Reading FAA Charts

[Scottler]

I've downloaded and printed several of the FAA Airport Diagrams from AOPA (taxiway charts, not ILS charts), and I've got a question about a few of the markings.

For example, on the LAX chart (AL-237), it's got-on the bottom left corner:

Rwy 6R ldg 9954'
Rwy 25R ldg 11,134'

RWYS 6L-24R, 6R-24L, and 7R-25L
            S175, T225, ST175, TT400, DDT900

RWY 7L-25R
         S175, T225, ST175, TT210, DDT900

What are these numbers?  I know it's not the length of the runways, because the length of 6R is 10,285 (it's marked beside the runway)...can anyone help?

Thanks!