Round two of a series of weekend closings of Interstate 45 in downtown Houston starts at 9 p.m. Friday, which could make those early holiday trips a bit more complicated.

Crews replacing the West Dallas bridge spanning I-45 will close the freeway in both directions from Interstate 10 to U.S. 59, according to the Texas Department of Transportation. Detours along Loop 610 are advised, where possible, to avoid the downtown area, officials said.

The freeway will reopen by 5 a.m. Monday, TxDOT spokesman Danny Perez said. Weather is not expected to affect workers’ progress on placing the concrete girders that will hold up the roadway across the freeway.

“Come Monday you will see the new beams,” Perez said.

The closing is the second of four weekend closings planned to replace the bridge, which was struck by a piece of construction equipment being transported along I-45 on Sept. 2. Additional closings are planned Dec. 2-5 and Dec. 9-12.

The new bridge, expected to cost $2.3 million, will open in late December or early January, along with a new entrance ramp to southbound I-45 from Houston Avenue and Allen Parkway.