UPDATE with environment report, financing details, tariffs structure MADRID (AFX) - A consortium led by Cintra Concesiones Infraestructuras SA said it has signed its first contract to build a section of the Trans-Texas Corridor toll road project in the US and will invest 1.3 bln usd. In a statement, Cintra said the 50-year concession is to design, construct and operate segments 5 and 6 of the SH 130 motorway between Austin and Seguin. The consortium is 65 pct controlled by Cintra and 35 pct by local constructor Zachry. Cintra announced the contract in Dec 2004, and said it expected to...