What caused slow progress during the construction of the transcontinental railroad

Explanation:competition between railroad companies contributed to slowed down progress of the transcontinental railroad

Explanation:

There were more than one factor that slowed the progress of building the transcontinental railroad.

The first is that there were not that much people to hire. The reason for this is that many workers were killed by harsh weather, such as avalanches or even rockslides. Also, there were not that much workers because the pay was low.

The second is that sometimes the prospectors(people that working) would have to blow up the part of the mountain that was in their way. Sometimes, this would result in death or severe injury.

after the french-indian war.