The construction industry is consistently ranked as one of the most corrupt industries worldwide. The impact of corruption goes beyond bribe payments to poor-quality construction of transport infrastructure with low-economic returns alongside low funding for maintenance. Regulation of the construction sector is necessary, but simplicity, transparency, enforcement and a focus on the outcomes of poor construction are likely to have the largest impact. Where government is the client, attempts to counter corruption need to begin at the level of planning and budgeting. Output-based and community-driven approaches show some promise as tools to reduce corruption, they will need to be complemented by a range of other interventions including publication of procurement documents, independent and community oversight, physical audit and public-private anti-corruption partnerships.