San Diego is preparing for a forecasted "super El Niño" winter that could bring severe flooding and coastal storm damage, putting a spotlight on the region's aging stormwater systems and century-old dams.

The condition of the city's outdated drainage networks and old dam infrastructure raises the prospect of upgrade and repair work as officials move to reduce flood risk ahead of extreme weather.

For contractors, aging stormwater and dam assets typically translate into demand for civil and water-infrastructure projects, from drainage improvements to structural rehabilitation of dams.

Firms working in San Diego County should watch for accelerated public-works spending tied to storm preparedness and emergency repairs as the El Niño season develops.