Jobsite description

The Interchange includes:

  • 43 bridges distributed across 5 levels (thus the name “High Five”), with the highest ramps 120 feet (37 m) above ground
  • a total of 710 support tiers
  • 30,000 feet (9,144 m) of drainage pipes
  • nearly 60 lane-miles of new roadway
  • stretches from north to south: 2.4 miles (3.9 km)
  • streches from east to west: 3.4 miles (5.5 km).
  • Total volume of concrete: 500 000 m3

CHRYSO expertise

11 million dollars early completion bonus is paid to the contractors thanks to the combination of last generation admixtures and maturometry technologies.


  • Speed-up concrete placement
  • Stripping of multiple concrete mix designs from 0 slump to SCC

Project technical challenges

During construction staging, to maintain traffic flow, most of the fly-over ramps are built over the existing partial cloverleaf interchange. The old junction is then demolished with little disruption once the new lanes are operational.

Project participants

Owner: Texas Department of Transportation (D.O.T.)
Contractor: Zachry Construction Corporation

Other references

Real estate


The Leonardo began construction on 17 November 2015.
It is a 55 floor mixed-use property development in Sandton, Johannesburg, South Africa that stands at a height of 234 metres.

View reference

Osmangazi Bridge

The Izmit Bridge is a part of the Izmir – Istanbul highway project.

It is the 4th longest suspension bridge in the world.

Izmit, Turkey
View reference
Osmangazi Bridge