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The Project

   US 29 at Stewart Lane

The proposed Stewart Lane interchange includes a new overpass on the existing Stewart Lane horizontal alignment. The northbound off/on ramps would be in the northeast quadrant and would tie into Old Columbia Pike. The southbound off-ramp would be combined with the off ramp for MD 650 and Milestone Drive would tie into the southbound on-ramp.

At this time, we are studying a variety of concepts to improve the intersection based on the revised traffic projections and our coordination efforts with adjacent developers.

   US 29 at Tech Road / Industrial Parkway

The current Tech Road interchange proposal, as presented in the approved FEIS, includes a new overpass on the existing Tech Road horizontal alignment. On the east side of US 29, Tech Road would be reconstructed with the new vertical alignment, impacting two driveways. Prosperity Drive would be reconstructed and raised vertically to meet Tech Road, impacting an additional two driveways. The interchange ramps would consist of slip ramps, located away from the overpass. On the east side of US 29, the slip ramps would tie into Industrial Parkway. On the west side of US 29, a slip ramp for access to US 29 southbound is connected to Old Columbia Pike, and would impact the existing Park and Ride lot. No ramp is provided for southbound US 29 to exit at this location. All traffic southbound to Tech Road/Industrial Parkway would exit at Randolph Road and use Old Columbia Pike or Prosperity Drive.

At this time, SHA is coordinating with Montgomery County and the developers in the vicinity of the interchange to consider concepts other than that described above. The development proposed in the area south of Cherry Hill Road and east of US 29 has changed significantly since the time SHA generated future traffic forecasts used to develop the current intersection configuration. Upon receipt of more current data from the developers, additional interchange studies will be performed by SHA.