Anyone who frequently travels through the Routes 22/145 interchange might want to mark their calendars.
Lane restrictions on both roads are coming late at night on Aug. 20 around the interchange in Whitehall Township, just north of Allentown, and will continue until Aug. 21.
And anyone traveling east on Route 22 who wants to go north on Route 145 will face a permanent change.
Expect delays and use caution driving through the work zones, warn spokesmen for the state Department of Transportation.
Lane restrictions will occur on Route 22 both east and west between 15th Street and Fullerton Avenue beginning at 10 p.m. Aug. 20 through 6 a.m. Aug. 21.
Those traffic restrictions will allow workers to safely move concrete barriers, paint lines and implement new travel lane configurations as the project enters the fourth of five phases.
Lane restrictions also will occur on Route 145 north and south between Grape Street and Fairmont Avenue from 10 p.m. Aug. 20 through 6 a.m. Aug. 21, while workers shift the Route 145 north travel lanes from their current location in the eastern side of the bridge to the new section at the center of the bridge.
The lane restrictions originally were scheduled for Monday and Tuesday of next week.
Also on the evening of Aug. 20, the existing Route 22 east ramp to Route 145 north will be closed. All eastbound Route 22 traffic will use the same ramp to access Route 145 both north and south. This will be the permanent configuration change for eastbound Route 22 traffic accessing Route 145.
The $13.8 million Route 22/145 interchange project began in May 2012 and should be completed by December, if the weather cooperates. It includes reconstruction
of Route 145 (MacArthur Road) in the area of the interchange, replacing the bridge over Route 22,and building new interchange ramps.
The interchange is being reconfigured to eliminate the current merging movements on the Route 22 on/off ramps by replacing the cloverleaf interchange with a diamond interchange.
Other improvements include new traffic signals on Route 145 at the interchange ramps and constructing a wider and taller Route 145 bridge over Route 22.
The project is designed to improve traffic flow for the 87,000 vehicles traveling Route 22 and the 38,000 vehicles traveling Route 145 each day.
For more information on all five phases of the project, visit the website for the Route 145/22 Interchange Improvement Project. It contains information on the status of the project, feeds from Route 22 traffic cameras near the interchange, and allows the public to sign up for email updates.