Shōwa

The Okutsu Kirotani-gawa Intake Weir is a 12-metre gravity weir of 1932 whose intake gate, revetment and arched inlet all survive complete in Okayama.

The Okutsu No. 3 Aqueduct is an 18-metre reinforced-concrete three-span rigid-frame bridge of 1932 carrying a trapezoidal water flume over the Yu-no-tani-gawa in Okayama.

The Okutsu Power Station Regulating Reservoir, nestled in the mountains of Kagamino Town, Okayama Prefecture, is a nationally Registered Tangible Cultural Property built in 1933. This massive reinforced concrete structure features an exceptionally rare buttress-style construction and covers nearly 9,500 square meters. Located near the historic Okutsu Onsen hot springs and the scenic Okutsu Gorge, the site offers a unique blend of industrial heritage and natural beauty.

The smallest registered structure of the Okutsu scheme in Kagamino, Okayama. Built in 1932, this 4.4 m weir is 1.5 m high and feeds a tributary into a branch canal.

A 1932 wall at Kagamino in Okayama, running about 185 m in granite laid diagonally, topped by a 0.85 m concrete balustrade and pierced by a spillway tunnel mouth.

A 1932 overflow weir on the upper Yoshii River in Kagamino, Okayama. About 34 m long and 3.3 m high, set on granite bedrock, with a curving stepped fish ladder.

A 1932 reinforced concrete aqueduct at Kagamino in Okayama, carrying the Okutsu headrace over the Orodani River on three 6.1 m bays with outward-flaring piers.

The Kamisaibara Power Station Akawase River Intake Weir of 1930 is a 12 metre gravity weir on bedrock, faced in diagonally coursed granite, with a debris screen.

The Kamisaibara Power Station Ikego River Intake Weir of 1930 stands 3.1 metres high on the crest of a steep rock slope, with an arched sand flush outlet.

At 78 square metres, the Kamisaibara Power Station Ikego Channel Settling Basin of 1930 is the smallest of this station's nine registered structures on the Yoshii.

Built in 1930, the Kamisaibara Power Station Confluence Basin joins river water with the tailrace of an upstream station across 694 square metres of concrete.

The Kamisaibara Power Station Head Tank of 1930 ends the main channel, regulating flow to the powerhouse across 497 square metres of roughly triangular pond.

Ninety metres of 1930 stone walling, the Kamisaibara Power Station Penstock and Main Building Retaining Walls made level ground where the valley had almost none.

The Kamisaibara Power Station Tenno Channel Settling Basin of 1930 covers 134 square metres, settling sand and shedding surplus water over a west overflow weir.

Built in 1930 on the upper Yoshii River, the Kamisaibara Power Station Main Building is a concrete powerhouse with a flattened Pratt truss over its generator hall.

The Kamisaibara Power Station Yoshii River Intake Weir of 1930 spans the river on exposed bedrock, 30 metres long, keeping its fish ladder and six sluice gates.

Discover the Former Kurashiki City Hall, now the Kurashiki City Art Museum—a 1960 Brutalist masterpiece designed by Pritzker Prize-winning architect Kenzo Tange. Registered as a national Tangible Cultural Property in 2020, the building fuses Japanese tradition with modernist innovation in the heart of the Kurashiki Bikan Historical Quarter.

Built in 1932 as the Yamada village office, this symmetrical concrete building in Wake, Okayama shows Expressionist touches. Free entry by advance booking.

Mimasaka-Takio Station in Tsuyama keeps its original 1928 wooden building, a registered cultural property. The opening scene of the final Tora-san film was shot here.

Hokoku Station in Takahashi is named for the scholar Yamada Hokoku, said to be Japan's first station named after a person. Its 1928 building is a cultural property.