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PROJECT

CONSTRUCTED COST

PROJECT TYPE:

PROJECT METHOD

50 MGPY ETHANOL PLANT

AVENTINE RENEWABLE ENERGY INC.

AURORA, NE

$ 50 Million

ETHANOL FACILITY

DESIGN BUILD

GENERAL CONTRACTOR:

GRAIN HANDLING DESIGN BUILD CONTRACTOR :

OWNER:

Robinson Construction

Aventine Renewable Energy Inc.

PROJECT:

CONSTRUCTED COST:

PROJECT TYPE:

PROJECT METHOD

Greater Omaha Packing

$30 Million

FOOD PROCESSING FACILITY

DESIGN BID

CONTRACTOR:

MECHANICAL ENGINEER:

STRUCTURAL ENGINEER:

OWNER:

C.J. Schneider Engineering

SCHNEIDER STRUCTURAL ENGINEERING INC.

Greater Omaha Packing

Due to the topography of the site the unloading and cattle pen elevations were higher than the area to the West where the new Kill Floor, Hot Box, and Welfare additions were to be constructed.  As a result an innovative cast-in-place retaining wall system was designed to retain over 25 feet of soil below the cattle pens and also allow the cattle to enter the Kill Floor addition at the proper elevation above the 2nd floor of the Kill Floor addition.  The new State of the Art Kill Floor addition covered approximately 225,000 square feet in 2 levels and is able to process 2500+ head of cattle per day and 14,000 cattle per week.  The design of the kill floor kept in consideration the requirements of a very sanitary design and included the use of a closed air system, trapless drains, and Stainless Steel lined walls. 

The structures for the expansion were supported by shallow spread footings as well as deep foundations.   Shallow foundations were used for the lighter structures such as the cattle unloading area, cattle pens, hot box, and the welfare area.  The more heavily loaded Kill Floor area was supported by augercast piling, grade beams, and pile caps.  The Kill Floor Structure was mostly constructed with Precast Floors, Roof, and Walls.  The Hot Box Structure was constructed with a Precast Roof and Insulated metal panel walls.  The Cattle unloading area roof was constructed with Steel Bar Joists, Joist Girders, Steel beams and Steel Columns. 

The Welfare area floor was constructed with composite concrete floor deck, bar joists, steel beams, and steel columns.  The Welfare area roof was constructed with metal deck, bar joists, steel beams, and steel columns. Special considerations were required for footing configurations and column locations due to many of the additions occurring adjacent or between existing structures.  In fact half of the Welfare area expansion was constructed over the the existing welfare area and new columns penetrated the existing low roof. 

SSE also provided a Waste Water treatment building to enclose the waste treatment system specified by CJS to treat the plant waste prior to entering the City of Omaha sewer system.  SSE also provided the engineering for the support and bracing of the overhead chain conveyors in the kill floor and in the hot boxes.   

Keywords: Construction Administration, Repairs-Retrofit, Observation-Inspection-Investigation, Architectural, Design Build, Industrial, Food Processing, Offices, Component Design, Storage, Shipping, Pipe Support, Concrete, Cast-In-Place Concrete, Precast/Prestressed Concrete, Foundations, Pile Foundations, Steel, Insulated Metal Panels, Lightgage Metal Framing, Steel, Masonry, CMU-Concrete Block, Brick-Tile, and Retaining Wall

Page Author:  Paul M. Douglas, PE, SE