October 22nd Bid Opening (General Competition) Municipal Road Tokiwa-cho Shimohachicho Line Pavement Repair Work

October 22nd Bid Opening (General Competition) Municipal Road Tokiwa-cho Shimohachicho Line Pavement Repair Work 1/8 FY2026 Emergency Natural Disaster Prevention Measures Project Municipal Road Tokiwa-cho Shimohachicho Line Pavement Repair Work Site Explanation Matters and Construction Condition Indication Matters When carrying out the work, the following documents (latest version) shall be used, and for items not described therein, the matters herein and consultation with the supervisor shall apply. "Nagano Prefecture Civil Engineering Work Common Specifications" (Nagano Prefecture Construction Department) "Nagano Prefecture Civil Engineering Work Construction Management Standards" (Nagano Prefecture Construction Department) "Civil Engineering Work Site Handbook" (Nagano Prefecture) "Ministry of Land, Infrastructure, Transport and Tourism Civil Engineering Work Standard Estimation Standards" (Construction Cost Investigation Association, General Incorporated Foundation) "Guidelines for Simplification of Construction Documents" (Nagano Prefecture Construction Department) "Suzaka City Weekly Two Days Off Construction Implementation Guidelines" (Suzaka City Finance Division) §1 Site Explanation Matters 1. Work Content 1) The work name and overview are as described in the tender announcement. 2) Survey and design consignment results data related to the work location, and geological survey report data can be viewed. It can also be lent after the contract. 3) Always strive to reduce costs with awareness and reflect it in the design. 4) ② Client-Designated Weekly Two Days Off Construction Project This work is subject to the client-designated weekly two days off construction project. It shall be carried out in accordance with the "Suzaka City Weekly Two Days Off Construction Implementation Guidelines". However, the Obon holiday and the year-end and New Year holidays shall be excluded from the period during which the weekly two days off initiative is implemented. 2. General Matters 1) Regarding the scope of construction, conduct thorough consultations with the client. 2) Exercise extreme caution regarding existing buried objects during construction. If unsure, confirm with the supervisor before proceeding. 3) Regarding boundary markers such as stakes, pins, and notches, confirm before starting work, and restore them upon completion in consultation with the supervisor. 4) Procedures required for related organizations due to construction work shall be carried out by the contractor at their own responsibility without delay. 5) If any doubt arises regarding the content of this work, report and consult with the supervisor in writing, and seek confirmation from the supervisor. 6) The borrowing of land necessary for the work and related procedures shall be handled by the contractor. In particular, regarding "temporary conversion of agricultural land," coordinate in advance with the Agricultural Policy Division of the Regional Development Bureau, municipalities, agricultural committees, etc. 7) Borrowed land shall be restored to its original condition as a principle, and shall be returned within the borrowing period after confirmation with the owner and manager. Furthermore, the restored areas of borrowed land shall be recorded with photos and survey results before commencement of work, and boundary stakes and structures shall be managed appropriately by setting reference points. Work shall commence after obtaining consent from landowners, etc., with their attendance. 3. Construction Period and Work Schedule Related 2/8 1) The construction period shall be until January 29, 2027. However, construction is expected to be completed within the year. 2) If there are adjacent or competing works, coordinate closely to determine the schedule and consult with the supervisor. 3) Site Constraints and Conditions Due to the following constraints and conditions regarding the construction period and construction methods, adjust the schedule in advance. Constraint Item | Location etc. | Constraint Conditions/Content -----------------|-----------------|---------------------------- Bus Traffic | Surrounding Area | Traffic of Suzaka City Bus (Traffic regulations due to other private businesses not listed above will be adjusted separately) 4. Local Government and Related Organization Consultation Consult with the following related organizations and local residents before commencing work. Related Organization | Consultation Item | Content | Timing -----------------|-----------------|---------|-------- Local District | Work Notification | Work schedule, progress, etc. | Before commencement Adjacent Companies/Residents | Work Notification | Work schedule, progress, etc. | Before commencement NTT, City Gas | Buried Objects | Buried pipes | Before commencement Waterworks and Sewerage Division | Manhole | Buried objects confirmation | Before commencement (Local farmers, districts, waterway managers, public institutions, lifeline operators, JR, etc.) * The results of the consultation shall be recorded in the construction plan or work meeting minutes (format optional) and submitted. 5. Adjacent/Competing Works The following works will be carried out adjacent to or competing with this work. Coordinate closely with the contractors of the related works, report the details to the supervisor, and proceed with the work. Client | Work Name | Construction Period | Affected Area | Remarks 6. Safety Consultation Meeting In the case of adjacent or competing works, establish and join a safety consultation meeting to coordinate work and cooperate for the smooth progress of the entire project. 7. Avoidance of Work During Peak Heat Hours Set the start and end times of work in consultation with the supervisor, depending on the site environment. - For consultations with the police and local authorities regarding early morning/night work, the client will cooperate if necessary, so please coordinate in advance. 4. Construction Related 1) Construction Plan - Based on Common Specifications 1-1-1-6 (Construction Plan), considering design documents and site conditions, create and submit a "Construction Plan" before starting work on site or when the construction method is determined. - Refer to the "Civil Engineering Work Site Handbook" when creating the construction plan. 3/8 - If there are significant changes to the work content (at the time of instruction of changes or at the time of contract amendment), create and submit a "Revised Construction Plan" (a modification of the original construction plan) before commencing the work. 2) Matters Related to Construction System The contractor shall secure an appropriate construction system and manage the entire work, including subcontractors. In particular, considering that enrollment in social insurance is an important matter for securing human resources in the construction industry, confirm the enrollment status of all subcontractors as well as your own company. Documents created regarding the proper securing of the construction system shall be attached to the construction plan, but can also be submitted separately. [Construction System Related Construction Documents, etc.] ① "Construction System Ledger", "Construction System Diagram" ② "Copies of all subcontract agreements" (prepared regardless of the total amount of subcontracted work) * In accordance with the "Guidelines for Simplification of Construction Documents" (applicable from April Reiwa 7), copies of subcontract agreements are submitted as attachments to the Construction System Ledger. ③ Copies of qualifications and insurance certificates of the chief engineer (supervising engineer) * In accordance with the "Guidelines for Simplification of Construction Documents" (applicable from April Reiwa 7), submission is not required if attached to the notification of site manager, etc. Note) Examples of determining subcontractors subject to the creation of the Construction System Ledger Construction System Ledger | Subcontractor Matters | Notification of Subcontracting, Copy of Subcontract Agreement, Construction System Diagram | Presence of Chief (Supervising) Engineer | Traffic Guidance Guard Ledger | Not required to create | Attach copy of agreement and submit | Required for designated routes | Industrial Waste Disposal Contractor (Collection/Disposal) | Not required to create | Attach copy of agreement and submit | Dump Truck Transport (Transport only) | Not required to create | Attach copy of agreement and submit | Tree Felling (Felling only, excluding root removal, stacking, loading) | Not required to create | Attach copy of agreement and submit | Contract completed in one day, small-scale work, miscellaneous labor only, unit price contract | If the contract between contractors is civil engineering work, it is a contract, so create ledger | If construction permit is required or held, engineer placement is required | Crane work, concrete pump placement, etc., performed under daily unit price contracts | Even if it is a daily unit price contract, it falls under a contract, so a ledger is required | If construction permit is required or held, engineer placement is required | Renting heavy machinery such as cranes from a leasing company along with the machine | Create ledger | If construction permit is required or held, engineer placement is required 3) Notifications to Related Organizations, etc. - "Work Notification" to relevant organizations (national, prefectural, and concessionaires, etc.) as necessary. - "Work Notification" to districts related to the work. - "Construction Plan Notification", "Machine Installation/Change Notification" to the Labor Standards Inspection Office. - "Road Use Permit Application" to the Public Security Commission. - "Road Traffic Restriction Request" to the Construction Office. - "Copy of Work Meeting Minutes, etc." with the Fishery Cooperative for work within rivers. 4) Handling of Obstructions to Work (Underground Buried Objects, Aboveground Properties, etc.) If there are items requiring handling of obstructions in the work section below, confirm and consult with the client and property manager regarding the handling method before commencing work. * The work will be carried out in duplicate, so it should be completed by Month Day. Obstruction Item | Manager | Location | Handling Method (Estimate) | Handling Period -----------------|---------|----------|---------------------------|-------------- Manhole | Waterworks and Sewerage Division | Outside | Under consultation | 5) Pay sufficient attention to the impact on existing road structures. 6) Regarding the burial depth and location, conduct trial excavation work as the contractor's responsibility using the common temporary work cost (preparation cost) and consult on the results. Trial excavation surveys conducted due to the client's instructions or convenience will be subject to design changes. Furthermore, the excavation width shall be based on the standard excavation cross-section in the practical handbook, and only if there are problems with the soil quality based on trial excavation surveys will the excavation cross-section be subject to change. 7) Create survey results and expected finished form through pre-construction surveys, and submit and obtain approval from the supervisor before commencing construction. 8) Regarding materials to be used, if using materials other than those covered by the blanket approval request, submit an approval request to the supervisor and use them after obtaining approval. (Blanket approval request can be confirmed on the Suzaka City HP within the Road and River Division) 9) Regarding excess soil, construct in accordance with the design and provide the quantity basis for the excess soil amount. 10) Compact the backfill thoroughly to prevent harmful settlement in the future. 11) For this work, one-lane alternating traffic control (daytime construction) will be implemented within the site work period and for the minimum necessary duration. Work hours are assumed to be from 8:00 to 17:00. 5. Surrounding Environment Preservation Related 1) Construction machinery and equipment shall primarily be emission gas compliant construction machinery. Also, when performing work subject to the Noise Regulation Law and Vibration Regulation Law, submit a "Specific Construction Work Notification" to the Environmental Living Division. Attach photos of the machinery used to the completion documents. 2) During construction, comply with relevant laws and ordinances, and take measures to prevent dust, scattering of soil, and other disturbances to surrounding residents and third parties. When transporting generated soil from the site, ensure that attached soil on transport vehicles is reliably removed before traveling on public roads. If public roads are damaged or soiled due to this work, the contractor shall be responsible for the repair. 3) Prevention of Overloading - Implement measures in accordance with the overloading prevention measures stipulated by Nagano Prefecture. - This also applies to various materials purchased from suppliers (ready-mixed concrete, asphalt, aggregates, etc.) and subcontractors. - Describe the measures in detail in the construction method of the "Construction Plan." - If an overloaded vehicle is identified at the construction site, promptly make improvements and report the details to the client. - Also, confirm that excess soil and demolition debris are loaded appropriately, organize and store inspection records and photos in the completion documents, and present them when requested by the supervisor, etc. Present them at the completion inspection and attach them to the completion documents. 6. Safety Measures 1) At the construction site, in accordance with Common Specifications 1-1-1-39, strive to prevent labor accidents and public disasters, and conduct regular safety education, training, and drills for all workers. 2) Safety education, training, and drills shall be conducted at least once a month during the construction period. The results shall be recorded, organized with construction photos, stored, and presented when requested by the supervisor, etc. 5/8 3) Consider safety measures for third parties during nighttime and holidays. (Attach photos to completion documents) 4) Pay attention to the entrances and exits of private properties. 5) The contractor shall consult and coordinate with adjacent work contractors when safety management overlaps with adjacent works. 6) Pay attention to pedestrians and passing vehicles to ensure traffic safety. 7) Traffic guidance guards will generally not be subject to design changes, except when traffic volume significantly increases or decreases due to adjacent works, upon request from the road administrator or police, or when site conditions change, or when a different construction method is adopted compared to the initially designed method. 8) If the contractor entrusts traffic guidance services to another party, the entrusted party must be certified as a security business by the Public Security Commission in accordance with Article 4 of the Security Services Act. 9) If there is a risk of vehicles entering the roadway, install guardrails, traffic delineators, rotating lights, etc., and pay special attention to safety measures at night. 10) Regarding traffic control, plan the regulated areas so that they do not become dead ends, and minimize the regulation period. Also, understand the timing of events and implement regulation methods in accordance with the local community's wishes. 11) Overhead Facilities such as Overhead Lines Before construction at general construction sites, conduct on-site surveys to identify the type, location (place, height, etc.), and manager of overhead facilities such as overhead lines. If there is a possibility of contact or cutting due to the boom of construction machinery, etc., take the following safety measures as necessary. The implementation details shall be described in the construction plan. ① Installation of protective covers over overhead lines and facilities. ② Installation of height restriction measures at construction site entrances, etc. ③ Installation of signs indicating the location of overhead lines and facilities. ④ Setting of exclusion zones for rotation/access of construction machinery booms, etc. Request the installation of item ① above from the overhead line manager. If there are costs involved, request confirmation of the site conditions, etc., from the supervisor in advance. If deemed necessary as a result of the confirmation, it will be subject to design changes. 12) In the case of concerns about heatstroke due to work in harsh environments such as hot days in summer (under the blazing sun or in hot and humid places), clearly state "System Establishment," "Procedure Creation," and "Notification to Related Parties" in the construction plan and implement heatstroke prevention measures. Furthermore, adjustments to site management costs that contribute to heatstroke countermeasures will be subject to design changes through consultation. (Reference) Implementation of adjustments to site management costs that contribute to heatstroke countermeasures http://www.pref.nagano.lg.jp/gijukan/documents.html 7. Regarding Generated Soil, Waste, and Recycled Resources Based on the promotion of the use of recycled resources and the proper disposal of construction by-products stipulated in Article 3 of Common Specifications 1-1-1-24, strive for proper disposal of construction by-products and utilization of recycled resources. 1) Regarding the transport and disposal of construction by-products ① The disposal of generated soil and industrial waste, etc., in this work assumes the most economical disposal facilities based on the sum of disposal costs and transportation costs for each facility (disposal site), and disposal costs and transportation costs are estimated as follows. Type | Disposal Site | Transport Distance (Km) | Remarks -----|---------------|-------------------------|-------- Excess Soil | | | Disposal Cost: Yen/m3 Asphalt Shell | Nakamura Shokai Co., Ltd. | Within 3.5km | Disposal Cost: 1388 Yen/t Concrete Shell (Unreinforced) | | | Disposal Cost: Yen/m3 Concrete Shell (Reinforced) | | | Disposal Cost: Yen/m3 * The above destinations shall not be changed in principle. If the destination changes due to unavoidable circumstances not anticipated at the time of tendering, it will be subject to design changes. ② When entrusting the transport and disposal of construction by-products to industrial waste transport and disposal contractors, conclude a written consignment contract in accordance with the consignment standards based on the Waste Management and Public Cleansing Act. ③ Confirm the "Permit" for businesses engaged in waste transport and disposal, and attach a "copy" thereof to the consignment contract.