Taroko National Park World Wide Web-English VersionTaroko National Park World Wide Web-English Version

Partially Open

Provincial Highway 8 (Central Cross-Island Highway, Dayuling → Taroko Entrance)
Traffic Control Measures for December 2025
Partial Openings | Controlled Construction | Nighttime Closures
Since the April 3, 2024 earthquake, the Taroko Maintenance Section of the Eastern Region Branch, Directorate General of Highways (DGH), has continued balancing road reconstruction progress with the transportation needs of local communities and industries. At the end of each month, the Section meets with Tinaxiang-area residents, local groups, businesses, relevant agencies, and civil/geotechnical engineering consultants familiar with the Central Cross-Island Highway to jointly discuss and confirm the next month’s traffic control plan.
Based on the meeting held on November 28, the traffic control measures for December 2025 are as follows:
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I. Guanyuan → Tinaxiang (114.6 km – 167.3 km)
1. Opening / Closure Schedule
After daily morning inspections and rockfall clearing confirm that conditions are safe:
• Open Hours: 07:00 – 16:30
• 16:30 – 18:00: Control gates at 114.6 km (Guanyuan / Hehuan Police Station) and 167.1 km (Tinaxiang, west end) will be closed.

Exit only, no entry (Guanyuan → Tinaxiang: only outbound traffic allowed).
• 18:00 – 07:00 (next day): Full nighttime closure (Guanyuan → Tinaxiang closed).
2. Controlled Work Zones (2 locations)
Releases follow five daily release times:
• 07:00 – 08:00, 10:00 (once release only), 12:00 – 13:00, 15:00 (once release only), 17:00 – 17:30
Km Marker Location Control Notes
117.4 km Guanyuan section Released during 5 daily release times
123.7 km Sacred Tree section Same as above
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II. Tinaxiang → Taroko Entrance (167.7 km – 184.5 km)
1. Five Daily Release Times
After morning inspections and debris clearing confirm road safety, traffic will be released five times daily:
• 07:00 – 08:00, 10:00 – 10:05, 12:00 – 13:00, 15:00 – 15:05, 17:00 – 17:30
⚠️ The 10:00 and 15:00 releases are short five-minute windows. Only vehicles already waiting at the control gates may pass. Please arrive 10 minutes early.
2. Gate Closure Time
• 17:30 – 18:00:
Gates at 167.7 km (Tinaxiang east end) and the Shakadang Tunnel east portal (Taroko N. P. HQ) will be closed. Exit only, no entry.

• 18:00 – 07:00 (next day): Full nighttime closure (Tinaxiang → Taroko Entrance closed).
3. Dynamic or Release-Following Work Zones
The following work zones will follow the same 5-time release schedule and/or adopt dynamic controls:
Km Marker Location Control Notes
157.6 km Horen Pavilion Released with 5-time schedule
159.4 km Xibao Dynamic control
172.3 km Jiuqudong Tunnel west portal Released with 5-time schedule
173.5 km Jiuqudong Tunnel east portal Released with 5-time schedule
174.8 km Zhuilu Tunnel east portal Released with 5-time schedule
176.8 km Jinheng Tunnel west portal Released with 5-time schedule
180.5 km Ning’an Bridge west end Released with 5-time schedule
During release periods, vehicles waiting at either end of these work zones will be fully released before traffic control resumes.
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III. One-Way Split Traffic (Taroko Entrance ↔ Changchun Tunnel)
To maintain safety in the narrow gorge section:
Westbound (Taroko → Tinaxiang):
• Shakadang Tunnel → Xila’an Tunnel → Changchun Tunnel → Tinaxiang
Eastbound (Tinaxiang → Taroko):
• Provincial Highway 8- → Changchun Tunnel → Taroko Entrance
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IV. Temporary or Mobile Work Zones
For works such as asphalt milling/paving, additional short-term dynamic controls may occur. These will be coordinated with:
• Guanyuan release times
• Tinaxiang release times
• Taroko Entrance gate controls
Additional notices will be issued if further traffic control is required.
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Important Reminders for Drivers
(Approx. 74 km total: Dayuling → Taroko Entrance)
Eastbound (Dayuling → Taroko)
Please arrive at Tinaxiang before 17:00 to avoid missing the final 17:00–17:30 release.
Westbound (Taroko → Dayuling)
Please pass the Shakadang Tunnel east portal before 15:00 to avoid failing to reach the Guanyuan control gate before nighttime closure.
⚠️ Due to ongoing slope stabilization, roadbed repairs, and potential weather impacts, traffic release times may be delayed or cancelled without prior notice. Drivers should plan accordingly.
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Stay Informed
Please stay updated through:
• DGH Real-Time Provincial Highway Information
• Happy Highway App (for live traffic & broadcast updates)
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Contact Information
Taroko Maintenance Section, Eastern Region Branch, Directorate General of Highways
• Road Condition Hotline: 03-9962683
• Contact Person: Section Chief Chang Pei-Yun (03-8610775)
Last Updated: December 3, 2025
For the latest information, please contact the Taroko Maintenance Section.

Road Open/ Road Repair Construction Traffic Control

Provincial Highway 9 – Construction Traffic Control Measures (December 2025 Update)
1. Su-hua Highway Improvement Project (Su’ao – Dong’ao Section)

Dec. 2, 21:00 – 06:00 (next day): Northbound lanes closed.
Dec. 3, 21:00 – 06:00 (next day): Southbound lanes closed.
Please detour via Provincial Highway 9D.

2. Provincial Highway 9D, 8 km+800 – 8 km+900 (near Yuanming Bridge)

Disaster-affected area traffic control:
Full-time single-lane alternating traffic with signal control.
Please drive cautiously and maintain a safe distance.

3. Provincial Highway 9D, 13 km+900 – 14 km+300 (Dong’ao Section)

Retaining wall repair workm: Oct. 15 – Dec. 15, daily 08:00 – 17:00.
Single-lane alternating traffic (dynamic control).

4. Provincial Highway 9, 117 km+500 – 118 km +900 (Xinao Tunnel, Northbound)

Traffic facility installation & pavement markming: Dec. 8 – Dec. 12, daily 08:00 – 17:00.
Northbound lanes closed; southbound old tunnel used for single-lane alternating traffic.

5. Su-hua Highway Improvement Project (Nan’ao – Heping Section)

Dec. 10, 09:00 – 19:00: Right lane closure (not a full road closure).
Dec. 11, 21:00 – 06:00 (next day): Southbound lanes of the Guanyin Guyfeng Tunnel closed.
Please detour via Provincial Highway 9D.

6. Provincial Highway 9D, 37 km+600 – 38 km (Wuta Section)

Slope construction: Dec. 1 – Dec. 30, daily 08:00 – 17:00.
Dynamic traffic control.

7. Provincial Highway 9D, 38 km – 38 km+600 (Wuta Section)

Guardrail improvement: Dec. 1, 2025 – Jan. 31, 2026, daily 08:00 – 17:00.
Single-lane alternating traffic (dynamic control).

8. Provincial Highway 9D, 42 km+600 – 43km+100 (Guanyin Section)

Guardrail improvement: Dec. 1, 2025 – Jan. 31, 2026, daily 08:00 – 17:00.
Single-lane alternating traffic (dynamic control).

9. Su-hua Highway Improvement Project (Nan’ao – Heping Section)

(Repeated notice, same as Item 5)
Dec. 10, 09:00 – 19:00: Right lane closure.
Dec. 11, 21:00 – 06:00 (next day): Southbound lanes of Guanyin Gufeng Tunnel closed.
detour via Provincial Highway 9D.

10. Su-hua Highway Improvement Project (Hezhong – Herin Section)

Dec. 15, 21:00 – 01:00 (next day): Southbound lanes closed.
Dec. 17, 21:00 – 01:00 (next day): Northbound lanes closed.
Please detour via Provincial Highway 9D.

11. Provincial Highway 9D, 61km+200 – 61km+700 (Hezhong – Herin Section)

Pavement milling and resurfacing: Nov. 1 – Dec. 20, daily 08:00 – 17:00.
Single-lane alternating traffic (dynamic control).

12. Provincial Highway 9D, 62km+006 – 63 km+204 (Hezhong – Herin Tunnel)

Lighting system maintenance: Dec. 8 – Dec. 11, daily 09:00 – 21:00.
Alternating bidirectional traffic control.

13. Su-hua Highway Improvement Project (Herin – Daqingshui Section)

Dec. 16, 20:00 – 22:00: Southbound lanes closed; northbound used for single-lane alternating traffic.
Dec. 16, 22:00 – 24:00: Northbound lanes closed; southbound used for single-lane alternating traffic.

14. Provincial Highway 9, 158 km+400 – 165km+300 (Daqingshui – Chongde Section)

Pavement milling and resurfacing: Nov. 1 – Dec. 20, daily 08:00 – 17:00.
Single-lane alternating traffic (dynamic control).

15. Provincial Highway 9, 161 km+100 (Huide Section)

Slope trimming works: Nov. 7 – Dec. 5, daily 08:00 – 18:00.
Two-way closure, with traffic released every 30 minutes (until all queued vehicles have passed).

16. Provincial Highway 9, 161 km+300 – 162 km+750 (Hui’de Tunnel)

Drainage improvement works: Sept. 1, 19:00 – Dec. 30, 17:00.
Continuous tunnel construction control.

17. Provincial Highway 9, 167 km+794 – 217 km+185 (Chongde – Linrong Section)

Road maintenance: Now – Dec. 12, daily 07:00 – 17:00 (including holidays).
Dynamic traffic control.

⚠️ Safety Reminder for Mountain Road Users

Due to earthquake impacts, mountain roads remain prone to rockfalls.
During or after heavy or continuous rainfall, road conditions may be unstable.
Avoid unnecessary travel on mountain roads after disasters.
Always check the weather forecast, road conditions, and plan ahead for contingencies.

Please make use of:

DGH Real-Time Provincial Highway Information Service

“Happy Highway” mobile app for instant road and traffic updates

Road condition broadcast services

The Directorate General of Highways wishes all travelers a safe journey!

Update Date: December 3, 2025

Contact Information – Su-hua Highway (Provincial Highway 9):

Nan’ao Work Section: 03-9982161

Jinyue Work Section: 03-9982501

Eastern Region Branch Office, DGH: 03-9962683

Note:
Information is current as of Dec. 3, 2025. Please contact the managing agencies for the latest updates.

Open/

Provincial Highway 14A

Road users are advised to pay attention to the variable message signs (VMS) along the roadside while passing through the above-mentioned sections. The Traffic Control Center of this Branch will continuously release traffic updates and provide driving suggestions.

For related traffic diversion measures and real-time road conditions, please visit the Directorate General of Highways (DGH) official website, download the “Happy Highway” App, or call the DGH customer service hotline at 0800-231-035 for inquiries.
The Directorate General of Highways wishes you a safe and pleasant journey.
Responsible Unit: Puli Works Section, Central Region Maintenance Engineering Branch
Road Condition Inquiry Phone: 049-2982066
Contact Person: Section Chief Chiu, Bing-rong
For the latest highway information, please contact the Directorate General of Highways.
Updated: December 3, 2025