CLEAR CREEK COUNTY, Colo. (CBS4) – CDOT says the I-70 Mountain Express Lane is making a difference for drivers in the high country.

The lane between Empire and Idaho Springs has been open for two winter and two summer seasons now.

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This summer, it was open a total of 31 days.

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In that time, more than a million vehicles used it. That’s a 2% increase from last summer.

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The average toll was between $5 and $6.