Logged Visits:

28th Jan 2023  07:55  by peregrinus

FB Number: Not logged  Condition: Possibly missing  Score: 5/10

Good work ted. Revisit in passing. GPS indicates halfway along far edge of covered reservoir as viewed from road

14th Jan 2022  11:11  by eon

FB Number: Not logged  Condition: Possibly missing  Score: 1/10

(2353) Good work by ted. It would appear the rivet is no longer. This seems to be backed up by others who have had a closer look.

Yearsley reservoir hatch ©eon

1st Aug 2019  13:05  by ted

FB Number: Not logged  Condition: Possibly missing  Score: 0/10

Details from the OS archive at Kew and a follow-up visit to the site. The Yearsley rivet dates from July 1965 and was installed as a replacement for the trig pillar. It was placed on a rectangular concrete slab, approx mid-way along the NE side of the reservoir. A letter, dated 9/7/65, refers to a distance of approx 57 metres from the pillar whereas an observation dated 20.7.65 put the rivet at 61.137m from the pillar. The pillar was subsequently destroyed when a new reservoir was constructed. A letter, dated February 1968, confirms the demise of the pillar. The original sketch, dated 29 July 1965, shows two hatch covers aligned to the SE edge of the slab. Whilst there are still two covers at this location, they now occupy a different position. The OS record for the rivet was updated in April 1970 to record the position of four witness marks, as shown on the revised sketch. From this, the dimensions of the slab are estimated as 2.885 by 1.711 metres with the rivet at a distance of 2.246m perpendicular to the SW edge of the slab, 0.638m from the NE edge, 0.496m from the NW edge and 1.216m from the SE edge. The smaller hatch cover therefore appears to be on top of the rivet. This suggests that the concrete slab may have been replaced or, if retained, that the rivet was lost when the hatches were reconstructed. (postscript) The rescaling of the OS documents on upload has resulted in a slight loss of detail. Please let me know if the originals would be of interest.

Yearsley Resr Side view of hatch from field
Yearsley Resr OS correspondence, July 1965
Yearsley Resr OS document: Separation of rivet from pillar
Yearsley Resr OS document: Original sketch
Yearsley Resr OS document: Revised sketch

28th Dec 2018  15:30  by sheepsocks

FB Number: Not logged  Condition: Inaccessible  Score: 4/10

There for the active station

3rd Nov 2018  20:53  by Ant1974

FB Number: Not logged  Condition: Inaccessible  Score: 5/10

3rd Nov 2018  00:00  by ngthack

FB Number: Not logged  Condition: Inaccessible  Score: 5/10

16th Aug 2018  18:15  by g0deb2

Gridref: SE 58800 74400   FB Number: Not logged  Condition: Couldn't find it  Score: 5/10

Amateur Radio. HEMA Activation.

11th Mar 2018  08:40  by jonglew

FB Number: Not logged  Condition: Couldn't find it  Score: 5/10

GR led me to a hatch cover approx centre of the NE edge of the covered reservoir. There were some bumps and irregularities under thick green paintwork, but nothing that look as though it may have been a rivet. Jury's out on this one.

Gates TP17701©jonglew
It should be on the concrete hatch surround TP17701©jonglew

11th Aug 2016  14:50  by Particle

FB Number: Not logged  Condition: Inaccessible  Score: 6/10

No access.

28th Jun 2016  07:46  by boblynoriho

FB Number: Not logged  Condition: Inaccessible  Score: 2/10

Stopped to look en route to York. Didn't feel like jumping the fence to find out if it was there!

Yearsley reservoir ©boblynoriho

17th Apr 2016  08:40  by painterman61

FB Number: Not logged  Condition: Inaccessible  Score: 5/10

Could be there if you know where to look and are game for climbing the fences

21st Apr 2015  10:23  by The RockKnocker

Gridref: SE 58866 74471   FB Number: Not logged  Condition: Inaccessible  Score: 1/10

Like the previous log said "who knows if it there or not !

This is as close as i got !

15th Apr 2015  15:55  by Analoguesat

FB Number: Not logged  Condition: Inaccessible  Score: 4/10

If its still there its inaccessible on the reservoir which is well defended behind a tall fence.

25th Feb 2013  09:53  by PeteBoggs

FB Number: Not logged  Condition: Inaccessible  Score: 3/10

29th Sep 2011  13:08  by Dusty

FB Number: Not logged  Condition: Inaccessible  Score: 2/10

9th Aug 2010  11:01  by dugswell2

FB Number: NONE   Condition: Inaccessible  Score: 5/10

No chance.

23rd Nov 2003  09:30  by sleepwalker

FB Number: Not logged  Condition: Inaccessible  Score: 3/10

No way to determine if its there or not, certainly no pillar.