Under Ohio law, properties and public corporations that receive benefits from the Miami Conservancy District flood protection system may be assessed based on the value of those benefits.
The Board of Appraisers is responsible for appraising those benefits. Periodically, MCD conducts a readjustment of the Appraisal of Benefits to reflect current conditions and ensure that the costs of maintaining the flood protection system are distributed based on the benefits provided.
MCD is currently completing the Seventh Readjustment of the Appraisal of Benefits. This readjustment is substantially updating how flood protection benefits are identified and calculated. The updated approach evaluates direct property protection, protection of critical services and infrastructure, and broader regional benefits.
The new methodology will not use property values to calculate benefits.
Current assessment methodology
Seventh Readjustment / future methodology
History of Previous Appraisals and Readjustments
Original Appraisal Record
- Approved in 1917 for collection beginning in 1919
- Each property was individually appraised to establish value and benefit
- Municipal Unit Benefit equal to sum of individual benefits within that municipality
- Piqua's Municipal Unit Benefit equal to one-half the sum of individual benefits within that municipality
First Readjustment of Benefits
- Approved in 1968 for collection in 1970
- Individual Benefits adjusted based on current (at that time) property values
- MCD used county auditor Tax Values (not full appraised values) as basis for benefit computation
- Unit Benefits to municipalities and counties not adjusted (remained at 1917 values)
Second Readjustment of Benefits
- Approved in 1980 for collection in 1981
- Individual Benefits adjusted based on current (at that time) property values
- Properties owned by federal, state and local governmental entities were exempted from individual assessments
- MCD adjusted all Unit Benefits by increasing the 1917 Unit Benefits by 13%
Third Readjustment of Benefits
- Approved in 1986 for collection in 1987
- Individual Benefits adjusted based on current (at that time) property values
- A committee of representatives of the affected municipalities and counties plus MCD staff recommended the current Unit Benefit formula:
- Municipal - 40 percent of the sum of the individual benefits within the municipality
- County - 40 percent of the sum of the individual benefits within unincorporated areas (townships) within that county; PLUS 15 percent of the sum of the individual benefits within that county
Fourth Readjustment of Benefits
- Approved in 1996 for collection in 1997
- Individual Benefits adjusted based on current (1994) property values
- No change to Unit Benefit formulas
Fifth Readjustment of Benefits
- Approved in 2004 for collection in 2005
- Individual Benefits adjusted based on current (2002) property values
- No change to Unit Benefit formulas
Sixth Readjustment of Benefits
- Approved in 2012 for collection in 2013
- Individual Benefits adjusted based on current (2011) property values
- No change to Unit Benefit formulas
Seventh Readjustment of Benefits
- Scheduled for 2024. Paused on May 3, 2024 by MCD Board of Directors. Rescinded by the Conservancy Court on May 10, 2024.
