| Year | Traffic (Vehicles) | |||
| Eastbound | Westbound | Total | Daily Average | |
| 2001 | 96,986 | 96,911 | 193,897 | 531 |
| 2002 | 111,640 | 111,640 | 223,280 | 612 |
| 2003 | 124,428 | 124,428 | 248,856 | 682 |
| 2004 | 139,561 | 139,561 | 279,122 | 763 |
| 2005 | 145,370 | 145,370 | 290,740 | 797 |
| 2006 | 166,828 | 166,828 | 333,656 | 914 |
| 2007 | 185,172 | 185,172 | 370,344 | 1,015 |
| 2008 | 193,423 | 193,423 | 386,846 | 1,057 |
| 2009 | 174,204 | 174,204 | 348,408 | 955 |
| 2010 | 202,430 | 202,430 | 404,860 | 1,109 |
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Traffic Statistics - Discovery Bay Tunnel |
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