8 p.m. update to I-5 Train Derailment

Update to train derailment in DuPont Washington

6 p.m. WSDOT UPDATE: I-5 Center Drive detour not recommended for commercial vehicles


LOCATION: Southbound I-5 at Mounts Road (milepost 116).

DETAILS: All travelers are advised to avoid southbound I-5 south of Tacoma. A train derailment has closed all lanes of southbound I-5 at Mounts Road near the Pierce-Thurston County line. Southbound I-5 will remain closed for an extended period of time. We strongly encourage travelers to use alternate routes until at least tomorrow morning.

Alternate routes to southbound I-5:

We’re already seeing significant congestion on State Route 507 and State Route 7, and do not recommend motorists take State Route 302.

Northbound I-5 traffic is encouraged to stay on northbound I-5 and not exit at Center Drive.

For the latest detour information, continually check the Washington State Patrol blog.

FOR MORE INFORMATION: Drivers can get real-time traffic information about this area on their phone with the WSDOT traffic app and by following the WSDOT Tacoma Twitter feed.

6 p.m. Update from JBLM: I-5 South Detour: USE EXIT 118-NOT 119 You will cross the overpass over I-5, go through the Center Dr. Gate onto JBLM, turn right on Perimeter Rd., and then be directed I-5 Southbound Detour: DON’T use 119 and try to enter JBLM through the DuPont Gate, you will be turned around.

Northbound traffic is encouraged to stay on northbound I-5 and not exit at Center Drive to allow for southbound traffic to detour around the I-5 freeway closure.

If possible, avoid both southbound and northbound I-5 near DuPont for the rest of today and for the morning commute on Tuesday December 19..

The incident occurred at 7:38 a.m. on Monday December 18, according to Washington State Department of Transportation.

The Washington State Patrol Criminal Investigation Detectives are documenting evidence at the scene including using Unmanned Aerial Vehicles (UAVs) to take photos of the crash site. Detectives also interviewed witnesses in order to assist the National Traffic Safety Board  investigators.

For the latest traffic information follow  @wspd1pio  @wsdot_tacoma 

Updated Amtrak information.