(abbreviated '''I-25''') is an Interstate Highway in the western United States . Its odd number indicates that it is primarily a north-south highway. It goes from Interstate 10 at Las Cruces, New Mexico to Interstate 90 in Buffalo, Wyoming .
Bolded cities are officially-designated Control Cities for signs.
- Interstate 10 to Sunport Blvd, Albuquerque (#221) - 2 lanes
- Sunport Blvd (#221) to Lead Ave (#224) - 3 lanes
- Lead Ave (#224) to Paseo del Norte (#232) - 4 lanes
- Paseo del Norte (#232) to Tramway Blvd (#234) - 3 lanes
- Tramway Blvd (#234) to US 550 (#242) - Under Construction, being expanded to 3 lanes
- US 550 (#242) to NM 16 (#264) - 2 lanes
- NM 16 (#264) to Exit #267 - 3 lanes northbound, 2 lanes southbound
- Exit #267 to Colorado state line - 2 lanes
- New Mexico state line to S. Circle Drive exit, Colorado Springs (#138) - 2 lanes
- S. Circle to Fillmore St (#145) - 3 lanes except under Bijou St bridge (2 lanes)
- Fillmore St(#145) to Founders Pkway, Castle Rock(#184) - 2 lanes
- Founders Pkway, Castle Rock(#184) to Lincoln Ave, Denver (#193) - 3 lanes
- Lincoln Ave to 225 exchange (#200) - 5 lanes
- 225 exchange to #212 - 3 lanes (more lanes under construction; this is currently coinciding with the construction of a new Light Rail Line as part of the )
- #212 US-36: 4 Lanes
- US-36 to SH 52/Dacono (#235) - 3 Lanes
- SH 52 to Wyoming state line - 2 lanes
- 75 mph (120 km/h) except:
- 65 mph (100 km/h) through Las Cruces
- 70 mph (110 km/h) from the town of Bernallio to Albuquerque
- 65 mph (100 km/h) through Albuquerque, with a small section at 55 mph (90 km/h)
- 75 mph (120 km/h) except:
- 65 mph (100 km/h) through the towns of Trinidad and Pueblo, with a few sections at 50 mph (80 km/h)
- 55 mph (90 km/h) through the city of Colorado Springs (45 in construction zone, Jul 2005-Dec 2006)
- 55 mph (90 km/h) through sections of Denver
- 75 mph (120 km/h) except:
- 60 mph (96 km/h) through Cheyenne and Casper
- The I-40 and I-25 interchange in Albuquerque, New Mexico was given an honorable mention by the United States Department Of Transportation and the Federal Highway Administration for excellence in urban highway design in 2002 . {Link without Title}
- It is the main north-south highway through Colorado , passing through Cheyenne, Wyoming , near Fort Collins, Colorado , through Denver, Colorado , Castle Rock, Colorado , Colorado Springs, Colorado , Pueblo, Colorado and over Raton Pass into New Mexico . The I-25 corridor in Colorado is heavily urbanized, passing just east of the Front Range of the Rocky Mountains . This stretch is currently involved in a massive renovation named T-REX EXpansion) in Denver, and COSMIX [http://www.cosmixproject.com/ (Colorado Springs Metro Interstate Expansion) scheduled to begin in August 2005.
- The section between Romeroville, New Mexico and Los Lunas, New Mexico closely follows the original alignment of U.S. Highway 66 , which was later shortened and realigned to run straight west from Santa Rosa , now replaced with Interstate 40 .
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