Road Construction on Garfield Ave. through the month of June. The corner on B40 should be completed today (06/02) and have normal access. You can access the plant through Sioux Center and turn at Bomgaars and head west then south. 

Scale Hours




We will be closed June 16th for maintenance




Upcoming Road Repairs to Garfield Avenue

To Whom It May Concern:

Beginning in late May or early June Sioux County will be resurfacing Garfield Ave between B40 and Carmel.  We will always maintain access to the plant, however there will be times when only one driveway will be available.  Siouxland will be ensuring adequate access to deliver corn, haul co-products and ethanol.  We will be utilizing the “service road” running north and south between the driveways.  Please exercise additional caution while the road repairs are ongoing.  

Below is a tentative timeline for when the road repairs will occur:

May 15 – Start to see detour and road work signage.

June 1 – Garfield Ave from Carmel to SEC North Driveway will be closed.  SEC will still have both driveways open from the south until the work gets to the plant.  It is estimated SEC will lose the north driveway around June 12.  Once the road is paved between the 2 SEC driveways, they will let the road cure for 3-5 days while prep work is done in other areas.

June 15-20 – Open up Carmel to SEC north driveway and close B40 to SEC south driveway.

July 1 – main paving complete on the entire mile


Additional turning lane and shoulder work will be done as time allows.  This may affect access to Siouxland at a later date.  SEC will keep you posted as we know more.

Please note this is the current timeframe we have from the county engineer.  If there are changes that will have a significant impact on the above schedule, we will let you know.


Please reach out with questions.

SEC Management


Siouxland Energy was formed to build, own, and operate an ethanol plant near Sioux Center, Iowa.

The ethanol produced from corn is sold for blending with gasoline as an octane enhancer and as a fuel. In 2007 Siouxland Energy completed an expansion project that increased production capacity to 60,000,000 gallons annually.

Within the last couple of years, Siouxland Energy has completed several debottlenecking and carbon intensity projects that allow the production of a low carbon fuel at a production pace of 70,000,000 gallons per year.


Siouxland Energy Cooperative is owned by 385 farmer members and is a closed cooperative. We are located in the northwest corner of Iowa, just west of Sioux Center.

Sioux Center’s growth and modernization has been steady through the years, with the population growing to about 7,579 residents, according to the U.S. Census Bureau. Ideally located in northwest Sioux County, Iowa, Sioux Center is close to Interstates 29 and 90, allowing business and industry to continue to expand. Agriculture is the root of Sioux Center and strongly supports the rural population with ag-related businesses like ours.


Learn More

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