Interstate 364 Missouri

Overview

Missouri Highway 364 is the Page Avenue Extension, a freeway running west from Interstate 270 at Maryland Heights to I-64 through the St. Charles County suburbs. The numbering corresponds with Interstate 64 to the south, but is otherwise coincidental. No plans are in place to add Highway 364 to the Interstate Highway system.

Mileage by State

Missouri

21.38 mi

Data Sources

MoDOT HPMAP. https://traveler.modot.org/hpmaps/

History

The first phase of Highway 364 built was the Veterans Memorial Bridge over the Missouri River, which opened on December 13, 2003.¹ East from the Veterans Memorial Bridge to Interstate 270, Highway 364 is officially designated as the "'Buzz' Westfall Memorial Highway," which honors the former St. Louis County Chief Executive who had died before Phase I of the freeway opened.²

The freeway was lengthened west to Mid Rivers Mall Drive in St. Peters on August 30, 2012. Work on the remainder of Highway 364 west to I-64 at Lake St. Louis commenced in 2013. The roadway opened fully on November 1, 2014.³

References

1. "Snow is Already Halting Traffic on Bridge - and it's Not Even Open Yet." St. Louis Post-Dispatch (MO), December 13, 2003.
2. Dowd, Brian. Personal email. "Mo Highway notes." November 22, 2004.
3. "Ceremony to mark opening of Route 364/Page Phase 3." St. Louis Post-Dispatch (MO), October 29, 2014.