Zain Saeed

For Defining Modulus of Subgrade in SAFE see the 1st pic in attachment As in the figure you uploaded for punching shear results it is clear that u are getting values of the ratio more than 1 which is not oK ..As far as the 5' thickness u have specified for this Raft is too much ..Kindly check the Loadings in ETABs

The load combination file u have uploaded is missing on 4shared , the link u mentioned kindly mention it once again

Piles can be designed using a very popular software PCACOL

Basement wall design spread sheet BasementRetainingWall.xlsx

U can design the retaining walls easily with a software named as QuickRwall Or u can use the spreadsheet as attached BasementRetainingWall.xlsx

For interpreting the ETABs Results see the 1st picture in Attaachment As far as choosing a torsional constant for a member see the second doc. in attachmetns Torsional Constant for Beams in ETABs .docx

WaoOO Its near my Town Yup the Bridge undergone Servicebility Failure long time ago and the middle pier is settling from time to time as the scour is happening, when there is good amount of water flowing around its pier.