In 1993-1994 the Snowy Mountains Engineering Corporation (SMEC) in association with the National Capital Planning Authority (NCPA) were engaged by the Cooma-Monaro Shire Council (CMSC) to carry out the Cooma Creek Catchment Floodplain Management Study (SMEC, 1994). This study addressed amongst other things, hydrologic and hydraulic review, current management practice, flooding situation, and issues of warning and emergency action plans. The proposed works were designed to protect areas of Cooma from the 5% Annual Exceedance Probability (AEP) flood event. This means that within a period of one year there is a 5% probability of this flood being exceeded. This report had been compiled to address four specific issues:

1. To evaluate the condition of the Phase I works riffle zones in Cooma Creek and Cooma Back Creek and recommend remedies;
2. To evaluate the condition of the erosion protection at stormwater drain outlets in the Phase I works areas of Cooma Creek and Cooma Back Creek;
3. To report on the effect on water levels of 4 options for levee locations in the Cooma Flood Mitigation Works (CFMW) Phase 2- upstream of Egan Street; and
4. To review alternative layouts for the sediment trap proposed for implementation in Cooma Creek in Phase 2.