Tag Archives: slip-formed concrete

Did shacks temporarily shelter workers at Tillotson’s Vinton Street site?

by baggyparagraphs

Vinton Street Shacks

By Ronald Ahrens

This photo from Tillotson Construction Company’s archives looks south from the site of the Vinton Street elevator, completed in 1950. On the far right you see the main house, which is finished but for windows. The driveway is formed up. Leftover rebar is in the lower left and scrap is heaped in the center.

It’s unknown whether the silver trailer was being used in connection with the job, perhaps as an office. The black car, which could be a 1938 Buick, and the ugly-duckling blue-gray car, which could be a Plymouth (or maybe a Hudson?)–did they belong to employees?

What especially intrigues us are the shacks along the street. Were they part of the job–again, as office space, or to accommodate  workers? Two of my Tillotson uncles have strained their memories but aren’t able to put together this part of the story, explaining why the photo was taken.

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The Big Springs, Nebraska, elevator proved to be a Mayer-Osborn Construction job

by kocart
The Cheppell, Nebraska elevator built by Chalmers & Borton

The Chappell, Nebraska elevator built by Chalmers & Borton. 

Story and photos by Kristen Cart

My grandfather William Osborn built an elevator in the western Nebraska town of Chappell, according to my dad Jerry Osborn. Dad’s recollections have guided our search thus far, for Mayer-Osborn elevators. Surely over the kitchen table he heard the names of towns where his absent father had construction jobs. Or perhaps he saw the postmarks of letters sent home.

Chappell was probably stamped on one of those postmarked letters, or it was the nearest town with a motel, because when I went to visit in 2011, there was nary a Mayer-Osborn elevator in evidence. Impressive elevators there were, but I found out later that they all had the ubiquitous Chalmers & Borton nameplate, the trademark of Grandpa’s biggest competitor.

The Mayer-Osborn elevator lacked the annex when it was first built. It is the same plan as used in McCook, Neb. and Blencoe, Iowa.

The Mayer-Osborn elevator at Big Springs, Neb. lacked the annex when it was first built. It is the same style as used in McCook, Neb., and Blencoe, Iowa.

One stop east on the rail line, however, was a large, handsome elevator that looked like one of Mayer-Osborn’s jobs. It was the spitting image of the first elevator Grandpa built on his own at McCook, Neb. The first time I saw it, I was curious enough to snap a photo, but identification was going to wait for another year. My dad knew nothing about Big Springs.

When Gary Rich, a contributor to this blog, looked into the builders of the elevators he photographed, he solved the mystery. He identified the Big Springs elevator by its manhole covers inside the driveway, each embossed with “Mayer-Osborn Construction, Denver, Colo.” above the Hutchinson Foundry stamp.

The Big Springs, Neb. elevator in October, 2012

The Big Springs, Neb., elevator in October, 2012. 

I paid another visit to Big Springs last fall after our Wyoming elk hunt. We didn’t get any elk, but I did get some nice photographs of the elevator. It was a sleepy Sunday with no one around. Next time, perhaps I can see inside.

It is an honor to pay respects to my grandfather’s enduring work. It is living history of a kind that is rarely noticed or mentioned. Once gone, it is scarcely remembered except in dusty repositories of pictures, and in mostly forgotten stories.

At Big Springs, Neb., that day of fading away is still far off in the future.

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The Vinton Street elevator’s driveway took special planning before construction

by baggyparagraphs

 

Vinton Street Drive way

By Ronald Ahrens

The Vinton Street elevator‘s driveway required the building of plenty of formwork before concrete could be poured. Here we see two men making final preparations. One is sweeping the deck, while the worker at the lower right is perhaps using a tool. The unknown photographer’s shadow intrudes into the lower left part of the frame.

Records show that 17 cubic yards of concrete were allotted for the driveway and the elevator’s work floor. The amount of reinforcing steel was not recorded.

A truck shed was then built. Although we lack a photo of it after completion, the record does show that Johnson Overhead Doors were to be installed, one at each end of the shed. And of course a scale was part of the package.

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The Vinton Street elevator was Tillotson Construction’s 1950 hometown showcase

by baggyparagraphs

Scan 4

Story by Ronald Ahrens 

The Vinton Street elevator in Omaha was a significant job for Tillotson Construction Company, being a technical challenge to the nine-year-old outfit and representing a major emphasis in its subsequent marketing effort.

Lucky for us, much attention was paid to taking good photos of the elevator, including some early color images that include views of the construction process. These photos were in the hands of Uncle Tim Tillotson, who passed them to us for scanning. The color ones came from a viewer that was presumably shown to prospective clients.

With its headhouse accommodating three legs to lift the grain, it was tall. Exactly how tall isn’t recorded, but it probably came within sniffing distance of 200 feet. Only a few of the city’s downtown office towers surpassed its height, although they weren’t necessarily better-looking.

This terminal elevator had capacity of 382,880 bushels, and the legs handled distribution of the grain inside the main house.

Scan 5It also was a showcase that family and friends could see for themselves. Until then, Tillotson Construction had been building elevators in Texas and Oklahoma as well as some less far-flung places.

The elevator was completed in 1950 on a South Omaha greenfield site at 34th and Vinton Streets. The company’s office at 12th and Jones was only three miles away.

Another reason for its significance is that Reginald and Margaret Tillotson’s oldest son Charles went to work as an apprentice carpenter and hod carrier on the job. He helped to build several other elevators over the next few years.

With the Tillotson construction record now in hand, we present the following technical specifications without yet having achieved a full understanding of all the abbreviations and lingo.

General specifications

Total capacity: 382,880 bushels

Capacity: 38,878 bushels per foot

Reinforced concrete: 4776 cubic yards

Plain concrete (hoppers): 35.3 cubic yards

Reinforcing steel (includes jack rods): 286.5 tons

Average steel per cubic yard of reinforced concrete: 120 lb

Construction of the hoist very early in the process of building the Vinton Street elevator. Note the Georgia buggies near the formwork.

Construction of the hoist very early in the process of building the Vinton Street elevator. Note the Georgia buggies near the formwork.

Steel and Concrete

Below main slab: 20,932 lb/223 c.y.

Main slab: 66,579 lb/618 c.y.

Drawform walls: 233,927 lb/2100 c.y.

Driveway and work floor: no figure for steel/17 c.y.

Deep bin bottoms (including columns): no figure for steel/155 c.y.

O.H. bin bottoms: no figure for steel/40 c.y.

Bin root: no figure given for steel/90 c.y.

Scale floor (or garner, complete): no figure for steel/17 c.y.

Cupola (headhouse) walls: no figures

Distributor floor (cleaner floor): no figure for steel/8 c.y.

Cupola roof (gallery): no figure for steel/49 c.y.

Miscellaneous (headhouse): no figure for steel/640 c.y.

Attached driveway: driveway 416 c.y., track shed 403 c.y.

Construction Details

Main slab dimensions: 58 x 119.5 feet

Main slab area (outside on ground): 6690 sq ft

Weight reinforced (total) concrete  at 4000 lb per c.y., plus steel: 9838 tons

Weight plain concrete (hoppers, 4000 lb per c.y.): 70.6 tons

Weight hopper fill sand at 3000 lb per c.y.: 439.8 tons

Weight of grain at 60 lb per bushel: 11,490 tons

Weight of structural steel and machinery: 100 tons

Gross weight loaded: 21,938 tons

This extreme view shows the elevator before painting. The individual pours can be seen in the drawform walls of the bins. Note the man leaning out of the window opening on the left.

This extreme view shows the elevator before painting. The individual pours can be seen in the drawform walls of the bins. Click on the photo to enlarge the image, and you’ll note the man leaning out of the window opening on the left.

Bearing pressure: 3.28 tons per sq ft

Main slab thickness: 30 in

Main slab steel: 1 in □ at 7 in o.c.

Tank steel at bottom (round tanks): ⅝ in ⌀ at 8 in o.c.

Lineal feet of drawform walls: 975 ft

Height of drawform walls: 120 ft

Pit depth below main slab: 20 ft, 9 in

Cupola (headhouse) dimensions outside (length x width x height): 24 ft x 52 ft x no figure recorded

Machinery Details

Boot pulley: 72 in x 28 in x 3 7/16 in

Head pulley: 72 in x 28 in x 5 15/16 in

RPM head pulley 39 rpm

Belt: leg 26 in x 8-ply, conx 36 in x 4 ply

Cups: 21 x 7 in cal. at 9 in o.c. stag.

Head drive: Link belt, 100 hp

Theoretical leg capacity (Cub manufacturer rating): 17,400 bushels per hour

Actual leg capacity (80 percent of theoretical): 13,900 bushels per hour

HP required for leg (based on above actual plus 15 percent for motor): 89.8 hp

My grandfather used one of the color images from Vinton Street on its business card.

My grandfather used one of the color images from Vinton Street on its business card.

Man lift: 2 – 1.5 hp

Load out scale: Two 2500-bushel hop.

Load out spout: 15-inch diameter

Truck lift: Ehr. semi fans w. col.

Dust collector system: on legs

Cupola spouting: Trolly spouts

Driveway doors: Johnson O.H. rolling

Conveyor: Two 36-in belts and two 30-in belts

 

Also Built

Track shed

Truck shed

Office

Truck scale

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All specs, and the Bouncing Czech’s photos, delineate elevators in David City

by kocart
The Tillotson Construction of Omaha elevator also serves as a satellite antenna tower. Photo by Tom McLaughlin

The Farmers Cooperative elevator, built by Tillotson Construction Company, of Omaha, Neb., also serves today as a satellite antenna tower. Photo by Tom McLaughlin

Story by Kristen Cart

My blogging partner Ronald Ahrens said he hoped we would find the motherlode of history about the elevators his grandfather Reginald Tillotson had built. With luck and the help of his family, we finally did it.

Reginald Tillotson’s sons, Charles, Tim, and Mike have all recently shared their memories from the job sites. Tim Tillotson also found and restored a treasure trove of company documents and photos. Best of all was a set of blueprint specifications for over 100 Tillotson Construction Company slip-formed concrete elevators and annexes. Eureka!

A historical image taken in David City, dated October 28, 1964. This is not the Tillotson Construction elevator, but it's neighbor a short distance down the rail line.

A historical image taken in David City, dated October 28, 1964. This is not the Tillotson Construction elevator, but its neighbor a short distance down the rail line.

David City, Neb., is a town due west of Fremont in the eastern half of the state. One of the two elevators in town was listed in the Tillotson blueprints. Armed with our new information, I looked for pictures of the newly found elevator.

I discovered some history, instead.

The grain piled next to the elevator in the 1964 press photo is milo, a feed grain, and the pile-up was attributed to a shortage of rail cars. Scenes like this were observed all over Nebraska that year.

The elevator in the photo didn’t quite have the Tillotson look, so a quick peek at David City on a Google map showed a washed-out image with just the suggestion of a curved headhouse on a second elevator in town. Further search brought me to “The Bouncing Czech” Flickr page and beautiful photos of the Farmers Cooperative elevator I was looking for. With Tom McLaughlin’s kind permission, they are posted here.

Tom McLaughlin likes to stop and check out elevators.

In an exchange of e-mails, he wrote, “A friend of our family owned the Magowan Elevator, in Gordon, Neb., so I’ve been in that one several times. I still remember my first manlift ride–that was the scariest ride I’ve ever taken.

David City's "other" elevator. Photo by Tom McLaughlin

David City’s “other” elevator. Photo by Tom McLaughlin

“Back in the 1950s, my dad used to ‘walk the pipeline’–he literally walked the natural gas pipeline in Oklahoma, Kansas, and Nebraska, looking for signs of leaks, before they went to aerial photography and control valves.

“So he always liked to wander around the back roads and small towns, and I think that’s where I got the bug. When we would go on a trip, we never knew what route he’d take. I don’t think he did either!”

Tom’s enthusiasm is contagious.

The small towns are peaceful, yet inviting, and the elevators are fascinating. It won’t be too much longer before this blogger takes another grain elevator trip.

Specifications 

Tillotson Construction Company records show the David City elevator was built in 1951 according to the “David City Plan.” This includes five tanks, each one 18 feet in diameter and 120 feet high.

Total capacity: 180,000 bushels

Driveway: 13×17 feet with eight bins over the drive

Bins: 15 in all and overflow, with a dust bin at the exterior

Reinforced concrete: 1716 cubic yards

Plain concrete (hoppers): 20 cubic yards

Reinforcing steel (including jack rods): 81.16 tons

Steel and concrete:

Below main slab: 6632 pounds and 45 cubic yards

In main slab: 22,233 pounds and 180 cubic yards

Drawform walls: 106,320 pounds and 1253 cubic yards

Driveway and work floor: 2543 pounds and 15 cubic yards

Deep bin bottoms: 8081 pounds and 38 cubic yards

O.H. bin bottoms: 2917 pounds and 22 cubic yards

Bin root: 6122 pounds and 44 cubic yards

Scale floor: 285 pounds and 10 cubic yards

Cupola (headhouse) walls: 2830 pounds and 70 cubic yards

Distributor floor: 1494 pounds and 8 cubic yards

Cupola roof: 1586 pounds and 14 cubic yards

Miscellaneous (Boot, leg, headhouse, Tr., sink, steps, etc.): 1273 pounds and 15 cubic yards

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The elevator at Bradshaw, Nebraska, still hides the identity of its builder

by kocart

DSC_0107Story and photos by Kristen Cart

A couple of years ago, before we started this blog, I tried to find pictures of the projects we knew my grandfather William Osborn built. Sometimes I would find photos of look-alike structures at locations that my dad couldn’t remember. Most of these mysteries were eventually resolved with the help of Gary Rich, a retired Union Pacific man with an indefatigable curiosity. He visited the locations, identified a number of the builders, took beautiful photographs, and contributed his findings to this blog.

DSC_0051

The J.H. Tillotson look-alike at Bradshaw, Neb.

The Bradshaw, Neb., elevator remains an unsolved mystery. I visited the elevator early last year and photographed it from all sides. The style was a dead ringer for the elevators at Fairbury and Daykin, Neb., and Linn, Kan., all J. H. Tillotson, Contractor jobs. But since I had no access to the inside of the elevator, my tentative identification remained unverified.

Mr. Gordan, who lived across the street from the elevator, commented about the structure and its history, but his details were sparse. He said the elevator had a twin that no longer stood.

“It had problems with the headhouse,” he said.

And in another town he did not name, a similar elevator had been struck by lightning and burned.

Since the look-alike elevator in McAllaster, Kan. was demolished before we could resolve its provenance, and others also seem to have perished, it is clear that an unknown number of this type of elevator once existed. We hope to find the business records of Mayer-Osborn Construction and its predecessor, J. H. Tillotson, Contractor, to learn more about them.

The Bradshaw elevator bears an old FCA logo, but United Farmers Cooperative is apparently the current owner.

dsc_0081

New elevators

Mr. Gordan’s mother came out to greet me, but the meeting is a little vague in my memory, because I only made notes about it later. Both mother and son said the Bradshaw elevator was retired, but that the nearby gas station still operated, and the newer elevators a little down the rail line handled the grain.

I hope to visit again when the co-op is open, to learn more.

dsc_0090

Bradshaw, Nebraska

The town of Bradshaw is neat and clean, and displays a good amount of civic pride. Most notable is the broad main street–the expansive use of space has the look of a western town, rather than the neatly packed economy you see in the East. It inhabits a flat Nebraska landscape, nearly midway between Grand Island and Lincoln, with distant horizons and plenty of elbow room.

dsc_0015

Gas station

Bradshaw is well worth a return visit, preferably during harvest. Perhaps a local farmer can sit down for a cup of coffee and color in the details of this lovely Nebraska town.

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Successful concrete tests yielded an enduring elevator at Cordell, Oklahoma

by kocart

Cordell concrete tests002

Story by Kristen Cart

During a recent visit to Nebraska, Dad and I met with the son of Edwin Louis Christoffersen to go through family pictures. Young Ed produced a treasure from among his father’s personal effects. Edwin Christoffersen was superintendent for the Mayer-Osborn Construction job at Cordell Okla., and among his duties was the engineering of a safe and durable elevator. Testing the concrete from a given supplier was of paramount importance.

This logbook shows the results of the testing for each part of the elevator’s structure. It is a fascinating bit of engineering history, and it speaks for itself.

Cordell concrete tests003

Cordell concrete tests004

Cordell concrete tests005

Cordell concrete tests006You will notice that the date and time of day was included in the calculations for each test. This is how we were able to determine when the Cordell elevator was built.

While a number of factors were recorded for each test, it is not clear to us what each term meant. Perhaps some of our readers can explain the process to us.

It is a true privilege to see some of the engineering practices in use during the 1950s, at a time when slide rules did the work of computers, yielding sufficient precision to send our astronauts to the moon in the following decade.

These builders, engineers, and innovators were pioneers, working at the pinnacle of their profession. We wish to thank Ed Christoffersen for sharing this priceless piece of history.

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Newspaper clippings of the Lincoln, Nebraska, elevator show standard construction methods

by kocart

Story by Kristen Cart

christofferson042

Omaha World-Herald

Among Edwin Christoffersen’s papers were clippings from the Lincoln, Neb., elevator construction site. While this was a Chalmers & Borton project, the clippings showed an impressively large elevator in the last stages of construction.

The story of a competitor’s biggest local project would have been of great interest to Ed, a superintendent for the Mayer-Osborn Construction Company. There is little doubt that Mayer-Osborn would have tried to get this contract. However, Chalmers & Borton frequently built the largest elevators.

It appears that the continuous pour was nearly complete for the huge structure, and that the planks were installed either for decking for the crews, or for the final pour which would cover each bin with a concrete cap. Once the concrete cured, final “wrecking out” would remove the forms.

christofferson043

Omaha World-Herald

The headhouse was already in place, so the elevator was very close to completion. What cannot be seen is whether equipment that would come from subcontractors for installation in the headhouse and pit had yet arrived, and of course the run that would top the elevator and provide for grain distribution was yet to be finished.

The images provide a rare glimpse of the process, one that Edwin Christoffersen saw fit to preserve, much to our delight. This is a breathtaking view of a moment in time when America built with intrepidity and confidence, and left us with a towering legacy in the Plains.

Mike Tillotson remembers Flagler (1953), Albert City (1954), and Lincoln (1955)

by baggyparagraphs

By Mike Tillotson

I don’t have access to a computer nor know how to use one. I barely get a radio signal, and my tin-can barb-wire phone is not always clear here in the hills either.

As for the elevators I was thirteen on my first summer with my brothers. I just graduated from Grade School. Our Father helped his Father build Wood Elevators, and often was told to put out that cigarette.

Mike stands at the center of the frame while Tim captures Charles just after he has taken a rest break on the way to Flagler.

Mike stands center-frame while Tim Tillotson captures Charles after a rest break en route to Flagler with the ’53 Ford and mystery trailer.

We headed for Flagler, Colorado; seventy five miles East of Denver. Charles was driving a 53 Ford 4-door our Father bought for him. Two-tone tan that Charles had nosed, and added fender skirts, and a continental kit. We were pulling a sixteen foot trailer that we lived in for the summer.

We were paid $1.00/Hr.–60 Hrs./Week with time and one half over 40 hours. I was the time keeper, and drove a tractor with a front-end loader. I filled up the three-bag concrete mixer with sand. Someone else put the cement and limestone in the hopper. We mixed our own concrete because we were in the middle of no-where.

I remember the Super catching me putting pennies on the rail track, and helping me with the time-sheet so I could go to Denver with my brothers for the week-end.

Tillotson Home

The Tillotson home in the Ponca Hills north of Omaha. Mike still lives there. 

I remember Charles had a girl-friend, and when we came back to Omaha in September; she came in to visit him. When Charles went to meet her at the place she was staying; Sharon went with him. When Charles and Sharon met her she said she forgot something in her room, and went back to get it. After waiting about one half hour Charles sent the door man to the room. He returned and said the room was empty, and the window was open.

You have to remember this was 1953 when we were at the age of innocence, and life was pure and simple.

The following summer (1954) we went to Albert City, Iowa, 75 miles North of Council Bluffs. We rented rooms in a private home. We worked with a 20 something guy that ran the winch pulley bucket to the top of the elevator as it progressed, and brought building materials down. We also rode the bucket up and down to get on deck. The elevator bens were 125 feet to the top with a Head-House of 75 on top of that.

The winch guy went to work on another elevator the Company had going in a town about 30 miles away. This was an addition to an existing elevator–an add-on.

At noon one day he went to the top with new boots on. There were four or five planks at the top from old to new grain bens.

No hand rails or anything. They were not required at the time. I doubt OSHA even existed. He either fell or jumped going from old to new.

Some said he might have tripped with the new boots.

Charles and I bought a nice 40 Ford sedan for $75.00 off a used car lot. He didn’t want to use the 53 any more than necessary. Coming back to Omaha one week end we were zipping down a country road with corn as high-as-a-sky and started through an intersection with no stop signs.

It could be Mike waving at the photographer in this photo from atop the Flagler annex. The Ford and 16-foot trailer are also evident.

It could be Mike waving at the photographer, who is perched atop the Flagler elevator, built in 1950. The foundation for the new annex is seen at lower left.

We got broad-sided by some farmer who put us in a ditch; up side down. Later in the day when we crossed the Mormon Bridge in North Omaha; one of us reached through the front of the car to pay the Toll. The windshield was gone.

The next summer (1955) I worked in Lincoln, Nebr. by myself. My sister Mary’s future brother-in-law Merle worked on the job also.

The Elevators at that time required about 12-15 men per shift. Two shifts per day–twenty four hour continuous pour. Usually about 18-20 days to get to the top of the tanks. The jacks that raised the forms were all manually operated. Today with the advanced electrical operated jacks the number of men required is probably half.

That is the story of my teenage years in MAYBERRY.

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The Cordell, Oklahoma elevator project fused engineering prowess with family ties

by kocart

Story by Kristen Cart

christofferson041

Edwin Christoffersen was the superintendent on the Mayer-Osborn Construction project in Cordell, Okla. in 1950. His son and namesake kindly provided a notebook that gave a glimpse of the concrete engineering that went into the elevator. By trial and error, the company learned best practices, creating an enduring structure which would still operate more than sixty years later.

Edwin Louis Christofferson was the son of Jens “James” Lauritz Christoffersen, a first generation American who farmed and operated a farm stand in Fremont, Neb. Edwin was one of nine children. Ed’s sister Alice married William Osborn in 1923.

When the Mayer-Osborn enterprise was in full swing, Bill Osborn tapped relatives to manage projects or to provide manual labor. He followed a common practice.

Sons Dick and Jerry Osborn worked at various times building elevators. Bill Osborn entered partnership with Eugene Mayer, the brother of Joseph H. Tillotson’s wife Sylvia. At the Tillotson Construction Company of Omaha, Bill Osborn worked with Iver Salroth, husband of Emma, a Christoffersen cousin.

Naturally, when the opportunity arose, Ed Christoffersen found employment with his brother-in-law’s company an attractive proposition.

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Edwin Louis Christoffersen with his only child.

Ed’s son has kept a number of Mayer-Osborn keepsakes, in memory of his dad, who died when he was still quite young. One intriguing item was the logbook that Ed kept for the Cordell, Okla. elevator, recording concrete tests.

Various sand, gravel, and concrete mixtures were tested to a failure point to determine the ideal formula for a given project. The date and time of day was recorded for each test. In this journal, we discovered the year of construction for the Cordell elevator.

The elevator business brought families together to accomplish a common goal, and now, many years later, writing about the elevators brings the builders and their sons and daughters together again. The memories are kept in small personal repositories of clippings, photos and documents, and in tales of the job, and are captured fleetingly before the witnesses leave us.

Looking up at these great landmarks, we also look up to the patriarchs who built them, with respect, and awe.