The common lumens for street lights are between 5000 and 10000. As the efficiency of the LED lights is about 100-160 lm/W, you may need LED lights with a power of 50-60 W. Lumens are humans’ perceptions of brightness. On some busy roads, the lumens need to be around 15000. For the same lumens, since LED lights have a higher efficiency, their power can be lower than that of other lights.
More reading: How Many Lumens Do I Need for Outdoor Lighting?