Work to re-build the Borders railway line is now underway, but while bridges are built and tracks are laid, construction workers need to think about protecting the local wildlife.
The track crosses over the River Tweed, which is home to otters, protected fish and a variety of flowers.
Jenny Longden has been visiting the site to find out what is being done to keep them safe:
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Kerrie Gosney brings you Sunday night's forecast
Cold with wintry showers, risk of some snow and ice early Monday.
The Met Office have issued a warning for snow showers and icy strectches from Saturday evening until 10 am Monday