Find frontage street polyline given a street address

[SimonDPalmer]

Hi, I have an app whereby users select parcels of land based on shapefile information. How can I return the associated street polyline location (lat, long)? I want to be able to locate the center of the street and its extents in front of this parcel. Refer to the image below the parcel is in blue and the street polyline I am interested in is in red.

If I could be pointed towards which Esri javascript method or class I could use then I can figure out the rest 

Any help would be greatly appreciated!