72404
510,000 cubic yards ( 390,000 m ³ ) of concrete were used in the construction of Pensacola Dam , poured 24 hours a day in just 20 months with depression-era labor .
 Pensacola Dam
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Pensacola Dam