Site cleanup and monitoring is ongoing, and is funded by the Hassayampa Steering Committee, which consists of 12 of the major parties responsible for disposing of the hazardous waste at the site (as well as the owner of the site during the disposal time): Maricopa County (owner), Bull, DEC, Honeywell, Alcatel, General Instrument, AT&T, Shell, Arizona Public Service Co., Intel, National Can, and Reynolds Metals.

It is the first time in history that an EPA settlement included de minimis party participation.

Finally in 1929 the existing concrete structure was erected, which eliminated the last obstacle on the state's most major east-west route, Highway 80.

The Hassayampa Bridge is an example of a standard construction structure used during the 1920s and 1930s, four-rib concrete deck girder.

[6] On September 30, 1988, the bridge was listed on the National Register of Historic Places.