Tenders/Oibori Waterway Improvement Construction
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Oibori Waterway Improvement Construction

Auto-translated from Japanese
Original title: 大別所水路改修工事
山梨県甲州市
Published: Sep 7, 2026
Updated: Sep 11, 2026
Source: jp_kkj

About This Opportunity

This is a works contract in the agriculture and food security, water and sanitation and architecture and engineering sectors. Located in Japan, Asia, this opportunity is open to firms and consortiums.

Published through 官公需 (kkj.go.jp), a national government procurement portal. Public procurement tenders follow the country's national bidding regulations and may have specific eligibility and documentation requirements for civil works in the agriculture and food security sector. Works contracts of this nature generally require demonstrated experience in similar infrastructure projects, adequate equipment and technical personnel, and financial capacity including bank guarantees. Interested parties should review the full documentation on the original source before submitting their proposal.

Description

Auto-translated from Japanese
Koshu City Public Notice No. 58 Bid Announcement Post-qualification conditional general competitive bidding will be conducted, and notice is hereby given in accordance with the provisions of Article 167-6, Paragraph 1 of the Local Autonomy Act Enforcement Regulations. September 7, Reiwa 8, Koshu City Mayor Mikio Suzuki 1. Matters for Bidding Bid Number: 136 Contract Number: 5081-96 Project Name: Specialty Agricultural Product Production Support and Improvement Project Construction Name: Oibori Waterway Improvement Construction Construction Location: Nono-cho, Enzan Nishino, Koshu City Estimated Construction Period: From the business day following the contract signing to February 26, Reiwa 9 Construction Outline: Construction length L=226.7m Precast open channel work: U-shaped flume [400*400] L=115m In-situ open channel work: Bottom lining concrete [Type 2] L=42m Stone masonry work: L=51m2 Estimated Price: 13,600,000 yen (excluding tax) Two-day weekend system: Applicable Project 2. Matters Concerning Qualifications Required for Bid Participation In addition to the "Koshu City Post-qualification Conditional General Competitive Bidding Common Explanation Document" (hereinafter referred to as "Common Explanation Document"), bidders must meet all of the following requirements. Bid Participation Form: Sole Proprietor Yes Qualification Register Registration Category: Construction Works Qualified Person Register Registration Business Type: General Civil Engineering Works Regional Requirement: Must have its head office/main office in Koshu City. Construction Industry Permit: Must have obtained a construction industry permit as stipulated by the Construction Industry Act (Showa 24, Act No. 100) for "General Civil Engineering Works". Management Items, etc.: Must have undergone management item review on or after the end of the business year immediately preceding 1 year and 7 months before the contract signing date, and be able to submit the relevant Management Item Review Result Notification (hereinafter referred to as "Latest Management Item Review Result Notification"). The "General Evaluation Score (P)" for "General Civil Engineering" in the latest Management Item Review Result Notification must be 650 points or higher. Construction Performance, etc.: (1) Construction performance for the same type of work (General Civil Engineering) must be for work completed and delivered on or after April 1, Reiwa 28. (2) Must be able to assign a qualified technician under the Construction Industry Act as a chief technician to the target project. Furthermore, changes to the assigned technician will not be permitted except for reasons recognized by Koshu City, such as illness, death, or retirement. 3. Matters Concerning Business Content Explanation (1) Matters Concerning Browsing of Design Documents, etc. Browsing Method: Downloadable electronically from the Koshu City website. Browsing Period: From 9:00 AM on Monday, September 7, Reiwa 8 to 5:00 PM on Tuesday, October 6, Reiwa 8. (2) Matters Concerning Question and Answer Period for Questions: Deadline for Questions: 5:00 PM on Thursday, September 24, Reiwa 8. Deadline for Answers: 5:00 PM on Tuesday, October 6, Reiwa 8. 4. Matters Concerning Bid Participation Application Period: From 9:00 AM to 5:00 PM, Friday, September 11, Reiwa 8 to Wednesday, September 16, Reiwa 8. *Excluding closing days. 5. Bid Form and Submission Documents, etc. Submission Period: From 9:00 AM to 5:00 PM, Thursday, October 1, Reiwa 8 to Tuesday, October 6, Reiwa 8. *Excluding closing days. Bidding Method: Mail-in bid item. Other: Must arrive by the final day (in-person submission is also acceptable). 6. Bid Opening Date and Time, and Location Date and Time: 9:00 AM on Wednesday, October 7, Reiwa 8. Location: Koshu City Hall, 2nd Floor, Second Conference Room. Successful Bidder Determination Date (Scheduled): Tuesday, October 13, Reiwa 8. 7. Other Bid Explanation Document Distribution: Announced along with the public notice. Bid Bond: Exempt. Contract Security Deposit: 10/100 of the contract amount. Advance Payment: Yes Partial Payment: Yes Minimum Restriction Price: Yes Contract Creation: Required. Other: Must not have any arrears in Yamanashi Prefectural tax, city tax, consumption tax, or local consumption tax. *Basically, documents required for general competitive bidding are posted on the "Bidding and Contract Information" page of the Koshu City website, and various forms can be downloaded from the Koshu City website. 8. Contact Information: Postal Code 404-8501, 1085-1 Enzan Onso, Koshu City. Koshu City Hall, Finance Division, Contract Section. 0553-32-5060 (Direct) 0553-32-2122 (FAX). Appendix 1: Bid Explanation Document Regarding bids based on the bid announcement for Koshu City Public Notice No. 58, the following shall apply in addition to the provisions of relevant laws and the Common Explanation Document. 1. Announcement Date: September 7, Reiwa 8. 2. Target Construction (1) Project Name: Oibori Waterway Improvement Construction (2) Construction Location: Nono-cho, Enzan Nishino, Koshu City (3) Construction Period: From the business day following the contract signing to February 26, Reiwa 9. (4) Construction Outline: Construction length L=226.7m Precast open channel work: U-shaped flume [400*400] L=115m In-situ open channel work: Bottom lining concrete [Type 2] L=42m Stone masonry work: L=51m2 (5) Estimated Price: 13,600,000 yen (excluding tax). (6) Two-day weekend system: Applicable Project. 3. Bid Participation Application: To participate in the bid, submit the "Koshu City Post-qualification Conditional General Competitive Bidding Participation Application" (hereinafter referred to as "Bid Participation Application") by the application deadline indicated in the public notice, after confirming the submission method in Section 4 of the Common Explanation Document. 4. Matters Concerning Business Content Explanation (1) Matters Concerning Browsing of Design Documents, etc.: To browse design documents, download them from the Koshu City website during the browsing period indicated in the bid announcement. (2) Period for Questions and Answers Regarding Design Documents: The period is as indicated in the public notice. Answers to questions will be faxed to all bidders by the date and time indicated in the public notice, and will also be available for viewing at the Finance Division, Contract Section. Browsing Period: Monday, September 7, Reiwa 8 to Tuesday, October 6, Reiwa 8 (9:00 AM to 5:00 PM, excluding closing days during this period). Browsing Location: Koshu City Hall, 2nd Floor, Finance Division, Contract Section. 5. Submission of Bid Participation Qualification Confirmation Application, etc. (1 copy each): Form No. 2: Post-qualification Conditional General Competitive Bidding Participation Qualification Confirmation Application. Form No. 3: Post-qualification Conditional General Competitive Bidding Participation Qualification Requirements Summary Table. Form No. 4: Same Type of Work Construction Performance Record - Copy of Construction Contract or, if registered in Collins, a copy of the registration details, etc. *For projects ordered by Koshu City, the attachment of the above documents (copy of registration details, etc.) is optional. Form No. 5: Assigned Technician Record - Copy of technician's license, qualification certificate, etc. Other Attached Documents: - Copy of Construction Industry Permit. - Copy of the latest "Management Item Review Result Notification". - Construction Cost Breakdown and Estimate. 6. Bidding Method, etc.: The bid form, along with the documents specified in Section 5 above, must be mailed (must arrive by the deadline) or submitted in person by the bid date and time specified in the public notice. 7. Other: (1) No briefing sessions or site explanation meetings will be held for the creation of application forms, etc. (2) Contractors who submit false information in their application or bid documents, whose required documents are found to be incomplete, who do not meet the bid participation qualifications, or who no longer meet the bid participation qualification requirements will have their bids for the relevant project invalidated. Furthermore, if false information is found, the contractor may be subject to a suspension of designation in accordance with the "Koshu City Construction Contract Suspension Measures Guidelines". (3) Prohibition of Collusion and Measures Against Collusion: Persons intending to participate in the bid must not engage in collusion. Furthermore, if collusion is discovered after the contract is awarded, the contract will be terminated based on the contract terms. (4) The bid date and time may be postponed due to disasters or other circumstances. Appendix 2: Guidelines for Creating Bid Participation Qualification Confirmation Documents 1. Construction Outline (1) Project Name: Oibori Waterway Improvement Construction (2) Construction Location: Nono-cho, Enzan Nishino, Koshu City 2. Composition of Bid Participation Qualification Confirmation Documents: To prove the performance requirements listed in Section 2 of the Bid Announcement, "Matters Concerning Qualifications Required for Bid Participation", prepare and submit the following documents. (1) Same Type of Work Construction Performance Record (Form No. 4) (2) Assigned Technician Record (Form No. 5) (Note) The Same Type of Work Construction Performance Record is based on individual performance, but performance in joint ventures is also recognized. The same applies to the Assigned Technician Record. 3. Guidelines for Creating Bid Participation Qualification Confirmation Documents: (1) Performance to be entered in the Same Type of Work Construction Performance Record (Form No. 4): a. Definition of Same Type of Work: Construction performance in general civil engineering works. However, this is limited to construction projects with a contract amount of 7 million yen or more per project. The scope of general civil engineering works includes road construction or river/sabo construction as shown below. Road Construction: Road improvement, forest road, agricultural road, sidewalk installation, concrete structure, road accessory, bridge, tunnel construction, etc. River/Sabo Construction: Revetment, sill (drop structure, weir), dam (including headworks), sabo dam, landslide control, steep slope collapse prevention, erosion control dam, channel work, hillside work, irrigation and drainage ditch, field irrigation, sewage work, etc. b. Enter the construction performance of the same type of work as shown in a., from projects undertaken as the primary contractor and completed and delivered on or after April 1, Reiwa 28. c. The ordering organizations to be listed as construction performance are limited to those listed in the "List of Ordering Organizations" below. The priority order of ordering organizations to be listed is Koshu City, Yamanashi Prefecture, national organizations, prefectures, independent administrative agencies, etc., and their performance should be listed. If none of these are available, list performance from municipalities, public enterprises, project corporations, private entities, etc. d. The content should include technical characteristics such as project name, ordering organization name, construction location, as well as construction specifications (structural type, dimensions, foundation type, main materials, design conditions, etc.). e. For the content of the Same Type of Work Construction Performance Record, refer to the example in the Same Type of Work Construction Performance Record (Form No. 4). (2) Construction Performance as a Member of a Construction Joint Venture: If there is no individual performance, construction performance as a member of a civil engineering joint venture for projects completed on or after April 1, Reiwa 28 will also be recognized as performance and should be listed. However, this is limited to performance with an investment ratio of 30% or more. (3) Attach copies of contract documents, etc., to prove past construction performance: a. As supporting documents for construction performance of the same type of work, attach a copy of the contract for the relevant project, or if registered in Collins, a copy of the registration details, etc. *For projects ordered by Koshu City, the attachment of the above documents is optional. b. If a copy of the contract document proving the contract performance is not attached, it will not be recognized as performance or experience. (4) Number of copies of bid participation qualification confirmation documents to be submitted: Submit 1 copy of each form. *"List of Ordering Organizations" Organization Name | Content Koshu City | | Yamanashi Prefecture | | National Organizations | Ministry of Land, Infrastructure, Transport and Tourism, etc. | Prefectures | Prefectures other than Yamanashi (including designated cities) | Independent Administrative Agencies | Municipal Public Enterprises, etc. (including local corporations) | Project Corporations, etc. | Japan Sewerage Works Association, other project corporations, etc. | Private Sector, etc. | Expressway companies, power, gas, telephone companies, JR, private railways, oil stockpiling companies.

Data provenance

This notice is sourced from 官公需 (kkj.go.jp) and was originally published on September 7, 2026. Last refreshed 5 days ago. Original language: Japanese. BidsFactory mirrors official procurement notices and links back to the source for full legal text.

About 山梨県甲州市

山梨県甲州市 has issued 24 procurement notices on BidsFactory, including 6 currently open and 0 awarded contracts. Activity concentrates in Architecture & Engineering Services, Construction & Civil Works, and Water & Sanitation. All notices are published for Japan. Notices are distributed via 官公需 (kkj.go.jp). Most recent publication: September 7, 2026.

Frequently asked questions about this tender

What type of contract is this?

This is a Works contract in the Agriculture & Food Security sector. The classification helps bidders match the opportunity to their qualifications and registered scope of supply.

Where will the contract be performed?

The contract is for delivery in Japan. Foreign bidders should review local registration, taxation, and any in-country presence requirements before submitting.

How can I submit a bid?

Visit 官公需 (kkj.go.jp) to access the full notice, required documents, and submission instructions provided by the contracting authority.

Who is the contracting authority?

This notice was issued by 山梨県甲州市 in Japan. The authority is responsible for evaluating bids, awarding the contract, and managing performance.

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Key Details

Contract Type
Works
Eligibility
Firms / Consortiums
Language
Japanese

Source

jp_kkj
jp_kkj
Official Source

Contracting Authority

山梨県甲州市
🇯🇵Japan

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