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State highways cross streams and rivers in thousands of places in Washington state. At many of those locations, culverts are too small or otherwise inadequate to allow fish to migrate upstream and downstream as necessary for growth and reproduction. WSDOT has worked for more than two decades to improve fish passage and reconnect streams. A single removed barrier can deliver impressive benefits, improving fish access for miles both upstream and downstream. When rivers and streams are connected, fish can better access the habitat they need. This is an important component of protecting and restoring fish populations, which can in turn have multiple benefits - including for commercial and recreational fishing industries.