Inspection and maintenance of Track on Approaches of Bridges

 Inspection and maintenance of Track on Approaches of Bridges :- 

(a) For all Bridges- 

(1) On the bridge approaches, sleepers with arrangements for fixing guard rail should be provided for provision of guard as per Para 275 above.

(2) Full complement of track fitting at bridge approaches up to 100 metres should be provide to maintain required track geometry and effort should be made to immediately recoup deficiency noticed, if any. 

(3) Rail level of track at approaches of bridge should be maintained as per designed L-section and dips in rail level immediately after the abutments should be avoided. The alignment and super elevation in case of curved track should also be maintained as per provision of chapter IV of IRPWM.

(4) Rail joint should be avoided within three metres of a bridge abutment.

(5) In case of LWR track, full ballast section as specified in LWR Manual should be provide up to 100 metres from the abutment.

(6) Switch expansion joints should be provided at the bride approaches in LWR/CWR track as per provisions of LWR manual. 

(b) For important and major bridges - 

 In addition to Para 

(a) above, following should also be provide.

(1) In case of CST-9 or wooden sleeper track, concrete/steel trough sleepers with elastic fastenings should be provided up to 100m/upto full breathing length wherever LWR is provide in approach of bridge.

(2) On the bridge approaches, for a length of abut 100 metres, width of cess should be 90 cm clear of full ballast section to maintain ballast profile. For maintaining ballast section, suitable ballast retaining arrangement should also be provided.