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$9.9M TX Bridge Coating Work Awarded

Friday, October 1, 2010

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The Texas Department of Transportation has awarded Intech Contracting LLC of Lexington, KY, a $9,987,560 contract to clean and recoat structural steel surfaces on the Martin Luther King Jr. Bridge in southeastern Texas.

The 5,032-foot-long cantilever bridge, which was built in the 1960s, stretches across the Sabine-Neches ship canal, connecting Port Arthur, TX, with Pleasure Island and Louisiana. The steel is currently protected by two coats of shop-applied vinyl and two coats of field-applied vinyl.

The coatings work will involve three treatments:

  • The steel on 12 spans will be abrasive blast-cleaned to a Near White finish (SSPC-SP 10) and recoated with a zinc primer, an epoxy intermediate, and a urethane finish (TxDOT System III).
  • The steel on three spans will be spot-primed and overcoated with an aluminum epoxy mastic system or a micaceous iron oxide and aluminum-filled moisture-cured urethane system.
  • The steel on 19 spans will be spot-coated, also with an aluminum epoxy mastic system or a micaceous iron oxide as well and aluminum moisture-cured urethane system.

The project also includes applying zinc thermal spray to 8,000 square feet of repaired reinforced concrete. The existing vinyl coatings contain lead (0.03% maximum), which must be contained.

mlkbridge_photo
Martin Luther King Jr. Bridge

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Tagged categories: Abrasive blasting; Bridges; Contract awards; Structural steel

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