The Texas Department of Transportation will temporarily close portions of Loop 363 at its intersection with Union Pacific railroad overpass at U.S. Highway 190 from 7 p.m. today to 7 a.m. Thursday and from 7 p.m. Thursday to 7 a.m. Friday.

The closures will allow construction crews to install bridge beams for the new railroad bridge at that location.

Tonight’s detour will close the eastbound lanes of Loop 363 and Spur 290 at the eastbound railroad overpass, and detour eastbound traffic along westbound U.S. 190/Texas Highway 36 and under the railroad bridge over the westbound lanes at that location. Both eastbound and westbound traffic will be reduced to one lane at the bridge site.

The Thursday night detour will close the westbound lanes of Loop 363 and reverse the traffic flow of Spur 290 to accommodate the single-lane restricted traffic flow to First Street and the Loop.

The $7.6 million project will result in replacement of the existing two-bridge crossing with a single, higher and wider structure that meets current roadway safety and design specifications, according to the department.

The project is scheduled for completion in the summer of 2009.