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Guidance: River Thames: distances and measurements for boaters

Environment Agency

September 20
15:18 2024

If you are planning to boat on the River Thames, you may also find our locks and facilities for boaters page useful.

Distances and travel times between locks

The following table lists the distances between locks from Cricklade Bridge downstream to Teddington Lock. It also gives an estimated travel time based on the speed limit of 8 kilometres per hour (approximately 5 miles per hour).

Name of lock Distance to next lock downstream (km) Distance to next lock downstream (miles) Time to next lock downstream at 8 km/h (minutes)
Cricklade Bridge 18.88 11.73 142
St Johns Lock 1.85 1.15 15
Buscot Lock 5.37 3.34 41
Grafton Lock 2.98 1.85 23
Radcot Lock 4.23 2.63 32
Rushey Lock 6.92 4.30 52
Shifford Lock 7.63 4.74 58
Northmoor Lock 6.21 3.86 47
Pinkhill Lock 2.38 1.48 18
Eynsham Lock 4.37 2.71 33
Kings Lock 1.81 1.13 14
Godstow Lock 3.87 2.40 30
Osney Lock 3.73 2.32 28
Iffley Lock 2.70 1.68 21
Sandford Lock 7.38 4.58 56
Abingdon Lock 4.15 2.58 32
Culham Lock 4.52 2.81 34
Clifton Lock 4.80 2.98 36
Days Lock 6.37 3.96 48
Benson Lock 10.46 6.50 79
Cleeve Lock 1.00 0.62 8
Goring Lock 6.55 4.07 50
Whitchurch Lock 3.67 2.28 28
Mapledurham Lock 7.08 4.40 54
Caversham Lock 4.23 2.63 32
Sonning Lock 4.68 2.91 36
Shiplake Lock 4.80 2.98 36
Marsh Lock 4.59 2.85 35
Hambleden Lock 5.89 3.66 45
Hurley Lock 1.03 0.64 8
Temple Lock 2.70 1.68 22
Marlow Lock 6.44 4.00 49
Cookham Lock 3.35 2.08 26
Boulters Lock 3.43 2.13 26
Bray Lock 5.10 3.17 39
Boveney Lock 3.75 2.33 29
Romney Lock 4.83 3.00 37
Old Windsor Lock 4.70 2.92 36
Bell Weir Lock 4.57 2.84 35
Penton Hook Lock 3.13 1.95 24
Chertsey Lock 3.32 2.06 25
Shepperton Lock 4.75 2.95 36
Sunbury Lock 4.79 2.98 36
Molesey Lock 7.74 4.81 59
Teddington Lock (to Teddington Boundary Obelisk) 0.39 0.24 3

Bridge heights

The following table gives the headway of bridges over the River Thames. This is the distance between the standard water level and the highest point of the underside of the bridge.

These distances are approximate. Remember that river levels fluctuate and these distances will change with the river conditions.

Bridge Headway (metres) Headway (feet)
Halfpenny Bridge, Lechlade 4.73 156
St Johns Bridge 4.22 1310
Bloomers Hole footbridge 3.50 116
Eaton footbridge 2.97 99
Radcot Bridge 3.45 114
Old Mans footbridge 4.27 140
Tadpole Bridge 4.52 1410
Tenfoot footbridge 3.71 122
Shifford Lock Cut Bridge 3.66 120
Newbridge 3.50 116
Harts footbridge 3.27 109
Swinford Bridge 4.49 149
Oxford Western Bypass Bridge 4.11 136
Godstow Bridge 2.56 85
Medley footbridge 3.05 100
Osney Bridge 2.28 76
Osney Railway Bridge 3.55 118
Road Bridge 3.71 122
Grandpont Bridge 3.91 1210
Folly Bridge 3.12 103
Donnington Bridge 5.03 166
Isis Bridge 5.03 166
Kennington Railway Bridge 4.11 136
Nuneham Railway Bridge 4.80 159
Abingdon Bridge 4.24 1311
Culham Lock Cut Bridge 3.78 125
Culham Road Bridge 4.49 149
Appleford Railway Bridge 3.96 130
Clifton Lock Cut Bridge 4.06 134
Clifton Hampden Bridge 4.09 135

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