Prioritizing a ETB 85 Million Maintenance Budget
A district road office manages 620 km of paved and gravel roads with an annual maintenance budget of ETB 85 million. The technical unit's list includes: resealing 14 km at ETB 42 million; routine maintenance on 120 km at ETB 18 million; scour repair on three bridges at ETB 15 million; pothole patching on 45 km at ETB 6 million; drainage cleaning at ETB 4 million; and axle-load enforcement at ETB 2 million. The total is ETB 87 million. A 2 km section on the main market route has raveling and base failure; AADT is 3,200 with 18% heavy trucks. A donor offers ETB 60 million for a new 8 km access road if the office provides ETB 10 million counterpart funding. The office has no asset management system beyond a spreadsheet, and the regional council wants the new access road.
1. How should the office prioritize spending within the ETB 85 million budget? Justify the ranking.
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First, protect the network from failure: fund the three bridge scour repairs at ETB 15 million, because a bridge collapse would cut the main market route and cost far more to reconstruct. Second, fund routine maintenance at ETB 18 million and drainage cleaning at ETB 4 million to preserve the asset and reduce water damage. Third, fund pothole patching at ETB 6 million on safety grounds. That totals ETB 43 million. Fourth, the 2 km base-failure section on the market route needs urgent structural treatment; obtain an estimate and treat it as a priority within the reseal or emergency budget. Fifth, fund axle-load enforcement at ETB 2 million as high-value prevention.
The 14 km reseal at ETB 42 million cannot fit alongside the other items. Phase it: reseal the worst 7 km now and programme the rest next year. The ranking uses safety risk, traffic, consequence of failure and life-cycle cost, rather than spreading money thinly across every item.
2. What asset management principles and data should guide the reseal and base-failure decisions?
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Asset management means managing the network over its life at the lowest whole-life cost for a defined level of service. The office should record inventory, condition, traffic and treatment costs, and use a simple prioritization matrix scoring safety risk, traffic, condition and cost-effectiveness. A spreadsheet can support this if the data are consistent.
The 2 km base failure needs a pavement investigation: if the base is saturated, patching will fail again. Compare full reconstruction, stabilisation and a temporary detour using net present value and road-user costs. The raveling suggests aging binder; resealing too late wastes money, but resealing a section with base failure also wastes money. A condition survey should fill data gaps before committing the ETB 42 million. Publishing the criteria and the ranked list builds credibility with the council and reduces political pressure.
3. How should the donor's conditional offer for the new access road be handled?
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The offer is not free money. The ETB 10 million counterpart must come from the same budget, and the new road will create recurrent maintenance costs that are not in the ETB 85 million. The access road may have real benefits, but it should compete through normal planning rather than divert maintenance funds.
The engineer should ask: is the road in the regional plan, what is its economic return, and who maintains it? If the office accepts, the counterpart should be a separate capital budget line, not taken from bridge or routine maintenance. If the donor requires a decision within weeks, present a written assessment to the regional council showing the trade-off: ETB 10 million is equivalent to drainage cleaning plus axle-load enforcement plus part of pothole patching. The council may still choose the access road, but the decision should be informed and recorded. Do not sign a conditional agreement without confirmed budget availability.