Okayama Prefecture Dam

1869-Yubara Dam

1869-Yubara Dam Okayama Prefecture Dam
This article can be read in about 6 minutes to read.

Date of interview: Wednesday, 12/10/2014

It is the Yubara Dam that I came from the Onbara Dam via the Ningyo Pass in a large Tottori roundabout. This is the 10th dam on this day. This Yubara Dam is one of the dams that I have wanted to see many times.

In 1948, Okayama Prefecture drew up the Asahigawa Comprehensive Development Plan, and the Chugoku Electric Power Co. also drew up a five-year plan to increase power generation in the Chugoku Region as part of postwar reconstruction efforts. The Chugoku Electric Power Co., Ltd. also proposed a five-year plan to increase power generation in the Chugoku Region as part of postwar reconstruction efforts.

Downstream view of the levee from the left bank leading to the top

On the left bank road leading to the top of the mountain, there is the "Yubara Onsen Miharashi Observatory" and the view from there is the photo below. It is important to note that the trees have been cut to improve the view. Also, there are stairs nearby that can be strolled from Yubara Onsen.

Downstream view of the levee from the left bank leading to the top
Downstream view of the levee from the left bank leading to the top

Yubara Dam Management Office

On the left bank is the Yubara Dam management office. On this day, I received a dam card here.

Yubara Dam Management Office
Yubara Dam Management Office

Mysterious structure in the back

Mysterious structure at the back of the administration office. I think this is definitely the remains of a batcher plant, but I regretted asking about it when I received my dam card.

Mysterious structure in the back
Mysterious structure in the back

Looking upstream from the left bank

I am looking from the area around the concrete structure that appears to be the remains of that batcher plant.

Looking upstream from the left bank
Looking upstream from the left bank

View of the reservoir from the left bank

The left bank was dead-end beyond this point, but the right bank was passable because of Prefectural Road 322 along the reservoir.

View of the reservoir from the left bank
View of the reservoir from the left bank

Two water use signs

Two water use signs are erected in front of the management office building. The one on the left is for the Yubara No. 1 Power Station, which generates power in the dam channel type, and the one on the right is for the Yubara Weir Power Station, which generates power in the dam type just downstream of the embankment.

Two water use signs
Two water use signs

Entrance to the management office

At the entrance to the control center on the left bank, there is a stone monument with various information about the Yuhara Weir Power Plant, Yuhara No. 1 Power Plant, and Yuhara No. 2 Power Plant. It says that each power station was built as part of a five-year postwar reconstruction plan. Also, on the main pillar at the top is written "YubaraweirThe "" letters are in good taste. The lighting is also a design I have not seen before.

Entrance to the management office
Entrance to the management office

View of the top edge from the left bank

The top end is on Prefectural Road 322 and is open to automobile traffic.

View of the top edge from the left bank
View of the top edge from the left bank

View of the upstream face of the embankment through the gap between the embankment and the control center

A small boat and a floating pier can be seen at the reservoir. Apparently, there are stairs leading down to the reservoir from the management office.

View of the upstream face of the embankment through the gap between the embankment and the control center
View of the upstream face of the embankment through the gap between the embankment and the control center

Gate peer

Yuhara Dam has six roller gates in the crest. The "crest gate= (after a noun, adjective stem, onomatopoeic-mimetic word, etc.)emergency flood dischargeThe official pamphlet lists this roller gate as a permanent flood discharge because there is no other flood discharge at the Yubara Dam.

Gate peer
Gate peer

Roller gate

The roller gate is 5.5m wide by 8.2m high.

Roller gate
Roller gate

Looking up at Gates Pier

A gate winder can be glimpsed.

Looking up at Gates Pier
Looking up at Gates Pier

Looking downstream from the top

There is an open-air Yubara hot spring bath called Sunayu 300 m downstream from the Yubara Dam. Therefore, it is a little difficult to take pictures of the dam.

Looking downstream from the top
Looking downstream from the top

View of the top edge from the right bank

Equipped with a retro Showa styleTop (Crest)The remains of the foundation of a cable crane can be seen on the left bank. You can also see the remains of the cable crane foundation on the left bank. We would like to have an observatory on the ridge of that mountain. Incidentally, there was a ropeway in Yubara Onsen in the 1950s (late 1970s). Could it be that the Yubara Dam could be seen from the ropeway?

View of the top edge from the right bank
View of the top edge from the right bank

Looking downstream from the right bank

The view is not that great, but you can manage to see the downstream face from the right bank as well.

Looking downstream from the right bank
Looking downstream from the right bank

Looking upstream from the right bank

The Yubara Dam is now entering the full-blown snow season...and the scenery is chilly. Yubara Dam in snowy weather also looks beautiful.

Looking upstream from the right bank
Looking upstream from the right bank

Downstream side of dike and entrance to sand bath

天端周辺をひとしきり見学した後に下流側へと向かいます。それにしてもカメラ持って露天風呂回りを歩くのはやっぱり勇気が要りますね😅

Downstream side of dike and entrance to sand bath
Downstream side of dike and entrance to sand bath

Discharge warning sign

This is a small discharge warning sign, perhaps out of concern for the landscape. It is also unusual in that it has a roof.

Discharge warning sign
Discharge warning sign

View of the downstream face of the dike

The downstream face of the Yubara Dam embankment. The downstream face of the Yubara Dam has a clear impression because there is no sub-dam. You can see a round hole at the bottom of the ledge, but is that a sediment discharge gate?

View of the downstream face of the dike
View of the downstream face of the dike

Looking downstream from the left bank

Unfortunately, I cannot go to the very bottom of the dike. What can be seen at the end of the left bank road is the Yubara weir power station, but entry is restricted by a fence.

Looking downstream from the left bank
Looking downstream from the left bank

Through a gap in the fence at the Yubara Weir Power Plant

The plantings are beautifully landscaped. If I have a chance to show me inside during the tour, I would love to see it.

Through a gap in the fence at the Yubara Weir Power Plant
Through a gap in the fence at the Yubara Weir Power Plant

Unfortunately, I did not enter the open-air bath this time, but the Yubara Dam made me want to enjoy the dam from the bath on my next visit.

Yubara Dam Specifications

LocationYubara Onsen, Maniwa City, Okayama Prefecture
River NameAsahigawa River, Asahigawa River system
ObjectiveF (flood control, agricultural disaster prevention)
P(Power generation)
ModelG(gravity-fed concrete dam)
Bank height73.5m
Bank length194.4m
Dam volume218,631 m3
Watershed Area255km2
Reservoir area455ha
Total storage capacity99,600,000 m3
Effective water storage capacity86,000,000 m3
Dam operatorChugoku Electric Power Co.
Main body constructorKumagai Gumi
Year of launch1952
Year Completed1954
Name of Dam LakeLake Yubara

Other facilities/observations

Parking is available for a few cars around the top edge, and downstream is the parking lot of Yubara Onsen.

Parking lot
Toilet
Park×
PR Exhibition Hall×
Fishing○ (fishing fee required)
Viewing platform

Map around Yubara Dam

Weather around Yubara Dam

Accommodations that may be close to Yubara Dam

Yubara Hotels & Inns - Accommodation Reservations (Okayama Prefecture) [Rakuten Travel] (in Japanese only)
If you are looking for hotels and inns in Yubara, Rakuten Travel is the best place to go! You can use and earn Rakuten points, and it is a very economical accommodation reservation site. You can also use discount coupons! Domestic tours, airline tickets, car rentals, and bus reservations!
Which is the Best Accommodation? Help!
I found a bunch of hotels that look good on Booking.com. Please help me decide which hotel to book!
This article was written by.
Shin Jinma

Dam enthusiast who loves Momosuke Fukuzawa / Dampedia and Dam News administrator / Certified Dammeister (01-018) by the Japan Dam Foundation / Started selling discharge caution goods.https://shop.dampedia.com

Follow Damapedia
Dampedia

Comment

タイトルとURLをコピーしました