Expressway renewal project

【E8】北陸道（下り線）名立谷浜IC⇒上越JCT間
夜間通行止め及び昼夜連続車線規制のお知らせ（第2報）

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Press Release　Niigata office
[E8] Between Hokuriku Expressway (Out-bound line) Meitachi Tanihama IC ⇒ Joetsu JCT Notice of night traffic closure and day-night continuous lane regulation (2nd report)

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We will carry out tunnel reinforcement work from April to August

March 19, 2018
East Nippon Expressway Co., Ltd.
Niigata office

NEXCO EAST Niigata branch (Niigata city Chuo Ward)E8Tunnel reinforcement work is being carried out from October, 2017 era between Mainichi Tanihama Interchange (IC) and Joetsu Junction (JCT) of the Hokuriku Expressway (down line). Thank you very much for your understanding and cooperation in construction. Because of the winter snow-ice period, we temporarily canceled the regulations associated with construction, but we will restart construction from April 17 (Tue), 2018.

This time we will inform you of regulatory schedule until the beginning of August of 2018 as a second report. During the construction period, we have prepared a website dedicated to the construction work External link: A new window will be provided, so please refer to it when using the Expressway.

We apologize for the inconvenience to our customers, but we ask for your understanding and cooperation as it is necessary for the safe and comfortable use of the Expressway.

Route	Hokuriku Expressway
section	Meitetsu Tanihama IC-Joetsu JCT (Out-bound line)
Implementation period	Night traffic We will carry out the following schedule. (* Except Saturday and Sunday.) May 8 (Tue) - 17 (Thu), 2018 【8 nights】 ※ Reserved day: May 18 (Fri), 21 (Mon) June 18 (Mon) - 26 (Tue), 2018 【7 nights】 ※ Reserved date: June 27 (Wed), 28 (Thu) July 30 (Mon) - 1 (Wed), 2018 - (3 nights) * Reserved day: August 2 (Thu), 3 (Fri) Day and night continuous lane regulation We will carry out the following schedule. April 17 (Tue) - April 20 (Fri), 2018 April 23 (Mon) - April 26 (Thu), 2018 May 8 (Tue) - August 3 (Fri), 2018 ※ Saturdays, Sundays and public holidays will also be held.
Regulation method	1. Closed at night 2. Restricted lanes during the day and night
Time	From 12:00 to 6:00 the next morning, 2. 24 hours all day
Construction content	Tunnel reinforcement work
Remarks	* Regulation period / time may be changed or canceled depending on the weather.

Schedule for night traffic and day / night continuous lane regulation

　E8 Hokuriku Expressway, we will carry out night traffic closures and day and night continuous lane restrictions according to the following schedule.

Implementation time

Closed at night: From 20:00 each day to 6:00 the next morning
Day / night continuous lane regulation: 24 hours a day

We will inform you of the regulation implementation date after the middle of August, 2018 again at a later date.

For closed sections and detours, Attachment 1 [PDF: 198KB] Please check.
Regarding adjustment of transit charges due to suspension of traffic, Attachment 2 [PDF: 57KB] Please check.
NEXCO EAST's road traffic information providing services etc.,Attachment 3 [PDF: 92KB] Please check.
Regarding the suspension of the Joshinetsu Expressway scheduled to be close at the same time as this construction, Attachment 4 [PDF: 220KB] Please check.
For all scheduled road closures on the Hokuriku and Joshinetsu roads, Attachment 5 [PDF: 220KB] Please check.

Outline of tunnel reinforcement work

Tunnel reinforcement work is a work to install an invert (a lining part that is finished in an inverted arch on the bottom of the tunnel) against the increase in earth pressure around the tunnel, increasing the proof stress of the tunnel, It has the effect of preventing deformation.

Tunnel reinforcement work (other cases)

Lane control methods