obstruct
Definitions
To block or close up with an obstacle; to make passage difficult or impossible.
To hinder, delay, or prevent the progress, development, or accomplishment of something.
Examples
The fallen tree continued to obstruct the main road, causing a massive traffic jam.
Do not let your personal biases obstruct your ability to make a fair decision.
Large pillars were placed in the lobby, which seemed to obstruct the flow of visitors.