Damage to Expressway due to the Tohoku-Pacific Ocean Earthquake and restoration status

1 Damage situation

1. Expressway main line and interchange

Up to now, damage to transportation has been confirmed on 20 routes including Expressway, 854 km sections, and 4 interchanges (ICs). The main ones are as follows. (Detail is Attachment I-1-1 [PDF: 90KB] as well as I-1-2 [PDF: 597KB] reference)

It should be noted that detailed damage status has not been confirmed for the Joban Expressway (Joban Tomioka IC-Iwaki Shikura IC 30km), which has not entered due to the accident at the nuclear power plant in Fukushima Prefecture.

[Routes/sections that suffered damage that hinders traffic]
Tohoku Expressway 347km section
Kamaishi Expressway 8km section
28km section of Yamagata Expressway
Tohoku-Chuo Expressway 7km section
Ban-Etsu Expressway 85km section
Kan-Etsu Expressway 12km section
Joshin-Etsu Expressway 15km section
Joban Expressway 153km section
Tateyama Expressway 7km section
Higashi-Kanto Expressway 63km section
1km section of Gaikan Expressway
Kita-Kanto Expressway 46km section
Sendai-Hokubu Road 10km section
Sendai-Tobu Road 19km section
Sanriku Expressway 4km section
Higashi-Mito Road 10km section
Keiyo Road 6km section
Tokyo Wan Aqua-Line Expressway 15km section
Futtsu-Tateyama Road 4km section
Ken-O Road 14km section

20 routes, 854 km

[Main contents of damage]

1. Road body/road surface collapse 2 places ( Attachment I-1-3 reference)
2. 13 large-scale cracks on the road body ( Attachment I-1-4 reference)
3. 23 depressions on the road (maximum depth of 30 cm) ( Attachment I-1-5 reference)
4. 174 steps on the road surface of 2 cm or more (maximum 100 cm) ( Attachment I-1-5 reference)
5. Damage to bridge bearings 3 Bridges 5 bearings ( Attachment I-1-6 reference)
6. Damage to bridge joints 46 bridges 56 locations ( Attachment I-1-6 reference)
7. IC damage ( Attachment I-1-7 reference)

• Sendai-Tobu Road Sendai Kohoku IC and Natori IC are not available due to the tsunami.
• Tohoku Expressway Iwatsuki IC, the bridge bearing was damaged, and at the Joban Expressway Yamamoto IC, many cracks were generated on the road surface.

No serious damage to the bridge and tunnel structure body has been confirmed so far except for (5) and (6) above.

2. Various facilities

Up to now, damage to the communication network required for road traffic control (breakage of optical cable) has occurred in more than 11 locations on 5 routes (Attachment I-2 [PDF: 64KB] (See), various obstacles that affect the toll collection function of the tollgate were confirmed at one tollgate.

Many other damages have been confirmed, such as ground subsidence around the building.

3. Service area and parking area

Out of 175 service areas/parking areas (SA/PA) in Tohoku, Kanto, and Niigata areas, 40 buildings have been damaged and 91 lifelines have been interrupted.

In particular, at seven locations on the Tohoku Expressway, there are severely damaged buildings and it is not possible to enter inside. (Attachment I-3 reference)

2 Road restoration status

1. Completion of temporary restoration and use as an emergency traffic route

About 20 damaged lines and a total of 854 km section, mainly on major lines such as Tohoku Expressway, by the early morning of March 12, provisional restoration to allow emergency vehicles to pass Has been completed) and is used as a rescue vehicle for the SDF.

Of these lines and sections, the public safety committee has designated them as emergency traffic routes from 12:00 on March 12th sequentially, and up to now, up to 6 routes and 583 km sections can be used for emergency vehicle traffic and transportation of goods. It was used.

Sections where emergency traffic route designation is ongoing at present: 6 lines, 536 km
(Attachment II-1 [PDF:218KB] as well as Attachment II-2 [PDF:421KB] reference)

2. A section where emergency restoration has been completed or is underway to allow general vehicles to pass

1. The section that has already been opened after the completion of emergency restoration: 13 routes, 243 km (Attachment II-1 [PDF:218KB] reference)
2. Sections currently undergoing emergency restoration: 8 lines, 151 km (Attachment II-1 [PDF:218KB] as well as Attachment II-2 [PDF:421KB] reference)

(Breakdown above)
Section designated as emergency traffic route (5 lines, 105 km)
Sections not designated as emergency traffic routes (4 routes, 46 km)
Note) Sendai-Tobu Road is included in both sections

3. A section where emergency restoration has been completed or is underway to allow general vehicles to pass

(Attachment II-1 [PDF:218KB] as well as Attachment II-2 [PDF:421KB] reference)

For the Joban Expressway (Joban Tomioka IC-Iwaki Shikura IC 30km), which has not been visited due to the accident at the nuclear power plant in Fukushima Prefecture, we have not begun recovery work.

3 Future prospects

( Attachment III-1 [PDF: 595KB] reference)

(1) Tohoku Expressway

(2) For other routes and sections, we are making all-out efforts to make an emergency repair, and will complete them in sequence.

4 Usage of various facilities

(Attachment IV-1 reference)

1. Unopened sections of SDF and emergency vehicles
   The unopened Kita-Kanto Expressway Kiryu Ota-Sano Danuma (scheduled to open on March 19, 2011) is used for the passage of SDF vehicles and emergency vehicles.
2. Utilizing a rest facility as a relay base for emergency vehicles
   Almost all rest facilities available within the section designated as an emergency traffic route are used as a relay station and a supply station for emergency vehicles heading to the disaster area.

【reference】Emergency traffic route usage (photo data)