Roads, Structures & Streetlighting Maintenance Programme 2025-26
North Ayrshire Council · 18 March 2025
Back to Cabinet — 18 March 2025 and its agenda
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NORTH AYRSHIRE COUNCIL 18 March 2025 Cabinet Title: Roads, Structures and Street Lighting Maintenance Programme 2025/26 Purpose: To seek Cabinet approval of the proposed Roads, Structures and Street Lighting Maintenance Programme for 2025/26 Recommendation: That the Cabinet (a) notes the approach taken to determining the asset maintenance programme for roads, structures and street lighting; (b) approves the maintenance programme for 2025/26, as shown at Appendix 1a & 1b; and (c) notes that the programme will be issued to the Locality Planning Partnerships for information. 1. Executive Summary 1.1 North Ayrshire Council has a statutory obligation under the Roads (Scotland) Act 1984 to manage and maintain its public road network. The adopted road network within North Ayrshire has a total length of 1051m. The core roads assets are currently estimated at a value of approximately £1.7billion. 1.2 The Council’s Roads Service has adopted an asset management approach to road maintenance to allocate available road maintenance funds to locations that will offer the most beneficial return on the investment. 1.3 The Roads Asset Management Plan (RAMP) and the roads assets maintenance strategy follows the recommendations contained within the ‘Well Maintained Highway’s Code of Practice, ensuring that the Council’s statutory obligations as delegated Roads Authority are met. 1.4 In complying with the Code of Practice, an effective regime of inspection, assessment and condition recording is well established which assists in not only providing a road network for the future but one that promotes social inclusion and contributes to economic growth within the area. This approach also ensures the Council is providing value for money on any investment attributed to road maintenance. 1.5 The proposed Roads, Structures and Street Lighting Maintenance Programme 2025/26 is attached at Appendix 1a and 1b. 2. Background 2.1 North Ayrshire Council is responsible for the maintenance of the adopted local road network including lighting and structures assets as well as its other non-adopted road assets. However, the Council has no responsibility for the maintenance of the Trunk
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Road Network which falls to Transport Scotland and their management contractor, Amey. The Trunk Road network includes the A78, the A737 from Kilwinning to the Renfrewshire Boundary and A738 from the Pennyburn Roundabout to the A737 Dalry Road Kilwinning. 2.2 North Ayrshire Council’s roads are the Council’s largest community asset and play a vital role in supporting the local and wider economy by facilitating the movement of people, goods and services and connecting people with economic and social opportunities. 2.3 The proposed Roads, Structures and Street Lighting Maintenance Programme for 2025/26 has been developed in accordance with the strategy contained within the Roads Asset Management Plan (RAMP) to deliver the maximum return on investment and ensures the provision of an effective road network throughout North Ayrshire. 2.4 Road Condition is measured nationally through the Scottish Road Maintenance Condition Survey (SRMCS). The measure in place, the Road Condition Index (RCI), records the percentage of the Council’s roads which should be considered for maintenance. North Ayrshire’s RCI has been improving in recent years and although it saw a decline to 34.8% (published 2023 figure) it has improved again to 32.5% (published 2024 figure). 2.5 The estimated carriageway maintenance backlog figure for North Ayrshire is currently £38.5m. The ‘steady state’ figure for maintaining our roads at present condition is £5.5m per year. The capital budget supported by revenue funding is £4.3m for 2025/26. At the Council’s budget setting meeting on 26 February 2025 a further £1m was allocated to road maintenance providing a budget this year of £5.3m. 2.6 Road lighting condition is measured through programmes of structural and electrical assessment and testing and is complemented through the ongoing review of age profile and material type life expectancy. The results are categorised and recorded in the lighting asset management database to inform a prioritised list of replacement schemes. Lighting is allocated an annual Capital budget of £1m to address a ‘steady state’ position of maintaining our lighting at present annualised depreciation rate. 2.7 Bridge and retaining wall condition is also evaluated through a robust inspection programme. General inspections are undertaken every 2 years, while an in-depth ‘principal inspection’ is carried out every 6 years and the results of the inspections are used to inform work programmes. The results of the inspections are input into a Structures database which is then used to calculate an average Bridge Structure Condition Index (BSCIav) based on the total number of assets. The BSCIav is currently 83.11 (2023/24 figure) which is within the ‘good’ classification of 80 to 90. The allocated capital budget of £560,000 is supported by a small carryover from 2023/24 giving a total of £675,000. 2.8 Details of how condition assessments are carried out and how roads, structures and lighting locations are prioritised for inclusion in our maintenance programme are provided in Appendix 2. The assessment matrix used for scoring and ranking structures for inclusion in the Structures Maintenance Programme is attached in Appendix 3. 2.9 The road maintenance programme in 2024/25 mitigated high inflationary cost increases through two factors - by forecasting higher projected costs and building this
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into the programme early in the financial year and, secondly, the Roads Minor Works Framework Contract price being held for the 6 months to September 2024. Works completed by the operational team and any works tendered since then were subject to inflationary rises in material and plant costs as well as contractor price increases. The 2025/26 road maintenance programme has been prepared using increased rates from 2024/25 costs to allow for further inflationary rises in operational costs and to ensure that programmed works can be completed. 2.10 The following footway locations are being carried over from the 2024/25 maintenance programme for completion 2025/26: • Howard Street to Bute Terrace remote footpath, Millport (due to economies of scale this will be carried out this year as part of a larger scheme) • Castlepark remote footpaths (due to increased costs these works will be carried out early 2025/26) • Canal Street footway (this small section was unable to be completed in 2024/25 and will be done in 2025/26.) 2.11 The following structures contract is being carried over from the 2024/25 maintenance programme: • Threadmill Bridge (C99) (This has been designed and is ready for tender, however this will require an unavoidable road closure that has extended consultation with local residents/business) 3. Proposals 3.1 That Cabinet notes the approach taken to determining the asset maintenance programme for roads, structures and street lighting. 3.2 That Cabinet approves the maintenance programme for 2025/26, as shown at Appendix 1a and 1b. 3.3 That Cabinet notes that the programme will be issued to Locality Planning Partnerships for information. 4. Implications/Socio-economic Duty Financial 4.1 The Roads, Structures and Street Lighting Maintenance Programme will be delivered from allocated Capital and Revenue budgets. Estimated costs are detailed within the appendices. Human Resources 4.2 Delivery of the programme will be met from existing staff resources. Legal 4.3 North Ayrshire Council has a statutory obligation to manage and maintain its public road network under the terms of the Roads (Scotland) Act 1984.
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Equality/Socio-economic 4.4 There are no equality implications. The maintenance programme contributes to the Council’s socio-economic duty, as well-maintained roads are essential for the social and economic prosperity of North Ayrshire. Environmental and Sustainability 4.5 Effective programming and management of these assets will assist in reduced carbon associated with mobilisation of unplanned reactive maintenance resources and extends the use of assets in a cost effective and sustainable manner. Key Priorities 4.6 Effective management of these assets contributes to a number of Council plan objectives ensuring that North Ayrshire is well-connected with effective infrastructure and that we maximise resources and provide value for money. Community Wealth Building 4.7 The maintenance programme contributes to Community Wealth Building through community benefits clauses associated with maintenance contracts. It is also the case that a proportion of the maintenance programme is also delivered in-house by the Roads Operations Team and Building Services. 5. Consultation 5.1 The maintenance programme will be shared with each Locality Partnership. RUSSELL McCUTCHEON Executive Director (Place) For further information please contact Susan Macfadyen, Senior Manager, Commercial Services (Roads), on Tel: 01294 324844. Background Papers 0
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Appendix 1a Street Town Location Estimate Cost B780 Ardrossan From resurfacing at Busbie Reservoir for approx 1km £170,000 B780 Glasgow Street Ardrossan Including Princes Street junction £185,000 A736 Beith South of Biggart Farm to EAC boundary £120,000 Hawthorn Crescent / Chestnut Avenue Beith Dalry Road to Myrtle Bank £42,500 B777 Beith Previous surfacing to B775 £150,000 Douglas Avenue Dalry Baidland to Blair Road £35,000 Main Street Dalry Full Length £28,000 Southannan Road Fairlie Full length £35,000 B777 Main Street Gateside Including adjustments to traffic calming, footway improvements and patching £65,000 Jermond Drive Irvine Full Length Including Bell Crescent junction £62,500 Ravenscroft Irvine Livingstone Terrace to new surface £20,000 Smith Avenue Irvine Full length £15,000 Bruce Terrace Irvine Full length £35,000 A737 Ayr Road Irvine Sainsbury to Carson Drive £110,000 B7080 Long Drive Irvine Hill Roundabout to Stanecastle Roundabout, including Hill Roundabout £245,000 Livingstone Terrace Irvine Fleming Terrace to Beaton Terrace £60,000 Marine Drive Irvine Gailes hotel to the Three Stanes Roundabout £72,500 Portland Avenue Irvine Portland Road to MKM £50,000 MacKintosh Place Irvine Full length (include from Annick Road to Industrial estate) £180,000 Birkscairn Way Irvine Full length £45,000 Kerr Drive Irvine Full length £42,500 Thornhouse Avenue Irvine Full length £75,000 A71 Irvine Milgarholm Roundabout (including approach from Merryvale) £90,000 A736 Irvine Anti skid to EAC boundary near Torranyard £55,000 Middleton Park Irvine To junction with Lomond Way, include junction at Nevis Way £23,000 Shewalton Road Irvine From Shewalton Roundabout towards Drybridge £95,000 Sillars Meadow Irvine Full Length £72,000 A760 Kilbirnie Cochrane Street to new surface past Geirston Junction £135,000 Garnock Street Kilbirnie Full length £20,000 Paduff Place Kilbirnie Full length £25,000 Bathville Kilbirnie Between numbers 2 and 8 £10,000 Ladysmith Road Kilbirnie Avils Place to Bathville £17,000 Briery Court Kilbirnie Dalry Road to no.3 £18,000 B785 Fergushill Road Kilwinning Moncur to Parkhead Avenue £70,000 Prestonfield Avenue Kilwinning Include junctions at Annanhill to track, Gullane and Nairn £65,000 Fergushill Service Road Kilwinning Numbers 85 to 113 £25,000 Parkhead Avenue Kilwinning Full length £30,000 Machrie Place Kilwinning Full Length £58,000 Glen Avenue Largs Number 185 to 66 including cul-de-sacs £65,000 Queens Avenue Largs Full length £30,000 Woodcroft Avenue Largs include Eastern Ave from The Roundel to Woodcroft £65,000 Hamilton Drive Largs Full Length £18,000 Lovat Street Largs Full Length £34,000 B896 Glasgow Street Millport From joint at College Street to number 3 Kelburn Street £155,000 Craig-En-Ros Road Millport George Street to Number 5 £27,500 Craig Street Millport Full length £11,000 B896 Millport North section of the Island £159,000 Prospecthill Road Saltcoats Full length £30,000 Ivanhoe Drive Saltcoats Dalry Road to joint near Duguid Place £40,000 Gilfillan Avenue Saltcoats Full length £20,000 McKinnon Place / New England Road Saltcoats Included half width Knox Place £45,000 Sannox Drive Saltcoats Odd side £50,000 B714 Dalry Road Saltcoats High Road to A78 (sections) £87,000 Innes Park Road Skelmorlie Full length half panels as required £40,000 Skelmorlie Castle Road Skelmorlie Halketburn to Sandybrae £50,000 New Street Stevenston Afton Road to past Glencairn Primary School £60,000 B7047 Chapelton Road West Kilbride Part length £215,000 Barony Glebe / Manse Road West Kilbride Full length £25,000 Overton Crescent West Kilbride Junction Area and half width to R2 £10,000 Bowfield Road West Kilbride For approx 50m from surfacing at Yerton Brae £107,500 Corse Street West Kilbride Junction with Halfway Street £25,000 Ardneil Avenue West Kilbride Full Length £21,000 £4,041,000 Street Town Location Estimate Cost C69 Greenhills Barrmill End of new surface south of Borestone Jct to C68 Nettlehurst Jct £45,500 C5 Barrmill Barrmill B706 to Gatehead Farm (3 sections) £40,500 C67 Geilsland Road Beith A737 to rear of old school (2 sections) £25,000 U7 Bigholm / Threepwood Road Beith A737 to new surface just round corner after Woodlands Cottage £55,500 U43 Meadowside Beith Auchengree Road to end (Sections) £42,000 U42 Lugton Ridge Burnhouse Mid Lugton Ridge to High Lugton Ridge £31,000 C87 Kilwinning Meadowpark Roundabout to Gateside Farm (Sections) £45,500 C109 Kilwinning Auchenskeith Farm £25,500 Routenburn Road Largs After Routenburn farm (between the two nearer sections) £22,000 Skelmorlie Castle Road (Rural Section) Largs Camcor Cottage £12,500 Inner Circle Millport Various Sections £155,000 £500,000 MAINLAND ROADS PROGRAMME 2025 - 2026 Carriageway Resurfacing Carriageway Screeding
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Appendix 1a Street Town Location Estimate Cost Beech Avenue Beith Both sides full length £92,500 Castlepark Footpaths Irvine To be confirmed £70,000 Holmhead Kilbirnie Numbers 13 to 49 £25,000 Gateside Street Largs Aitken Street to car park £10,000 Remote Footpath Millport Howard Street to Bute Terrace £18,000 Canal Street Saltcoats Robertson Cresent to Old Railway bridge £5,000 Hamilton Street Saltcoats Even side numbers 36 to 72 / Odd side to be determined £25,000 Lochlee Place Stevenston Both sides full length £4,500 £250,000 Structure Road Project Estimate Cost Lynn Drive Footbridge, Kilbirnie Lynn Drive Steel repairs and repainting £90,000 Kirkland Road F/B No. 2, Glengarnock B777 Repairs to concrete slab, beam repainting and parapet upgrade £80,000 Threadmill Bridge C99 Replacement/ Strengthening £180,000 Carsehead Bridge B714 General Repairs £35,000 Barrie Terrace, Ardrossan Barrie Terrace Strengthening design £50,000 £435,000 Area Town Project Estimate Cost Mackintosh Place Irvine LC/01/25 Mackintosh Place £125,112 Gateside Lanfine Way Lammermuir Crt Moorfoot way Earncraig Green Pentland Place Windlestraw Crt Whitehope Green Rockland Park Walkerston Avenue Prospecthill Road Saltcoats LC/05/25 Saltcoats £12,832 Seafield Ct Seafield Dr Stanley Dr Stanley Av Linn Road Ardrossan LC/07/25 Ardrossan West £28,872 Moorpark Place Hillside St High Rd Service Rd Mayfield Cres Diddup Dr Mayville St Cunninghame Dr Column Structural Testing Various LC/10/25 £48,000 Lighting Deteriorated Column Replacements Various LC/09/25 £150,000 £1,000,000 Stevenston £70,576 Stevenston £86,616 LC/02/25 Girdle Toll LC/03/25 Bourtreehill South LC/04/25 Largs LC/06/25 Ardrossan South LC/08/25 Stevenston South LC/11/25 Stevenston North Irvine Largs £73,784 Ardrossan £80,200 £214,936 £109,072Irvine Lighting Deteriorated Infrastructure Replacements Structures Projects Footway Resurfacing
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Appendix 1b Street Town Location Estimate Cost Timber Transport Match Funding (Locations to be agreed) £55,000 A841 Corrie Alderlea to Surface Dressing £30,000 A841 Corrie Bridge just prior to School to Tign-an-achaidh £55,000 A841 Lochranza Old Manse Access to Ferry Terminal £50,000 C147 Lochranza to Catacol Lochranza Additional Section £18,000 C147 Lochranza to Catacol Auchnamara to Catacol sign £70,000 Corriegills Road Brodick Various sections from A841 to Bridge after North Corriegills £60,000 A841 Lamlash to Whiting Bay Gortonallister from Birchgrove to beyond Spion Kop £70,000 C147 Kildonan From East of the East Kildonan Junction to Drimlabarra Junction (Sections) £85,000 U86 Levencorroch Kildonan Continuation from previous scetion £7,000 C147 Auchenhew Northern Heights / Pladda to U86 Levencorroch (Sections) (Include bridge deck just after U86) £91,000 C147 Eact Bennan Knockandon to Shannochie House (Sections) £91,000 Torrlinn Terrace Torrlinn Terrace C147 to end of houses heading towards church £20,000 Park Terrace Whiting Bay A841 to Benlister Road (Sections) £57,000 £759,000 Structure Road Project Estimate Cost Bridge over Alt Mor B880 General repairs £120,000 Catacol Bridge C147 Replacement feasibility study £50,000 Culvert West of Ballymeanoch C147 Retaining wall strengthening £70,000 £240,000 ARRAN ROADS PROGRAMME 2025 - 2026 Carriageway Resurfacing Structures Projects
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Appendix 2 Condition Assessment and Prioritisation Process 1.1 The Audit Scotland Follow-up report, Maintaining Scotlands Roads published in August 2016 stated that Councils should use their RAMPs to establish long term investment plans for maintaining the road network taking into acount whole-life costing and treatment options. 1.2 As part of the Roads Asset Management process, annual condition assessments are carried out on the public road network as part of the inspection regime. All locations are assessed using a risk based approach. 1.3 Condition assessments are carried out simultaneously with the Safety Inspections in accordance with the pre-determined timescales contained within our Safety Inspection Manual. All faults noted during these inspections are logged within our electronic Routine Maintenance System (RMS). 1.4 For carriageways, to take account of whole-life and different treatment options the carriageway maintenance programme is developed using road asset management principles. Lifecycle planning is at the core of this approach and takes into account, hierarchies, condition and local community priorities. Preventative treatments are used to prolong the life of carriageway surfaces before their condition deteriorates and requires extensive resurfacing. 1.5 The main factors considered are:- • Road Condition – based on detailed visual inspection and the Scottish Road Maintenance Conditions Survey (SRMCS). • Road Hierarchy – this takes account of the strategic importance of the road and is determined from our Local Transport Plan. • Assistance to Council and Community Priorities – this takes account of other priorities such as economic development, access to shops, amenity housing or schools. 1.6 Carriageways and footways are both condition assessed and scored in accordance with the assessment table below. These condition scores, RCI data, road hierarchy information and priorities information as above are utilised through our electronic WDM Scheme Manager to target locations for improvement works in order to optimise investment.
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Appendix 2 Assessment Table CONDITION Extent 1 (Acceptable) 2 (Safe but poor appreance) 3 (Minor deterioration) 4 (Major deterioration) 1 - Up to 25% 5 9 13 2 – 25% to 50% 6 10 14 3 – 50% to 75% 7 11 15 4 – 75% to 100% 4 8 12 16 Each location is also reviewed at least once a year depending on its location within the Roads Hierarchy as part of the routine inspection process. 1.7 There are various types of surfacing materials and processes available depending on the particular road type, location and level of existing deterioration. Options available for treatment include preventative measures such as surface dressing and resurfacing options such as screeding, resurfacing (inlay and overlay), depending on the severity of deterioration full reconstruction may be the most effective option. 1.8 The level of investment associated with the varying treatment types identified in the table below was established using the Society of Chief Officers of Transportation in Scotland’s cost projection model, developed as part of the Roads Asset Management Planning project. The model assists with identifying the effect of various treatments on the on-going condition of the carriageway. This enables a more accurate design life for the treatments currently available to be developed and ensuring value for money on their use. Costs for works can vary from the figures below depending on restricted working arrangements, traffic management required and the extent of preparatory works necessary to enable resurfacing. There is also an additional uplift for island working of up to 50% for works on Arran and Cumbrae.
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Appendix 2 Treatment Option Table Treatment Option Cost per Sqm 2023/24 Cost per Sqm 2024/25 % Change Extension to life Surface Dressing £4.00 £4.32 8% Up to 10 years Screeding £14.40 £15.00 4% 5 – 10 years Inlay HRA £26.00 £28.36 9% Up to 20 years Overlay <100mm £33.00 £34.60 5% Up to 20 years Inlay 100mm £38.00 £38.00 0% Up to 20 years Reconstruction 300mm £165.00 £165.00 0% Up to 20 years 1.9 Street Lighting column replacement is prioritised through non-destructive strength testing to determine the level of deterioration associated with the columns. Following testing, columns are categorised within the Asset Management database for road lighting. 1.10 Testing is carried out in accordance with the Institute of Lighting Engineer's Technical Report No.22 Managing a Vital Asset: Lighting Supports as well as UK Lighting Board Code of Practice: Well-lit Highways. 1.11 Once results are input, the database then compares these results against the more general age profile to determine a final list of priority repairs. This produces recommendations in order of priority for both individual units and whole streets or areas. 1.12 Recommendations are generally categorised as Category A through K as follows: A: Immediate replacement B: Replace urgently or reinspect within 6 months C1: Column Material failure, replace as soon as possible or reinspect within 1 year C2: Bracket failure, sleeve where possible or replace unit within 1 year D: Foundation failure, realign, reinstate and reinspect within 6 months E: Material approaching failure, replace as part of planned maintenance programme or reinspect within 2 years F: Material approaching failure, replace as part of planned maintenance programme or reinspect within 5 years
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Appendix 2 G: Condition reasonable, but age expired and certified insured for 2 year periods until replaced H: Condition reasonable, but age expired and certified insured for 5 year periods until replaced I: Acceptable condition but age expired and insured for 5 years periods until replaced. J: Sound condition but age expired & visually poor (evidence of concrete cracking etc.) K: Sound condition and not age expired – no current requirement for strength structural inspection, visual only at planned maintenance cycle. 1.13 Where non-urgent replacement recommendations (Category F through to J) are on an individual column basis, the data is further analysed to determine a percentage value for recommended replacement numbers against the balance of units in a street. If this figure exceeds 30% then the entire street will be considered for higher prioritisation which will address the design class standard of the street beyond individual replacement for safety reasons only. 1.14 The structures programme is identified based on the structures prioritisation matrix which ranks assets based on a number of factors including its condition, safety, and usage.
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Structure Name: Enter score based on the description in the following coloured cells Date when the scoring is carried out: Priority Ranking for structure capital programme Structure Net score % of Maximum Score total Score No. Factors Score Input 1 Type of Bridge 1 Score 1 if road bridge and 0 if foot bridge Culverts, Subways which carry road shall be considered as road bridge as per this scoring system. Structures which carry only pedestrians, cyclists and equestrians shall be considered as footbridge. NA 2 Route Factor 40 Score based on NAC route hierachy Route hierachy 0 0% Cat 2 - SPT/ NAC strategic routes - 40 Cat 3a - Main distributor routes - 30 Cat 3b - secondary distributor routes - 20 Any other category - 10 Routes serving fewer than 5 properties - 5 3 HGV Restriction 60 Score based on weight capacity Weight restriction 0 0% factor 3 tonnes - 60 7.5 to 13 tonnes tonnes - 50 18 tonnes - 40 26 tonnes - 30 No weight restriction - 0 4 Condition factor 10 Score based on the condition of the bridge Sliding score based on 0 for very good condition to 10 for poor condition. (10 - (BCI crit/ 10)) 0 0% 5 Deterioration factor 10 Score based on the rate of deterioration of the structure Sliding score based on 0 for very slow deterioration to 10 for rapid deterioration 0 0% 6 Pedestrian factor 20 Score based on pedestrian usage. Bridges with footways of heavy pedestrian usage shall score a maximum of 30. Structures with footways in heavily used urban areas score 20. Score 20 if route is access to a school or railway station. Apply a sliding scale going down to 0 for rural structures without footways. 0 0% 7 Flooding factor 40 Score based on the potential for the existing structure to contrubute to flooding A structure that makes no contribution to flooding risk will score 0. Structures that are know to increase the risk of flooding due to restrictions in width or soffit height will score 30. 0 0% 8 Scour factor 60 Score based on risk of collapse due to expose to scour in heavy flow conditions Risk of collapse of structure due to scouring. Structures which have been deterioted severely because of inadequate scour protection and on verge of collapse score maximum. Scour risk based on a sliding scale. 0 0% 9 Parapet Condition Factor 15 Score based on the condition of the parapets Structures with substandard Parapets with poor conditon will score 15 . Structures with substandard parapets with a 'monitor only' recommendation will score 10. Structures which have parapets to current standards will score 0. 0 0% 10 Parapet Risk Factor 10 Score based on risk in the event of a parapet collapse leading to high risk injuries and human casualties. What is the likelihood of severe injury or even death while the parapet is open to use considering the condition of the structure. Risk based on a sliding scale. -5 100% Structure Name: Additional commentry
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11 Delay factor 10 Score based on whether existing restrictions such as limited width cause delays at the structure Structures where delays are caused by width, weight, height or other restrictions such as traffic lights will be given a score higher than zero. Delays less then 2 minutes at peak times will score 5 and longer than 2 minutes will score 10. Score maximum if fire station, railway station or hospital affected by delay. 0 0% 12 Structure Risk factor 10 Score based on risk in the event of a Structure collapse leading to high risk injuries and human casualties. What is the likelihood of someone getting a high risk injury or even death while the structure is open to use considering the condition of the structure. Risk based on a sliding scale. 0 0% 13 Maintenance factor 20 Score based on maintenance required to keep the existing structure open. Score based on known maintenance history and requirement. No maintenance requirement will score 0. Listed structures score 15. 0 0% 14 Diversion factor 10 Score based on the length of the diversion route if the structure is closed in an unplanned manner with no finite time limit. Score based on diversion length. Any diversion equal to or more than 20 miles scores 20. Score 1 for each 2 miles of diversion up to 20. Score 10 if a road closure adversly affects a fire or railway station or hospital. Score 10 if there is no alternative diversion. 0 0% -5 Note maximum score that can be achieved for road bridge= 500 Priority level Chart Structure Name: Date of Scoring: 00-Jan-00 Priority Level Indicator Overall works (500) Structure works (100) Parapet works (70) Scour Protection (60) Level Score Level Score Level Score Level Score No Action Rquired Low Priority Medium Priority High Priority Immediate action required Note : Works are divided above into three sub categories as each work can be independent and each has its own significance in terms of attention required.