History of the Galveston Bay Area build confidence in the safety of the port. One of the most immediate effects of the dike, however, was to increase the salt levels in West Bay, between Galveston and the southwest coastline. Major tracts of the Allen Ranch were liquidated opening up new development around Pasadena and other bayside communities. Commercial fishing for oysters and shrimp grew as a significant area industry. The lumber industry also continued to grow. A sugar refinery opened in Texas city, a paper mill in Pasadena, and other factories in the early 20th century. Following the petroleum discovery at Spindletop (roughly from Galveston Bay)
Battle of Galveston to destroy the grounded "Westfield" with explosives rather than let it fall into enemy hands. Renshaw and several Union troops were subsequently killed when the explosives were set off too early. Union troops on shore were convinced that their own ships were surrendering and, therefore, laid down their arms. The remaining U.S. ships did not surrender and succeeded in retreating to Union-controlled New Orleans. The Union blockade around the city of Galveston was lifted temporarily for four days, and Galveston remained the only major port that remained in Confederate hands at the end of the war. The Confederate Congress stated