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[E19] Nagano Expressway Omi IC ⇒ Koshoku IC
Notice of day and night continuous lane regulation due to bridge renewal work

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  • [E19] Nagano Expressway Omi IC ⇒ Koshoku IC Ryo Bridge Notice of day and night continuous lane regulation due to renewal work
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The latest regulatory information isDraTraPlease see.

PDF version [PDF: 529KB]

Expressway renewal project logo image image 1

July 19, 4th year of Reiwa
East Nippon Expressway Co., Ltd.
Nagano Construction Office

NEXCO EAST At the Nagano Construction Office (Nagano City, Nagano Prefecture), E19 Nagano Expressway (hereinafter referred to as "Nagano Road") and Asa (Omi) Interchange (hereinafter referred to as "IC") On the Out-bound line between Koshoku and Koshoku IC, we will implement continuous lane restrictions day and night in connection with the renovation work of the aging Nakasone River Bridge.
We apologize for any inconvenience this may cause you, but we ask that you comply with the speed limits within the restricted area and cooperate in driving safely.
In addition, we do not anticipate the occurrence of traffic jams due to construction regulations, but when you go out, please check the traffic information on websites such as "Expressway Renewal Project Site" and "DraTra".
We apologize for any inconvenience this may cause you, but we ask for your understanding and cooperation with the construction.

1. 1. Overview of lane regulations

Route E19 Nagano Road
section Omi IC ⇒ Koshoku IC Out-bound line
Implementation period Day and night continuous lane regulation
Out-bound line: Reiwa 4th August 22nd (Monday) -November 5th (Saturday)
Time zone 24 hours (all day)
Construction content Floor slab replacement work (see "5. Outline of work")

◆ Construction image photo
[Bridge renewal work (photograph when the Nakasonegawa Bridge In-bound line was constructed in the spring of 2022)]

Photograph of the assembly status of the gate type erection machine
Gate type erection machine assembly status
Photograph of new floor slab erection by gate type erection machine
Construction of a new floor slab by a gate-type erection machine

2. Restricted section

Nagano Expressway Omi IC ⇒ Koshoku IC (Out-bound line)

Restricted section Nagano Expressway Omi IC ⇒ Image of Koshoku IC (Out-bound line)

3. 3. Lane regulation period

Out-bound line (Omi IC ⇒ Koshoku IC)
Restriction period: August 22nd (Monday) -November 5th (Saturday) (76 days)

Image of lane regulation period
Legend image image
  • Lane restrictions will be enforced day and night on weekends and holidays.
  • Depending on the weather and work progress, the timing of switching between the overtaking lane and the driving lane and the regulation period may change.

Four. Lane regulation contents

We will implement day and night continuous lane restrictions. When using, please follow the local signs and drive safely.

Out-bound line (Omi IC ⇒ Koshoku IC)
Regulation extension: Approximately 1.2km

Image of lane regulation content

Five. Construction outline

The Nakasonegawa Bridge, located on the Nagano Road Out-bound Line Omi IC ⇒ Saraku IC, is made of concrete due to fine cracks caused by an increase in wheel load due to the increase in vehicle size and salt contained in the antifreeze agent sprayed during the winter. Since the deck has deteriorated and the reinforcing bars have rusted, we will replace it with a more durable prestressed concrete deck.

[Main contents of construction]
By removing the deteriorated existing concrete deck of Nakasonegawa Bridge and installing a new prestressed concrete deck, we will improve the running performance and safety.

Image image of the contents of the main construction

6. Request when using

  1. Due to the construction, the number of lanes will be reduced from the current two lanes on each side to one lane due to the continuous day and night lane regulation for about 1.2km on the Out-bound line. Since the lane width is narrow in the day and night continuous lane regulation section, please observe the regulated speed when driving, secure the inter-vehicle distance, and be careful about rear-end collisions. Also, please be careful when driving as the lane position will change depending on the progress of construction.
  2. Construction vehicles may come and go around the construction site, so please be careful when driving ahead.
  3. Before going out, please check the latest lane regulations and traffic information on the website described in "7. How to obtain traffic information". In addition, please leave plenty of time when using it.
  4. During the construction period, we will use LED information boards and road signs to provide construction regulation information and call attention to driving safely. Please check this information before driving and drive safely.

7. How to obtain traffic information

(1) Guidance by distribution / posting

  • Information on posters, leaflets and digital signage will be posted at nearby tollhouses, SA / PA.
  • A banner will be posted on the overpass on the Expressway.

(2) Road traffic information that can be obtained before going out

(3) Road traffic information available while using the Expressway

  • Road information board
  • Highway radio (AM1620kHz)
    The highway radio section is indicated by signs on the Expressway.
  • Highway Information Terminal
    Wide-area road information is provided in an easy-to-understand manner on the monitor screens installed in SA / PA.
  • Traffic information is also distributed on Twitter's official account "NEXCO EAST (Kanto)" (@e_nexco_kanto).
  • Information will also be distributed on the official LINE account.
LINE ID: @e_nexco_kanto_naga Image link to the friend addition page
LINE ID: @e_nexco_kanto_naga
Nagano Expressway Asashi IC ⇔ Koshoku IC Transportation information Two-dimensional code image link to LINE (external link)
Two-dimensional code
Expressway renewal project logo image image 2

Expressway renewal project
Now, safety and security are passed on to the next generation.
NEXCO EAST will work on the renewal and repair business of Expressway in order to deliver safety and security to everyone.
Or search for "high-speed renewal".

The NEXCO EAST Group has positioned the period from 2021 to 2025 as "a period that contributes to the achievement of the SDGs and transforms into a new future society," and is making various efforts.
We believe that this "renewal work" initiative will contribute to the SDGs goals No. 8, 9, and 11 as business activities that lead to the development of safe, secure, and reliable infrastructure.

Image image of the SUSTAINABLE DEVELOPMENT GOALS logo and the 8th, 9th, and 11th logos of the SDGs target
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