A55 NORTH WALES COAST ROAD STAGE 1 - LLANDULAS TO GLAN CONWAY
The paper describes a major scheme which relieves Colwyn Bay of congestion. The evaluation of alternative routes, and the development of the chosen route occupied a 12 year period to the start of construction in 1981. East of Colwyn Bay, unstable clay cliffs overlie a limestone shoreline, and alluvium and peat were found to the west; solutions included an armoured embankment below high water mark, and a piled concrete raft carrying a lightweight PFA embankment. Bituminous construction was specified throughout the length of the Llandulas embankment comprising 10 mm surfacing and 160 mm roadbase, both in hot rolled asphalt. Elsewhere flexible construction incorporating a composite roadbase consisting of 60 mm dense bitumen macadam and 210 mm of lean concrete was used. Within the urban area, 3 km of railway has been realigned and the continuous road/rail interface entailed high levels of co-operation from British Rail. Visual treatment has been carefully considered and landscaping contracts commenced as soon as adjacent construction was completed. (TRRL)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/02656868
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Corporate Authors:
INSTITUTION OF HIGHWAYS & TRANSPORTATION
6 ENDSLEIGH STREET
LONDON, United Kingdom WC1H 0DZ -
Authors:
- SPRINGETT, M
- Publication Date: 1985-5
Media Info
- Features: Figures; Photos;
- Pagination: p. 3-11
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Serial:
- HIGHWAYS & TRANSPORTATION
- Volume: 32
- Issue Number: 5
- Publisher: INSTITUTION OF HIGHWAYS & TRANSPORTATION
- ISSN: 0265-6868
Subject/Index Terms
- TRT Terms: Aesthetics; Beautification; Bituminous pavements; Bridges; Clay; Cliffs; Coasts; Construction management; Embankments; Fly ash; Foundations; Highways; Hot rolling; Landscaping; Lean concrete; Macadam; Peat; Pulverized fly ash; Railroad tracks; Retaining walls; Road construction; Seas; Support piles
- Uncontrolled Terms: Hot rolled asphalt
- Geographic Terms: United Kingdom
- Old TRIS Terms: Coastal; Highway beautification; Lean mix concrete; Pulverized fuel ash; Raft
- ITRD Terms: 3455: Bridge; 3666: Construction method; 2801: Embankment; 4580: Fly ash; 3377: Foundation; 2755: Highway; 2887: Landscaping; 4349: Peat; 3399: Pile; 3359: Retaining wall; 3665: Road construction; 4368: Sea; 3397: Shallow foundation; 8119: United Kingdom
- Subject Areas: Bridges and other structures; Construction; Design; Geotechnology; Highways; Planning and Forecasting; Railroads; I21: Planning of Transport Infrastructure; I51: Earthworks and Soil Drainage; I52: Construction of Pavements and Surfacings;
Filing Info
- Accession Number: 00399413
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- Files: ITRD, TRIS
- Created Date: Aug 25 2004 2:43AM