Driving down Colorado highways, you can still disappear — the state recently lost 136 surveillance cameras — but the system covers at least 1,000 of the 9,100 miles as transportation officials push to provide certainty about road conditions and monitor traffic.

More than 1,000 cameras scan highways statewide – some can “see” as far as three miles — streaming images available to anyone using COtrip.org , a Colorado Department of Transportation smartphone app. That’s separate from a growing network of photo radar cameras that measure speed.

CDOT officials describe their video surveillance as a backup for the road and weather information already available to travelers via the app and CDOT’s publicly-accessible network of weather stations around the state.

“Our goal is to provide

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