Interstate 8 and Imperial Avenue Interchange Project

FILE PHOTO 2020- Caltrans crews use excavators with breaker attachments to demolish the Imperial Avenue interchange bridge that connects to Interstate 8 Thursday evening, July 23, in El Centro. 

 Detours at Forrester Road and SR-86/4th Street

EL CENTRO — Full freeway closures on Interstate I-8 (I-8) between Forrester Road and State Route 86 (SR-86)/4th Street are scheduled for four consecutive nights beginning Monday for the I-8/Imperial Avenue Interchange Project.

Construction crews will close all lanes on eastbound I-8 from Forrester Road to SR-86/4th Street Monday from 9 p.m. to 5 a.m. to install falsework. One lane of westbound I-8 will also be closed during this time with the remaining westbound lanes open to traffic. 

Crews will close all lanes of the westbound I-8 section Tuesday and Wednesday from 9 p.m. to 5 a.m.

 The same stretch of eastbound I-8 will be closed overnight Thursday, April 1 during the same time.

 Detours are as follows: 

  • Detour for eastbound I-8 closures: Eastbound traffic will be detoured to exit at Forrester Road and travel north to Evan Hewes Highway east to SR-86/4th Street south to the I-8 connector.
  • Detour for westbound I-8 closures: Westbound traffic will be detoured to exit at SR-86/4th Street and travel north to Adams Avenue/Even Hewes Highway west, to Forrester Road south to the I-8 connector.

The recommended detour maps for the full interchange closure can be found at

Access to businesses and medical facilities will continue via the detour.

The I-8/Imperial Avenue Interchange Project removed the existing bridge and eastbound on- and off-ramps and will reconstruct the structure and the on- and off-ramps in both directions. Construction will include a new entrance loop ramp from southbound Imperial Avenue to eastbound I-8 and create access to the City of El Centro’s upcoming extension of southbound

Imperial Avenue to city areas south of I-8. Project construction began spring 2020 with Stage 1 closures of the eastbound on- and off-ramps beginning that July. Stage 2 closure of the entire interchange began December 2020 with reopening expected late summer 2021. 

For real-time traffic information including traffic speeds, lane and road closures due to construction and maintenance activities, go to

For news related to state transportation in Imperial and San Diego counties, go to the Caltrans District 11 website at:

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