CDOT to Make Emergency Repairs to I-70 Frontage Road at Mamm Creek, Exit 94 East of Rifle

On the morning of July 24, an overnight thunderstorm washed out the culvert under the I-70 Frontage Road at the Exit 94 interchange (Mamm Creek) just east of Rifle. The north-side Frontage Road (also known as Garfield County Road 316) serves commercial and private landowners and several natural gas wells.

A temporary access to the frontage road from the I-70 Exit 94 westbound on-ramp is currently being constructed to restore access to private property and a gravel pit west of the washout on the frontage road.

The project will be advertised under emergency contracting procedures early next week. The work will likely involve the installation of three 10-foot by 12-foot concrete box culverts to replace the 10-foot diameter corrugated steel culvert that has failed.

CDOT estimates that the work will cost about $700,000, including maintenance costs and, potentially, right of way costs. Further information will be sent when a contractor has been awarded and a schedule is known—it is expected this project will have a fall completion.

For information on other CDOT projects, the public may log onto www.cotrip.org, call 511 from anywhere in the state, or sign up for text/e-mail alerts by going to www.coloradodot.info and choosing the green cell phone icon in the upper right corner of the page.