Guidelines for the Treatment of Badgers Prior to - National Roads ...

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12 GUIDELINES FOR THE TREATMENT OF BADGERS PRIOR TO THE CONSTRUCTION OF NATIONAL ROAD SCHEMES GUIDELINES FOR SITE WORKS IN THE VICINITY OF BADGER SETTS The following provisions should apply to all construction works: • Badger sett tunnel systems can extend up to c. 20m from sett entrances. Therefore, no heavy machinery should be used within 30m of badger setts (unless carried out under licence); lighter machinery (generally wheeled vehicles) should not be used within 20m of a sett entrance; light work, such as digging by hand or scrub clearance should not take place within 10m of sett entrances. • During the breeding season (December to June inclusive), none of the above works should be undertaken within 50m of active setts nor blasting or pile driving within 150m of active setts. • Following consultation with the NPWS and badger experts, works closer to active setts may take place during the breeding season provided appropriate mitigation measures are in place, e.g. sett screening, restricted working hours, etc. All contractors/operators on site should be made fully aware of the procedures pertaining to each sett on site. In order to comply with these constraints: • All affected badger setts should be clearly marked and the extent of bounds prohibited for vehicles clearly marked by fencing and signage. Bunting is an option on a temporary basis. Hazard tape is inadequate as it is prone to deterioration and damage by wind or cattle etc. • All contractors/operators on site should be made fully aware of the procedures pertaining to each sett on site. • Construction activities within the vicinity of affected setts may commence once these setts have been evacuated and destroyed under licence from the NPWS. Where affected setts do not require destruction, construction works may commence once recommended alternative mitigation measures to address the badger issues have been complied with. • In almost all circumstances, works close to badger setts may only be conducted under the supervision of a qualified expert under licence from the NPWS. GUIDELINES FOR THE TREATMENT OF BADGERS PRIOR TO THE CONSTRUCTION OF NATIONAL ROAD SCHEMES POST-CONSTRUCTION MONITORING AND MITIGATION Depending on the type of contract, post-construction monitoring requirements should be stipulated in the Employer requirements or Maintenance requirements for the local authorities. In order to ensure that mitigating measures are operating effectively, badger-resistant fencing needs to be properly maintained and underpasses checked periodically in the first two years to ensure that they remain clear of debris or have not become waterlogged. Badger in open location. © Colin Seddon/naturepl.com 13 Upon completion of the road construction, quarterly monitoring should be carried out to determine the success of the measures employed. Monitoring should be continued for at least one year after construction work ceases. Any deficiencies in the measures should be reported to the relevant authority and corrected where possible. Where the site in question is outside the road land take, such monitoring can only be undertaken with the permission of the landowner.
FIGURE 1: SPECIFICATIONS FOR THE CONSTRUCTION OF A BADGER UNDERPASS 14 NOTES: GUIDELINES FOR THE TREATMENT OF BADGERS PRIOR TO THE CONSTRUCTION OF NATIONAL ROAD SCHEMES 1. ASSUME 600Ø PIPE CROSSES THROUGH THE ROAD EMBANKMENT. 600Ø 2. SEE FIGURE 2 FOR DETAILED REQUIREMENTS OF FENCING. 3.THIS DRAWING IS AN INDICATIVE (TYPICAL) DETAIL DESIGN/DETAILING OF DRAINAGE, SERVICES AND THE HEADWALL ARE TO BE UNDERTAKEN ON A SCHEME SPECIFIC BASIS. ROAD EMBANKMENT 4. CONCRETE TO HEADWALL TO BE 30N/mm2 . REINFORCEMENT TO BE A393 MESH (WITH 40 COVER) BENT TO “L” SHAPE AS SHOWN. 1:4 1:4 3m MAINTENANCE TRACK A 3000 Approx 1:2 Approx 1:2 1400 A ACCESS TRACK 750 PERMANENT BOUNDARY 750 200 HEADWALL DETAIL PLAN BADGER RESISTANT FENCING. SEE NOTE 2. (SEE NOTE 4) 2400 2400 850 HEADWALL 1150 100mm COVER 1300 100 200 40 ELEVATION CROSS SECTION A-A 1:20 @A3 FIGURE 2: SPECIFICATIONS FOR THE DEVELOPMENT OF BADGER-RESISTANT FENCING WEATHER DETAIL 75 NAILING OF RAIL TO POST IN ACCORDANCE WITH CLAUSE 2.5.3 OF I.S. 435 PLASTIC COATED CHAINLINK IN 1.8M WIDTH - 50MM X 50MM MESH 2.43/3.15 GAUGE TO ISEN 10223 MESH TO BE BURIED TO A DEPTH OF 200mm BENT AT 90 2400 2400 O TO RUN 300mm AWAY FROM FENCELINE (SEE SECTION) 100 30 250 250 100 x 50 2100 200 GUIDELINES FOR THE TREATMENT OF BADGERS PRIOR TO THE CONSTRUCTION OF NATIONAL ROAD SCHEMES 100 x 50 1300 MESH HEIGHT 250 200 700 100 x 50 LINE WIRE TO I.S. 435 PART 1, CLAUSE 4.4.4 200 200 POST 2100 x 150 x 75 300 ELEVATION FIELD SIDE 1:50 AT A3 600 POSTS TO BE SET IN 475 x 200 Mix ST2 CONCRETE STATED IN APPENDIX 1/3 (SEE NOTE 5) THIS CONCRETE WILL EXTEND 75mm BELOW THE BASE OF THE POST AND TERMINATE 300mm FROM THE SURFACE POINTING DETAIL AS PER CLAUSE 2.5.2 ELEVATION FIELD SIDE 1:25 AT A3 150 100 75 PLAN SECTION 1:25 AT A3 RAIL 4800 x 100 x 50 NOTES: 1. FENCES SHALL BE CONSTRUCTED IN ACCORDANCE WITH IS 435 AND ERECTED IN ACCORDANCE WITH CLAUSE 2.5 OF IS 435 EXCEPT WHERE OTHERWISE SHOWN. 2. ANY LENGTH OF FENCING (INCLUDING BRANCHES AND SPURS) SHALL START WITH A POST AND END WITH A POST. AN ADDITIONAL POST SHALL BE PROVIDED AT FENCE JUNCTIONS AND AT FENCE CORNERS. 3. POST HOLES FALLING IN ROCK SHALL BE EXCAVATED TO THE DEPTH SHOWN ON THIS DRAWING OR, WITH THE ENGINEER’S APPROVAL, TO A DEPTH OF 500mm AND SHALL BE BACK FILLED WITH MIX ST2 CONCRETE. WHERE A REDUCED DEPTH OF HOLE IS ACCEPTED BY THE ENGINEER,THE TOP OF THE POST SHALL BE SUITABLY CUT AND TREATED IN ACCORDANCE WITH THE RELEVANT CCA OR MANUFACTURER’S RECOMMENDATIONS. ELEVATION ROAD SIDE 1:50 AT A3 4. FENCE TYPES SHALL BE AS FOLLOWS DEPENDING ON THE REQUIRED PRESERVATION TREATMENT: TYPE A COPPER-CHROME-ARSENIC IN ACCORDANCE WITH IS 435 AND IS/EN 599, PARTS 1 AND 2. FIXING 1. FIX 1 LINE WIRE TO THE FIELD SIDE OF POSTS AS CLOSE TO GROUND LEVEL AS POSSIBLE. 15 TYPE B CREOSOTE IN ACCORDANCE WITH IS 435. 5. CONCRETE FOUNDATIONS TO POST SHALL BE PROVIDED WHERE STATED IN APPENDIX 1/3 OR DIRECTED BY THE ENGINEER. 2. SECURE CHAINLINK MESH TO THE FIELD SIDE OF RAILS WITH 4 STAPLES PER LIN. METRE ON THE TOP RAIL AND 1 STAPLE PER LIN. METRE ON THE OTHER RAILS. SECURE TO LINE WIRE WITH 2mm TYING WIRE OR WITH APPROVED GALVANISED HOG-RINGS AT 4 TIES/HOG-RING PER METER 2mm GALV. M.S.TYING WIRE TO COMPLY WITH BS 1722 WIRE. STAPLES SHALL BE GALV. 30mm x 3.75mm ROUND.
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