporting during the Warranty Period Within the warranty period stipulated in the construction contract, the contractor shall conduct investigations of the property several times a year and submit a final report to the responsible department and section one month before the expiration of the period. If any loss or damage to the property is confirmed, the cause shall be investigated and discussed with the presence of the responsible staff, and if it is determined to be due to construction technology, repairs shall be made at the contractor's expense within the specified period. (1) As-built drawings (Kannon-bound) A1 size ... 2 copies (2) " " " A3 size ... 3 copies (3) Construction inspection documents (deliverables) Clause Chapter Section 1 1 - 1 1 - 2 1 - 3 1 - 4 1 - 5 2 1 2 2 - 1 2 - 2 2 - 3 2 - 4 2 - 5 2 - 6 2 - 7 2 - 8 2 - 9 2 1 3 3 - 1 3 - 2 3 - 3 3 - 4 P Before starting work, thoroughly investigate the buried pipeline routes, consult sufficiently with relevant government agencies and companies, create documents, and obtain the ordering party's approval. If necessary, trial excavation may be instructed with the attendance of relevant parties before excavation. The cost for this shall be borne by the contractor. After confirming the diameter, depth, etc., of existing buried objects, commence the main work after obtaining the ordering party's approval. When storing industrial waste, industrial waste storage standards must be followed. The prime contractor must notify the health center in advance if they intend to store industrial waste outside the site. However, this applies when the storage area is 300㎡ or more. Pipe Work Pavement Cutting The length of excavation shall be consistent with the pipeline laying schedule, and shall be within the scope that allows for pipeline laying and backfilling on the same day. Excess soil and obstructions to traffic must be cleared on the same day. Pipe Work Road Crossing When excavating across a road, after completing excavation on one side and taking measures to ensure no obstruction to traffic, excavate the other side. After excavation is complete, the excavation dimensions and other aspects shall be inspected by the ordering party in principle. Pavement cutting shall be performed using a cutter or similar tool to ensure no obstruction to road surface restoration. If other pavement is damaged due to improper construction, it shall be restored at the contractor's responsibility. Turbid water (sludge) generated shall be properly treated in accordance with the "Handling Standards for Turbid Water Generated from Asphalt Pavement Cutting (Notice) (Okinawa Prefectural Government, Department of Civil Engineering and Construction Notice: Latest Edition)." Collect turbid water using a cutter machine with turbid water recovery function, an industrial vacuum cleaner, or by absorbing with a sponge and transferring to a bucket, etc., without discharging directly outside the site. Turbid Water Collection Method Excavated soil to be used for backfilling shall not be piled up on both sides of the excavation on the road, but shall be temporarily transported and stored in a location approved by the ordering party. However, if the location does not interfere with construction or traffic, the excavated soil may be piled up on both sides or one side of the road with the ordering party's approval, but it must not be scattered.