I-255 Jefferson Barracks Bridges Rehabilitation

Location

Jefferson Barracks Bridge, St. Louis, IL, USA

Project Size

341,000 sq ft

Completed Date

2023

Prime Contractor

KCI Construction Company

Client

MODOT

Value

$21,000,000

About Project

Officially recognized as the Jefferson Barracks Memorial Arch Bridge, the “JB Bridge” consists of two arch bridges carrying six traffic lanes connecting Illinois and Missouri on the southern end of St. Louis.

In the winter of 2022, Thomas Industrial Coatings began a work plan that included installing a work platform spanning the 4,000-foot lengths of the east and westbound bridges.

Surface preparation included washing all concrete bents not being coated, brush blasting and brush and rolling a chlorinated rubber coating on the clearance gauges, and containing and SSPC SP-10 abrasive blasting all structural steel, including all bridge girders, approaches, and archways of the bridge.

The coating application consisted of one coat of zinc primer and two coats of acrylic. The scope of work also included SSPC SP 11 power tool cleaning welds at various locations for inspections. With traces of existing lead coating on the substrates, processes were in place to protect the environment and the workers on-site.

Aerial View

Drone View

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