| Country: | MYS |
| Type: | Federal |
| Route: | 21 |
| Alternate Name: | Jalan Serian–Tebedu |
| Length Km: | 50 |
| Direction A: | Northeast |
| Terminus A: | Serian |
| Junction: | Kuching-Serian Highway (Sg. Mamat Bridge-Serian Roundabout) Serian/Tebakang Old Link Road Old Serian-Tebakang-Tebedu-Indonesian Border Road Baki-Riih Road Muara Mongkos Road |
| Direction B: | Southwest |
| Terminus B: | Tebedu |
| Destinations: | Tebakang Mongkos Kalimantan (Indonesia) |
Jalan Serian–Tebedu, Federal Route 21, is a major highway in Serian Division, Sarawak, Malaysia.[1] It is a dual lane road that is maintained by PPES Works Sdn. Bhd., a subsidiary of CMS Road. It connects Serian roundabout to Tebedu. Among other major destinations branched out from this route are Riih, Tebakang and Mongkos. It is a major route to West Kalimantan, Indonesia and is frequently used by people from both Malaysia and Indonesia to cross the border. Along this road are many scattered houses, privately owned orchards, churches, primary schools and chapels. It branches out to many small villages such as Kg. Kakai and Kg. Tian. GIATMARA institution of Serian district is also located here.
The Kilometre Zero is located at Tebedu town.
| Km | Exit | Interchange | To | Remarks | |
|---|---|---|---|---|---|
| Serian Serian Roundabout | North Pan Borneo Highway Jalan Kuching–Serian (Kuching/Samarahan Boundary–Sg. Mamat Bridge) Jalan Kuching–Serian (Sg. Mamat Bridge–Serian Roundabout) Siburan Kota Samarahan Kuching East Serian Bypass Taman Pasir Jalan Serian–Sri Aman Simunjan Sri Aman Southeast Jalan Bandar Serian Serian Hospital Serian town centre Jalan Serian–Sri Aman Simunjan Sri Aman | 4-way roundabout | |||
| Serian (old link road) | East Serian-Tebakang Old Link Road Kg. Murud Balai Bomba dan Penyelamat Serian | T-junctions | |||
| Old Serian-Tebakang Road | East Serian-Tebakang-Tebedu-Indonesian Border Old Link Road Kg. Tian | T-junctions | |||
| Serian-Tebedu district border | |||||
| Baki-Riih | Northwest Baki-Riih Road Pekan Baki Lama Kg. Riih Mawang Kg. Riih Daso Kg. Rituh Kg. Bantang Kg. Pichin Kg. Tanggak Kg. Tubih Kg. Tubih Mawang | T-junctions | |||
| Muara Mongkos Road | Northwest Muara Mongkos Road Kg. Tebakang Dayak Kg. Tebakang Melayu Mongkos Tebakang/Mongkos Junction-Sg. Nyanuh Bridge Sg. Nyanuh Bridge Tebakang Bunan Kg. Bung Padus Kg. Bunan Gega Kg. Bunan Punok Kg. Gahat Mongkos Kg. Mapu Kg. Mapu Tragu Kg. Mentu Pondok Kg. Mentu Mawang Kg. Mentu Tapu | T-junctions | |||
| Tebedu Inland Port | Tebedu Inland Port | ||||
0 | Tebedu | Bandar Mutiara Land Port Tebedu Duty Free Shop Kg. Darul Iman Kg. Tebedu Melayu Kg. Tebedu Bidayuh | |||
| Tebedu Checkpoint | |||||
| Malaysia Sarawak Serian Division Tebedu district border | |||||
| ASEAN Malaysia-Indonesia Border | |||||
| Indonesia West Kalimantan Sanggau district border | |||||
South IndonesiaWest Kalimantan Entikong Checkpoint Balai Karangan Pontianak | |||||