|Length:||7.8 miles (12.6 km)|
|Meets:||A803, B8046, B8020, B800|
|Route outline (key)|
The B9080 provides an alternative back route between Linlithgow and Kirkliston as well as serving as the main access route to the town of Winchburgh. It follows the original route of the A9 in West Lothian, before that road was downgraded following the arrival of the M9 in the early 1970s.
The B9080 begins its life at a mini-roundabout in the centre of Linlithgow, where it meets the A803. Heading East we pass under the main Edinburgh to Glasgow railway at a single-track traffic-light-controlled T-junction and head into a residential area. Reaching the outskirts of Linlithgow we pass under the Union Canal and the road turns first to 40mph and then NSL as we pass through arable farmland.
Our next landmark is the hamlet of Kingscavil, which we pass through before soon the limit drops to 40 as we enter another hamlet, Threemiletown. Here, our road is crossed by the B8046 at a lengthy staggered crossroads. On the far side of the hamlet we return to NSL and pass through heavily wooded farmland before the limit drops to 40mph about 1 mile outside of the town of Winchburgh, where the limit drops to 30mph. After going over the Union Canal we reach the centre of Winchburgh, where we pick up the B8020 from the right which multiplexes through the town centre and past some traditional terraced mining cottages, after which the B8020 turns off to the left.
Soon we leave the town behind and pass over the M9, and the road straightens up as we pass through open farmland, before passing under the M90, at which point we drop to 30 as we enter the town of Kirkliston. A mini-roundabout takes us into the town proper and we pass through a typical suburban residential area, which leads us into a traditional Victorian town centre, where the B9080 ends at a traffic-light-controlled junction, where it meets the B800.
Ahead to the east the original route of the A9 continues as an unclassified road but after a gyratory and a bridge over the River Almond the road reaches a dead end at an emergency gate to Edinburgh Airport. The road reappears on the far side of the runway and follows Turnhouse Road to the A8 in North Gyle. This road was also designated as B9080 following the A9 downgrade but it was declassified when it was severed by the airport runway.