Time Trial Course - H10/22

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H10/22 - A404 Ten

Map of H10/22.

OS Ref. Description Dist
SU863877 START 1 yard short of the "Clearway" sign on the southbound slip road from the A4155 roundabout to the A404 north-east of Marlow 0.000
Join the A404 under the footbridge, giving way to traffic on A404 from the right. (Advance Sign) 0.297
SU851847 Continue on A404 over the river Thames bridge to the roundabout junction with A308. (Care, M1) 1.994
Take the second exit to continue southwards on A404  
Continue straight on past the slip road to the A4130 (Care). 3.406
SU858806 Bear left (M2) up the slip road to the A4 Maidenhead Thicket roundabout, circle around it (Care) and take the 4th exit back onto the A404 (M3, M4, M5) (Care of very fast traffic from the right coming off the A404M) (Advance Sign) 5.279
SU850847 Continue northwards on A404 straight on past the slip road to A4130 to the roundabout with A308. (Care on very fast descent into roundabout) 8.363
SU860865 Take the second exit, still on A404. Care. Give way to traffic from the right and that emerging with poor visibility from the road from Bisham on the left (sign) (M6, M7) 9.593
SU863870 Continue on A404 to FINISH at a point 189 yards south of and before the centre of the footbridge over the A404 to the Marlow Office Park, 23 yards before the large road sign to "Wycombe A404, Aylesbury A4015, Marlow and Bourne End A4155", a yard before the third drain before that sign and in line with a lamp post in the adjoining road in the Office Park. 10.000


  1. A car cannot be parked at the finish point. The dividing hedge between the A404 and the adjoining Office Park road (Parkway) is too thick to provide sight of the finish point but there is ample room inside the guard rail for a seated timekeeper and number-taker and for easy cycle parking. Alternatively the finish line could be advanced by 23 yards to the large road sign where the hedge could be pruned sufficiently for a timekeeper in a car parked in the adjoining road to work with a number taker on the A404 verge.
  2. Sunday morning or Bank Holiday use only. The last rider should be clear of the A404 by 10 am. Riders must not stop at the finish but continue up the slip road to the A4155 (Care of traffic from the right) and take the second exit back to the HQ at Liston Hall, Chapel Street, Marlow.


Open: n/a
Club: n/a