For the second time in just a few weeks, the Los Angeles and Long Beach ports today announced plans to charge a fee on all loaded cargo containers passing through its terminals.

The ports will assess a $15 fee on all loaded containers for the next seven years, generating $1.4 billion for harbor transportation projects. The ports hope to obtain matching funds from the Proposition 1B infrastructure bonds approved by California voters in 2006.

The ports will use the money to fund a variety of projects in San Pedro Bay, including bridge replacements, railway enhancements and road upgrades.

“These infrastructure improvements will deliver major benefits to the community in improved traffic flow and reduced air pollution,” said Richard Steinke, Executive Director of the Port of Long Beach, in a statement.

The ports will vote on the fee at a joint harbor commission meeting on Monday.

This fee would be in addition to a $35 cargo fee recently approved by the ports to help finance their truck replacement program. The ports will use that money to replace about 16,000 heavily-polluting diesel trucks with cleaner-burning models.