Basin Bang Pakong
Nakhon Nayok River
แม่น้ำนครนายก
Rises in the Khao Yai mountains and has the Khun Dan Prakan Chon Dam. It flows through Nakhon Nayok town and joins the Prachin Buri River to form the Bang Pakong River.
Key facts
- Length
- about 115 kmMeasured along the river on this map; official figures can differ with the method used
- Source
- Nakhon Nayok province
- Flows into
- Bang Pakong River, Prachin Buri province
- Basin
- Bang Pakong
- Provinces (3)
- Nakhon Nayok, Prachin Buri, Chachoengsao
- Dams on the river
- Khun Dan Prakan Chon Dam
Nakhon Nayok River water level today
4 automatic gauging stations on this river, highest water relative to the bank first. As of 29 Sep 2026, 19:50
| Station | Location | Level (m MSL) | Of bank-full | Status | Measured |
|---|---|---|---|---|---|
| Khao Nang Buat Bridge | Mueang Nakhon Nayok District, Nakhon Nayok | 9.62 | 111% | Over the bank | 29 Sep 2026, 19:50 |
| Ongkharak | Ongkharak District, Nakhon Nayok | 2.79 | 104% | Over the bank | 29 Sep 2026, 10:00 |
| สะพานหน้าจวนผู้ว่าฯ | Mueang Nakhon Nayok District, Nakhon Nayok | 8.28 | 101% | Over the bank | 29 Sep 2026, 19:00 |
| บ้านเขานางบวช | Mueang Nakhon Nayok District, Nakhon Nayok | 8.44 | 94% | High | 29 Sep 2026, 19:00 |
Data from the National Hydroinformatics Data Center (ThaiWater), HII, refreshed every 10 minutes
Frequently asked questions
- Which provinces does the Nakhon Nayok River flow through?
- The Nakhon Nayok River flows through 3 provinces: Nakhon Nayok, Prachin Buri and Chachoengsao.
- How long is the Nakhon Nayok River?
- The Nakhon Nayok River is about 115 km long, measured along the river on this map. Official figures can differ slightly with the method used.
- Where does the Nakhon Nayok River come from?
- The Nakhon Nayok River rises in Nakhon Nayok province.
- Which river does the Nakhon Nayok River flow into?
- The Nakhon Nayok River flows into the Bang Pakong River in Prachin Buri province.
- Which dams are on the Nakhon Nayok River?
- Dams on the Nakhon Nayok River on this map: Khun Dan Prakan Chon Dam.
- What is the Nakhon Nayok River water level today?
- Of 4 gauging stations, 3 are over the bank and 1 have high water. Data as of 29 Sep 2026, 19:50.
- What is the Nakhon Nayok River called in Thai?
- In Thai the Nakhon Nayok River is แม่น้ำนครนายก.