Commuters rejoice! After six years of construction, the Interstate-69 Southwest/Interstate 610 West Loop Interchange project is done. The Texas Department of Transportation officially cut the ribbon opening the interchange on Thursday.

“TxDOT collaborated with many regional partners to bring this project to completion,” said TxDOT Houston District engineer Eliza Paul at the ceremony. “Working with the City of Houston, the City of Bellaire, and Harris County Flood Control, we were able to build this project while being responsive to the needs of our neighbors.”

The new interchange expands the connectors between the two freeways from one-lane to two-lanes. The narrow connections are the greatest contributors to the slowdown of traffic as commuters on the 610 loop try to merge onto the Southwest Freeway. These congested pathways can slow traffic down for miles.

In addition, new access ramps were added, as were shoulders, plus some vertical clearances were raised. Overall, the project cost $259 million, according to a release.

Parts of the project have been open since 2023, though there is debate whether it has done much to eliminate traffic at Houston’s busiest interchange. Not only does that part of 610 border some of the city’s most prestigious shopping areas, it is a prime inlet to the Texas Medical Center. During rush hour, traffic can easily double normal drive times.

Despite naysayers, the people behind the project feel it will be a great success at alleviating congestion.

“Traffic congestion affects every aspect of our lives — That is why the Texas leadership, the Transportation Commission, and TxDOT are committed to addressing this significant issue,” said TxDOT executive director Marc Williams. “By improving our infrastructure, we are not only enhancing the quality of life for Texans, but also driving economic growth and supporting a sustainable future for our state.”

One enormous benefit to the project was the installation of massive retention ponds directly below the interchange. Over the past two decades and several hurricanes, improving the flood drainage system has become an integral part of new construction.

In the interchange’s case, this includes four pump stations and a series of underground pipes that can hold flood waters and release them when the system is not overloaded. With the addition of extra projections as part of the interchange project, the area is better able to weather the next storm.