The Benicia-Martinez Bridge is one of two sets of bridges that span the Carquinez Strait. The other set is the pair of spans of the Carquinez Bridge, located to the west.
The Benicia-Martinez Bridge span, itself, is about 1.2 miles long, rising about 138 feet above the Carquinez Strait. It is part of the I-680 spur, which begins at U.S. 101 in San Jose. The bridge, itself, connects the towns of Martinez, on the south side of the span, and Benicia, which is on the north side of the span.
Tolls are collected in the northbound direction only, in Martinez, at a plaza just south of the main bridge span. For southbound traffic, drivers are, technically, crossing a different bridge, the George Miller Jr. Memorial Bridge, which are the southbound lanes of the I-680 spur.
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Tolls on the Benicia Martinez Bridge are calculated based on the number of axles for your vehicle. When counting axles, make certain to count the axles with wheels on the ground, including any axles on trailers you may be towing.
There are 6 axle designations for California.
When calculating a toll, the following options will be available in the calculator's drop-down menu:
Count each axle with wheels on the ground.
More detailed vehicle class information may be found on the Toll Payments page.