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Margaret Hunt Hill Bridge, 2012 OCEA
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The Margaret Hunt Hill (MHH) Bridge was designed as part of a broader collaborative development project between the Texas Department of Transportation (TxDOT) and the City of Dallas to revitalize the Trinity River floodplain. The MHH Bridge is the Woodall Rogers Freeway crossing over the Trinity River connecting Downtown and West Dallas; it has become not only a literal bridge between these two areas but also a figurative bridge over the economic chasm that exists between them, spurring urban planning and economic development aimed at revitalizing West Dallas. The bridge was the concept of renowned Spanish architect, artist and engineer, Santiago Calatrava.  It instantly became an iconic city landmark for its singular design, whose signature features are a center arch pylon that rises 440 ft. above the floodplain  - gracing the Dallas skyline with its unique, mesmerizing arrangement of cables.

 

The final realization of this incredible achievement was made possible by the perseverance and innovation of the construction team. The institution of new national levee requirements mid-way through the project’s construction required the team to overcome new challenges and efforts to obtain the required 208 permit; this was achieved while staying on schedule and on budget. One of many process improvements - the use of a floating tension rig contained within the expansion sleeve in place of the larger, bulkier deviator installed inside an external guide pipe - improved the appearance of the arch and reduced construction costs and installation schedules. Upon completion, a three-day grand opening gala was held to celebrate the MHH Bridge. More than 40,000 people came out to participate in the weekend-long festivities culminating in a dramatic fireworks display - illuminating the Dallas skyline, highlighting its newest addition. Broader development plans for the Trinity River floodplain include three more Calatrava bridges, the second of which received funding approval from the Dallas City Council in January, 2013.


Owners: 
Texas Department of Transportation (TxDOT)
 City of Dallas
Architect/Engineer: 
Santiago Calatrava LLC
Contractor: 
Williams Brothers Construction Company Inc.
  Marco Becerra, CC 2.0 License

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