The Colorado Department of Transportation says it will release its much-criticized contract with a private firm to operate U.S. 36 between Denver and Boulder for the next 50 years.

The department says the contract will be posted on its website Friday. It wasn't previously available to the public.
The deal, which is expected to be final soon, calls for a consortium of private enterprises called Plenary Roads Denver to spend $425 million to add toll lanes to the highway. The consortium would then collect all the tolls and maintain and plow the highway for 50 years.
State lawmakers and the public have sharply criticized CDOT for the secrecy surrounding the deal.
Lawmakers wanted 60 days to review the contract, but CDOT says it needs to close the deal sooner.