Dam in Toyama Prefecture

0846-Muromaki Dam

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0846-Muromaki DamDam in Toyama Prefecture
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Date of interview: Sunday, 08/04/2013

The Muromaki Dam is located southward from the Yatsuo Dam. If you follow Prefectural Route 230 southward along the Muromaki River (Ida River), you will naturally reach the dam. However, according to the Toyama Prefecture website, the road downstream is not good, so please enter Prefectural Road 230 from the west side entrance of the Masama Tunnel on National Road 472 and go upstream to the management office.

At the time of our visit, the upstream side was closed to traffic, but the situation seems to have changed now. Still, I think the upstream side is not a very good road. (This is just a general opinion. I personally love narrow roads.)

Looking downstream from the right bank

It has been a long time since I have seen this arch dam. Even here, I thought I couldn't see well because of the overgrowth of vegetation...

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

View of the top end and downstream face of the embankment from the left bank

Moving upstream, we managed to find a place where we could look down on the embankment. However, although the upper half of the embankment is visible, the lower half is not. There are two crest gates. Below them, a structure that looks like a conduit gate can be seen on the left bank. According to the Toyama Prefecture website, there are two conduit gates on both sides, and the spare gate on the upstream side seems to be a coaster gate.

View of the top end and downstream face of the embankment from the left bank
左岸よりTop (Crest)・堤体下流面を見る

View of the levee and control center from the left bank

Unfortunately, however, the top edge and other parts of the levee are usually off-limits, so it is not possible to view the levee at close range. It is a pity, because the arch looks quite cool in the rain.

View of the levee and control center from the left bank
View of the levee and control center from the left bank

Toyama Prefecture Muromaki Dam Management Office

It is a cozy three-story administrative building with the entrance on the top floor.

Toyama Prefecture Muromaki Dam Management Office
Toyama Prefecture Muromaki Dam Management Office

"We provide information on the Muromaki Dam."

On weekdays, the Muromaki Dam management staff will give you a guided tour of the dam. However, on this particular Sunday, it was after 4:20 p.m., so we could only watch with our fingers in our mouths. It is not clear if they still accept tours, but dam cards are distributed. (As of May 2021)

Also, please note that the prefectural road is closed for the winter from late November to late April. (Dam cards will not be distributed during this period.)

We provide information on Muromaki Dam.
We provide information on Muromaki Dam.

View of the reservoir from the entrance of the control center

right bank (shore)(写真左)に見えるのはインクラインになります。left bank (of a river)(写真左)に見えるのは取水設備で、ここから取水された水が2km下流、八尾ダムの上流に位置する室牧発電所に送られ最大で22,000kWの電気を生み出します。

View of the reservoir from the entrance of the control center
View of the reservoir from the entrance of the control center

Although it is located in a difficult-to-access area, it is a cool arch dam that can be viewed from a bird's eye view, so if you have the opportunity, I highly recommend a visit to the Muromaki Dam.

Muromaki Dam Specifications

LocationKotani Kitahara, Yatsuo Town, Toyama City, Toyama Prefecture
River NameJinzu River System Ida River
ObjectiveF (flood control, agricultural disaster prevention)
N (unspecified water, water for river maintenance)
P(Power generation)
ModelA(arch dam)
Bank height80.5m
Bank length153.1m
Dam volume55,000 m3
Watershed Area128.3 km2 (direct: 85.2 km2, indirect: 43 km2)
Reservoir area71ha
Total storage capacity17,000,000 m3
Effective water storage capacity13,500,000 m3
Dam operatorToyama prefecture (Hokuriku area)
Main body constructorSato Kogyo
Year of launch1956
Year Completed1961
Name of Dam Lake-

Other facilities/observations

There is space to park downstream and on the shoulder of the road around the administration office.

Parking lot
Toilet×
Park×
PR Exhibition Hall×
Fishing○○ (excluding no-take zones)

Map around Muromaki Dam

Weather around Muromaki Dam

Accommodations that may be close to Muromaki Dam

The actual accommodations are listed below.

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

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