California note
Sacramento raised its streets, and Old Sacramento still has the clues
Old Sacramento's underground and hollow sidewalks tell the story of floods, raised streets, and a city that rebuilt its business district upward.
Old Sacramento has a hidden story under the boards and bricks. In the city’s early years, fire, disease, and flooding all made life hard, but floods were the repeated problem. The Sacramento and American Rivers helped the young city grow, but high water also kept testing it.
The answer was huge. Sacramento built levees, changed part of a river, and raised streets in the business district more than 20 feet above the flood plain. That work took many years, money, labor, and public will. It changed how downtown Sacramento sat on the land.
The result is why people talk about underground spaces in Old Sacramento. They are pieces of an older street level, with hollow sidewalks and spaces left behind when streets and buildings rose. The project is rare: Sacramento is the only city in California known for raising its streets this way.
That makes Old Sacramento easier to appreciate. The district has old storefronts and Gold Rush scenery, but it is also a survival story. The city lifted itself, block by block, so downtown could keep working beside the rivers that made Sacramento important in the first place.
Where to see it
Old Sacramento State Historic Park and the Sacramento History Museum tour area.
Official sources
Official pages
Reviewed July 2, 2026
Current maps, alerts, conditions, and public safety guidance.
Conditions and public guidance can change quickly. Check the current page before you act.
Connected places
Open the local directory
Related notes
Related California notes
The Railroad Museum makes Sacramento's train story easy to see
The California State Railroad Museum in Old Sacramento uses restored locomotives, cars, exhibits, and archives to show why railroads mattered so much here.
Read next →Old Sacramento keeps the riverfront story close to downtown
Old Sacramento State Historic Park preserves early commercial buildings, railroad history, and a riverfront district tied to the Gold Rush era.
Read next →Sacramento's Railyards is a project area, not one finished attraction
The 244-acre Railyards is a long-term redevelopment area north of downtown; project maps show approved possibilities, not a list of places already open.
Read next →