The 307-acre Dresden Bog is contained by an approximately 300-foot earthen dam with a spillway designed to manage the water levels specifically for maintenance of waterfowl production and wildlife habitat. A dam improvement was made in the early 1990’s with the installation of an aluminum structure spillway. The dam has since deteriorated due to weather and ageing prompting MDIFW to undertake a three-phase project to repair and recondition the dam. In summary two principal deficiencies that have been identified are the compromised training walls and unacceptable spillway capacity. Secondary deficiencies are the amount of wood vegetation and mature trees that have potential to damage the earthen embankment. The crest of the earthen embankment is variable and final repairs should include a uniform elevation with at least a foot of freeboard during a 100-year storm event. The concrete foundation slab, while in satisfactory condition, is “hung” above the downstream channel and scour action has undermined the toe of the slab. The scope of services for this project includes, but is not limited to evaluations, design, bidding documents and construction administration for the repair or replacement and other related services as needed, such as permitting and scheduling and cost projections. The Consultant may be required to coordinate this work or additional work with other consultants contracted by the Owner. Project Description The 307-acre Dresden Bog is contained by an approximately 300-foot earthen dam with a spillway designed to manage the water levels specifically for maintenance of waterfowl production and wildlife habitat. A dam improvement was made in the early 1990’s with the installation of an aluminum structure spillway. The dam has since deteriorated due to weather and ageing prompting MDIFW to undertake a three-phase project to repair and recondition the dam. In summary two principal deficiencies that have been identified are the compromised training walls and unacceptable spillway capacity. Secondary deficiencies are the amount of wood vegetation and mature trees that have potential to damage the earthen embankment. The crest of the earthen embankment is variable and final repairs should include a uniform elevation with at least a foot of freeboard during a 100-year storm event. The concrete foundation slab, while in satisfactory condition, is “hung” above the downstream channel and scour action has undermined the toe of the slab. The scope of services for this project includes, but is not limited to evaluations, design, bidding documents and construction administration for the repair or replacement and other related services as needed, such as permitting and scheduling and cost projections. The Consultant may be required to coordinate this work or additional work with other consultants contracted by the Owner. Anticipated Scope of Work • Field Investigations and Conditions Assessment • Geotechnical Subsurface Exploration • Site Surve
