California State Route 87

State Route 87 (SR 87), known as the Guadalupe Freeway or referred to by the locals as Highway 87, is a north–south state highway in San Jose, California, United States. Before being upgraded to a freeway, it was Guadalupe Parkway (and some signs still refer to it that way).

For most of its length, especially in Downtown San Jose, the highway follows the course of the Guadalupe River. Its southern terminus is at SR 85, and its northern terminus is at U.S. Route 101 (US 101) just north of San Jose International Airport. Unusually, it crosses over Interstate 880 (I-880) without an interchange.

The route is almost entirely within the city of San Jose, California. A very small portion between the Curtner Avenue exit and the Capitol Expressway Auto Mall exit is in unincorporated Santa Clara County.

SR 87 initially had 2 lanes in each direction for its entire length. Carpool lanes were added north of Taylor Street in 2005 and the remainder of the freeway in 2007.

SR 87 begins at SR 85 in southern San Jose. VTA light-rails run parallel to this freeway from SR 85 to I-280. After intersecting CR G21, SR 87 runs through a small pass in Communications Hill. SR 87 intersects I-280 in southwestern Downtown San Jose, then runs parallel to the western border of Downtown San Jose. SR 87 then runs east of the Mineta San Jose International Airport before terminating at US 101 in northwestern San Jose. This route is unconstructed from US 101 to SR 237 in Santa Clara, legislatively defined to run north from US 101 through suburban San Jose and Santa Clara, terminating at SR 237, as this route is defined as (a) Route 85 in the vicinity of Santa Teresa Boulevard to Route 101 in the vicinity of Guadalupe River and (b) San Jose easterly of Route 101 to Route 237.

SR 87 is part of the California Freeway and Expressway System, and is part of the National Highway System, a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration. In 2014, SR 87 had an annual average daily traffic (AADT) of 88,000 at US 101, and 176,000 between I-280 and CR G8, the latter of which was the highest AADT for the highway.

Unusually, SR 87 crosses above I-880 without an interchange. This is the only spot in California where two freeways cross without any connecting ramps. Located between Taylor Street and Skyport Drive, the site where the two freeways cross has two restrictions that prevent the construction of any connecting ramps. First, because of its proximity to the runways at San Jose International Airport, any elevated ramps running above the SR 87 mainline would interfere with flight paths. Second, tunneling underneath would leave a significant environmental impact on the nearby Guadalupe River. Drivers from SR 87 to I-880 and vice versa have to use First Street, Taylor Street, and Coleman Avenue to get on the freeways.

The SR 87 Bikeway is a 4.1-mile-long (6.6 km) pedestrian and bicycle path that runs alongside portions of SR 87. The path was constructed by Caltrans as part of the final phase of the SR 87 project. It opened to the public on September 1, 1993. The north end of this path is at Willow Street (north of the Alma Street exit). The south end is at the 87-85 interchange.