Commerce Street is closed south of Charleston Boulevard as crews install underground storm-drain infrastructure, bringing a fresh traffic disruption to downtown Las Vegas. The city’s closure map lists the closure as in effect 24 hours a day from Sept. 21 through Oct. 19, with dates subject to change.
The work is part of the city of Las Vegas’ Charleston Boulevard Storm Drain project. Drivers should follow signs for detours, not the route they used last week. A temporary two-way section of Commerce Street is planned to maintain access for nearby businesses.
What is closed, and where can drivers go?
The current closure affects Commerce Street on the south side of Charleston Boulevard. The city’s closure and detour map shows the closed segment, signed detour routes and temporary two-way access for businesses. The map gives the closure period as Sept. 21 to Oct. 19, but warns that dates may change.
For east-west travel, drivers are being directed to Oakey Boulevard or Bonneville Avenue. For north-south trips, Casino Center Boulevard or Las Vegas Boulevard are alternatives. Main Street is also open to northbound drivers following completed culvert work at Main and Charleston.
Business access remains part of the plan
Commerce Street is temporarily set up for two-way access between California Avenue and the closure point to help people reach businesses in the area. The city says business and pedestrian access will be maintained throughout the broader project. That does not mean every usual turn or approach will remain open, so check signs near your destination and allow time for a different way in.
If you are meeting someone or making a delivery, agree on a pickup or drop-off point outside the work zone when possible. A little planning beats a last-second turn at a barricade.
One phase of a larger drainage project
The Commerce closure is tied to the Charleston Boulevard Storm Drain project, which extends from Commerce Street to Maryland Parkway. The city’s project page says the work includes about one mile of storm drain, along with sewer and water infrastructure, traffic-signal changes, median construction and new pavement.
The project is intended to reduce flooding. Its construction began Aug. 11, 2025, and the city lists fall 2027 as the expected completion period. The published project cost is $49 million, funded by the Clark County Regional Flood Control District, the Regional Transportation Commission and the city.
The city lists standard construction hours as weekdays from 7 a.m. to 6 p.m., with occasional night and weekend work. Those hours describe the larger project. They do not change the current Commerce closure’s posted 24-hour status.
Keep an eye on changing traffic controls
This is one stage of a project that will continue for months, and traffic restrictions can shift as crews move through different sections. The Commerce closure map has specific dates for this phase, but also says those dates are subject to change. Drivers should use posted signs and check the city’s project information for updates before heading through the area.
Slow down near workers, leave room for other drivers merging around the closure, and give pedestrians extra attention where construction affects familiar paths. Downtown streets are tight enough without adding a surprise detour to the mix. For now, plan around Commerce south of Charleston and follow the marked route.
