It is also located by Batang Mukah, a river which flows to the South China Sea.

[1] Selangau traders serve commuters along the Sibu-Bintulu trunk road on Pan Borneo Highway and workers from surrounding oil palm plantations with daily necessities.

Selangau have accessibility of sea and land transportation via cars, trucks, bus and boats.

Selangau included in Pan Borneo Highway project (WPC 08; Sg.

Arip Bridge) and was managed by Lebuhraya Borneo Utara Sdn Bhd (LBU) as a turnkey contractor.

The main purpose of this project is replacing the existing two-lane carriageway at the old road to new four-lane two-way carriageway, including a few new lanes and constructing of an interchange at Mukah junction and new bridges, including new Batang Mukah Bridge.

The main contractor of this project is Musyati Mudajaya JV (MMJV) Sdn Bhd.

There is a weekend bazaar at Selangau where natives could sell their jungle produce to their customers.