I live in west TX and just returned from a Colorado trip. Yup, the construction traffic in Dalhart is terrible, the whole town is torn up right now. Plus the hills around Raton Pass kill your fuel mileage and time.
Let me suggest an alternate route that worked very well for us last week. NB out of Amarillo, take 287 through Dumas. You continue north through the Oklahoma panhandle. In Lamar Colorado turn straight west on US 50 to Pueblo, where you pick up I-27. This route only adds about 20 miles to the trip and I got considerably better fuel mileage and made better time. By avoiding the mountains around Raton, I maintained 10.1 mpg and just left the cruise control set on 65 the whole way. I will never go through Raton and Dalhart again.
2006 Chevrolet 2500HD CCSB Duramax/Allison
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