 Shiban originally wanted to film the sewer scenes in Los Angeles ' actual sewer system , but the Los Angeles Department of Water and Power vetoed the idea and stated that " there 's a moratorium on shooting there since September 11 " , a position that Shiban called " understandable . " In order to make up for this , series art director Corey Kaplan was tasked with building a sewer replica ; she used the blueprints from the 1952 version of Les Misérables as an inspiration . Eventually , a complete set was built on Stage 11 at the Fox studios . 
 Shiban originally wanted to film the sewer scenes in Los Angeles <a href='null_genetive' title='1'><mark>'</mark></a>actual sewer system , but the Los Angeles Department of Water and Power vetoed the idea and stated that " <a href='dey_it' title='2'><mark>there</mark></a> 's a moratorium on shooting there since September 11 " , a position <a href='null_relcl' title='3'><mark>that</mark></a>Shiban called " understandable . " In order to make up for this , series art director Corey Kaplan was tasked with building a sewer replica ; she used the blueprints from the 1952 version of Les Misérables as an inspiration . Eventually , a complete set was built on Stage 11 at the Fox studios . 
Shiban originally wanted to film the sewer scenes in Los Angeles  actual sewer system , but da Los Angeles Department of Water and Power vetoed tdaidea and stated dat " it 's a moratorium on shootin there since September 11 " , a position Shiban called " understandable . " In order to make up fir this , series art director Corey Kaplan was tasked with building a sewer replica ; she used thdalueprints from the 1952 version of Les Misérables as an inspiration . Eventually , a complete set was built on Stage 11 at the Fox studios .