Current Road Closures and Traffic Impacts

Published on January 01, 2026

Montclair is currently undertaking several infrastructure improvement projects that may result in temporary road closures, lane restrictions, detours, parking restrictions, and other travel impacts.

This page provides a centralized resource for current and upcoming roadway work involving the Township, PSE&G, utility providers, contractors, and other project partners. Residents directly affected by construction will also receive advance notice through door hangers, mailed notices, or other project-specific communications.

Important: All construction schedules are subject to change based on weather, field conditions, emergency repairs, and contractor operations, which may change at the last minute.  Temporary road closures, detours, and traffic impacts may occur on streets not listed below.

The table below provides a consolidated overview of scheduled construction activities and roadway work currently taking place throughout Montclair. Locations and schedules are subject to change based on weather, field conditions, emergency repairs, and contractor operations.

Looking for more information about the projects? Detailed descriptions of each construction project, including work schedules and project updates, can be found below.

Upper Mountain Ave Street Safety Improvements

Montclair Township will begin roadway improvement work on Upper Mountain Avenue between Watchung Avenue and Bellevue Avenue on or about June 15, weather permitting, to bring much-needed streety safety improvements. Residents should anticipate the full closure of Upper Mountain Avenue along this stretch during construction. If someone needs to access the project area during work hours, they can speak to the on-duty officer and they will generally allow local traffic and delivery vehicles as appropriate. 

The project includes restoration of existing concrete curbs, driveway aprons, and ADA curb ramps, as well as installation of new drainage improvements. 

For additional details and project information, please see the full construction notice: Construction Notice - Residents of Upper Mountain Ave. Township officials will be hand delivering this notice to residents between Watchung Ave & Bellevue Ave the week before the project.

Original notice of the project was emailed and posted on the township social media and the website here.

PSE&G

Milling & Paving (beginning June 16)
PSE&G and contractors will be performing roadway restoration work throughout the township following previous utility improvements. This work includes milling (removal of existing pavement) and paving operations on various streets. PSE&G has been handling resident notifications for this project via door hangers, robocalls, and emails. 

Click here to see what streets will be affected: PSE&G Milling and Paving Schedule - June and July 2026

Gas Line Services & Repairs (Ongoing)
PSE&G has begun a gas system modernization project in Montclair, which will involve replacing aging cast iron gas pipes with new, durable plastic, and/or coated steel piping. Work will take place Monday through Friday form 7:00 AM - 5:00 PM. PSE&G technicians will contact the homeowner directly to give notice when work will begin. The information below is based on the latest correspondence from PSE&G's contractors, but is subject to change. 

• Upper Mountain Ave (Mt Hebron Rd)
  When: Monday, June 15 to Thursday, June 18
• Valley Rd (Mt Hebron Rd & Alexander Ave)
  When: Monday. June 22 to Friday, June 26

Upper Mountain Ave Water Line Replacements

Beginning on or about May 18, 2026, a crucial water utility project to replace aging water lines will begin on Upper Mountain Avenue between Bloomfield Avenue and Berkeley Place. 

The water mains along Upper Mountain Avenue have experienced water main breaks in recent years. This section of the system is part of a high-pressure zone, meaning a major break in this area has the potential to impact water service for approximately two-thirds of the Township. Replacing these aging mains is intended to improve system reliability, reduce the risk of future breaks, and protect the community’s water supply. Click here for more information about the project.

Specific roadwork schedules, including affected streets and anticipated work dates, will be posted below as they are provided by the contractor.

• Upper Mountain Ave (Alpine St to Claremont Ave)
  When: Monday, June 8 - Friday, June 12

• Upper Mountain Ave (Van Vleck St to Claremont Ave)
  When: Monday, June 15 - Friday, June 19

• Alpine Street & Bloomfield Ave
  When: Monday, June 22 - Friday, June 26

Sanitary Sewer Improvement Project

The Township will be initiating a sanitary sewer improvement project in Zone U of the Sewer System of the sewer system beginning on or about Monday, April 13, 2026.  Residents impacted by construction activity will be notified directly by the contractor in advance. Click here for more information about this project. 

Specific roadwork schedules, including affected streets and anticipated work dates, will be posted below as they are provided by the contractor:

Week of June 15 - June 19:

• Carolin Rd: June 15
• Wildwood Ave: June 16 - June 17
• Wildwood Ave & Grove St: June 18
• Carolin Rd & Grove St: June 18
• Summit Ave: June 19

Essex County - Traffic Signal Modernization & Roadway Improvements

The Essex County Department of Public Works will begin construction to modernize traffic signals and roadway improvements at the following intersections. The project is anticipated to begin on Monday, June 22. Residents can read the full notice here.

• Valley Rd & Normal Ave
• Valley Rd & Mount Hebron Rd
• Watchung Ave & Grove St
• Watchung Ave & Ridgewood Ave (Glen Ridge)