Location:  Metairie, LA

Project Description:

LH&J was the prime engineering consultant for the Emergency Breach Closure, Permanent Breach Repairs and Interim canal Closure and Drainage Pumping Station that were constructed at the 17th Street Canal as a result of damages caused by Hurricane Katrina. Each of these emergency projects required innovative solutions and intensive collaboration with the Corps of Engineers and the limited available construction contractors to develop repairs and improvements that could be designed and implemented on a fast-track basis.

Location:  New Orleans, LA

Project Description:

The North and South IHNC T-walls serve as the terminations and tie-ins for the IHNC Floodwall that was constructed to block hurricane surges from Lake Borgne to keep them from entering the Inner Harbor Navigation Canal (IHNC) and Gulf Intracoastal Waterway (GIWW). LH&J prepared the designs, plans & specifications for these massive floodwalls that extend 26 feet above the normal water level. LH&J also performed extensive engineering during construction services for prime construction contractor under this Design-Build project

Location:  Harvey, LA

Project Description:

This flood protection project featured 8,000 feet of concrete T-Walls and with 9 swing gates for automobiles, railroads and pedestrians. Its proximity to the Boomtown Casino required LH&J to perform extensive coordination with the casino operators, the West Jefferson Levee District and the U.S. Army Corps of Engineers to develop a flood protection project that minimized disruptions to the commercial businesses along this industrialized section of Peters Road.

Location: New Orleans, LA

Project Description:

This feature of the LPV 109 flood protection project was designed by LH&J to provide protection from storm surges up to an elevation of 22 feet. The selected option featured two rolling flood gates, each 38 feet wide with a center pedestal to accommodate the four traffic lanes. The project required extensive planning and coordination for the maintenance of traffic along this busy highway and relocation of affected utilities without interrupting service during construction.

Location: St. Bernard Parish, LA

Project Description:

LH&J performed on site assessments and evaluations to identify and quantify Storm Proofing Measures that would help ensure the survivability and post-hurricane operability for eight existing Drainage Pump Stations in St. Bernard Parish, LA. The final report prioritized the recommended enhancements and identified over $60 million in improvements to the existing stations.

Location: New Orleans, LA

Project Description:

LH&J prepared the Design Documentation Report, MicroStation Construction Plans, Specs intact Format Specifications and MII Cost Estimate for the 17-foot high concrete T-walls and 34 foot wide rolling flood gate along this 1,500 foot long reach of critical flood protection. The design was optimized to fit within a tightly restricted Right-of-Way and to defer demolition of the existing I-walls and gate as long as possible to minimize exposure to storm surges during the construction phase.