Construction Activities

Katella Avenue Construction Updates – Plan Ahead, Expect Delays

Construction is underway and generally occurs Monday through Friday, from 6 a.m. to 4 p.m. Intermittent night work, typically between 9 p.m. to 5 a.m. may be required for certain activities.

Westbound Katella Avenue Activities
Utility relocation is underway and will continue for several months before crews begin reconstructing the sidewalk later this year. Motorists should note that the outside lane on westbound Katella now leads directly onto the I-605 north on-ramp. Signs are in place to help guide motorists to the on-ramp.

Eastbound Katella Avenue Activities

The outside lane on eastbound Katella is closed and temporary concrete barriers were installed. Crews have started demolishing the sidewalk in preparation for the construction of a new bike lane.

Sidewalk Access

Sidewalk access on westbound Katella is closed. Signs are in place detouring pedestrians and cyclist to use the sidewalk on eastbound Katella Avenue, which will be maintained during construction.

Click the image below to view a larger version of the pedestrian detour.

Retaining Wall Construction

Crews have started construction on the first of the three retaining walls on westbound Katella Avenue within the Coyote Creek Channel. The cast-in-drilled-hole (CIDH) piles were installed at the end of September to form the foundation of the new wall. The foundation piles will undergo testing before crews begin building the footing for the new wall.

Closures and Detours

Please plan ahead and expect delays during these times. Nighttime closures typically occur between 9 p.m. to 7 a.m. Specific closures for the week of Sept. 29 include:

• Outside lanes on eastbound and westbound Katella Avenue/Willow Street, at least one lane will be open to traffic at all times
• Northbound I-605 on-ramp from eastbound/westbound Katella Avenue - click here to view detour
• Northbound I-605 loop and straight off-ramps to eastbound and westbound Katella Avenue - click here to view detour
• Southbound I-605 loop off-ramp to eastbound Katella Avenue - click here to view detour
• Southbound I-605 loop and straight on-ramps from Katella Avenue - click here to view detour

This work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.

Rendering of Improvements along Katella Avenue

The rendering above highlights planned improvements along Katella Avenue between Coyote Creek Channel and Epson Way. Key features include:

• Reconfiguration of the northbound on- and off-ramps into a T-intersection
• Addition of Class II bike lanes with hatched markings to indicate bike lane transitions
• Installation of a new traffic signal at the northbound I-605/Katella Avenue off-ramp, along with upgraded signals at nearby intersections
• Painted crosswalks and newly constructed sidewalks to enhance pedestrian access and safety

Community Outreach

As part of its comprehensive public awareness campaign, the Public Outreach team is offering opportunities for the community to learn more about the project, its benefits, construction activities, and potential impacts. These include:

• Public webinars
• Neighborhood meetings
• Project briefings and presentations
• Project booths at community events

Construction Closures & Detours