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小山水电站面板堆石坝施工导流采用一次截流隧洞导流方式，通过将大坝围堰挡水标准由初设２０年洪水重现期改为１０年洪水重现期；施工过程中及时调整导流洞衬砌型式；以及出口段提前进洞等技术方案为工程节约投资５００万元。
The construction diversion of Xiaoshan Hydropower Station rockfill dam adopts a diversion tunnel diversion method. By changing the water retaining standard of dam cofferdam from initial 20-year flood period to 10-year flood recurrence period, Flowing tunnel lining type; and exit section ahead of the hole and other technical programs for the project to save 5000000 yuan investment.