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State of the System

Average Daily Traffic on Bay Area Bridges
(toll direction only), 2004–2008

Number of Vehicles Percent Change
Bridge 2004 2005 2006 2007 2008 2007-2008 2004-2008
San Francisco-Oakland Bay 133,000 129,900 124,800 123,900 123,900 0% -7%
Carquinez 64,000 62,900 62,300 61,300 58,100 -5% -9%
Golden Gate 53,400 53,200 53,500 54,400 52,900 -3% -1%
Benicia-Martinez 50,600 50,400 50,000 50,200 50,200 0% -1%
San Mateo-Hayward 45,700 45,900 46,700 45,700 43,300 -5% -5%
Richmond-
San Rafael		 34,800 34,700 34,600 34,600 33,700 -3% -3%
Dumbarton 30,100 29,800 30,500 29,800 28,700 -4% -5%
Antioch 7,300 7,400 7,400 7,300 6,600 -10% -10%
Total All Bridges 418,900 414,200 409,800 407,200 397,500 -2% -5%
Sources: Bay Area Toll Authority; Golden Gate Bridge, Highway and Transportation District

FasTrak® Transactions as Share of All Paid Peak-Period Crossings on Bay Area Toll Bridges, 2004 - 20081

air cargo stats 04-08

(See table below for detail.)

Percent of Vehicles Using FasTrak® Change in Percentage Points
Bridges 2004 2005 2006 2007 2008 2007–
2008		 2004–
2008
Golden Gate 2 (a.m. peak) 70% 70% 70% 70% 70% 0 0
State-Owned Toll Bridges 3  
Benicia-Martinez (p.m. peak) 35% 42% 44% 51% 56% +5 +21
San Francisco-Oakland Bay (a.m. peak) 32% 32% 37% 42% 43% +1 +11
San Francisco-Oakland Bay (p.m. peak) 33% 38% 45% 51% 53% +2 +20
Richmond-
San Rafael
(a.m. peak)		 35% 40% 44% 51% 54% +3 +19
Dumbarton
(a.m. peak)		 43% 43% 44% 48% 49% +1 +6
San Mateo-Hayward
(a.m peak)		 37% 38% 42% 47% 50% +3 +13
Carquinez
(p.m. peak)		 32% 34% 37% 42% 42% 0 +10
Antioch
(p.m. peak)		 25% 32% 34% 39% 41% +2 +16
All State-Owned Bridges4 34% 38% 41% 46% 48% +2 +14
1 For all bridges, figures do not include non-toll-paying vehicles (carpools, motorcycles or buses) or violators.
2 For the Golden Gate Bridge, the peak period represented is 8 a.m. to 9 a.m. 
3 Figures represent the annual average percentage of vehicles using FasTrak® between the hours of 5 a.m. to 10 a.m. (a.m. peak) or 3 p.m. to 7 p.m. (p.m. peak)
4 Figures represent a weighted average adjusted for actual volumes on each bridge.
Note: Bar chart includes data for state-owned toll bridges only, and therefore does not include the Golden Gate Bridge data.
Return to State of the System 2004–2008 main page

Note on Data Collection Techniques:
Toll Bridge Traffic

The Bay Area Toll Authority (BATA), which oversees the collection of tolls on state-owned bridges in the Bay Area, tracks the number of vehicles crossing each of the seven state-owned bridges. Traffic counts reflect vehicle crossings in the tolled direction for accounting purposes. BATA also tracks the percentage of vehicles that pay tolls by means of the FasTrak electronic toll collection system. The Golden Gate Bridge, Highway and Transportation District tracks traffic and FasTrak usage for the Golden Gate Bridge. The average daily traffic for each bridge is the total annual traffic divided by 365 days. Data on traffic, revenue and FasTrak usage for the seven state-owned bridges is available on the Bay Area Toll Authority Web site at: bata.mtc.ca.gov/tolls/index.htm Data on traffic, revenue and FasTrak usage for the Golden Gate Bridge is available on the Web at: www.goldengatebridge.org/research/GGBTraffToll.php

For more information, please contact:

Glen Tepke
Email: gtepke@mtc.ca.gov
Phone: 510.817.5781