Tarnwick Locks Eleven narrow locks · Tarnwick Canal

Folio 02

The flight

Numbered from the bottom, Basin Lock to Top Lock. 27.6 m of fall and 1,261 m³ of water for one boat going up.

One lock

Lock 7 · Rope Walk Lock

Section through Lock 7, Rope Walk LockFall 2.6 m. Chamber 21.3 m long and 2.2 m wide. 1.20 m of water over the cill. Fills in 7 min.Fall 2.6 mChamber 21.3 mLower poundUpper poundBottom gatesTop gates1.20 m over cill
Chamber empty, level with the lower pound.

All eleven

Every chamber is 2.2 m wide. Fill times in brackets are with both paddles working.

All eleven locks
LockFall mLength mOver cill mFill minWater m³PondStatus
1 Basin Lock2.421.31.207112NoOpen
2 Wharf Lock2.621.31.158122YesOpen
3 Tannery Lock2.118.01.10683NoOpen
4 Kiln Lock2.318.01.10791NoOpen
5 Engine Lock2.821.31.259131YesOpen
6 Long Pound Lock2.521.31.2013 (8)117NoRestricted
7 Rope Walk Lock2.621.31.207122NoOpen
8 Chapel Lock2.721.31.208127YesOpen
9 Sluice Lock2.921.31.2510136YesOpen
10 Toll House Lock2.421.31.157112NoRestricted
11 Top Lock2.321.31.207108NoOpen

Long profile

Long profile: 11 locks, 27.6 m of fall over 2.4 km123456789101101020Basin entrance, 0 kmHollin Pound, 2.4 kmm
Metres above the Basin against distance from the Basin entrance. Heights exaggerated.