Siouxland Energy Cooperative April 2021

A 4.8 mile natural gas pipeline will be built from Sioux Center to Siouxland Energy Cooperative, a project that will allow for electrical production by the ethanol plant.

SIOUX CENTER—The Sioux Center City Council at its March 30 meeting approved bids for the Siouxland Energy Cooperative natural gas pipeline project.

It’s the latest step in the project that’s been in the works for about a year, with SEC seeking the city’s assistance to install a 6-inch diameter high-pressure natural gas pipeline from the city to its site 3 miles west of Sioux Center. SEC plans to use the natural gas to generate electricity.

They received six bids for the project by its March 18 deadline, with the project split into two bid packages. The first package was for work on the pipeline itself and the other for work on regulator stations along the pipeline.

This arrangement allowed for some savings to the overall project costs, according to assistant utilities manager Adam Fedders.

The city approved NPL of Naperville, IL, for $3,250,225 for the pipeline portion of the project and USDI of Unionville, MO, for $562,410 for the regulator stations along the pipeline route.

A regulator station reduces pressure within the pipeline to a certain level. Fedders said that the station northeast of Sioux Center cuts the pressure from 300 pounds per square inch down to 44 for city use.

The project price tag from the two bids is higher than the engineer’s estimate of $3.6 million due to higher than anticipated steel prices.

The pipeline will be 4.8 miles long. It will start one-eighth of a mile north of 380th Street and Harrison Avenue at the existing regulator station. From there, the pipeline will run south to 380th Street and then continue west for 3½ miles. Then, it’ll turn south for three-fourths of a mile where it will enter SEC’s property.

For the regulator station work, the project will see improvements done to the existing station at the city limits on Harrison Avenue, a new regular station on the northeast corner of SEC’s property and a new regulator station at SEC’s generator site.

Improvements at the Harrison Avenue station will include a water heater, which will help protect the pipeline from freezing by heating the gas, and other alterations for the installation of the new SEC pipeline.

With bids approved by the city council, the next step for the project is to get permitting from the Iowa Utilities Board, Fedders said. A hearing with that board is set for April 19. If approval is given, the project work should be on track to begin the first week of May.