Storm Water Systems

 Helper Storm Drain Improvements

Helper City Storm Drain Design

FCE has worked with Helper City meet future needs and bring its infrastructure up to current standards. Work included the installation of a new storm drain system, as the lack of one created flooding and sedimentation problems. The $10 million storm drain system included over 46,000 feet of 15-inch to 36-inch pipe, hundreds of manholes and catch basins, several outfalls to the Price River, and thousands of feet of new curb and gutter throughout the city.

Design and construction occurred simultaneously with improvements to the culinary and sewer systems. The city was divided into seven planning zones and five construction areas to better manage the extent of construction at any given time. Construction occurred over a four-year period. During that time, over 200,000 feet (or about 38 miles) of pipe was installed between the three utilities.

 AF Storm Drain cover



American Fork Storm Drain Study

The primary purpose of this storm drain analysis was to gain a better understanding of the storm water flow paths in the American Fork East area. To accomplish this it was necessary to take another look at the rainfall intensities that were used in previous storm drain studies for American Fork City, and in a few instances, adjust the sub-basins geographic boundaries. Where warranted, refinements were made in rainfall intensities that would subsequently be used to determine peak runoff. Another purpose was to determine the peak flow at three crossings along State Street, as the crossings may need to be upgraded in their conveyance capacity to account for the increased runoff that would occur when UDOT widens State Street.

FCE modeled the storm runoff using HEC-HMS and sized storm drainage conveyance facilities according to the calculated storm runoff. The city used the report for developments and capital facilities.

Dry Creek Master Plan

SDD Dry Creek Storm Water Master Plan

This project is a regional storm water master plan of the Dry Creek drainage. During large storm events, Dry Creek, a drainage ditch in Springville, occasionally floods. Storm water from Springville, Mapleton, and Spanish Fork enter Dry Creek at various locations. The Springville Drainage District will use this plan to anticipate storm flows in Dry Creek and to make the necessary improvements to Dry Creek to prevent flooding in the future.

The master plan includes a Capital Facilities Plan for the district to make incremental improvements year by year to make Dry Creek a reliable storm drainage route to Utah Lake.


 South Jordan Storm Drain CFP Cover  

South Jordan Storm Drain Master Plan

FCE was retained to prepare a Storm Drainage Capital Facility Plan (CFP) for the City of South Jordan to assist them with new development. Planning included the Midas Creek Basin, 104th South and Redwood Road Basins. All basins were modeled using hydrologic and hydraulic techniques. 

The CFP identifies the city's storm drainage system needs in 5 years, 10 years, and at buildout based on the 2002 Storm Drain Master Plan; the overall phasing and sequencing of improvements; identification of the associated costs; and cost allocation for the purpose of justifying the collection of future impact fees from future developments. Coordination with the City, Salt Lake County Flood Control, and the developers was necessary.