They have been damaged and repaired repeatedly, but they retain what appears to be their original hydraulic capacities. When flooding occurs, Martin Luther King Jr. Blvd. This allows the elegant but undersized hydraulic structures to survive. The average dry weather flow of the Doan Brook is modest. The discharge of Lower Shaker Lake is generally 10-20 cfs.
Flows are much different during wet weather conditions.
The channelization was completed by 1926. In 1955 another major round of renovation was required. Prior to 1959 it is not clear whether this damage accumulated gradually or was the result of a few major storms. A similar storm dropped 1.5 in. This was followed by a similar storm one week later that produced similar effects.