25 Bridges Along Shoreline Highway

Alternate routes in case of earthquake or tsunami

Mendocino County has numerous rivers and streams which flow westward towards the Pacific. They are easily crossed by traveling over a system of culverts and bridges. 18 of the 25 significant bridges shown on our maps are over 50 years old, and 12 of these are rated in fair condition. The bridges we take for granted are used a surprising amount. Last measured in 2009, the Noyo Bridge had average daily traffic of 23,950 vehicles! Ten Mile Bridge averaged 1500 vehicles a day, while Gualala Bridge saw 4200. If one or more bridges becomes impassable due to earthquake, tsunami or other causes, many people will be affected.

Both our downloadable and our interactive bridge maps contain the information you’ll need to use alternate routes to drive around damaged bridges. In the interactive maps, we also show trail go-arounds for travelers on foot or bicycle.

Explore the bridges using the interactive maps: ↓ Click on a bridge on the list or map—then click on “WEBSITE” in the small blue text.

Instead of a website, you’ll see maps with information about that bridge. You’ll also see this map again so you can choose the next bridge to explore.

The map above is interactive; the bridge go-around map below is downloadable.