LAKEWOOD -- The first set of bridge girders for one of two new Thorne Lane overpasses that span Interstate 5 along Joint Base Lewis-McChord are scheduled to be installed during overnight hours starting at 10:30 p.m. June 28.

This work will require traffic in both directions of I-5 be reduced to a single lane and directed up and over the Thorne Lane ramps. Law enforcement will be in place to assist with traffic control.

The work is part of the ongoing I-5 widening project along JBLM. Once the new overpass is complete, it will span all lanes of I-5 and the adjacent rail line, elevating traffic over trains. The $495 million effort is scheduled to be complete in 2025.

OVERNIGHT RAMP CLOSURES

Drivers can expect to see overnight single lane closures each night this week on both directions of I-5 in the work zone between the hours of 8:30 p.m. to 4:30 a.m.

Additional ramp closures are scheduled this week at 41st Division Drive for guardrail and noise wall construction.

• June 25

Northbound I-5 exit to 41st Division Drive will close from 8:30 p.m. to 4:30 a.m.

41st Division Drive on-ramp to northbound I-5 will close from 8:30 p.m. to 4:30 a.m.

• June 26

Northbound I-5 exit to 41st Division Drive will close from 8:30 p.m. to 4:30 a.m.

41st Division Drive on-ramp to northbound I-5 will close from 8:30 p.m. to 4:30 a.m.

• June 27

Northbound I-5 exit to 41st Division Drive and the 41st Division Drive on-ramp to northbound I-5 will close from 9:30 p.m. to 4:30 a.m.

• June 28

Northbound and southbound I-5 will be reduced to a single lane and that single lane will be detoured up and over the Thorne Lane off- and on-ramps from 10:30 p.m. to 5:30 a.m.