On the 35 miles of light rail already open, daily ridership is close to the 2020 projected daily ridership. There are another 34 LRT vehicles on order for this existing 35 miles of track - which should further boost the daily capacity significantly and thus boost the daily ridership numbers. There is also another LRT line of 11.1 miles due to open in 2014. This is the West Corridor LRT line and it will be the first new line to open as part of the massive FasTracks system. This line also has an additional 34 LRT vehicles on order.
Here is a graph showing the top 10 systems of this type in the USA. Denver appears to be positioned to leapfrog Dallas and Saint Louis and be in position to challenge Philadelphia in LRT ridership by 2015. By 2017 and the completion of FasTracks, Denver will probably have surpassed Philadelphia as well.