Chiyoda Engineering Consultants Co., Ltd.
Company Profile
Name in Full :Establishment :Capital :President :Employees
Clients

Chiyoda Engineering Consultants Head Office:2-6 Kanda-Sudacho, Chiyoda ku,Co., Ltd.
Tokyo 101-0041 Japan
December 3, 1962
Telephone:(81-3) 5974-5651
270,000,000yen
Telefax:(81-3) 5974-5181
Tadashi HAMADA
E-mail:m-kojima@chiyoda-ec.co.jp
331（as of October 2022）
Website:https://www.chiyoda-ec.co.jp/
Ministry of Land, Infrastructure, Transport and Tourism
Japan Railway Construction, Transport and Technology Agency
Central Nippon Expressway Company Limited East Nippon Expressway Company Limited, West
Nippon Expressway Company Limited
Tokyo Metropolitan Government, and other Japanese local governments
Japan International Cooperation Agency

Providing Services

We conceive an idea, a plan of road and railway traffics, and we design, manage construction proceedings,
maintain structures of roads, railways, tunnels and bridges along with road and railway projects. For best and all
civil engineering consulting services on road and railway traffics, road environment research and assessment,
landscape planning of road and bridge structures, geological survey and evaluating projects are offered【Elevated Bridges】Survey

Assuring geologic factors affecting at addressed construction sites for plan and design ofbridges and establishing design requirements

PlanPreliminary, conceptual design of road and railway bridges for proceeding plans

DesignDetailed, execution designs for construction road and railway bridges【ROAD】
Plan and Design

Whole process of design of traffic expressways, highways, national roads, applying
pavements, cycling lanes to traffic roads, countermeasure for soft ground and road slope facefor constructing traffic roads

Subsidiary structure

Design of road structures, electric cable ducts, sign boardRoad space

Research and analysis of road space utilization, reallocation

Project Evaluation

Ex-ante and Ex-post Evaluation, improvement effect and cost-effectiveness of Road works

Project Management

Work planning, making and managing work schedules and project management

Project Achievement／Technical Expertise
Sannai Maruyama Railway bridge in
Tohoku-Shinkansen
RailwayinAomori, Japan.
L=450m, extradosed bridge for highspeed Shinkansen railway. DesignAward of Japan Society of Civil
Engineering in 2008

Inter Change in an expressway in
Kagoshima, Japan.
Design of sign boards, highway
lighting, traffic information boards,
communication cable pipeline andtraffic safety facilities

Traffic bridge in Metropolitan
Expressway in Japan.
L=158m, double-deck truss bridge
superstructure, Design Award ofJapan Society of Civil Engineering inin 2015

A bike lane and a pavement along
No.16 National Road in Kanagawa,Japan.
Providing road improvement policy
for implying bike lanes, construction
plan and work schedule.

Shikaura Bridge inJapan.
Traffic road bridge
rigid-frame bridge.

A bike lane and a pavement along
No.16 National Road in, Japan.
Design of bike lane, 4-lane nationalroad and construction plan alongroad improvement policy

Kagoshima,
L=240m 、Contact person
NameE-mail: Masauki KOJIMA, Manager, Overseas Business Dept.
: m-kojima@chiyoda-ec.co.jp