Our 150th Mystery Bridge takes us to Mannville, in Somerset County, New Jersey, located west of Edison and even New York City. This bridge came to our attention on bridgehunter.com because of its fancy portal bracings as well as the vertical end posts. Judging by the plaque on the portal bracing, the bridge was built in 1875. Judging by its features and the fact that steel was not as comonly used as it was 15 years later, this bridge was definitely built of either cast or wrought iron. The number of spans, judging by the tunnel view, is between four and six, thus making the length of the entire bridge between 200 and 400 feet long. The structure used to serve a railline connecting the area with Philadelphia and Reading in Pennsylvania. In fact, the bridge was part of the Philadelphia-Reading Railroad consortium, which was established in 1833 and had been in service until 1976. It was one of the oldest railroads in the country.
The bridge was replaced with a two-span Parker through truss though the date is not given, nor is there information in bridgehunter.com. Hence the first question that comes about is when the present-day span was built and this span removed.
It is unknown what type of truss was used for this railroad bridge, though at first hand, it appears to have been a Howe through truss design. Yet at the time of its construction, other truss designs were also used that have Lattice features, such as the Post, Whipple and even Pratt. So looks can be deceiving. So the next question is what type of truss bridge was this crossing.
And lastly, the third question behind this bridge is who built this to begin with and what was the motive behind the portals and end posts, which are not only typical for iron truss bridges during that time, but also one of the most ornamental of the bridges in the area? Although these trusses are rare to find these days, decorative truss bridges show not only the engineer’s signature but also the artwork that was put into the structure, especially when it comes to cast or wrought iron. These were dominant between 1870 and 1895 when steel became the norm for truss bridge construction and with it, sleeker truss designs with letter-shaped portals, such as the common A-frame, as well as W, M, WV, and MA, as well as Howe Lattice.
To to review the questions we need to solve for this research:
When was the truss bridge replaced by the current structure?
What type of truss bridge was this crossing?
Who was behind the design for this railroad crossing?
And with that, best of luck with the research. Feel free to submit your comments here if you find some information on the bridge. Happy Bridgehunting and happy trails! 🙂
Bridgeport, Michigan. August 2018. Standing on a finished work of art. The Bridgeport (State Street) Bridge spans the Cass River. The structure had been rehabilitated, turning a pair of rusty and partially twisted Pratt through trusses leaning on a center pier into a structure that had just been put together for the first time. Hours of welding and new bolts, restoring it in-kind and complete with new decking and new railing. The Bridgeport Bridge has become a centerpiece of tourism in a town, which neighbors another popular tourist attraction, Frankenmuth.
The bridge itself is a cousin resemblance to a pair of bridges built in Jackson County, Minnesota, where I grew up. This was one of them: The Petersburg Road Bridge which was built in 1907 by a company that became a primary supplier of bridges for a decade, the Joliet Bridge and Iron Works Company. The portals are typical of such a bridge built by Joliet, the one that was later adopted by other bridge builders. Another bridge of similar features was built two years later, spanning the same river as this one: West Branch Des Moines River, but just south of Windom. Both structures are now extant. Another feature are the builder plaques that represent either a shield or a New York-style trapezoid, as you can see in the Bridgeport Bridge shot.
Still what was the bridge company all about? I did some research on this while writing a book on Jackson County’s bridges a decade ago and found that the Joliet Bridge and Iron Company was like a fame flower (Phemeranthus rugospermus)- it built dozens of bridges during its short existence.
The company was founded in 1896 by Robert C. Morrison and had agents throughout the USA, including Max J. Frey, the company’s agent in St. Louis, who may have been responsible for the Upper Midwest. Much of the work was concentrated in the South and Midwest, mostly in Michigan, Tennessee, Arkansas, Missouri, Illinois and Minnesota, though the company also built bridges in countries outside the United States. It garnered international reputation for its prompt action and good workmanship. At its peak, 400 people were employed at Joliet by 1914 with its bridge building headquarters located on Collins Street, right next to the penetiary. A subsidiary plant under the direction of George Larimer was in operation in Memphis, Tennessee from 1909 until its closure by 1912. Apart from the Bridgeport Bridge, some of the noteworthy bridges built by Joliet during its almost 25 year run include the earliest known existing bridges- a pair of twin suspension bridges at Chautauqua Park in Pontiac, Illinois, constructed in 1898. Other examples include the existing historic bridges in Michigan, such as the Black Bridge at Tiny’s Farm and Church in Frankenmuth, the Gugel Bridge south of Frankenmuth, Currie Parkway Bridge and Smith Crossing both in Midland. The Bello Street Bridge at Pismo Beach in California is the only example of a bridge built the furthest away from Joliet’s coverage. Minnesota once had a lot of bridges built by Joliet, eight of which in Jackson County. All of them have since disappeared.
Despite its popularity in bridge construction, the Joliet Bridge and Iron Company was forced to shut down briefly when Robert C. Morrison died in 1913. His son Raymond K. Morrison took over operations afterwards and reorganized the company as the Joliet Bridge and Construction Company in 1920. That company continued to construct bridges in the region, despite the decline in steel mills due to the Great Depression and later lesser demand for the product. The company ceased all operations by 1985, making it one of only a few bridge companies that had dominated bridge building at the turn of the century and survived through the Reagan era of the 1980s. Key structures built during Ray’s era included the Algoma Street Drawbridge in Oshkosh, Wisconsin, and the Braceville Arch Bridge in Illinois, which used to carry Route 66. Both structures no longer exist, but it does lead to questions of what other structures had been built by the company before it folded permanently. Just as important is which bridges in foreign countries were built by Joliet, regardless of which era.
Joliet Bridge and Iron is not related to another company located in the same city, the Joliet Iron and Steel Works Company. That company was founded in 1869 but constructed many steel parts for buildings, bridges and the like. That company was taken over three times before it became part of US Steel in 1936. The company closed down by the early 1980s but the site was later converted to a historic site.
The Joliet Bridge and Iron Company represents a bridge company that survived many mergers and crises and still built many structures that represented fine examples of infrastructure that expanded throughout the USA during the first half of the 20th Century. Its innovative designs and great workmanship has resulted in many structures still standing today, most of which in Illinois and Michigan. Many of them have been listed on the National Register of Historic Places and some have even been restored to their former glory. Nevertheless there are still many that have long since disappeared that deserve recognition because of their association with the company and the Morrison family. You can find a database of the bridges that were built by Joliet below:
LIMA, IOWA- If there is one county that has a wide selection of through truss bridges that have been left in their places with concrete bridges serving as functional crossings- and observation points for passers-by, it is Fayette County, in northeastern Iowa. At least 10 unique crossings can be found in the county, each with its unique history behind its bridge builder, let alone the local history associated with it. Some are well documented, while others are not but their value is worth researching.
The Lima Bridge is one of those that belongs to the latter. The bridge spans Volga River on Heron Road at the state recreational area between the villages of Albany and Wadena. The structure features a pin-connected, seven-panel, Pratt through truss span with M-frame portal bracings and V-laced struts supported by heel bracings. The bridge is clearly visible from the concrete bridge which has been in service since 1979, yet when accessing the bridge, one has to be aware of brushes and other vegetation. In fact given the vegetational overgrowth on the bridge during my visit in 2011, the bridge’s structural integrity is stable and there’s no doubt the relict will remain there for years to come.
There is little history about this bridge in general, except to say that if we count the current concrete structure, this is the fourth crossing at this location. According to history, the first bridge was a bowstring arch span, built in 1865, though there was no mentioning of the builder of the bridge. Judging by the outriggers and the H-beams, this bridge may have been built by the King Bridge Company, as it had been established in 1858 by Zenas King, seven years before the first crossing was built.
The crossing was subsequentially washed away by floodwaters in 1875 and was replaced with another crossing. This is one where the debate comes in. Sources have pinned the current through truss span as its replacement crossings. However, its portal bracings show that the truss span was built much later, between 1890 and 1910. During the 1870s and 80s, portal bracings were characterized by its Town Lattice features, supported with ornamental shapes that were sometimes curvy. Beginning in the 1890s the portal bracings based on alphabets were introduced, which featured frames resembling the letters A, M, V, W, VW, MA, and X. Howe lattice portals that feature rhombus shapes were also introduced at the same time and they became common for use through the first three decades of the 20th Century. Today’s letter-style portal bracings are predominantly A-frame but M-frames and Howe lattice are also commonly used as well.
This leads us to the following questions to be settled regarding this bridge:
Was the bowstring arch bridge built as the first or second crossing?
If it was the second crossing, what did the original crossing look like?
If it was the original crossing, what did the second crossing look like, when was it built and by whom?
When was the through truss truss bridge built? In the second black and white picture there was a builder’s plaque which has since disappeared.
In theory, there were four crossings that have served this location since 1865. The only argument that would justify three crossings built would be if repairs were made to the through truss span, such as replacing the portal bracings. This was practiced with some of the through truss spans during the introduction of the letter-based portal bracings in 1890 and two examples can be found in Washington County, at Bunker Mill near Kalona and Hickory Avenue Bridge over the English River, the latter has since been abandoned in place.
Another theory was that a flood in 1947 knocked the bridge off its abutments but was later put back into place and continued to serve traffic until 1979 but that would mean finding out how the bridge was washed away and how this truss structure came about.
We do know that the Lima Bridge is one of three relicts that is left from the town of Lima. It was founded by the Light (Erastus and Harvey) Brothers in 1849, when they constructed a saw mill along the river. In addition to over a dozen houses, a church, lumber yard and general store were later added, though the general store itself survived through the 1960s when it was torn down as part of the conservation project. A railroad line also went past Lima but had only provided service until 1938. The church on Heron Road north of the bridge and an adjacent cemetary on Fox Road are the other two structures left of the community that once had over 200 people during its heyday. More information on Lima’s history can be found in the links at the end of this article. Ironically, Lima is located just three bird miles east of another village, Albany, which also boasts a through truss bridge spanning the same river. The town is now a campground area, while the bridge, which is on Hill Road is only open to pedestrians.
While there is a lot written on Lima’s history, the history of the bridge itself has many questions that have yet to be answered. We know that the through truss span still exists and serves as part of the town’s history. We know that its predecessor was a bowstring arch bridge. Yet what we don’t know at all is how many crossings have existed on Heron Road since its first one in 1865?
And for that, it’s now your turn to discuss this.
You can find more about the bridge by clicking here. This includes its predecessor (here). For more on the history of Lima, Iowa, click here.
Our next mystery bridge takes us into the mountains, but this time to the area between Ustí nad Labem (Aussig) and Liberec in northern Czechia in the region of Bohemia. The Hradčany Airport is a former military airbase located near the town of Ralsko. It’s situated in the area of confluence between the Ralsko and Ploučnice Rivers. Originally, the area was used for military combat training during the times of the Austro-Hungarian Empire as well as after the establishment of Czechoslovakia. When Nazi Germany occupied the country in 1938, the area was converted to a military airbase by the Wehrmacht, which included new runways and hangers for their fighter jets. It was one of the most important bases fort he eastern front during World War II.
As part of the measure to expel German residents out of their country, Czechoslovakia reclaimed the airbase but only for a short time, as it later became part of Soviet Army when it became a socialist republic. Again, the airbase became an important point of axis for the Soviet Union, especially during the Prague Spring of 1968, when troops entered the city and ended the revolution with military force. For 30 years, the Hradčany Airbase was an important military base for the Soviets to ensure that none of the communist states were influenced by the capitalist West.
After the fall of the communist party from power in 1989, withdrawal of Soviet troops was negotiated in February 1990. The last soldier left the district in May 1991. The district lost its military status in the same year. On January 1, 1992 the village of Ralsko was established by joining of nine villages together. Between 1993 and 2004 the area was extensively cleaned up from chemical contamination and searched for unexploded ammunition. To this day, all that remains are ruins of the airport that are beset by vandals. The area has been also used for drag racing and dance parties, yet there have been plans to convert the former base into a recreational area.
And this takes us to this bridge, the Stary zeleznicni most, a former railroad bridge located north of the former airbase. This was discovered by Czech bridgehunter Lara Vajrychová during a recent trip to the area. The structure is approximately 200 meters long and features a combination Lattice and Bailey truss design. The portal bracings are I-beam with bedstead endposts. The connections are for the most part pinned, based on Bailey truss building techniques, yet the top and bottom chords have riveted connections.
It is unknown when the structure was built but we do know that the railroad line served as an important link to the airbase from the north. It could be that the Germans had built this prior to the start of World War II as soon as Czechoslovakia was taken over in 1938. Should this argument be true, then the bridge survived the bombings unscathed, which enabled Soviet and American troops to use the bridge and the rail line to march into Germany in 1945. By the same token, if the crossing was damaged, it was likely that the Soviets rebuilt the bridge and used it to provide materials and artillery to quash any uprisings, yet that would have happened between the time the country became a communist state in 1948 and the time before the Prague Spring, 20 years later.
And this is where your help is needed here: In your opinion, were the Germans or the Russians responsible for this important crossing that made the now former airbase a key axis point (Stützpunkt) until 1990. What kind of truss design is this and who was behind ist construction?
And for that, the forum is open.
Czechoslovakia was split into Czech Republic and Slovakia through a Velvet Divorce, which happened on January 1, 1993. On January 1, 2021, the Czech Republic was renamed Czechia.
Shortly after taking office in 1933, President Franklin D. Roosevelt went to work to provide help to over a third of the population in the USA who were beset by unemployment caused by the Great Crash on October 29, 1929 which later ushered in the Great Depression. Two of the programs that were introduced were the Civilian Conservation Corps (CCC), which started on March 21, 1933, and the Works Progress Administration, which was founded on May 6, 1935. Both organizations had a general purpose: to provide employment to people who needed, whereas the CCC was mainly for those between the ages of 18 and 25. Much of the projects that were undertaken during the time of the two programs were outdoors, which included erosion control, planting trees, renaturalizing areas near bodies of water and building infrastructure to accomodate waterways and vehicular traffic, including dams and bridges.
And this is where this Pic of the Week, which is also our 145th Mystery Bridge comes into being. James Baughn photographed this unique bridge, which goes by the local name, Geode Bridge. The structure spans Saunder’s Creek at the park which also bears the stream’s name in Mount Pleasant, located in Henry County in southeastern Iowa. The build date of this very unique stone bridge goes back to 1933, which would mean that the CCC would have constructed the bridge. The bridge is no more than 40 feet long and is relativey short- between 10 and 15 feet. The bridge design is a pony girder with triangular pointed vertical posts at the end, resembling high heels. The railings are art deco.
There are some questions that surround this story about the bridge. The first one is who was behind the design of the bridge, for it is one of the most unique bridges- a rare structure that is one of a kind in Iowa. The second question is where the stones used were quarried and hauled to the site while the last one is the most important: How was it built and how long did it take to build it? For the third question, it is important to note that modern techniques in today’s standards would have this bridge completed between 3-6 months. But if we go back tot he Depression Era, where vehicles are smaller and slower, the building techniques are more hands-on, the machinery was sometimes old and outdated and the fuel needed was rationed due tot he lack of supply, the time to build a structure like the Geode Bridge was probably much longer than six months; presumably it was in the range of 12 months. More research into the bridge’s history, including interviews and like, would be needed to answer the aforementioned questions.
Saunders Park features this bridge as one of its masterpieces, together with a historic log house and a pair of gazeebos along with some shelter houses, playground and some forest, thus making it one of the most attractive places in the city. It showcases some natural scenery to those working or being treated for injuries/ illnesses at the nearby hospital as well as school children, who attend Manning School only a couple blocks away. It’s a stop that is worth a couple hours, especially if you travel long distances or are visiting friends and relatives in Mt. Pleasant.
James photographed this unique structure in 2013 during the Historic Bridge Weekend, tying it in with the visit to the Oakland Mills Bridge. While the bridge may be small, it’s worth a photo session, regardless of how it is done- wedding, graduation or for a simple calendar. While there has never been a calendar on Iowa’s historic bridges, should there be one, this bridge should be one of them that should be added, regardless of who took the shot.
Author’s Note:If you have any information about the bridge’s history, feel free to add this in the Comment section below. You can also include the info in the BHC’s facebook pages or that of Historic Bridges of Iowa as well as Iowa Bridges Past and Today.
The best discoveries are found in your backyard. This mystery bridge fits the historian stereotype like a glove and can be found in the southeastern part of Glauchau in the area now designated as a natural reserve, behind the Rudolph Virchow Hospital and adjacent Agricola High School. We found this bridge as pure coincidence, while we were hiking and taking pictures on a Sunday afternoon. The structure is a two-span deck arch bridge all made with metal, and the connections are welded. The bridge has a total length of 25 meters and it appeared that it used to span a body of water which has since shrunk in size, leaving the area the bridge crosses to be nothing more but a dry ravine to be forded because much of the decking on the bridge is in critical condition with missing or cracked flooring. The bridge used to carry an abandoned road, which we later found that it led to the hospital grounds and given its width, it was probably used only for cars and pedestrians only.
The bridge has a unique feature that is rare to find for bridges built during its time. One side of the bridge exposes the arch section where only a couple vertical beams support the arches. Both the arches as well as the center piers are tubular and are welded together. On the opposite end, the arches are covered with paneling resembling an appearance of a faux pas arch span: a beam bridge that is decorated with only the outer arches, whose spandrels are covered with paneling, thus making the bridge look like a real arch bridge but it’s merely a beam bridge that functions as the crossing supporting traffic.
It is unknown when the bridge was built, let alone who built it, but the area where the bridge was discovered by accident belongs to a natural area known as the Rümpfwald, an area that is the size of 10 football pitches that extends from the hospital, along the cemetary and past Bismarck Tower going south and east towards Rottenbach Creek and the adjacent forest near Niederlungwitz and St. Egidien, located six kilometers southeast of Glauchau’s Railway station. A map featuring both the forest and the bridge shows you the size of the natural area.
Before the habitat was created, it was once a military complex with a long history, most of which still hangs a dark cloud over Glauchau to this day. In 1914, a military complex was established under the name Friedrich August Kaserne, which covered an area including the hospital, and the western half of Rümpfwald. Originally used for the German army, it was made irrelevant when Germany was forced to reduce its military to a quarter of ist size through the Versailles Treaty of 1919. Nevertheless, when Adolf Hitler took power in 1933, the military base was reactivated and used as a concentration camp for political prisoners. By 1936, it became a base for the Wehrmacht- the Nazi army. By 1945, the Soviet troops took over the eastern half of Germany and with that, the military base in Glauchau, which would later be expanded to include the production of weaponry and tanks as well as a practice area. The Soviets occupied the base until 1993, when the last Russian troops left the base. Afterwards, the entire complex was razed to the ground and the area was converted to a natural area, yet some of the relicts from the past still exist today….
….including this bridge. Given its current, deteriorating state, the bridge will most likely succumb to nature as the arches and the superstructure have corroded to a point where a full rehabilitation would be deemed impossible. Yet given the fact that this bridge is one of the most neglected of all of Glauchau’s bridges, it would be a shame to see it disappear without knowing about its history. While only a small portion of the military base has been preserved as a mini-library, perhaps there is a place for this unique bridge, even if the dark past of the military days in Glauchau have long since disappeared…..
The Watchman’s post and the Historic Gate to the military base at Wolffersdorfstrasse and the north entrance to the hospital were preserved, restored and converted to a library. The smallest library in Germany was completed in 2009 and received the 2011 Pegasus Award, the most important award of the EU devoted to preserving places of historic interest. More information on the project can be found here. Ironically, book booth, a phone booth is located on the opposite end of the street at Virchowstrasse. There, you can donate your books and take one from the booth with. It’s next to a panel of what was part of the Berlin Wall.
Plans are in the making to expand the Virchow Hospital further into the forest and former military compound, which includes rehabilitation areas and a health care sector. When the work starts remains open.
One of the hallmarks of the Boston & Albany route for many years were the truss highway overhead bridges that were part of the massive grade separation project undertaken between 1880 and 1920. A layout based on the B&A invariably needs to include some highway overpasses and the area I am modeled naturally included some. […]
Our next Pic of the Week tribute to James Baughn takes us out of Missouri and to neighboring Iowa. Located southeast of Mount Pleasant, the county seat of Henry County in the southeastern corner of the state is the Oakland Mills Truss Bridge. Spanning the Skunk River west of Franklin Avenue, the bridge was built in 1876 by the Missouri Valley Bridge and Iron Company which was based in Leavenworth, Kansas. It’s one of a handful of combination spans left in the State of Iowa, featuring (from north to south) a Pratt half-hip, a wooden trestle, two Pratt through trusses and a four-panel Pratt pony. Sources indicated the trestle may have replaced a third Pratt through truss span but it hasn’t been confirmed in the bridge records. The entire truss system features pinned connections while the southern through truss span has ornamental portal bracings. The bridge was converted into a park in the 1970s and has been on the National Register of Historic Places for almost a half century.
The Missouri Valley was one of a few companies that lasted well into the modern era, having been formed in 1874. It was dissolved in 1975 after a fire destroyed the shop at its original home in Leavenworth. It was reorganized shortly afterwards but it left the bridge building business altogether. The Kansas State Historical Society did an extensive write-up on the company’s history, which you can view here. In the 101 years of business, the company constructed a wide variety of bridges, ranging from single and multiple span truss bridges to cantilever spans. It even constructed a concrete pony truss in New Mexico in 1915, one of two of its kind left in the US. 80% of all bridges built by Missouri Valley were towards the south central part of the country, concentrating on Missouri, Kansas, Oklahoma, Arkansas and Texas. Only two bridges in Iowa were reportedly built by this company, yet the Oakland Mills is the only one left in the state that’s still standing.
And it is also one of the most popular bridges to visit among bridge lovers, tourists and historians as one can make a picnic on the bridge and devote time to spending it on the bridge. Even at night, one is greeted with Christmas lighting as was my case when I visited the bridge in 2011 in the evening, on the eve of the Historic Bridge Weekend in St. Louis. But James’ pic was taken at the time of the Historic Bridge Weekend in Iowa- two years later! In my opinion, the daytime shot was better than all the shots I took because of the lighting.
Still, who’s competing? 🙂 We both agree: The bridge is worth stopping for a visit, no matter for what purpose. And if properly and regularly maintained, the bridge will be around for generations to come. ❤ 🙂
One bridge that a person should visit while bridgehunting is this structure: The Orient Bridge. Located south of Harrisburg, this unique truss structure can be seen easily from Darby Creek Road where County Road 26 and Ohio State Highway 726 meet. The 225-foot long bridge features a Whipple through truss span with one of the most ornamental features of a portal bracing one will see while looking for bridges in Ohio. The portal bracing features from the top down, trapezoidal beam with four-leaf pedestals carved out, followed by a one-rhombus Lattice with ornaments at the Xes, and lastly a Town Lattice with heels. Builders plaque is on the top tier as well as finials that look like an ornamental bowl set with covers. Built in 1885 by the Cleveland Bridge and Iron Company, the Orient Bridge represents the most ornamental example of a bridge built by this bridge building company. Ironically, another bridge built by the same company, can be found in Paoli, Indiana. There, a female truck driver tried driving across the truss bridge causing it to collapse. Fortunately, the bridge has been restored to its original glory.
Here are some more bridge facts you will find in a video recently produced by History in Your Own Backyard.
Some other stories and facts you can find through bridgehunter.com and historicbridges.org. Just click on the highlighted words and you will be directed to the respective sites. Enjoy the info and hope you will take a chance to visit the bridge on your next road trip. 🙂
Imagine this scenario: You have a rail line that is abandoned but not before leaving in the rail ties and rail track. You have a pair of abandoned railroad cars, one of which used to be a dining car while the other used to be a loading bed for logs. And your town needs a new bridge because the old one collapsed during a flood. Your town doesn’t have enough money to build a super, duper new concrete bridge. Your replacement bridge must be 40 feet long. How would you create your make-shift bridge?
This was the question that two of the bridge builders had when they were finding ways to recycle steel and wood for a unique bridge design of their own. Daniel Lane, who later established the Lane Bridge Company in New York, and the bridge building firm of Miller & Borcherding, based in St. Louis, were not quite well-known bridge builders in the US in comparison with the likes of Wrought Iron Bridge and the King family in Ohio, let alone the bridge builders from the Minneapolis school. However the designers found a creative, but also affordable way to design truss bridges, using recycled materials such as steel parts, wiring and wood.
Using the Warren truss design, with its W-shaped pattern as a motif, they came up with a unique design with a three-panel truss span, where the center panel features the A-frame. The difference is how the outer panels are constructed and how the diagonal beams are constructed.
The Lane Truss
Daniel Lane, who was the proprietor of the Lane Bridge Works Company developed the truss design using old railroad and trolley tracks. Between 1890 and 1901 the bridge company constructed single span Howe truss bridge designs, using old rails which were reformed and clamped together by bolts that were once used for laying the track. These rods were to represent the upper and lower chord of the design, pinned together by nuts and bolts by just simply inserting the bolts through the rails and screwing the nut on afterward. This made the disassembling and reassembling of the truss design a lot easier. This design was to be a Howe truss configuration but with three panels with the center span consisting of an A-frame design. Many of the trusses constructed during Lane’s tenure were no longer than 100 ft. in length.
While there were other truss designs that were developed or even modified with the purpose of using recycled materials, the Miller-Borcherding and the Lane trusses represent a more common example of this type of trend. With bridge building firms in fierce competition, combined with the rise in the price of steel, regions with a dense population but with enough financial resources were able to take advantage of the offers provided by them and were greeted with sturdy but sometimes fancy truss spans, using designs that were becoming more and more common for use: Pratt, Warren, Pennsylvania, Parker and Baltimore. The regions with a sparse population and with that, the lack of financial resources, were forced to either go with cheaper offers by smaller, less known bridge firms or had to resort with recycling the materials to be used for crossings. Both of these were done through local firms that only existed for a short period of time because of the competition. Yet these were the firms that designed and patented the bridge design for the purpose of making a crossing that is affordable to build and easier to disassemble and reassemble elsewhere.
The idea of disassembling and reassembling trusses was later adapted with the introduction of standardized trusses beginning in 1910 with riveted connections. Yet the shortage of steel during the two World Wars and a Great Depression in between also led to the pinned-connected truss spans to be reused elsewhere on roads that were less traveled. In any case, the idea of recycling materials was kept but at the cost of creativity as seen with the two truss designs presented here. The Miller-Borcherding and Lane Trusses represent one of the last examples of truss designs where creativity but with less use of materials, like steel, came together like bread and butter. And in today’s world of bridge building, both are left aside in the name of functionality, the mentality most engineers have, to ensure a crossing carries a road from point A to point B.