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I-35W in north Fort Worth lands two spots in Top 10 most congested roadways in Texas

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Interstate 35 in north Fort Worth landed the No. 6 and No. 9 spots on the latest Texas A&M Transportation Institute report on the top 100 congested roads in Texas.

For the full report:

The Texas Tribune story on the study is below: 

Austin drivers who complain about Interstate Highway 35 have been validated. 

A new report from the Texas A&M Transportation Institute named the stretch of I-35 between U.S. 290 N and SH 71 as the most congested roadway in Texas. 

The annual report of the top 100 congested roadways in the state — commissioned by the Texas Department of Transportation — called a stretch of Houston’s I-610 the second-most congested roadway (it was No. 1 last year and I-35 in Austin was No. 2). Two separate sections of U.S. 59 in Houston and a portion of I-35 E in Dallas round out this year’s top five. 

“The state’s worsening traffic gridlock is driven largely by a rapid growth in population without a corresponding growth in roadway space,” the institute said in a news release. 

The rankings, released late last month, are based on the amount of delay caused by traffic on each road. Institute researcher Tim Lomax said 29 new roads were added to the list this year, but he said “the worst congested roads are probably going to stay the worst congested roads.” Nearly all of the top 20 congested roads made the top of the list last year, but a few moved around in the rankings. 

Lomax said the institute used information from traffic data company Inrix, which collects speed information through partnerships with trucking companies, a traffic-monitoring phone application and tracking devices put into some vehicles by manufacturers. The institute combines that speed information with TxDOT maps to find the most congested areas.  

The Houston area has the most roadways on the list — 38 — at an estimated cost of $2.87 billion. The Dallas-Fort Worth metroplex is the second most congested with 34 roadways on the list but a higher cost of $2.94 billion. Austin has 11 roadways on the list at a cost of $975 million, San Antonio has 14 at $800 million, and El Paso has three at $240 million. 

Lomax said the average cost of $17.67 per commuter hour factors in gas cost, toll roads, number of people affected and time value. He said time value is related to how quickly drivers need to get to their destinations.   

Lomax said there are plans to address congestion in many of the listed roadways, but he said in general, Texas needs to add more capacity as the state increases in population.   

“That could be both road and transit,” Lomax said. “We definitely need to operate the system as efficiently as we can, so timing the traffic signals [and] getting those stalled vehicles or crashes out of the way as quickly as possible [is] really important.” 

Texas voters on Nov. 3 overwhelmingly approved a constitutional amendment to boost funding for road projects. Under Proposition 7, the state will dedicate some taxes collected on car sales for the State Highway Fund, which is used to maintain and construct public roadways and bridges and decrease transportation-related bond debt.  

Disclosure: Texas A&M University is a corporate sponsor of The Texas Tribune. A complete list of Tribune donors and sponsors can be viewed here. 

This article originally appeared in The Texas Tribune at

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