Interstate 270 Colorado

• • Summary of I-270 in Colorado:**

I-270 serves as a crucial east leg of Denver's loop system, connecting major highways such as I-70, I-76, US 36, and I-25. Its construction began in the mid-1960s, with phases completed by the late 1990s, each segment facing significant costs adjusted for inflation.

Originally planned as I-25E, the designation evolved to I-225 before being split into I-425 and later renamed I-270 in 1959. The freeway was built in three phases: from I-70 to Vasquez Boulevard (1968), extending to I-76 (1970), and finally connecting to I-25 (1999).

Improvements include bridge replacements over Washington Street and Clear Creek, along with new ramps. However, some access points remain unconstructed.

Future plans involve widening I-270 by 2025, supported by Senate Bill 17-267, which includes toll lanes. CDOT prioritizes this project but faces budget challenges due to the COVID-19 pandemic.