Located at the junction of Middle River, Trapper Slough and North Canal, The Borden Highway Bridge carries vehicular traffic across the Middle River north of Union Island.

Use NOAA Chart 18661.

Characteristics: The bridge has a 11-foot closed vertical clearance with 105 feet of horizontal clearance in the center span. This area is the junction of Trapper Slough, North Canal and Middle River and has tricky currents during periods of high water.

Local Notices to Mariners are now exclusively available online from the U.S. Coast Guard.