| | California Highways (www.cahighways.org): Routes 81 through 88 (Site not responding. Last check: 2007-10-15) |
 | | On November 22, 1960, the California Highway Commission adopted an alignment for Route 84 that generally extends along Isabel Avenue from Vallecitos Road connecting to I-580 in the vicinity of Collier Canyon Road. |
 | | Caltrans documentation from 1994 indicates that the unconstructed portion is from Route 580 to Route 4, and from W of Livermore to Route 580, replacing the traversible highway. |
 | | Note that the California Transportation Commission may relinquish the portion of Route 84 within the City of West Sacramento to that city upon terms and conditions that the commission finds to be in the best interests of the state, per SB 104, chaptered 4/21/2003 (Chapter 5). |
| www.cahighways.org /081-088.html (7307 words) |