Monitoring and alerting systems for detecting hazardous conditions at loading docks are disclosed. An example monitoring and alerting system includes a first sensor system to monitor a location of a first brace of a first dock station of the loading dock. The first brace being positionable in a first stored position, a first operative position, and a first transition position, where the first transition position is between the first stored position and the first operative position. A second sensor system is to monitor a location of a second brace of a second dock station of the loading dock adjacent the first dock station. The second brace is positionable in a second stored position, a second operative position, and a second transition position, where the second transition position is between the second stored position and the second operative position. A first signaling device at the first dock station is responsive to outputs of the first sensor system and the second sensor system. A second signaling device at the second dock station is responsive to outputs of the first sensor system and the second sensor system.