Flopped straight but did I get enough value?

So I flopped the nuts and bet out but I didn't want to lose either player. Is there any way I could have extracted more value?

http://www.pokerhand.org/?911628

Should I have 3bet the flop? I decided to just call in the hope that rakearde would come along.

Comments on all streets welcome.

you only bet 2/5 the pot on the turn. i like the lead out instead of the c/r, but i would have bet about 7.50
if both players call pot is 25 on river and u can bet 15 expecting two more calls-now youve made an extra 34bb on this hand.