Driving Arapahoe County means knowing the toll and express lanes

Getting around Arapahoe County and the wider Denver metro often means a choice between free lanes and paid ones. It helps to know there are two different systems. E-470, the toll road along the east side of the metro, is run by its own public agency, the E-470 Public Highway Authority — not by the state. Express lanes that run alongside the regular lanes on several state highways are managed by the Colorado Department of Transportation, or CDOT.

A couple of things are worth understanding before you drive them. On the express lanes, the price is not fixed. Pricing changes with the time of day or with live traffic, so the cost can be higher at rush hour than midday. And on both systems, if you drive without a pass, you do not stop at a booth. A camera reads your license plate and a bill is mailed to the registered owner, usually at a higher rate than a pass holder pays.

This matters most for newcomers and visitors. It is easy to drift into an express lane or onto a toll road without realizing a charge is coming, then be surprised by a bill weeks later. Knowing which lanes are tolled, and whether a pass makes sense for your commute, saves money and confusion.

This note lists no prices, because they change and vary by route. For how the express lanes work and their pass options, check CDOT’s express lanes pages. For E-470 tolls, passes, and billing, go to the E-470 Public Highway Authority’s official site.