The Development of the Rogfast Subsea Road Tunnel in Norway

挪威 Rogfast 海底公路隧道的開發

Jun 22, 2026, 12:10
EuropeTechnology

Introduction

Norway is currently building the Rogfast project, which is expected to become the world's longest and deepest subsea road tunnel once it is finished.

挪威目前正在建設 Rogfast 項目，預計完工後將成為全球最長且最深的海底公路隧道。

Main Body

The Rogfast project is managed by the Norwegian Public Roads Administration. It involves building a 26.7-kilometer highway that reaches a maximum depth of 390 meters below sea level. This new road is designed to improve travel between Stavanger and Bergen by replacing two ferry routes, which will reduce travel time by about 40 minutes. Several construction companies, including Skanska, Implenia, and Stangeland, are working from both ends of the tunnel and expect to meet in 2029.

Rogfast 項目由挪威公共道路管理局管理。該項目涉及建設一條 26.7 公里的公路，最高深度達海平面以下 390 公尺。這條新路旨在透過取代兩條渡輪航線，來改善斯塔萬格與卑根之間的交通，將縮短約 40 分鐘的旅程時間。包括 Skanska、Implenia 和 Stangeland 在內的多家建設公司正從隧道兩端施工，預計於 2029 年會合。

Regarding the technology, engineers are using the 'drill-and-blast' method. This technique is popular in Norway because it allows workers to adapt to different types of rock, such as granite and gneiss. To prevent high-pressure seawater from leaking into the tunnel, the team uses a strict process of exploratory drilling and 'grouting,' which means injecting a cement mixture to seal cracks. Furthermore, they use steel rods and reinforced concrete to ensure the structure remains strong.

關於技術方面，工程師採用「鑽爆法」。這種技術在挪威十分普遍，因為它允許工人適應不同類型的岩石，例如花崗岩和片麻岩。為了防止高壓海水滲入隧道，團隊採用嚴格的探孔鑽探與「灌漿」程序，即注入水泥混合物以密封裂縫。此外，他們使用鋼桿與鋼筋混凝土以確保結構強度。

There are also several logistical and environmental challenges. For example, two large ventilation shafts must be installed on Kvitsøy island to remove car exhaust fumes. Additionally, the project includes protections for local lobster and cod populations by monitoring the waste rock removed from the seabed. Finally, to prevent drivers from becoming tired or bored in the dark tunnel, the administration plans to install artistic lighting, similar to the system used in the Ryfylke tunnel.

此外還面臨若干物流與環境挑戰。例如，必須在 Kvitsøy 島安裝兩座大型通風井以排出汽車廢氣。此外，該項目透過監控從海床移除的廢岩，來保護當地的龍蝦與鱈魚種群。最後，為了防止駕駛者在黑暗的隧道中感到疲勞或乏味，管理局計劃安裝藝術照明，類似於 Ryfylke 隧道所採用的系統。

Conclusion

The Rogfast tunnel is expected to open by 2033, providing a high-capacity connection beneath the Boknafjord and Kvitsøyfjord.

Rogfast 隧道預計於 2033 年啟用，將在 Boknafjord 與 Kvitsøyfjord 之下提供一個高容量的連接通道。

Vocabulary Learning

⚡ The "B2 Leap": From Simple Sentences to Complex Links

At the A2 level, you likely say: "Norway is building a tunnel. It is very deep. It will replace ferries."

To reach B2, you must stop using short, choppy sentences. You need to bridge your ideas using logical connectors. Look at how the article does this:

🧩 The Connector Toolkit

1. The "Adding Info" Bridge Instead of just saying "and," the text uses:

  • Furthermore →\rightarrow "Furthermore, they use steel rods..."
  • Additionally →\rightarrow "Additionally, the project includes protections..."

2. The "Purpose" Bridge Instead of saying "They do this because they want to...", the text uses:

  • To + Verb →\rightarrow "To prevent high-pressure seawater from leaking..."
  • By + Verb-ing →\rightarrow "...by monitoring the waste rock..."

3. The "Comparison/Example" Bridge

  • Similar to →\rightarrow "...similar to the system used in the Ryfylke tunnel."
  • Such as →\rightarrow "...different types of rock, such as granite and gneiss."

🛠️ Upgrading Your Vocabulary (A2 →\rightarrow B2)

If you want to sound more professional, swap these "Basic" words for "B2" words found in the text:

A2 Word (Basic)B2 Word (Advanced)Context in Text
Change/FixAdapt"adapt to different types of rock"
Stop/BlockPrevent"prevent drivers from becoming tired"
Make sureEnsure"ensure the structure remains strong"
Big/StrongHigh-capacity"providing a high-capacity connection"

💡 Coach's Pro-Tip

The B2 secret is not about using 'big' words; it is about how you glue your ideas together. Use 'Furthermore' and 'To [do something]' in your next writing piece to immediately sound more fluent.

Vocabulary Learning

adapt (v.)
To change something to make it suitable for a new purpose or situation.
Example:The construction team had to adapt their methods to deal with the hard granite rock.
exploratory (adj.)
Done in order to discover or learn more about something.
Example:The engineers conducted exploratory drilling to check for water leaks before digging.
reinforced (adj.)
Strengthened with additional material, such as steel rods in concrete.
Example:Reinforced concrete is essential for ensuring the tunnel walls can withstand the pressure.
logistical (adj.)
Relating to the detailed organization and implementation of a complex operation.
Example:Moving thousands of tons of rock out of the tunnel presented several logistical challenges.
ventilation (n.)
The provision of fresh air to a room or building.
Example:Proper ventilation is necessary in tunnels to remove dangerous exhaust fumes from cars.
monitoring (v.)
Observing and checking the progress or quality of something over a period of time.
Example:The government is monitoring the local fish populations to ensure the project doesn't harm them.
high-capacity (adj.)
Able to hold, produce, or handle a large amount of something.
Example:The new highway provides a high-capacity connection, allowing more vehicles to pass through quickly.
Practice B2 words in a crossword→