Road 431 Build-Operate-Transfer / Tel Aviv, Israel

Services Provided by FINLEY

  • Superstructure Design
  • Construction Engineering
  • Integrated Shop Drawings Preparation
  • Temporary Works Design
  • Technical Assistance during Construction


First Use of External Post-Tensioning Tendons on an Israeli Bridge Structure


Netivay Hayovel Ltd.


Cebus Rimon Industrialized Construction Ltd.


$213 million

Start Date

February 2006

Completion Date

June 2009

Specifications & Details

Sustainability - Get In, Get Out, and Stay Out (357 KB)

ASPIRE Magazine, Spring 2009, Craig Finley, P.E.

Road 431: Advancing Segmental Bridge Technology in Israel (898 KB)

ASBI, SEGMENTS Newsletter, Project News, Winter 2007

Advanced Segmental Bridge Technology - Case Study (1 MB)

LUSAS Bridge, June 2007

Road 431 is a lateral access road toward the Cross Israel Highway (Highway 6) and constitutes the southern traffic artery of the ring road surrounding the Greater Tel Aviv Metropolitan Area (Gush Dan), consisting of Ayalon Highway in the West, Highway 6 in the East, and Road 531 in the North. The road connects between Rishon-Letzion in the West and Modiā€™in in the East.

The Road 431 Project is the first in Israeli bridge construction history to use external tendons. This project consists of an interchange with six precast segmental bridges. These 12.5 m-wide bridges will have span lengths ranging from 30 to 66 m and will consist of 501 precast segments with a total deck area of more than 18,000 square meters.

The use of external tendons provided simplified precasting details, rapid erection procedures, and improved long-term durability as well as technical advantages in the bridge design, such as increased ductility for flexural movement resistance and a significant reduction in principle tensile stresses in the box girder webs. These benefits allowed for longer, constant-depth span lengths for the bridges while still meeting the interchange design requirements.

FINLEY provided superstructure design and construction engineering services. Construction Engineering services include shop drawings, temporary support design, construction analysis, casting geometry, post-tensioning calculations, and erection manuals.