20-Year Street Maintenance Forecast
20-year Street Maintenance Forecast
The City of Des Moines maintains the city streets on a continuing basis to reduce the need for total reconstruction. We use a computer model to calculate our annual goal. The model looks at the following facts:
- Current and projected extent of street defects
- Current and projected traffic
- Actual deterioration rates
- Repairs needed to address the defects
- Inflation and discount rates applicable to all expenses generated by related work
- Available budget
The evaluation results in a 20-year maintenance plan. Public Works uses that plan to define a 5-year and an annual construction program.