occurred as a result of Interstate Highway construction. The alternate route was expanded to a divided highway on either side of its interchange with I-695 when that interchange was constructed between 1956 and 1958. This interchange included all of the ramps on the east side of the interchange, but, on the west side, it also included ramps from southbound US 1 Alt. to westbound I-695, from southbound US 1 Alt. to eastbound I-695, and from eastbound I-695 to Sulphur Spring Road, which passed closer to the Interstate than it does now. The I-695–US 1 Alt. interchange was reduced to its present ramps after the I-95–I-695 interchange, including that interchange's ramp to relocated Sulphur Spring Road, was completed in 1971. Most of the Caton Avenue portion of US 1 Alt. was expanded to a divided highway in 1972 in conjunction with the completion of the western half of I-95's interchange with US 1 Alt. The eastern half of the I-95 interchange was completed in 1977 when I-95 was extended east to Russell Street. Junction list See also References External links MDRoads: US 1 Alternate 01 Alternate (Baltimore, Maryland) 01 Alternate (Baltimore) 001 Alternate Baltimore Roads in Baltimore Alternate (Baltimore, Maryland)