Atinafu Alemayew AbetoDinkineh Gemeda WareFraol Urga BedadaGadisa Gelelcha BedaneGeremew Negash AyanaTezera Guta Berecha2025-04-042025-06https://rps.wku.edu.et/handle/123456789/45955The construction project is regarded successful when it is given over to the owner within the time, cost, and standards necessary while minimizing delays in public construction projects. Ambo-woliso road is one the public road project experiencing significant delays. This article evaluates the most prevalent delay issues encountered by Ethiopian government-funded construction projects, particularly those using Ambo-woliso road project, analyzes their impacts, and suggests a delay management system. The study applied qualitative as well as quantitative techniques to evaluate primary and secondary data. Per the entirety statistics, the top five most important and highly ranked factors are erroneous time estimates, force majeure, lowest bid, procurement policy, and volatile markets, as well as frequent design changes. Nearly every Ambo-woliso road project schedule overruns up to 300% of its contract duration. As a result, the government officials suffered from poor public relations and a high cost of supervision and contract administration. Conducting a thorough and accurate project feasibility study, awarding bids to experienced contractors, avoiding drawing discrepancies, preparing an accurate initial time and cost estimate, and strict schedule monitoring were discovered to be effective techniques for reducing delays in public construction projects.enCauses and Effects of Project Delay of Ambo-Woliso Federal road Project.Thesis