September 8th, Saturday – The Secret City of Tennessee, Oak Ridge

Monday Memories

First Published September 8, 2018

Well, we went exploring again and what we discovered about the secret city of Tennessee we want to share part of with you now.  We visited the Y 12 National Security Complex, we went on a three hour DOE bus tour, and we visited the Manhattan Project National Historical Park.


national park manhattan project

bus tour our bus for the day

Today everyone knows it as Oak Ridge, Tennessee.  During WW II it was the fifth largest city in Tennessee.  By 1945 75,000 people lived here.  There were 8,000 students in the school system.  It had the third largest bus system in the U.S.  It utilized over 13 percent of the nation’s electricity.  Then it was known only as the Clinton Engineer Works.  Yet, unless you had a need to know, you had no idea that it even existed.  Even the Governor of Tennessee at that time had no knowledge of this city.

Originally some 3,000 people resided in the area in approximately 1,000 homes scattered throughout the communities of Scarboro, Wheat, Elza and Robertsville.  These were close knit communities of hardworking farmers descended from pioneers of the region.  Few automobiles could be found in the area.  There were schools, churches, stores, and a post office.  Most everyone traveled either on foot or by horseback.  Little did they know how their lives were going to be turned upside down.

The catalyst that helped to bring about the transformation of this peaceful part of the state of Tennessee into a major secret city was in a word WAR.

history of oak ridge the beginning the us at war need for bobm

But there was more.  While war was raging around the world President Roosevelt was soon faced with a difficult decision.  Should he approve the Manhattan Project to build the first atomic bomb.  There was doubt as to whether it could be done.  The project would cost billions of dollars.  The top secret, three-year plan to build an atomic bomb was a calculated risk.  A warning, though, that Germany was already working on such a bomb convinced the President to approve the project.

history of oak ridge the beginning mahattan project display

Now the question became Where to build the facilities for the Manhattan Project?  After surveying several sites in different states, the Army Corps of Engineers, under the direction of General Lesile R Groves, finally selected 60,000 acres in East Tennessee.


If it takes our home

The area was selected for several reasons:

  • Ridges separated the different facilities, the thinking being then that if something happened at one site, the others would be protected by the ridge
  • TVA could provide large quantities of electricity
  • Cooling water was available from the Clinch River
  • Mild climate permitted year-round construction
  • Two rail lines were available to bring in supplies
  • Nearby Knoxville provided a good labor supply

In September of 1942 the United States tacked eviction notices on every home in the area.  People were given two to six weeks to leave their homes.  All they were told was that their land was needed for a project to end the war.

oak ridge displacement picture eviction notice sent to all

As their patriotic contribution to the war effort, most displaced families moved without a fuss.  Some took jobs in Knoxville, Clinton and other regional towns.  Some found land nearby on which to continue their lives as farmers.  Almost overnight the four small farming communities that had been there disappeared.

One of the interesting stories of this era is that of the Bethel Church.  Believing that their beloved church was going to be destroyed like so many other structures they erected a monument in loving memory of the church.

Monument of bethel church

However, the church is still standing today.  The government decided that

bethel baptist church outside back

bethel inside of church

it could use the church to their advantage.  Though the congregation was no longer allowed to meet in the church, the building was spared to serve as a work place for engineers who were developing plans for the Graphic Reactor.  The church was also used for other important experiments during the Manhattan project.  Because it was large inside and had no metal structure it was ideal for these experiments.


The race was now on to create an atomic bomb within three years.  Because of this even before everyone was gone and the land was completely cleared the building of the largest and most expensive secret city in the Manhattan Project had begun.

mahattan project sites

mahattan project sites oak ridge cost the most

The reason that Oak Ridge existed but did not exist was of course the Manhattan Project.  The Manhattan Project was involved in collecting uranium 235 for the first atomic bomb.  Below is a map of Oak Ridge and the location of the three facilities which were there at the time.

map location of 3 different plants

K-25 Gaseous Diffusion Plant.  Worked on perfecting a process for the enrichment of U-235.  This plant has been torn down but the National Park Service is working on a plan to build an interpretive facility and museum on the original site.

k 25 gaseous diffusion plant

Y-12 Electromagnetic Plant.  Separated the heavier U-238 atoms from the lighter U-235 atoms.  The later was used in the first atom bomb.  Construction began in 1943 and operation began in 1944.  The plant covered 500 acres.  The cost of construction was over $300,000.  I’ll have more about this plant in a later blog.

story of oak ridge y 12 picture

X-10 Graphite Reactor.  Worked on perfecting a process for producing plutonium from uranium. I’ll have more about this plant in a later blog.

story of oak ridge x 10 graphite reactor picture

So, thousands of top scientists, engineers and military personnel were ordered to Oak Ridge.  Construction workers, secretaries, educators, and others decided to come for many reasons:  the promise of high-paying jobs, and the chance to help end the war.

oak ridge 1942 to 45 display

The initial plan in 1942 called for housing 13,000 residents.  By 1945, there were 75,000 residents.  It’s no wonder then that houses were constructed every 30 minutes at the height of the Manhattan Project.  There were many types of housing including:  cemesto houses (cement and asbestos homes often considered the most desirable because they were extremely well insulated), trailers, apartments, barracks, dormitories, flat tops (which were prefabricated houses) and other multiple dwellings.

oak ridge types of housing display

cemesta house breakfast is ready explained

cemesta house breakfast is ready picture

Housing was assigned based on military rank, level of employment, marital status and number of people per household. The largest family that lived at Oak Ridge was that of Mr. and Mrs. Melvin Otto Sportsman from Little Rock, Arkansas.  The family of 12 inhabited an expandable trailer at 615 Detroit Way, Gamble Valley Trailer Camp.

oak ridge largest family in the community picture

Singles also came to Oak Ridge.  Fresh out of colleges and universities they were recruited to travel to Oak Ridge and work at the plants (X-10, Y-12, K-25) or in other vital positions for the Manhattan Project.

singles life 1

singles life single girl in her room

singles life meal time

The architectural firm of Skidmore, Ownings and Merrill designed the city to attract and keep personnel in Oak Ridge.  They left trees and the natural contour of the land in their plan.

housing overall view air view of homes

They designed each neighborhood to have its own school and shopping centers.  There were bowling alleys, movie theaters, recreational centers and the town even had its own symphony orchestra.

oak ridge keeping them entertained and happy 2

Security as one would guess was extremely tight at Oak Ridge.  Once the perimeters of Oak Ridge were set a 90 mile long fence was built around it.  The fence was constantly patrolled by soldiers on foot or horseback.  Guard towers were also located at strategic locations.  The Oak Ridge guard force grew to number about 1,000 men.

guard tower

From 1943 to 1949 anyone coming into Oak Ridge had to pass through one of seven entry gates (the gates are still standing but no longer used) guarded by military police.  People and vehicles would be searched.

One such gate


All residents of Oak Ridge over the age of 12 were required to wear ID badges at all times and they had to present them to guards upon entering the city.

security badges overview

Age 12

Woman with badges

There were several other ways in the which the secret was kept.  I met and talked with a daughter whose mother worked at Y-12 during the Manhattan Project.  She stated the following:

  • that throughout the community there were informants whose job was to listen and report on what others said and to who. If you said too much you were removed from Oak Ridge.

see hear tell

  • Jobs were compartmentalized. You had your job but you did not know what the person next to you might be doing or why
  • Residents only knew and were told that they were helping to end the war. Since most of them had loved ones fighting they were more than interested in bringing a swift end to the war.

Finally, as we all know people found out about Oak Ridge.  They found out almost immediately after the first atom bomb was dropped. The secret was now out for the whole world to know.  Residents of Oak Ridge were elated.

bomb newspaper when it dropped

bomb newspaper congats to oak ridge workers

Today Oak Ridge is an incorporated community of about 30,000 residents.  In 1953 they voted down incorporation because they feared higher taxes and the loss of benefits such as free home repair and free heating oil. In 1955, however, President Eisenhower signed the Community Disposal Bill  that provided the city with a decade of financing.  One again the vote to

oak ridge city on its own display

Incorporate came up in 1959 and on May 5th the residents voted overwhelmingly for incorporation.  Many of the homes that they were renting they now bought.  A lot of these houses are still standing today but almost everyone has changed in some way – an addition, a garage, siding, etc.

oak ridge city on its own newspaper announcement

In the end even with maximum security, enforced secrecy, and wartime rationing, many who lived in Oak Ridge during WW II will tell you that it was the best time of their life.

Why?  Because each worker, each family member had a purpose:  to win the war.  In addition, because Oak Ridge had been put together so hastily there were few social traditions or confining customs to hinder communication and community participation.  Finally, it became a campus-like environment of enthusiasm and friendship.

Well, the secret is out, the secret city of Tennessee known as Oak Ridge.  Thanks for joining us our journey of discovery.  We learned so much and came away with a new appreciation for the sacrifices that so many made in order to bring the war to an end.  The story of Oak Ridge is truly a remarkable story that needs to be told to one and all.

Time to sign off and wish everyone a great weekend.  Whatever you may be doing or wherever you may be going we hope you enjoy.  In closing let me leave you with this:

Image result for make happy those who are near

As always,  if you are coming to the end of your day with concerns and worries, let me suggest that you turn them over to God.  After all, He is going to be up all night so why not let him handle them for you.

Time now for our evening prayers and eventually some shut-eye.  Till tomorrow.

These are the voyages of  Graybeard and it’s occupants, four paws and two humans.  Our continuing mission: to explore as many new states as possible, to seek out new acquaintances and make new friends, to boldly go where we have not been before

4 thoughts on “September 8th, Saturday – The Secret City of Tennessee, Oak Ridge

  1. This was a very informative post! I am so glad you posted this again. I had no idea! We plan to visit the Smokey Mountains in 2023, and I will add this to our agenda. The bus tour sounds like a good idea, too. One can learn so much information from a guide. I also wonder if such a project could happen today. Back then, people gave up their homes for the greater good. Today, it seems for some the greater good has gone out the window in favor of individual freedom. Let’s give the issue to God, as you suggest in your post. That way, we can be hopeful for our country’s future.


    1. Times, unfortunately, have changed and I dare say not for the better. I see it here in our development where all too many people insist on “their way” rather than what is good for everyone. The only thing to do is indeed give it to God. Have a great week.

      Liked by 1 person

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