The Miami-Dade County Water and Sewer Department selected Jacobs Solutions, along with two other firms, to design upgrades worth $15 million each for the county’s three wastewater treatment plants, according to a company announcement.

The other two companies are New York-based Hazen and Sawyer, P.C. and Overland, Kansas-based Black & Veatch.

That brings total contract value to about $45 million, according to Miami-Dade County Water and Sewer Department. Under the six-year professional services contract, Jacobs will support upgrades aimed at modernizing aging infrastructure, improving operational performance, mitigating climate change impacts and addressing the system’s resilience across the department’s plants and system.

“As climate change intensifies, maintaining the aging wastewater system in Miami-Dade County is an increasingly complex challenge requiring creative, integrated and holistic solutions,” said Ron Williams, senior vice president at Jacobs. “Leveraging our digital solutions, we’ll help Miami-Dade County optimize opportunities to reduce capital, operating and maintenance costs for a smarter, more reliable treatment system for the future.”

Jacobs’ award builds on a 50-year relationship with Miami-Dade County, according to the release. Its most recent experience includes acting as owner’s representative for the $2.7 billion Ocean Outfall Legislation Program and providing engineering services for the South District Wastewater Treatment Plant.

Outside of Florida, the Dallas-based company also recently won awards in the water and wastewater space. These include a $25 million contract to operate and maintain a water treatment plant in Waterbury, Connecticut, as well as a $500 million contract to build the Donald C. Tillman Advanced Water Purification Facility in Los Angeles.

Spending on sewage and waste disposal projects recently ticked down about 0.7% in February, according to U.S. Census Bureau data. Over the past 12 months however, spending in the sector jumped about 12.4%.