What is the maximum speed limit on most interstate highways in Washington?

The maximum speed limit on most interstate highways in Washington is 70 mph. This limit is set to provide a balance between efficient transportation and safety on high-capacity roadways, allowing vehicles to travel at higher speeds while still promoting safe driving practices. Interstate highways are designed for fast, long-distance travel, which is why such a speed limit is implemented. It's important for drivers to be aware of these limits, as they can vary depending on specific locations, but the general maximum is 70 mph. This standard helps to maintain consistent flow of traffic and reduces the risk of accidents associated with significant speed differentials between vehicles.