The tolled area, with two entrances/exits at the south end, Ting Kau Bridge and Tuen Mun Road at Ting Kau, crosses Tai Lam Country Park to its north end at Pat Heung.

[3] According to the Transport Department of the Government of Hong Kong statistics, Tai Lam Tunnel has higher-than-average safety records.

For coaches, it is the highest in the city, about 4 times higher than the longer Tate's Cairn Tunnel.

As of January 2025, the Hong Kong Transport and Logistics Bureau had suggested time-varying toll fees for the funnel.

[10] To keep pace with technology development, Tai Lam Tunnel has gradually replaced traditional light bulbs with light-emitting diodes (LEDs).