The l4d_sv_dam.zip file you have requested: Maps Levels Missions / Survival Maps / L4D God Dam Survival Map - 15.92mb is not available. Perhaps try browsing all files for the game Left 4 Dead and upload any files you want to share or are missing. This is the only information we could locate:
The most uttered phrase in Left 4 Dead by Bill is now converted into a map. Survive against zombie hordes on this huge map set on a dam. What is it with FilePlanet and these dam maps.