Truckee–Carson Irrigation District
（重定向自TCID）
- TCID may also stand for "Tissue Culture Infectious Dose." or "4,5,6,7-Tetrachloro-1H-indene-1,3(2H)-dione"
The Truckee–Carson Irrigation District (TCID) is a political subdivision of the State of Nevada, which operates dams at Lake Tahoe, diversion dams on the Truckee River in Washoe County, and the Lake Lahontan reservoir.
TCD also operates 380 miles (610 km) of canals, and 340 miles (550 km) of drains, in support of agriculture in Lyon County and Churchill County, western Nevada. The excess irrigation water eventually drains into the endorheic Lake Lahontan Basin.