Sound Study Documents

The following documents were provided by the Jefferson Parkway Public Highway Authority and detail the findings of a sound study showing how Parkway noise may affect Leyden Rock. 

Map showing route of Parkway through Leyden Rock

Map showing sections of roadway

Cross section of roadway segments

Sound impact figures

Showing effect of 6-foot barriers

Showing effect of 8-foot barriers

Showing effect of 10-foot barriers

Showing effect of 20-foot barriers

Showing sound impact without barriers

Barrier height figures in spreadsheet format