West Sacramento completed a project to replace the freeway with a pedestrian-friendly street initially named Tower Bridge Gateway.

[2] After the Jefferson Boulevard interchange, the road — now maintained by the city of West Sacramento as Cabaldon Parkway — crosses the new Grand Street at an at-grade intersection.

This intersection replaced a partial trumpet interchange, oriented towards West Capitol Avenue with a missing westbound entrance, in 2007.

A westbound offramp formerly led to West Capitol Avenue and 3rd Street, with eastbound access to Broderick to the north and the formerly industrial area to the south, now containing Sutter Health Park.

This highway, which included the several-mile-long Yolo Causeway, connected Sacramento with the north–south Route 7 at Davis, thereby linking the capital city with the San Francisco Bay Area.

[5][6] The state highway was moved to the M Street Bridge in 1926, as part of an improvement that also took it through a two-lane subway under the Sacramento Northern Railroad, still present on West Capitol Avenue.

[12] Since the southerly bypass had not been completed in time for the 1964 renumbering, the route over the Tower Bridge — and along downtown streets — became Route 80,[13] but US 99W signage remained (initially following Capitol Mall to near the State Capitol, later turning south onto 3rd and 5th Streets east of the bridge)[14][15] until the late 1960s,[16] before I-5 had finished replacing old US 99W north of Woodland.

[24] The Triangle redevelopment happened slowly, with the first part — Raley Field (now Sutter Health Park) — opening in 2000.

[27] The city of Sacramento also wished to modify its section of SR 275, which, while not a freeway, was still designed for motor vehicle traffic.

[30] The ramp's counterpart, from L Street to the Tower Bridge, remained open, though the lot that includes it was sold to the Sacramento Housing and Redevelopment Agency in 2005.

[31] The ramp finally closed to traffic in 2016 in conjunction with a project to connect 2nd Street in Old Sacramento to Capitol Mall.

[33] A second phase to convert the remaining section of freeway of Tower Bridge Gateway to a city street began in 2010.

Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, based on the alignment of Route 80 as it existed at that time, and do not necessarily reflect current mileage.