
Overview
Shinonoi Bridge (Shinonoi-bashi) is a girder bridge carrying National Route 18 across the Chikuma River at the boundary between Chikuma City and Nagano City in Nagano Prefecture. A practical road bridge linking the two banks along one of the region's main arteries, it carries a steady flow of vehicles each day. From the bridge you can take in the Chikuma River, one of Shinshu's great rivers, and the surrounding Zenkoji plain.
Highlights
- ●A girder bridge carrying National Route 18 over the Chikuma River
- ●A transport link between Chikuma City and Nagano City
- ●The majestic flow of the Chikuma River seen from the bridge
- ●Views over the surrounding Zenkoji plain
History
Shinonoi Bridge has served to carry National Route 18 across the Chikuma River, which separates Chikuma City and Nagano City. The name Shinonoi comes from a district in the southern part of Nagano City, reflecting the area's long-standing role as a transport hub. The girder structure is a simple yet dependable form well suited to spanning a large river, and it has supported local traffic for many years.
Access
The bridge lies near the boundary of Chikuma City and Nagano City, around 36.55 degrees north and 138.13 degrees east. Traveling along National Route 18 naturally takes you across it, and car access is the norm. The nearest rail access is convenient from the Shinonoi area, from which heading toward the Chikuma River brings you near the bridge. Please confirm pedestrian access and viewing points with official sources.
Best season
Views are best from spring to early summer, when the river runs steady and the surroundings are bright, and again in the clear air of autumn. Spring offers greenery along the embankments, while autumn frames the bridge amid the harvest scenery of the Chikuma River basin. During high water or rough weather, prioritize safety and do not take risks.
Map
36.5587, 138.1384 · Wikidata
Suggested itinerary
- 1Join National Route 18 from the Shinonoi area
- 2Enjoy views of the Chikuma River while crossing Shinonoi Bridge
- 3Continue to the townscape on the Chikuma City or Nagano City side
- 4Combine with a riverside walk and nearby sightseeing
Did you know?
💡 The Chikuma River forms the upper course of the Shinano River, Japan's longest, and Shinonoi Bridge is one of the Route 18 crossings over this great river. More than the bridge itself, it is the view of the Chikuma River and the Zenkoji plain from the crossing that lingers in a traveler's memory.
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