4S Ranch by Newland Communities is a 2,900-acre community adjacent to Rancho Bernardo. Upon completion, it is planned to feature 4,715 single-family homes and townhomes. This was the first arch storm drain project approved and used by San Diego County.

The storm drain system was a critical path item. By working multiple fronts, Hydro-Arch was able to expedite the schedule and complete the project within the time constraints.

Fixed road elevations created severe size constraints for the storm drain system. Hydro-Arch’s engineer ES2 designed a low, wide arch structure that met the heavy flow requirements and fit easily within the size constraints.

Location:

San Diego, CA

Owner:

4S Kelwood General Partnership

Civil Engineer:

Nolte Associates

Structural Engineer:

ES2

Governing Agency:

County of San Diego