APAI designed a raw water pump station at Eagle Mountain Lake for the City of Fort Worth, Texas, with an ultimate capacity of 180 mgd. The pump station is located at the toe of the dam and is configured on piers to reduce risk of undermining the dam integrity. The pump station design included a 90-inch-diameter suction header with branches to six pump slots. The branches are accessible under the elevated structure. The initial design included two bottom feed, 2,500-HP, and horizontal split case pumps. The pumps start against a resilient seated ball valve controlled by an air-over oil actuator. The actuator closes slowly in the event of a power failure to prevent surges. A surge-anticipation/relief valve is also included in the design to reduce surges.