Washington Gov. Jay Inslee and Oregon Gov. Kate Brown said Friday that they will be in Vancouver on Monday to announce a joint effort to replace the Interstate 5 Bridge.

The two governors, both Democrats, are scheduled to sign a letter of intent toward replacing the bridge’s twin spans with a modern crossing that would ease congestion and be better able to withstand a strong earthquake, according to news releases from the governors’ offices.

Specifics of what’s in the agreement are not expected to be revealed until the two governors sign the document at 10:30 a.m. Monday at The Waterfront Vancouver, not far from the bridge itself.

Afterward, Inslee and Brown are scheduled to take questions from the media and meet with “regional leaders and stakeholders,” according to an advisory from Inslee’s office.

The two states plan to open an office for the I-5 Bridge project and incorporate community feedback in developing a bistate approach toward advancing the long-discussed project.