George try following this link

http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=dakhira+qata...

That will help you to get to Al Dhakira.

Directions would be something like

1. Take the highway heading to Al Khor
2. Pass Al Khor town, then pass the Al Khor Community Housing Complex (Rasgas & Qatargas)
3. Keep driving until the next town
4. You have reached Al Dhakira

Regards!!