SAO PAULO, Dec 12 (Reuters) - Brazilian transport

infrastructure operator CCR won an auction on Thursday to

operate highways in southern Parana state for 30 years,

proposing a toll road tariff discount of 26.6%, according to an

announcement from Brazil's B3 stock exchange.

The concession includes 570 kilometers (354 miles) of

highways and is expected to require investment of some 10

billion reais ($1.7 billion).

CCR beat out competitors Patria and Grupo

EPR, as well as a consortium formed by asset managers 4UM and

Opportunity.

($1 = 6.0275 reais)