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

Partial Opening | Controlled Construction | Nighttime Road Closures

Provincial Highway 8 (Central Cross-Island Highway, Dayuling → Taroko Entrance)
Traffic Control Measures for October 2025
Partial Openings | Controlled Construction | Nighttime Road Closures
Since the April 3, 2024 earthquake, the Taroko Maintenance Section of the Eastern Region Branch, Directorate General of Highways (DGH), has been balancing reconstruction progress with the transportation and livelihood needs of local residents. At the end of each month, the Section convenes residents, civic groups, local businesses, engineering consultants, and relevant agencies from the Tinaxiang area to discuss and finalize the following month’s traffic control plan.
The following measures apply for October 2025:
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I. Guanyuan → Tinaxiang (114.6 km – 167.3 km)
• After daily morning patrols and rockfall clearing confirm safety, traffic will be open 06:00 – 16:30.
• 16:30 – 18:30: control gates at 114.6 km (Guanyuan / Hehuan Police Station) and 167.1 km (Tinaxiang, west end) will be closed. Exit only, no entry.
• 18:30 – 06:00 (next day): full nighttime closure.
Controlled Work Zones within this section:
Km marker Location Control Type
117.4 km Guanyuan section Scheduled releases: 06:00–08:00, 10:00 (once), 12:00–13:00, 15:00 (once), 16:00–18:30
123.7 km Sacred Tree section Same as above
141.6 km Xinbaiyang section Dynamic control
147.0 km Hualu River section Dynamic control
147.8 km Ciyun Bridge Hourly release on the hour, 10 minutes each hour
157.7 km Huoran Pavilion section Dynamic control

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Holiday Arrangements:
During long weekends and holidays (Teachers’ Day-Sept. 27-29th, Mid-Autumn Festival- Oct. 4-6, National Day- Oct.10-12, Retrocession Day- Oct. 25-27), Guanyuan and Tinaxiang control gates will operate as usual, but work zones will not enforce traffic control.

Tinaxiang → Taroko Entrance (167.7 km – 184.5 km)
• After morning patrols and rockfall clearing confirm safety, traffic will be released five times daily:
1. 06:30 – 08:00
2. 10:00 – 10:05
3. 12:00 – 13:00
4. 15:00 – 15:05
5. 17:00 – 17:30
⚠️ Note: The 10:00 and 15:00 releases are short (5 minutes). Only vehicles already waiting at control gates may pass. Please arrive 10 minutes early.
• 17:30 – 18:30: control 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.
• 18:30 – 06:30 (next day): nighttime road closure.
Controlled Work Zones within this section (08:00 – 16:00 daily):
Km marker Location Control Type
173.5 km Jiuqudong Tunnel east portal Released with general 5-time schedule
175.5 km Jinheng Tunnel west portal Released with general 5-time schedule
179.5 km Xipan section Dynamic traffic control
180.5 km Ning’an Bridge section Dynamic traffic control
183.1 km Near Changchun Bridge Dynamic traffic control

Vehicles waiting at either end of these work zones during release times will be allowed to pass before road closure resumes.
One-way split traffic (Taroko Entrance ↔ Changchun Tunnel):
• Westbound (Taroko → Tinaxiang): Shakadang Tunnel → Xila’an Tunnel → Changchun Tunnel → Tinaxiang.
• Eastbound (Tianxiang → Taroko): Provincial Highway 8 → Changchun Tunnel → Taroko Entrance.
Holiday Arrangements:
During long weekends and holidays (Teachers’ Day, Mid-Autumn Festival, National Day, Retrocession Day), Tinaxiang and Taroko control gates will operate as usual, but work zones will not enforce traffic control.

III. Temporary / Mobile Work Zones
Additional projects (e.g., asphalt milling and paving) will be scheduled in coordination with existing control gates and release windows to minimize traffic impact. Short-term dynamic control may be implemented, and separate announcements will be issued if needed.
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Important Reminder for Drivers
(Full 74 km section: Dayuling → Taroko Entrance)
• Eastbound (Dayuling → Taroko): It is recommended to reach Tinaxiang before 17:00 to avoid missing the 17:00 – 17:30 release.
• Westbound (Taroko → Dayuling): It is recommended to pass the Shakadang Tunnel east portal before 15:00 to avoid missing the 16:30 westbound release at Guanyuan.
⚠️ Due to ongoing slope stabilization and road repairs, traffic release times may be delayed or cancelled without notice due to weather or emergencies. Drivers should plan accordingly and check for real-time updates.
Stay informed via:
• DGH Real-Time Provincial Highway Info: https://168.thb.gov.tw
Contact Information
Taroko Maintenance Section, Eastern Region Branch, DGH
• Road Condition Hotline: 03-9962683
• Contact Person: Section Chief Chang Pei-Yun (03-8610775)
Last update: October 1, 2025
For the latest updates, please contact the Taroko Maintenance Section.

Road Open/ Road Repair Construction Traffic Control

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Provincial Highway 9 – Construction and Traffic Control Notice (October 2025)
1. Su-hua Improvement Project: Su’ao to Dong’ao Section
1. 104.9 km – 107 km (Baimi River Bridge Elevated Section)
Mobile road sweeping every Tuesday, 10:00 – 11:00 and 14:00 – 15:00. Please follow on-site instructions and drive cautiously.
2. 104.1 km – 113.4 km (Su’ao Tunnel, Dong’ao Tunnel, Dongyue Tunnel)
Electrical and Mechanical (E&M) inspection and maintenance from January 2 to December 31, 2025, daily 08:00 – 18:00 (excluding holidays). Fixed-location operations in turnout bays. Please drive carefully and follow traffic controllers’ instructions.
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2. Provincial Highway 9 – 116.95 km – 117.05 km (Dong’ao Section)
Slope stabilization works from September 26 to October 31, 2025, daily 08:00 – 17:00. Single-lane alternating two-way traffic under dynamic control. No work on holidays.
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3. Provincial Highway 9 – 117.6 km – 118.8 km (Xin’ao Tunnel)
Southbound tunnel inspection on October 2, 2025, 08:00 – 12:00. The southbound tunnel will be closed; the northbound tunnel will carry two-way traffic. Please follow on-site personnel.
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4. Provincial Highway 9 – 120.5 km (Nan’ao Section)
Slope stabilization works from September 15 to October 5, 2025, daily 09:00 – 17:00. Dynamic traffic control in effect. No work on holidays.
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5. Su-hua Improvement Project: Nan’ao to Heping Section
1. 125.5 km – 126.7 km (Nan’ao Beixi Bridge)
Road sweeping every Wednesday, 10:00 – 11:00.
2. 142.9 km – 144.35 km (Heping River Bridge Elevated Section)
Mobile road sweeping every Wednesday, 14:00 – 15:00.
3. 124.5 km – 145.1 km (Nan’ao to Heping Section)
E&M inspection and maintenance from January 2 to December 31, 2025, daily 08:00 – 21:00 (excluding holidays). Fixed-location operations in turnout bays.
4. 124 km – 145 km (Nan’ao to Heping Section, Su-hua Improvement)
Highway lighting and tunnel E&M maintenance works:
• October 7–8, 21:00 – 06:00 (next day): Northbound closed.
• October 13–14, 21:00 – 06:00 (next day): Southbound closed.
Traffic diverted to Provincial Highway 9D. Please follow LCS (Lane Control Signals) and on-site personnel.
5. 124.5 km – 145.1 km (Nan’ao to Heping Section, northbound)
Traffic control system maintenance and installation on October 13, 2025, 09:00 – 19:00. Right lane closed. Please follow LCS and on-site personnel.
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6. Provincial Highway 9D – 30 km – 50 km (Wuta to Guanyin Section)
Tree trimming works from September 30 to October 9, 2025, daily 08:00 – 16:00. Single-lane alternating two-way traffic under dynamic control. No work on holidays.
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7. Provincial Highway 9D – 38.35 km – 45.05 km (Guanyin to Aohua Section)
Four slope stabilization sites under construction from June 17 to October 31, 2025, daily 08:00 – 17:00. Dynamic traffic control in effect. No work on holidays.
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8. Su-hua Improvement Project: Hezhong to Heren Section
1. 149.1 km – 153.9 km (Zhongren Tunnel)
E&M inspection and maintenance from January 2 to December 31, 2025, daily 08:00 – 21:00 (excluding holidays).
2. 148.8 km – 154.2 km (Zhongren Tunnel)
Mobile road sweeping every Thursday, 14:00 – 16:00.
3. 149.1 km – 153.9 km (Zhongren Tunnel, Su-hua Improvement)
Traffic control system maintenance and installation works:
• October 15, 21:00 – October 16, 01:00: Southbound closed.
• October 20, 21:00 – October 21, 01:00: Northbound closed.
Please plan ahead and consider detouring via Provincial Highway 9D.
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9. Provincial Highway 9D – 61.2 km – 61.7 km (Hezhong to Heren Section)
Guardrail repair works from September 26 to October 5, 2025, daily 08:00 – 17:00. Partial single-lane alternating two-way traffic under dynamic control. (Holiday work without traffic control.)
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10. Su-hua Improvement Project: Heren to Daqingshui Section
1. 155.0 km – 158.2 km (Renshui Tunnel)
Mobile sweeping every Thursday, 10:00 – 11:00.
2. 155.0 km – 158.2 km (Renshui Tunnel)
E&M inspection and maintenance from March 3 to December 31, 2025, daily 08:00 – 18:00 (excluding holidays).
3. 155.1 km – 158.0 km (Renshui Tunnel, Su-hua Improvement)
Traffic control system maintenance on October 16, 2025:
• 20:00 – 22:00: Southbound lane closed, alternating northbound traffic.
• 22:00 – 24:00: Northbound lane closed, alternating southbound traffic.
Please follow LCS and on-site personnel.
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11. Provincial Highway 9 – 158.3 km – 164.3 km (Heren to Chongde Section)
Guardrail repair works from September 26 to October 5, 2025, daily 08:00 – 17:00. Partial alternating single-lane two-way traffic. (Holiday work without traffic control.)
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12. Provincial Highway 9 – 161.3 km – 162.8 km (Huide Tunnel)
Tunnel drainage improvement works from September 1 to December 30, 2025, continuous (19:00 – 17:00 next day). Single-lane alternating two-way traffic. No work on holidays (including preceding nights).
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13. Provincial Highway 9 – 164.5 km (Chongde Section)
Bridge reconstruction works from July 7 to December 23, 2025. Original bridge closed. Vehicles diverted to temporary detour roads. No work on holidays.
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Reminder for Mountain Roads
Due to earthquake impacts, falling rocks are common. Avoid entering mountain roads during or after heavy rainfall. Always monitor weather forecasts and road condition updates, and plan accordingly.
Stay informed via:
• DGH Real-Time Provincial Highway Info: https://168.thb.gov.tw

Open/
Provincial Highway 14A – Traffic Control Notice

Location: 0K+400, Wushe Section (both directions)
Date & Time: October 1, 2025, 08:00 – 17:00
Work: Emergency slope repair works occupying all lanes.

During the above period, the section at 0K+400 (Wushe) of Provincial Highway 14A will undergo full-lane slope stabilization works. Dynamic single-lane alternating two-way traffic control will be in effect. Please pay attention to traffic conditions and drive cautiously.
Road users are reminded to follow roadside Variable Message Signs (VMS). The Traffic Control Center will release real-time traffic information and provide driving suggestions as needed.
For diversion measures and real-time road conditions, please refer to:
• Directorate General of Highways (DGH) official website: http://www.thb.gov.tw