Tule Lake Vertical Lift Bridge

Location: Corpus Christi, Texas

Client: Port of Corpus Christi

This structure is a combination railway-highway crossing of the Tule Lake Ship Channel. The 344-foot lift span provides a 300-foot clear channel with 140 feet of underclearance. Heavy truck traffic uses the bridge to and from the port.

Machinery was modified to operate under an increase of 15 percent in lift span dead load. This required replacement of several bearings, high speed gears and installation of new hydraulically actuated disc brakes. A new mechanical diesel emergency drive was also added. The electrical modernization included total replacement with a programmable system operated from off-structure. Power Trac connection was provided to the lift span for power and control circuits along with closed circuit TV monitoring of the far bank and machinery room.

  • Design, plans, specification and complete construction supervision
  • Periodic inspections
  • Complete structural, mechanical and electrical inspection
  • In-depth mechanical and electrical inspection, 1989
  • Preparation of plans and specifications for machinery modifications required by additional dead load for upgrading the lift span to E-80 rail loading and HS25 highway loading, along with complete replacement of electrical power, control and operation systems, 1993
  • Electro-mechanical inspections, 1998-2007
  • Shaft repairs, rope cleaning, 2002
  • Channel widening study, 2003
  • Operating rope changeout, 2004
  • Design for new CW ropes and sheaves, 2006
  • Lift span float out, 2008