DENVER -- Commuters coping with a five-year, $1.67 billion construction project on Interstate 25 will be able to get updated information by e-mail and on a Web site run by the project's overseers.

A Colorado Springs company will distribute e-mails to interested residents before morning and afternoon rush hours with updates on traffic volume, accidents and other information about T-Rex, or the Transportation Expansion Project.

They can also sign up for unscheduled e-mail alerts about accidents or other unexpected delays, said Andy Meng, president of Infront Webworks Inc., which developed the Web site, www.trexproject.com.

The site will also include a bus locator that tells where Regional Transit District buses are minute by minute, based on information relayed from onboard transmitters.

Pictures from more than 400 cameras along the 19-mile project will be posted on the site, along with daily and weekly construction updates and a calendar of meetings and other project-related events.

T-Rex spokeswoman Amy Ford said that a survey of more than 1,400 residents last year showed 77 percent would use the Internet to get information on the construction.

Meng said that the T-Rex site has separate channels for traffic conditions, construction updates and other information. Users can customize their access to the site so they get only the channels they're interested in when they log on.

T-Rex is a joint project of the Colorado Department of Transportation and RTD. It will widen Interstates 25 and 225 and extend light rail southeast on I-25 for 19 miles and on I-225 to Parker Road.

Construction is scheduled to begin Oct. 14.