DUKE ENERGY - ALLEN STEAM STATION
Belmont, North Carolina
One (1) 365’ Dual Flue FRP, 73’ O.D.   
Client: Alstom Power Inc.            

On June 22, 2007 the field crew finished construction
of the concrete chimney shell at Allen Station, NC.  

The Allen Station project will reduce sulfur dioxide
emissions by an estimated 95 percent.  Duke Energy will
spend approximately $425 Million on this job alone
and Allen is the 3rd of four power plant projects they’ll
install new scrubbers at in North Carolina.  
Commonwealth has been responsible for the design and
erection of all the chimneys at these locations which
includes one chimney at Marshall Station, two chimneys
at Belews Creek Station, and one at Allen.  Construction
of one more 575’ tall chimney  is scheduled to begin in
Spring 2008 at Cliffside Station.

ADM officials discuss coal dome    
By Scott T. Holland, Associate Editor, Clinton Herald
CLINTON — The new coal storage dome currently under
construction by Archer Daniels Midland should be completed
before the end of the year, company officials said Friday.  
The dome is part of the ongoing co-generation facility
construction project, an effort reportedly worth almost
half a billion dollars.  The dome, located on the north end
of the co-generation site in South Clinton, has a diameter
of 300 feet. Virtually all of the construction work takes
place inside the airform — a giant balloon inflated to serve
as the shape of the room and also the roof once the interior
concrete form is in place ADM finds a dome storage building
desirable because coal placed in the dome first also will
be the first out. Coal becomes combustible if stacked on
itself for more than a year. The strength of the dome means
coal can be piled right up to the wall of the building.  
South also said domes are in energy efficient and disaster-
resistant. ADM officials said a    key facet is the dome’s
ability to reduce emission of coal dust.


KENTUCKY UTILITIES – E.W. BROWN GENERATING STATION
Harrodsburg, Kentucky

Brown Station is the third chimney project Commonwealth is
building for Kentucky Utilities this year.  The Brown
chimney will be 561’ tall and  67’9” wide at the base.  The
large diameter requires the use of a 12-post derrick system,
and the crew will make seventy-two (72) concrete pours for
the chimney to reach its full height. Once the concrete shell
is complete in January 2008, the liner crew will mobilize and
begin installing the 404’ tall fiberglass liner to be housed
inside the chimney.
                
TEXAS UTILITIES – OAK GROVE PROJECT- UNIT 1 & 2
Franklin, Texas
Two (2) 450’ tall single flue steel
Client: Fluor Enterprises, Inc.

After mobilizing in August, the
the Commonwealth field crew has been
enduring weeks of extreme heat conditions
at the TXU jobsite with temperatures
exceeding 100 degrees!  They’ve continued
to remain on schedule and expect to complete
erection of the Unit 1 concrete shell at the
end of October. Upon completion of the
entire project, both chimneys will reach a
height of 450’ and will each include a
single steel liner with Pennguard.


JOHN W. TURK, JR. POWER PLANT STATION
FULTON, ARKANSAS

American Electric Power’s Southwestern Electric
Power Company is building a brand new 600-megawatt (MW)
coal-fueled power plant at Fulton Arkansas.  The Shaw
Group, who has been awarded the engineering, procurement
and construction contract, has selected Commonwealth to
design and build the 643’ tall, single flue steel,
concrete chimney system required at the new John W. Turk,
Jr. Power Plant.              
    
 
RIVER HILL POWER, LLC
KARTHAUS, PENNSYLVANIA

River Hill Power has been granted a permit to build a
brand new 290MW waste coal-fired electric plant in
Karthaus, Pennsylvania, located approximately 125 miles
east of the Ohio/Pennsylvania border.  Commonwealth will
be responsible for the design and construction for one (1)
500’ single flue steel reinforced concrete chimney.  
Construction is estimated to begin in May 2008.


DUKE ENERGY – CLIFFSIDE MODERNIZATION PROJECT
NORTH CAROLINA

This project includes the construction of one 800-megawatt
(MW) advanced clean coal unit which will replace the
existing units 1-4.  For Commonwealth, this means the
construction of one (1) new 575’ tall, tri-flue FRP
reinforced concrete chimney system.  Construction is
scheduled for the Spring of 2008 through Fall 2010, with
the entire project expected to be complete in 2012.