The A898 has two junctions. The first, located south of the bridge is known locally as Spectacles Interchange. This junction has long slip roads that face south away from the bridge providing full access to and from the motorway. This layout was deliberately chosen to suit the toll plaza for the Erskine Bridge. The slip roads were once two lanes wide, but in recent years have been narrowed to single width due to safety reasons. The second provides free flow links with the A82 at its northern end.

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More detail on the planning, design and construction of the A898 can be read on our Erskine Bridge article.