SPRINGFIELD, Va. (CBSDC/AP)— Virginia State Police are urging caution for drivers as several accidents have already been reported since the opening of new express lanes on the Capital Beltway.

Monday morning was the first rush hour commute for the new 495 Express Lanes. The 14-mile section runs from the Springfield Interchange to just north of the Dulles Toll Road.

State Police said that as of Monday afternoon, there have already been six crashes since the lanes debuted Saturday. All occurred at the same northbound entrance near Braddock Road.

“We have had cars that lost control, crashed into other vehicles, and some of them ultimately ran off the roadway entirely and ran into the concreted Jersey walls,” says Virginia State Police Sgt. Kerry Allender.

He told 9 News Nows Peggy Fox new signs have been added on the approach of the problematic Braddock Road express entrance that should help drivers’ confusion.

Tolls on the express lanes will vary based on the amount of traffic. The average toll is expected to be between $3 and $6. Drivers must use an E-Z Pass to use the lanes. Carpools of three or more are exempt from the tolls.

(TM and Copyright 2012 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2012 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)