Stwlan Dam Bike Climb - PJAMM Cycling

2.7
FIETS
1.8 mi
DISTANCE
909 ft
GAINED
9.9 %
AVG. GRADE

FULL CLIMB STATS

INTRO

This bike climb along a service road to Stwlan Dam is an incredible ride that is surprisingly included in neither 100 Greatest Cycling Climbs, Britain, nor Another 100 Greatest Cycling Climbs.  Those who have done this climb invariably refer to it with great admiration: "amazing climb," "awesome climb," "stunning."
 
There are eight Stelvio Bormio side constant radius hairpins leading to the dam, no doubt constructed delivery of long and heavy material to the dam project which began in 1957. 
9.9% average grade gaining 277 meters in 2.8 kilometers with 0 descent.  Other than 400 meters at 2.5% in the middle of the climb, this is a beast with 67% at grade 10-15%.  The steepest 500 meters averages 12.1%.  

See more details and tools regarding this climb's grade via the “Profile Tool” button.
Roadway:  Great condition - very narrow service road.

Traffic:  Walkers/hikers and cyclists and a rare service vehicle. 

Parking:  If you drove to Tanygrisiau to do this climb (it would be worth the drive!), park on the side of the road 60 meters from the start of the climb (MapStreet View). 
Provisions:  At the Lakeside Café 600 meters south of the start of the climb (MapGoogle Map + Reviews).  
Use the “Routes in Area” button on the menu bar to see other bike climbs in this area. 

Consider visiting the Zip World Slate Caverns while in the area, 3.8 km north (Map;  Google Map + Reviews). 

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