NEW YORK--(BUSINESS WIRE)--The Crown Castle Towers LLC senior secured tower revenue notes series 2015-1 and 2015-2 transaction balance has been increased to $1 billion from $750 million and the allocation of the deal balance between classes 2015-1 and 2015-2 has been finalized at this time. The total trust leverage and updated capital structure is consistent with the expected ratings assigned. Therefore, Fitch's expected ratings and Rating Outlooks remain unchanged as follows: --$300,000,000 cl