| Tianshengqiao-I Dam | |
| Name Official: | Tianshengqiao-I Hydropower Station |
| Dam Crosses: | Nanpan River |
| Dam Type: | Embankment, concrete face rock-fill |
| Dam Length: | 11040NaN0 |
| Dam Height: | 1780NaN0 |
| Plant Hydraulic Head: | 1430NaN0 (Gross) |
| Dam Volume: | 48000000NaN0 |
| Spillway Type: | Service chute, controlled |
| Construction Began: | 1992 |
| Opening: | 2000 |
| Res Name: | Tianshengqiao-I Reservoir |
| Res Capacity Total: | 10257000000m2 |
| Res Catchment: | 501390NaN0 |
| Res Surface: | 173.70NaN0 |
| Plant Turbines: | 4 × 300 MW Francis turbines |
| Plant Capacity: | 1,200 MW |
| Plant Commission: | 1998-2000 |
| Location Map: | China |
| Coordinates: | 24.9414°N 105.1069°W |
The Tianshengqiao-I Dam (locally abbreviated as TSQ-I) is a concrete face rock-fill embankment dam and hydroelectric power station on the Nanpan River straddling the border between Guizhou and Guangxi, People's Republic of China, located in the counties of Anlong and Longlin. The dam is 1780NaN0 tall, and was completed in 1998. Water from the dam's reservoir powers four generators with Francis turbines, each with a capacity of .[1] Water released from the dam also powers Tianshengqiao-II Dam (TSQ-II) downstream. The power is transmitted to Guangzhou via HVDC Tian-Guang and an AC powerline.