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TxDOT will open the Parmer Lane Bridge, shown here under construction in July, with a new traffic pattern on October 9th. (Courtesy of the Texas Department of Transportation)
Motorists traveling in North Austin should watch out for road closures on the night of October 8th as state crews prepare to open the Parmer Lane Bridge over I-35 with a new traffic pattern.
The Texas Department of Transportation announced in a October 8 press release that Parmer Bridge would be closed to traffic on October 8 at 8:00 p.m. While the bridge is closed, traffic will be diverted to U-turns on Howard Lane or Yager Lane.
According to the press release, the bridge will reopen at noon on October 9, weather permitting.
The bridge will open with a new traffic pattern called the Divergent Diamond Crossing, or DDI. A TxDOT factsheet on Parmer Lane DDI states that the new traffic pattern will temporarily shift traffic to the left side of the lane before cars enter the intersections on either side of the bridge.
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Drivers who want to continue east or west after crossing the bridge on Parmer will be pushed to the right again after exiting the DDI. Drivers who want to drive onto I-35 are pushed to the left before entering the bridge and leave the DDI after crossing the bridge to the left.
According to TxDOT, new front road patterns were also built on Parmer at the I-35 intersection. Bypass lanes have been added in each direction, allowing drivers heading north and south on the I-35 front road to completely avoid stopping at the intersection.
For drivers who want to continue on Parmer in an easterly or westerly direction, the traffic will be shifted to the left side of the bridge and then to the right again after leaving the DDI. The passage at the intersection has been removed for drivers from front roads, which means that drivers using the front roads who do not use the bypass lane will have to turn left or right in Parmer.
TxDOT said in its press release that the police will be on site all weekend to direct traffic through the DDI on the Parmer Bridge.
For more information on driving through a DDI, please visit this TxDOT website.
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