Partially Open (Night time road closure)

Traffic Control Measures for the Eastern Section of the Central Cross-Island Highway (Provincial Highway 8) (Dayuling–Taroko) for July 2026 

Since the April 3, 2024 earthquake, the Taroko Maintenance Office of the Eastern Region Branch, Highway Bureau, has been working to balance road restoration progress with the transportation needs of local industries and road users. Therefore, the office invites representatives from residents of the Greater Tinaxiang area, industry associations, businesses, relevant agencies, and civil engineering (geotechnical) consultants familiar with the Central Cross-Island Highway to discuss and formulate monthly traffic control measures for the following month.
After discussion on June 24, 2026, the traffic control measures for July 2026 are as follows:
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1. Guanyuan to Tinaxiang (Provincial Highway 8, 114.6 km–167.1 km)
(1) Open to traffic:
Two-way traffic is allowed daily from 06:30 to 16:30.
(Control points: West end at the Guanyuan Hehuan Police Station in front of 114.6 km; east end at the west side of Tinaxiang at 167.1 km.)

(2) Road clearance period:
Daily 16:30–18:00: Entry is prohibited (vehicles inside the controlled section may exit only).

(3) Night closure:
Daily 18:00–06:30 the following day: Road closed at night.

(4) Construction control sections:
At 112.6 km, 116.5 km (Guanyuan section) and 123.7 km (Bilu Sacred Tree section), traffic will generally be released once every hour, with adjustments coordinated according to westbound traffic from the Tinaxiang side to minimize waiting time.
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2. Tinaxiang to Taroko Entrance (Provincial Highway 8, 167.7 km–184.5 km)

(1) Open to traffic:
Five scheduled releases are implemented daily from 06:30 to 18:00:
•    06:30–08:00 
•    10:00–10:05 
•    12:00–13:00 
•    15:00–15:05 
•    17:00–18:00 
(Control points: West end at the west side of the Lushui Hydrological Bridge at 169.5 km; east end at the east entrance of Shakadang Tunnel.)

(2) Road clearance period:
Daily 18:00–18:30: Entry is prohibited (vehicles inside the controlled section may exit only).

(3) Night closure:
Daily 18:30–06:30 the following day: Road closed at night.

(4) Construction control sections:
1.    Six construction zones:
•    172.2 km (west entrance of Jiuqudong Tunnel) 
•    173.5 km (east entrance of Jiuqudong Tunnel) 
•   174.9 km (east entrance of Zhuilu Tunnel) 
•   175.5 km (west entrance of Jinheng Tunnel) 
•    179 km (Xipan section) 
•    180.5 km (west side of Ning'an Bridge) 
These sections will follow the five scheduled release times between Tinaxiang and Taroko Entrance, or implement temporary traffic control depending on construction conditions.
2.    During release periods, adjacent construction zones will coordinate with each other. The principle is to allow all vehicles waiting at both ends of the work zones before each release period to pass through first, then resume construction traffic control. 
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(5) Detour section:

The section from Taroko Entrance to Changchun Tunnel continues to adopt one-way diversion measures:
1.    Westbound (Taroko → Tinaxiang):
Taroko N. P. HQ Shakadang Tunnel → Xilagan Tunnel → Changchun Tunnel on Provincial Highway 8 → Tinaxiang 
2.    Eastbound (Tinaxiang → Taroko):
Provincial Highway 8 → Changchun Tunnel → Taroko Entrance 
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3. Other Temporary or Mobile Construction Zones
Temporary or mobile construction works (such as asphalt pavement milling and resurfacing projects) will consider nearby construction zones and the scheduled traffic release times at Guanyuan, Tinaxiang, and Taroko Entrance.
To minimize impacts, short-term traffic controls may be implemented as needed, or separate traffic control announcements will be issued.
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In addition, the Taroko Maintenance Office of the Eastern Region Branch, Highway Bureau, reminds drivers traveling the Dayuling–Taroko Entrance section (approximately 74 km in total):
•    Eastbound (Dayuling → Taroko):
Drivers are advised to arrive at Tinaxiang no later than 17:00 to avoid missing the final traffic release period from 17:00–18:00. 
•    Westbound (Taroko → Dayuling):
Drivers are advised to pass the Taroko N. P. HQ Shakadang Tunnel east entrance control point by 15:00 to avoid being unable to pass the Guanyuan control point before the 18:00 night closure. 
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The eastern section of Provincial Highway 8 (Central Cross-Island Highway) has been affected by earthquake and typhoon damage. Numerous slope stabilization, roadbed, and pavement restoration projects are still ongoing.
Traffic release schedules may be delayed or cancelled due to weather conditions or unexpected situations.
Road users are advised to plan trips carefully, prepare alternative arrangements, and pay attention to weather conditions and road control information.
Please use the Highway Bureau Smart Provincial Highway Real-Time Information Service website or download the “Happy Highway APP” and listen to traffic broadcasts to obtain the latest road conditions.
The Highway Bureau wishes everyone a safe journey.
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Responsible Unit: Taroko Maintenance Office
Road Condition Inquiry: +886-3-9962683
Contact Person: Section Chief Zhang Pei-Yun (+886-3-8610775)
Updated: July 1, 2026
For the latest highway information, please contact the Taroko Maintenance Office.
Management Unit:
For the Central Cross-Island Highway (Provincial Highway 8), please contact the Taroko Maintenance Office (+886-3-8610775) or the Eastern Region Branch, Highway Bureau (+886-3-9962683).
Update Note:
Information is current as of July 1, 2026. Please contact the management unit for the latest updates if changes occur.

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【Provincial Highway 14A】Central Cross-Island Highway Wushe Branch Line – Traffic Control & Construction Information
The Highway Bureau advises motorists traveling on the aforementioned road sections to remain attentive to changeful message signs (CMS) along the roadside. The traffic control center of this branch office will issue real-time traffic updates and driving recommendations accordingly. For details on traffic relief measures and real-time road conditions, please visit the Highway Bureau website, the Real-Time Traffic Information System, download the "Happy Highway" App, or call the motorist service hotline at 0800-231-035.
The Highway Bureau wishes you a safe journey.
•    Organizing Unit: Puli Maintenance Section, Central Region Highway Bureau
•    Road Condition Inquiry Hotline: 049-2982066
•    Contact Person: Section Chief Chiou, Biing-Rong
•    For the latest highway updates, please contact the Highway Bureau.
•    Date of Update: July 1, 2026
Management Authorities: For inquiries regarding the Central Cross-Island Highway Wushe Branch Line (Provincial Highway 14A), please contact the Taroko Maintenance Section at 03-8610775 or the Puli Maintenance Section at 049-2982066.
Update Note: This information is current as of July 1, 2026. In the event of any changes, please contact the management authorities to verify the latest updates.

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Provincial Highway 9 (Su-hua Highway) Traffic Control Information

1. Block Barrier Construction at km 117+600 on Provincial Highway 9 (New Su’ao Tunnel Facility Room)
From June 9 to July 10, the road width will be reduced due to the construction area setup. Drivers are advised to slow down and drive carefully through this section. (Including weekends and holidays)

2. Slope Protection Work at km 120+700 on Provincial Highway 9 (Nan’ao Section)
From June 16 to July 15, daily from 08:00 to 17:00, traffic will be subject to mobile control.

3. Slope Cutting and Wire Mesh Installation at km 37+600–37+800 on Provincial Highway 9D (Guanyin Section)
From June 24 to July 31, daily from 08:00 to 17:00, traffic will be released for 10 minutes at every hour.

4. Lower Slope Anchor Reinforcement Inspection at km 43+320–44+400 on Provincial Highway 9D (Guanyin Section)
From June 22 to July 3, daily from 08:00 to 17:00, traffic will be released for 10 minutes at every hour.
(Motorcycles are not subject to traffic control.)

5. Traffic Control for Su-hua Highway Improvement Project (Su’ao–Hezhong to Heren Section) on Provincial Highway 9
From July 13, 21:00 to 01:00 the following day, the northbound lane will be closed.
From July 14, 21:00 to 01:00 the following day, the southbound lane will be closed.
Vehicles should detour via Provincial Highway 9D.

6. Tunnel Lighting System Maintenance at km 62+421–63+204 on Provincial Highway 9D (Heren Tunnel)
From June 29 to July 2, daily from 08:00 to 17:00, single-lane traffic control will be implemented (the entire road will not be closed).

7. Tunnel Lighting System Maintenance at km 159+280–159+890 on Provincial Highway 9 (Tunnel No. 13)
From July 2, 20:00 to 05:00 the following day, single-lane traffic control will be implemented (the entire road will not be closed; traffic will take turns using the open lane).

8. Upper Slope Restoration Work at km 162+800 on Provincial Highway 9 (South Entrance of Huide Tunnel)
From June 9 to July 21, daily from 08:00 to 17:00, one-way alternating traffic control will be implemented.

Due to earthquake impacts, mountain roads are prone to rockfalls. During heavy rain or continuous rainfall, road conditions may be difficult to predict. Please avoid entering mountain roads after disasters unless necessary. Pay close attention to weather information and road accessibility updates, and plan your trip in advance with proper contingency arrangements.

Please make full use of the Highway Bureau Smart Provincial Highway Real-Time Information Service Website or download the “Happy Highway APP” on your mobile device, and listen to traffic broadcasts to obtain the latest road information.

The Highway Bureau wishes everyone a safe journey!

Updated: July 1, 2026

Managing Authorities
For Su-hua Highway (Provincial Highway 9), please contact:

Nan’ao Maintenance Section: +886-3-9982161
Jinyue Maintenance Section: +886-3-9982501
Eastern Region Branch, Highway Bureau: +886-3-9962683

Update Notice
Information is current as of July 1, 2026.
For any changes, please contact the managing authorities for the latest information.