The replacement work of the expansion joints on the Tomei Expressway (Yokohama area) has been completed without any accidents. The large-scale project was successfully carried out with a consistent system and track record in investigation, design, manufacturing, sales, and construction.

クリテック工業本社、大阪営業所、福岡営業所

The replacement work for the expansion joints on the Tomei Expressway (Yokohama section) has been successfully completed, and the completion inspection was finished on April 9, 2026. This project, which we undertook as the main contractor, is the largest scale project our company has ever handled (with a construction period of about one and a half years). Crittec Industries, as a manufacturer of expansion joints for bridges, handles everything from research, design, manufacturing, and sales to construction in a consistent manner. In this project, we leveraged our on-site adjustment capabilities, technical skills, and a network of multi-skilled personnel to achieve smooth construction. Furthermore, due to the trust and experience we have built up over the years with numerous construction achievements in the challenging infrastructure environment of the Tomei Expressway since our founding, we successfully completed this project as the main contractor. Our flagship product, the "Hybrid Joint," is characterized by long-term durability and high water-tightness, and it has been adopted in many bridges. We would like to express our deep gratitude to the client, Central Nippon Expressway Company Limited, our partner companies, and the local residents.

Date and time
Capital
Entry fee

Related product information

NEXCO specifications expansion device new product born! Obtaining NEXCO certification!
New product NEXCO certified | CF-20 | NCF type | 3LII-150 | 3LII-160 |

Hybrid Joint Characteristics by Type CF Type (NEXCO Specification, Load Support Type) - High water-tightness - Low noise for comfortable driving - Complies with NEXCO standards NCF Type (NEXCO Specification, Load Support Type) - High water-tightness - Low noise for comfortable driving - Complies with NEXCO standards - Snow pressure resistant 3LII Type (NEXCO Specification, Load Support Type, Heavy Type) - Accommodates large expansion and wide gaps - High water-tightness - Long-term durability of 50 years, maintenance-free - Complies with NEXCO standards - NETIS Registration No. KT-210067-A - Snow pressure resistant
Durable 100-Year Expansion Device for Bridges, Type 3LII
A newly constructed bridge requires no replacement for 100 years! Long-term water resistance, maintenance-free.

【Features】 1. Ultra-long durability of 100 years: Achieved 12 million cycles in fatigue loading tests by a third-party organization. 2. Long-term water-tightness of 50 years: Proven water-tightness equivalent to 50 years. Secondary water-tight materials are standard specifications. 3. Accommodates large expansion and wide gaps: One of the largest expansion capacities among NEXCO-approved products. 4. Ultra-low noise and vibration-free: Reduces noise with a vertical integrated structure. 5. Easy to install: Installation possible with lane restrictions on one side. 【Our Strengths】 Crittec Industries is a comprehensive manufacturer of bridge expansion devices, conducting everything from research, design, manufacturing, sales, to construction in-house. We provide products tailored to customer needs and contribute to the longevity of bridges.