[Announcement] Tajihigawa River Improvement Compensation Work (Nukanobashi Temporary Structure 1)

[Announcement] Tajihigawa River Improvement Compensation Work (Nukanobashi Temporary Structure 1) ANNOUNCEMENT We hereby announce that an open competitive bid will be held as follows, in accordance with the provisions of Article 87 of the Aki Takata City Financial Regulations. Bidders must comply with the individual items 1 to 5 and the attached "Common Items for Open Competitive Bidding (Post-Qualification Review Type) Announcement" (hereinafter referred to as "Common Items"). Furthermore, this is an electronic bidding case using the Aki Takata City Electronic Bidding System (hereinafter referred to as "Electronic Bidding System"), and bidding procedures must be carried out in accordance with the Aki Takata City Electronic Bidding Implementation Guidelines (hereinafter referred to as "Electronic Guidelines") (except in cases where the Electronic Guidelines specifically provide for exceptions). October 19, 2026 Etsushi Fujimoto, Mayor of Aki Takata City 1. Ordering Details (1) Work Name: Tajihigawa River Improvement Compensation Work (Nukanobashi Temporary Structure 1) (2) Work Location: Yoshida-cho, Aki Takata City, Yoshida (3) Work Outline: [Laying Work] Hard vinyl chloride pipe φ350 L=17m Ductile cast iron pipe φ200 L=107.24m Polyethylene pipe φ75 L=46.52m [Electrical Equipment] No. 3 Manhole Pump Temporary Work: 1 set No. 4 Manhole Pump Temporary Work: 1 set (4) Construction Period (Scheduled): From the day after the contract date to March 31, 2027 (5) Estimated Price: ¥25,128,000 (excluding consumption tax equivalent) (6) Method of Selecting Successful Bidder: Subject to low bid price investigation system (in accordance with the "Low Bid Price Investigation System Handling Manual for Construction Works") (7) Bid Bond: Exempt (8) Contract Deposit: Payment (Common Item 17) (9) Qualification Requirement Documents: To be submitted after bid opening (Announcement 3(7) and Common Item 6) (10) Other: - 2. Bid Participation Qualifications In addition to the requirements listed in Common Item 3(2), all of the following requirements must be met. Requirements other than technical requirements (1) Reiwa 7/8 Aki Takata City Construction Works Bid Participation Qualification a. Certified business type: Civil Engineering (General) Works (2) Location of business office (Article 3, Paragraph 1 of the Construction Industry Act): Must have a principal business office within Aki Takata City. (3) Average annual completed construction value: For the business type specified in 2(1)a, it must be equal to or greater than 1/2 of the estimated price listed in 1(5). (4) Requirement for specific construction business license: A specific construction business license is required if subcontracting amounts to or exceeds the amount specified in Article 2 of the Cabinet Order for the Construction Industry Act. (5) Not a contractor for design work, etc. (listed on the right) or have capital and personnel relations with such contractor. Fukken Chosa Sekkei Co., Ltd. Technical Requirements (6) Prime contractor construction experience a. Type (and scale): Pipeline excavation work b. Completion inspection: Must have undergone a completion inspection between April 1, 2011, and October 18, 2026. c. Other: Limited to public works, etc., ordered by the national government, local governments, or public corporations as defined in Table 1 of the Corporation Tax Act. (7) Assigned Engineer a. Requirement for dedicated assignment: Dedicated assignment is required if the contract amount is equal to or exceeds the amount specified in Article 27, Paragraph 1 of the Cabinet Order for the Construction Industry Act. b. Qualifications, etc.: If subcontracting amounts to or exceeds the amount specified in Article 2 of the Cabinet Order for the Construction Industry Act, the person must meet the requirements of Article 15, Paragraph 2, Item a of the Construction Industry Act (Class 1 Civil Engineering Construction Management Engineer, etc.) and have the qualifications of a supervising engineer; otherwise, the person must meet the requirements of Article 7, Paragraph 2, Item a, b, or c of the Construction Industry Act. c. Experience: Not required (Note) * For (1)b and c, if the business type in (1)a is prestressed concrete construction or steel bridge superstructure construction, it shall be for civil engineering (general) works or steel structures, respectively. * For (2) and (4), if the business type in (1)a is prestressed concrete construction, slope treatment work, or steel bridge superstructure construction, it shall be for civil engineering (general) works, scaffolding, earthwork, and concrete works, or steel structures, respectively. * (3) refers to the comprehensive evaluation score notification or examination standard date for management item examination attached when applying for qualification review of (1), or a management item examination comprehensive evaluation score notification or examination standard date that is later than this. * (5) Capital and personnel relations refer to the following cases: - Owns more than half of the total issued shares of the said contractor. - The representative director concurrently serves as the representative director of the said contractor. * For (7)b, if the business type in (1)a is prestressed concrete construction, slope treatment work, or steel bridge superstructure construction, it shall be for civil engineering (general) works, scaffolding, earthwork, and concrete works, or steel structures, respectively. * For (6) and (7), if it is experience as a member of a specific construction joint venture or a regular construction joint venture, it is limited to those with an investment ratio of 20% or more. 3. Bidding Schedule, Procedures, etc. Period/Date Location/Method, etc. (1) Design Document Viewing From October 19, 2026, to November 4, 2026, daily (excluding holidays) From 9:00 AM to 4:30 PM Aki Takata City Hall, Main Building, 2nd Floor, Viewing Room and Electronic Bidding System (791 Yoshida-cho, Aki Takata City) (2) Questions regarding design documents From October 19, 2026, to November 2, 2026, daily (excluding holidays) From 9:00 AM to 4:30 PM Aki Takata City Planning Department, Finance Division, Bidding and Inspection Section (791 Yoshida-cho, Aki Takata City) Tel: 0826-42-5623 Submit in writing (3) Viewing of answers to questions Until November 4, 2026, daily (excluding holidays) From 9:00 AM to 4:30 PM - Aki Takata City Hall, Main Building, 2nd Floor, Viewing Room and Electronic Bidding System (791 Yoshida-cho, Aki Takata City) - Posted on the Aki Takata City website http://www.akitakata.jp/ (4) Submission of technical documents for comprehensive evaluation - - (5) Bidding From 9:00 AM on November 5, 2026, to 4:00 PM on November 6, 2026 * If submitting a written bid as stipulated in the Electronic Guidelines, from 4:00 PM on November 5, 2026, to 9:00 AM on November 6, 2026. Electronic Bidding (Submission location for written bids as stipulated in the Electronic Guidelines is the same as (2)) (6) Bid Opening 9:32 AM on November 9, 2026 Via the Electronic Bidding System (7) Submission of Qualification Requirement Documents From the date of receiving the request for submission of qualification requirement documents until the submission deadline specified in the request, daily (excluding holidays) From 9:00 AM to 3:00 PM Submit in person or via the Electronic Bidding System (If submitting in writing, the submission location is the same as (2)) (Note) * Holidays refer to holidays as defined in Article 1 of the Aki Takata City Holiday Ordinance. 4. Construction Cost Breakdown (Common Item 2) The construction cost breakdown form can be downloaded from the Aki Takata City website. http://www.akitakata.jp/ 5. Inquiries Aki Takata City Planning Department, Finance Division, Bidding and Inspection Section (791 Yoshida-cho, Aki Takata City Tel: 0826-42-5623) TEMPORARY QUANTITY SUMMARY TABLE 1-2 Name Type Detail Shape Dimensions Unit Quantity Accounted Quantity Remarks Pipeline Work (Inner Diameter φ350VU) Route Length m 19.40 Pipe Body Length m 17.00 Pipe Laying Work VU350 m 17.00 17.0 Rubber Ring Joint Straight Pipe Hard Vinyl Chloride Pipe SRA350 L=4,000 Piece 2 2 Plain End Straight Pipe 〃 PE350 L=4,000 Piece 3 3 Flexible Joint Manhole Joint φ350, Upstream Piece 3 3 Flexible Joint φ350, Downstream Piece 3 3 Earthwork Excavation Work 0.28m3 Backhoe m3 16.3 20 Sand Base Tamping Compaction m3 1.28 1 Sand Backfill Tamping Compaction m3 4.10 4 Backfill Work 0.28m3 Backhoe m3 8.3 80 0.28m3 Backhoe 4tDT (to temporary storage) Earthwork Disposal Transport Distance: 0.5km m3 7.1 7 Loading (Loose) Earth and Sand m3 7.1 7 0.80m3 Backhoe 10tDT (to receiving facility) Residual Soil Disposal Work Transport Distance: 11.3km m3 7.1 7 Pipeline Work (Inner Diameter φ200GX) Route Length m 107.24 Pipe Body Length m 107.95 Pipe Laying Work DIP-GX200 m 107.95 108.0 GX Type Straight Pipe S Type DIP-GXφ200 L=5,000 Piece 8 8 GX Type Straight Pipe (for cutting) Type 1 〃 DIP-GXφ200 L=5,000 Piece 14 14 GX Type Single Socket Elbow 〃 DIP-GXφ200×90° Piece 1 1 GX Type Single Socket Elbow 〃 DIP-GXφ200×45° Piece 9 9 GX Type Single Socket Elbow 〃 DIP-GXφ200×22 1/2° Piece 2 2 GX Type Single Socket Elbow 〃 DIP-GXφ200×11 1/4° Piece 2 2 QUANTITY SUMMARY TABLE Ductile Cast Iron Pipe GX Type Name Type Detail Shape Dimensions Unit Quantity Accounted Quantity Remarks QUANTITY SUMMARY TABLE Ductile Cast Iron Pipe GX Type Single Socket Elbow Pipe Laying Work GX Type 〃 DIP-GXφ200×5 5/8° Piece 22 22 GX Type Joint Ring 〃 DIP-GXφ200 Piece 2 2 GX Type Double Socket Short Pipe 〃 DIP-GXφ200 Piece 6 6 GX Type Double Socket T-Junction 〃 φ200×φ200 Piece 1 1 GX Type Cap 〃 φ200 Piece 1 1 Liner φ200 Piece 9 9 Support Bracket Piece 10 - *Measured as bridge quantity U-Bolt Piece 10 - 〃 Straight Joint φ200 Piece 22 22 Reducer 〃 φ200 Piece 35 35 Grooving "Simultaneous Cutting and Grooving" 〃 φ200 Piece 23 - Accounted as Pipe Cutting Work φ200 Piece 23 23 Accounted as Installation Length: 38.2m Pipe Protection Work Steel Plate 22×1524×3048 m2 60.5 61 Days: 120, 13 sheets Earthwork Excavation Work 0.28m3 Backhoe m3 31.0 30 Sand Backfill Tamping Compaction m3 11.10 10 Backfill Work 0.28m3 Backhoe m3 17.3 20 0.28m3 Backhoe 4tDT (to temporary storage) Earthwork Disposal Transport Distance: 0.5km m3 11.8 10 Loading (Loose) Earth and Sand m3 11.8 10 0.80m3 Backhoe 10tDT (to receiving facility) Residual Soil Disposal Work Transport Distance: 11.3km m3 11.8 10 Pipeline Work (Inner Diameter φ75PE) Route Length m 45.88 Pipe Body Length m 46.52 Pipe Laying Work PEφ75 m 46.52 46.5 〃 Name Type Detail Shape Dimensions Unit Quantity Accounted Quantity Remarks QUANTITY SUMMARY TABLE Single Socket Straight Pipe Pipe Laying Work Polyethylene Pipe PE-SEφ75 L=5,000 Piece 9 9 Elbow 〃 PE-90BSφ75 Piece 1 1 Elbow 〃 PE-45BSφ75 Piece 5 5 Elbow 〃 PE-22BSφ75 Piece 2 2 Elbow 〃 PE-11BSφ75 Piece 2 2 Color 〃 PE-Dφ75 Piece 3 3 Flanged Short Pipe 〃 PE-Fφ75 Piece 1 1 Cap 〃 PE-Cφ75 Piece 1 1 Flanged Branch Pipe 〃 φ75×φ75 Piece 1 1 K Type Short Pipe No. 1 Ductile Cast Iron Pipe DIP-Kφ75 Piece 2 2 Fusion Joint Joint φ75 1 port 19 19 Fusion Joint 〃 φ75 2 ports 3 3 Flanged Joint 〃 φ75 ports 2 2 Mechanical Joint 〃 φ75 ports 2 2 Pipe Cutting Work φ75 ports 8 8 Pipe Protection Work Sleeve SPφ150 m 10.3 10 Installation Length: 9.7m Steel Plate 22×1524×3048 m2 18.6 19 Days: 120, 4 sheets Earthwork Excavation Work 0.28m3 Backhoe m3 23.0 20 Sand Base 〃 m3 2.53 3 Sand Backfill 〃 m3 4.43 4 Backfill Work 0.28m3 Backhoe m3 15.8 20 0.28m3 Backhoe 4tDT (to temporary storage) Earthwork Disposal Transport Distance: 0.5km m3 5.5 6 Loading (Loose) Earth and Sand m3 5.5 6 0.80m3 Backhoe 10tDT (to receiving facility) Residual Soil Disposal Work Transport Distance: 11.3km m3 5.5 6 Name Type Detail Shape Dimensions Unit Quantity Accounted Quantity Remarks QUANTITY SUMMARY TABLE Manhole Installation Work No. 1 Assembly Manhole Depth 3m or less Location 4 T-14 Manhole Frame Inner Diameter 600mm, with frame H=110mm Set 4 4 Adjustment Fitting H=25mm Set 2 2 〃 H=45mm Set 2 2 Adjustment Ring Inner Diameter 600mm H=50mm Piece 3 3 〃 〃 H=100mm Piece 1 1 Sloped Block Inner Diameter 600/670mm H=150mm Piece 3 3 〃 Inner Diameter 600/900mm H=600mm Piece 1 1 Vertical Block Inner Diameter 900mm H=300mm Piece 1 1 Body Block Inner Diameter 900mm H=900mm Piece 3 3 〃 〃 H=1800mm Piece 1 1 Base Slab H=130mm Piece 4 4 Split Horseshoe Cut for Manhole Cutting Work VUφ350 Location 1 1 〃 VUφ350 Location 2 2 〃 PEφ75 Location 2 2 Assembly Manhole Installation Work 3.0m or less Location 4 4 Name Type Detail Shape Dimensions Unit Quantity Accounted Quantity Remarks QUANTITY SUMMARY TABLE T-14 Vinyl Manhole Protective Frame Inner Diameter 300mm (with settlement prevention plate) Set 1 1 Sealed Inner Lid φ300 Piece 1 1 Plain End Straight Pipe Hard Vinyl Chloride Pipe PE300 L=4,000 Piece -- 150-300 Invert KDR H=1,000 Piece 1 1 Included in installation work Vinyl Small Manhole Installation Work Less than 2.0m Location 1 1 Main Pipe Diameter 350mm Branch Pipe Installation Work Outer Branch Pipe Installation Work Branch Pipe Diameter 200mm Location 1 1 Step 1.7m Branch Pipe 90-degree Elbow VSφ350-200 Piece 1 1 Adhesive Socket Collar WTBφ200 Piece 1.0 1 Plain End Straight Pipe VUφ200×4000 Piece 0.3 0.3 Branch Pipe 90-degree Elbow 90STφ200 Piece 1 1 Concrete 18N/mm2 m3 0.5 0.5 18-8-40BB Formwork m2 3.3 3 Crushed Stone Base RC-40, t=20cm 0.3m2 m2 0.06 0.06 Pavement Demolition and Restoration Work Pavement Cutting Work Asphalt t=20cm or less m 32.6 33 t=4cm Pavement Slab Demolition Work Asphalt 0.28m3 Backhoe m2 17.2 17 4tDT (to temporary storage) Asphalt Debris Disposal Asphalt Transport Distance: 0.5km m3 0.9 0.9 Asphalt Debris Loading Asphalt m3 0.9 0.9 10tDT (to receiving facility) Asphalt Debris Transport Asphalt Transport Distance: 11.3km m3 0.9 0.9 Asphalt Debris Disposal Work Asphalt t 2.1 2 0.9m3*2.35=2.1t Pavement Work Regenerated Dense Graded Asphalt (20) t=3cm m2 6.4 6 RC-30 Base Course Work Regenerated Crushed Stone t=12cm m2 6.4 6 Excavation for Pavement m3 0.1 0.1 Leveling m2 7.7 8 t=5cm Surface Course Work Regenerated Dense Graded Asphalt (20) Road width less than 1.4m m2 14.1 14 Name Type Detail Shape Dimensions Unit Quantity Accounted Quantity Remarks QUANTITY SUMMARY TABLE