Wendover & Central Chilterns Community Forum Area - Road Crossings / Realignments + construction compound details
All details on this document are assumptions based on current design work and are subject to change as design develops.
Ch	Structure/HS2 Chainage	Road Reference	Servicing	Indicative Construction Period	Impact / Staff numbers	Construction access route to worksite	Impact After Construction	Comments
43.00	043+000	A413	Little Missenden Vent Shaft	app 6 - 9 months	Circa 50	A413
44.70	044+700	Chiltern Tunnel North Portal	Chiltern Tunnel,	app 6 - 9 months	Circa 100	Upgraded access (via Hyde Heath Rd)		See Chesham Society proposal
45.78	045+780	Hyde Lane Overbridge		app 1 - 1.5 years	No diversion route required as offline crossing proposed. Traffic management required during construction of tie-in.		Minimal as traffic uses new road.  Existing road will be removed.	Proposed realignment not shown on map. "Green" ( ie wide ) bridge requested - to create wildlife corridor
	045+800	Hyde Lane Compound	NO  INFORMATION					A compound ajacent to Hyde Lane is shown on map
46.30	046+300	B485 Chesham Road		No data	No diversion route required as offline crossing proposed. Traffic management required during construction of tie-in.		Minimal as traffic uses new road.  Existing road will be retained in part to maintain access to existing properties.	Proposed realignments not shown on map  Kings Lane is unsuitable as a diversion – narrow & residential. Need to ensure at least one of Chesham Road & Frith Hill  is open at all times, and both are open if Kings Lane is closed.
47.10	047+100	Frith Hill		No data	Temporary road closure. Diversion via B485 Chesham Road and King's Road.		Minimal as traffic uses new road.
46.40	046+400	Kings Lane		No data	Temporary road closure. Diversion via B485 Chesham Road and Frith Hill.		Minimal as traffic uses new road.  Existing road will be removed.	The new road should be constructed before the old is removed to avoid interrupting  traffic flow.  Road could be reinstated on existing alignment over cut & cover tunnel. The road shape as indicated on the map is illogical and the transition from the existing Kings Lane needs to be smooth and not a sharp left turn.
46.40	046+400	South Heath Green Tunnel	Hyde Lane, Chesham Lane ATS South Heath Green Tunnel, Chesham Road, Kings Lane, Frith Hill	app 5 - 5.5  years (single face working), 2.5 - 2.75 years (double face working)	Circa 50	B485 Chesham Road		Compounds not shown on map Time envisaged for construction of cut & cover tunnel ( 2.5 to 5.5 years, depending on whether work is from one or both ends ) would cause extensive disruption . Residents will require guarantees that construction traffic movements will be restricted during morning and evening rush hour periods and end of school hours to allow free access to South Heath, Great Missenden and Chesham
47.40	047+400	South Heath Green Tunnel	South Heath Green Tunnel	app 5 - 5.5  years (single face working), 2.5 - 2.75 years (double face working)	Circa 50	Frith Hill
48.70	048+700	Leather Lane	Leather Lane Overbridge	app 1.5 - 2 years	Circa 50	Leather Lane (Kings Lane)		It should be possible to provide access to the compound via the haul road for all traffic, to as good a standard as Leather Lane. Access via Kings Lane / Potter Row for any purposes is unacceptable.
48.80	048+800	Leather Lane Overbridge		app 9 - 12 months	No diversion route required as offline crossing proposed. Traffic management required during construction of tie-in.		Minimal as traffic uses new road.  Existing road will be removed.	The road is single track – impose one way traffic for duration of construction ? What does “removal of old road” entail ? Ancient landscape features ( hedgerows etc ) should be preserved.  "Green" ( ie wide ) bridge requested - to create wildlife corridor
50.10	050+100	Bowood Lane Overbridge		9-12 months	Temporary road closure. Diversion via A413 London Road, Rocky Lane/Chesham Lane and King's Lane.		Minimal as traffic uses new road.
50.10	50+100	Bowood Lane	Bowood Lane Overbridge, Wendover Dean Viaduct,	app 1.5 - 2 years	Circa 50	Bowood Lane
51.00	Viaduct 51+000	Wendover Dean Viaduct Launch	Wendover Dean Viaduct	app 1.5 - 2 years	Circa 100	Haul Road (via Rocky Lane)		Not shown on Map
51.90	51+900	Rocky Lane	Rocky Lane Underbridge	No Data				Not shown on S/sheet
51.90	Underbridge 51+900	Rocky Lane	Rocky Lane Underbridge, Wendover ATS	app 0.5  - 1 year	Circa 50	Rocky Lane
52.40	52+400	Small Dean Viaduct Launch	Small Dean Viaduct	app 0.5 - 1 year	Circa 50	Haul Road (via Rocky Lane)
52.90	Viaduct 52+900	Small Dean Viaduct	Small Dean Viaduct	app 1.5 - 2 years	Circa 150	Small Dean Lane
53.00	053+000	Small Dean Lane		No data	Temporary road closure. Diversion via A413 London Road and Dunsmore Lane.		Minimal as traffic uses upgraded existing road.
53.45	053+450	(Access track)		6-9 months	None, permanent diversion to be constructed prior to closure.		Minimal as traffic uses new road.
53.60	Green Tunnel 53+600	Bacombe Road	Wendover Green Tunnel, Ellesborough Road	app 4.5 - 5 years (single face working), 2.25 - 2.5 years (double face working)	Circa 50	Access Road (via A413/Small Dean Lane)
53.95	053+950	Bacombe Lane Link		No data	None		Traffic uses new link road. Approximate additional length of pemanent diversion 600m. Green tunnel will cover route of existing Bacombe Lane.
54.20	054+200	Ellesborough Road		No data	Temporary road closure. Diversion via temporary link to east of Ellesborough Road.		Minimal as traffic uses new road.
55.30	Green Tunnel 55+300	A413	Wendover Green Tunnel	app 4.5 - 5 years (single face working), 2.25 - 2.5 years (double face working)	Circa 50	A413 Nash Lee Road
55.90	Overbridge 55+900	Nash Lee Road	Nash Lee Road, Nash Lee Lane , Stoke Grove ATS	app 1 - 1.5 years	Circa 50	Nash Lee Lane/A413
56.00	056+000	B4009 Nash Lee Road Overbridge		12-18 months	No diversion route required as offline crossing proposed. Traffic management required during construction of tie-in.		Minimal as traffic uses new road.
56.13	056+125	Nash Lee Lane		6-9 months	None, permanent diversion to be constructed prior to closure.		Minimal as traffic uses new road.
56.50	056+500	(Private access)		6-9 months	None, permanent diversion to be constructed prior to closure.		Approximate addtional length of permanent diversion via Nash Lee Road and Nash Lee Lane 1000m.
HS2 Ltd - November 2012