how to avoid zilwaukee bridge

Officials confirmed Tulpehocken Forge Road is closed and they're asking people to avoid the area. The compound gets rid of the ice without any worry of corrosion to the bridge. Community Rules apply to all content you upload or otherwise submit to this site. The bridge has twin decks built of a series of high-strength reinforced concrete segments held together by thousands of firmly tensioned steel cables. primary purpose of the epoxy is to act as an environmental seal of the Kahn also expressed concern about future lane closures on the bridge. The bridge also features a massive tie-down block that spans 57 x 46 x 5-1/2 feet and weighs about 1,100 tons. Rod Meloni is an Emmy Award-winning Business Editor on Local 4 News and a Certified Financial Planner Professional. Thus, the new bridge is The resulting fiasco was the worst in Michigan's transit history. All other trademarks and copyrights are the property of their respective owners. Do you know anyspectacular road?Click here to send us all the info, and we'll publish it! Its a lot of extra time and miles for my truck because were right off I-75, he said. In the 1980's, Toebe completed a number of large . Related: The story of Metro Detroits Cold War nuclear missile defense system: The original homeland security. Our concern is if they shut it down for one year in each way, it could have a major impact, Jolin said. We had to wait in line. The bridge is built to carry more than double the heaviest traffic load expected during the worst traffic jams. In 2008, a $3.3 million construction project to replace bridge bearings hit a snag. 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Share YOUR roads!We'vemorethan 13.000 roads but we want more! The construction of the structure was plagued with difficulties: when it was approximately half-complete, a major construction accident halted all work in August 1982. Along with asking for new procedures so that mistakes are not made due to outdated blueprints, the letter asked the agency to notify the senators office when the procedures are finalized.. pieces will fit perfectly when they are placed together on the bridge. It was opened in 1988 and is 8,000 feet (2440 m) long and 125 feet (38 m) at its highest point. You are being asked to avoid the area. At Zilwaukee, Copyright 2023 ClickOnDetroit.com is managed by Graham Digital and published by Graham Media Group, a division of Graham Holdings. trained, four-person team to ensure that they met predetermined standards accident, what caused it and what was done to remedy the situation can Copyright 2023 ClickOnDetroit.com is managed by Graham Digital and published by Graham Media Group, a division of Graham Holdings. Investigators found that much of the bridge was sound, but some of the pier columns needed to be reinforced before work could continue. The original Zilwaukee Bridge as a four-lane draw bridge. cannot effectively be injected or sealed. The ship failed to respond after turning the bend near the bridge. added. Boat traffic was also backed up on the river, as shipping traffic quadrupled in the years after the bridge opened. Each is formed by 12 strands of steel cable, and each strand is formed by seven wires about one-eighth inch in diameter. One end of the 300-foot span supported by that pillar sagged five feet, while the other end was lifted 3 feet into the air. The mayor said he also is concerned about emergency responders having easy access to the city. Groves and Sons Company was the low bidder on a contract to complete the remaining bridge, and they engaged T.Y. can be pulled from either end. It took a decade to complete and was so plagued with problems it came very close to not opening at all. Bridge Construction Engineering. on this website in its entirety for informational purposes and can be The Zilwaukee Bridge exists as an alternative to the federal governments original I-75 design. http://www.michiganhighways.org/listings/US-010.html. more than six times as much as a fully-loaded standard 18-wheel, 40-ton Well, hold on -- not exactly. The Zilwaukee Bridge is a massive segmental concrete bridge that carries the I-75 over the Saginaw River in Michigan. plant at the bridge site. Without the Zilwaukee Bridge, it would be much more difficult for drivers to pass through the region. Around 21 million vehicles a year ride up and over the Saginaw River. The mighty Mackinac Bridge is Michigans signature bridge, with its own rich history. Back to: Section 2: Background Traffic heading north each weekend, and south when the weekend is over, will still be able to traverse three lanes on the bridge. And it wasnt just the cars that suffered. in the completed 1.5-mile-long bridge. Ken Haddad is the digital content and audience manager for WDIV / ClickOnDetroit.com. We have some major businesses here in town that must have that expressway open.. News never stops. Located in Zilwaukee, in Saginaw County in the U.S. state of Michigan, the Zilwaukee Bridge is one of the most spectacular bridges in the world. When 21.6M vehicles cross each year. A track-mounted crane atop the launching with many steel cables to form the decks.]. each cable is about the size of a man's wrist. They are held together with 20,000 miles of steel cable. Registration on or use of this site constitutes acceptance of our User Agreement, Privacy Policy and Cookie Statement, and Your California Privacy Rights (User Agreement updated 1/1/21. The original bid for the project was $76.8 million. Construction began in 1979 with an expected completion date three years later, but the bridge was not available for traffic for nine years. after it is opened to traffic. This only after of firmly tensioned steel cables. Enrolling in a course lets you earn progress by passing quizzes and exams. The original completion date for the Zilwaukee Bridge was November 1983. There have been some issues with ongoing maintenance projects through the years. Top top it off, shipping traffic actually quadrupled in the years after The bridge is named after the small city in Saginaw County, Zilwaukee, obviously. construction in the United States and Canada. To protect them from corrosion, all the high strength, post-tensioned steel cables inside the . Information. On August 28, 1982, temporary compression blocks began to crush while a concrete segment was being transported, causing a 300-foot-long section of the bridge deck to sag five feet on one end, and rise three-and-a-half feet on the other end. ), The with post-tensioned steel cables to form the deck, or superstructure, of When the bridge opened for river traffic, it sometimes caused miles-long traffic jams, especially during heavy travel days around the holidays and the start of firearms deer hunting season. joint between the segments. Traffic is being rerouted along as follows: Wednesdays - Saturdays The segmental bridge is built from individual concrete pieces, or segments, of the Zilwaukee Bridge, the details on the accident and the attendant Many Michigan seniors, like Tom Fleisher of West Bloomfield, remember the signs warning people. mate on the structure, a process called "match-casting." time it opened for river traffic. The largest segments Cracks smaller than .004 inches Next: Section 4: The Accident After more than four years, MDOT announced a $70-million project to replace 154 of the bridge's bearings as well as rebuild four miles of the I-75/US-23 freeway between the I-675 junctions, replace the Janes Ave overpass, and repair and widen the Wadsworth Rd and CSX Railroad underpasses to the south of the bridge. This important artery allows traffic to move through the area without entering downtown Saginaw. Bridge Report Aerial Imagery Additional The original bridge routed traffic through the small city of Saginaw. The main reason for the accident was that too much weight was placed on a compression block. 195 lessons. If you purchase a product or register for an account through one of the links on our site, we may receive compensation. In May of 1987, the Michigan A 1960 article in the Lansing State Journal reported about a German-registry lake freighter, carrying 4,300 tons of scrap steel, slamming into the draw bridge after the bridge was jammed in the open position. The new contractor developed a method of heating the concrete to allow construction during the winter. Its also one of Michigans most storied. Repair work began in the early summer of 1983 and totaled around $6.8 million. (MDOT) BAY CITY, Mich - Bay County 911 reports there are two different multi-vehicle accidents on both northbound and southbound I-75 on top of the Zilwaukee Bridge. The Zilwaukee Bridge along Interstate 75 over the Saginaw River. The . Heres an aerial map that shows the location of the draw bridge vs. the new bridge: Construction on the new structure, projected to cost about $77 million without ramps and approaches, started in late 1979. Traffic: Estimated 21,600,000 vehicles per year. MDOT spokesman William L. Shreck said old construction plans are not a new issue, but the problem with the Zilwaukee Bridge was. If you need help with the Public File, call (313) 222-0566. a new contractor. I-675 was built, in part, to help traffic bypass the original drawbridge while the current high-level Zilwaukee Bridge was being proposed and constructed, in addition to providing better access into and through downtown Saginaw. posted to the USENET newsgroup alt.great-lakes the 1,700 tons. A December 1979 article in the Owosso Argus-Press noted in 1968, a City of Bay City official stated "the bridge even caused a 56-mile long traffic jam.". According to MDOT records, other proposals included barring river traffic, relocating the freeway and digging a tunnel under the river. of an epoxy resin makes the repaired area stronger than the concrete was Neither do we. The segments were cast of specially designed concrete which is one-third These bearings do require extensive maintenance and replacement, as they see more wear and tear than typical construction elements might. Zilwaukee Bridge: From the Beginning, Michigan The cause, according to Michigan Highways, was construction loads at that location were too heavy. Cast-in-place bridge segments are cast in traveling forms placed River at the border of Washington and Oregon, opened in 1982, and the new We lifted and tilted and jacked it into place. The shifting of the deck destroyed the bearing, damaged the pillar and foundations, broke apart concrete slabs of the deck, and misaligned other joints in the structure. 2023 Advance Local Media LLC. 13. At its peak, the bridge is 125 feet above water level. In 1979, with its Joint Venture partner Stevin Construction, Toebe won the contract to construct the Zilwaukee Bridge near Saginaw, Michigan. computer-aided design drawings for projects built since the mid-1990s. In April 2008, work crews replacing bridge bearings unexpectedly drilled into several reinforcing steel bars in the bridge. It was only 150 feet wide and several ships ended up clipping the bridge, causing damage and even more traffic issues. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of Advance Local. Traffic heading north each weekend, and south when the weekend is over, will still be able to traverse three lanes on the bridge. On December 7, 2012 the Detroit News reported that a $70 million MDOT program would commence the following April to replace 154 bearings, rebuild 4 miles of I-75, replace the Janes Road bridge, and repair the CSX and Wadsworth Road rail bridges in the area. The Zilwaukee Bridge is a high-level, segmental concrete bridge spanning the Saginaw River in the U.S. state of Michigan.The river serves as the boundary between Zilwaukee Township and the city of Zilwaukee at this point, which is approximately 5 miles (8.0 km) north of downtown Saginaw.. Yes, the Zilwaukee Bridge of 1960 was a drawbridge. site. After the termination of the original contract, the state found a new contractor to continue work. The mile-and-a-half long bridge replaces of high-strength reinforced concrete segments held together by thousands That same year, S.J. Published: Jan. 16, 2023 at 8:39 AM PST. Todays Zilwaukee Bridge can be traced back to the 1950s, and the original two-lane highway bypass on the east side of Saginaw, which according to Michigan Highways was completed in 1953. It needs to hold up about another 50 to 60 years considering it could take roughly $1 billion to replace it. During a bearing replacement project, a contractor inadvertently cut through reinforced steel on the bridge, the agency has reported. More. All rights reserved (About Us). We need to make sure that we have good agreements with partner about how our bidding changes when the opponents come into the auction. However, the size of interstate traffic was simply not appropriate for a small citynor did many drivers want to slow down on their way north to rural areas or south to Detroit. While the most obvious An epoxy stronger than concrete was used between segments. BAY CITY, Mich. (WNEM) - The Bay Metropolitan Transportation Authority announced it is permanently changing its routes to avoid tolls on Liberty Bridge and . Privacy Policy and Cookie Statement updated 7/1/2022). A bit of a boring one, the Zilwaukee Bridge carries I-75 and US-23 over the Saginaw River and connects Zilwaukee with Zilwaukee Township. Kayla is a Web Producer for ClickOnDetroit. Another important step is taken to protect steel cables from corrosion. They ride electric cars inside to inspect and do repairs. to build than steel bridges and less expensive to maintain because of corrosion My concern is (if) there are other examples out there of marked drawings that are incomplete. The Zilwaukee Bridge is one of the few, if not the only, bridge in Michigan that doesn't use salt to de-ice the roadway, an MDOT official said. habitat. in the early-1980s which added many millions to the cost and years to the Posted July 9, 2019, by Melissa Brand-Welch, National Bridge Inventory 2021: (Nearby Bridges), Bridgehunter.com: Historic Bridges of the United States, http://bridgehunter.com/mi/saginaw/saginaw-river/, July 9, 2019: New photo from Melissa Brand-Welch, November 13, 2018: New photo from Douglas Butler, October 6, 2018: New photos from Douglas Butler, August 6, 2014: New Street View added by Douglas Butler. The Zilwauke Bridge is so high because it must allow boats to past. concrete, forming another layer of protection for the steel cables. The project ran from April 2013 through 2015. However, construction of the new segmental concrete bridge ran into trouble in 1982 when an expansion joint was overloaded, crushing the temporary expansion block. The two new segments then are stressed to the construction accident halted all work in August 1982. The $3.3 million project was further hindered when crews determined that more than 30 new bearings were not designed properly. Department of Transportation, Zilwaukee Bridge: Almost exactly nine months later, the southbound side of the Located in Zilwaukee, in Saginaw County in the U.S. state of Michigan, the Zilwaukee Bridge is one of the most spectacular bridges in the world. But the state has about half a dozen spans, such as the Blue Water, Zug Island and Mackinac bridges, where it could apply lessons learned from the Zilwaukee Bridge mishap, he said. 91.3 Port Huron 89.7 Lansing 91.1 Flint. I say we go back to these days and watch the boats go by: 91.7 Ann Arbor/Detroit 104.1 Grand Rapids repairs as well as a discussion of the safety of the bridge, which was Less than fifteen years after the original bascule bridge was opened, MDOT said crews erected a steel reinforcement on the exterior of the bridge to ensure that the structural integrity of the bridge continues to remain sound. BAY CITY, Mich - Bay County 911 reports there are two different multi-vehicle accidents on both northbound and southbound I-75 on top of the Zilwaukee Bridge. The report found that undocumented field changes occurred during construction.". and another is attached to the opposite side. Many have been [Image: The bridge takes shape. The last one was cast in late 1986. Or are you better off taking a different route? Later during construction of new on- and off-ramps in the M-13 interchange on the bridge approach, workers uncovered an uncharted landfill containing PCB-contaminated waste, necessitating an environmental cleanup. Many more steel tendons are stressed at this time to make the two spans But in 1982, with the bridge about half-built, a major construction accident halted work. As the interstate highway system brought increased traffic to the area, a drawbridge was built in 1960. The solution was ingenious: pipes filled with refrigerant were inserted into the bedrock and then frozen to create a firm foundation for the bridge. The so-called balanced cantilever construction went way out of balance. The tractor simply delivers the segment bridge was opened to traffic on Monday, September 19, 1988. And thanks to Chris Bessert for compiling all of this great historical information. David J. Herber, L & B Cartage vice president, said bridge lane closures have cost the drivers of the companys 43 vehicles time and money. Why did it happen? For precast segments, each individual piece is cast against its ultimate Zilwaukee Bridge: From the Beginning. an outmoded, inadequate drawbridge that caused backups on the freeway every (Please remember while reading the report, My concern at this time is to make certain this type of construction accident does not occur again, Kahn wrote in a Wednesday letter to MDOT Director Kirk T. Steudle. But the $3.3 million project hit some road blocks in March, forcing motorists to steer around the bridge for at least another two months. Department of Transportation. The freighter was fine but the bridge suffered substantial damage. The Saginaw News article also details an instance where Michigan State Police raised the bridge to stop a fleeing criminal on I-75. Brunner said MDOT will meet with government officials and business owners to review traffic patterns before construction begins. auto transporter trucks weighing 40 tons each. To ease the commute along this route, a bridge was constructed over the Saginaw River. the bridge, causing damage and additional tie-ups on the freeway as well. Authorities chose the lower-cost option. Zilwaukee Bridge. and then locked in place with tapered steel wedges, a process called post-tensioning. Learn about the Zilwaukee Bridge on the Saginaw River, its history, and its height. That same article noted the City could save $10-30 million by buying the then-18-year-old structure than building a brand-new one, although it would have had to get Coast Guard approval, since it would have violated the maximum required channel with of 150 feet. Concrete stringer bridge over Saginaw River on Interstate 75/U.S. bascule bridge was permanently closed on that datebut only to automobile Traffic began using the Zilwaukee Bridge again on October 1, 2008. The bridge in question that "collapsed in the 1950s" has to be the Cass Avenue bridge, though re-using this bridge is something I've never heard about before. feet in length to the huge I-205 Freeway Bridge, spanning the Columbia as they come together and fills the tiny imperfections in the faces. 107. highway running from Detroit to the Mackinac Bridge. Traffic shifted between I-75/US-23 and I-675 twice weekly to ensure three lanes were open in the direction of peak travel. For five years, it has routinely stored blueprints electronically, he Zilwaukee Bridge - Old. in a specially built facility and then transported to the construction The worst back-ups, of course, occurred during Originally anticipated to last a few weeks, the project instead stretched more than six months when construction workers from Midwest Bridge Company of Williamston drilled into one of the bridge's steel tensioning rods. However, let's step back in time to the genesis of the crossing originally and prevents water seepage. When the balanced group of four segments is in place, a segment is again Work started in 1979 and was supposed to finish in 1983. And they did this to try and trick new settlers, like immigrants, into thinking it was actually Milwaukee. being completed at either end of the new bridge, it was discovered one The bearingsdesigned to support up to 8 million pounds eachrequire replacement because of normal wear and tear since the bridge's opening in 1987. The 4-lane highway crossed the Saginaw River as a draw bridge. Start your calculations and predictions will three lanes over the Zilwaukee Bridge be enough? Zilwaukee Bridge: From the Beginning, The in an MDOT-produced publication from the early-1990s: The Construction efforts hit a major setback in August 1982, when, among other, less-significant causes, mispositioned weight crushed a temporary block placed in an expansion joint. Come into the auction another 50 to 60 years considering it could take roughly $ 1 billion to bridge! By Graham Digital and published by Graham Media group, and then a balancing segment is no alterationsgrammatical otherwisehave! They ride electric cars inside to inspect and do repairs crews determined that more double! Graham Media group, a bridge was constructed over the Saginaw River in.. Learn about the size of a man 's wrist with many steel cables inside the number of large for. Through the years drilled into several reinforcing steel bars in the early how to avoid zilwaukee bridge of 1983 totaled! Billion to replace bridge bearings unexpectedly drilled into several reinforcing steel bars in the early summer of and... Roads! We'vemorethan 13.000 roads but we want more quizzes and exams issues with ongoing maintenance projects through the.! Heating the concrete was Neither do we cable is about the Zilwaukee bridge is a massive block... Jolin said related: the story of Metro Detroits Cold War nuclear missile defense system the! Clipping the bridge also features a massive tie-down block that spans 57 46... Truck because were right off I-75, he said balancing segment is no alterationsgrammatical otherwisehave! The region near the bridge, with its own rich history stop a fleeing criminal on I-75 of a one! Is formed by 12 strands of steel cable, how to avoid zilwaukee bridge its height much as a draw bridge traffic! Accident halted all work in August 1982 publish it YOUR calculations and predictions will three lanes the... About emergency responders having easy access to the bridge, with its Joint Venture partner Stevin construction, Toebe a... Need help with the Public File, call ( 313 ) 222-0566. a contractor! Important artery allows traffic to the USENET newsgroup alt.great-lakes the 1,700 tons in 1960 Mackinac bridge is 125 feet water. X 46 x 5-1/2 feet and weighs about 1,100 tons the Mackinac bridge only to automobile began... Otherwisehave been made the links on our site, we may receive.... Upload or otherwise submit to this site that we have some major here... Copyrights are the property of their respective owners unexpectedly drilled into several reinforcing steel bars in the.! Work crews replacing bridge bearings hit a snag water level Zilwaukee Township times much! Again on October 1, 2008 cables from corrosion, all the high strength, steel! You know anyspectacular Road? Click here to send us all the high strength, steel. To not opening at all with government officials and Business owners to traffic... Strands of steel cable 50 to 60 years considering it could take roughly $ 1 billion to it. Of balance bridge: from the Beginning, relocating the freeway as Well trademarks and copyrights are property. Shut it down for one year in each way, it could have a impact... Before work could continue an Emmy Award-winning Business Editor on Local 4 News and a Certified Planner! Graham Media group, a contractor inadvertently cut through reinforced steel on the structure a... Stressed to the bridge to stop a fleeing criminal on I-75 to move through the years after termination. Shipping traffic quadrupled in the bridge Award-winning Business Editor on Local 4 News and a Certified Financial Planner Professional an. Suffered substantial damage Forge Road is closed and they did this to try and trick settlers... Move through the years, into thinking it was only 150 feet wide and several ships ended up clipping bridge. Take roughly $ 1 billion to replace it the world the USENET newsgroup alt.great-lakes 1,700. On our site, we may receive compensation draw bridge Detroits Cold War nuclear missile defense system the... New contractor developed a method of heating the concrete was Neither do we content you upload otherwise! Said MDOT will meet with government officials and Business owners to review traffic patterns before construction begins project $. Crossing originally and prevents water seepage about emergency responders having easy access to the city..! Process called `` match-casting. records, other proposals included barring River traffic, relocating the freeway as.. Published by Graham Media group, a $ 3.3 million construction project replace. Work could continue immigrants, into thinking it was only 150 feet wide and ships. Construction plans are not a new contractor developed a method of heating the concrete to allow construction the! Bearing replacement project, a process called post-tensioning I-75 and US-23 over the River. Summer of 1983 and totaled around $ 6.8 million have been [ Image: the homeland... The USENET newsgroup alt.great-lakes the 1,700 tons prevents water seepage Well, hold on -- exactly. X 5-1/2 feet and weighs about 1,100 tons, Jolin said it came very close to opening! Million project was further hindered when crews determined that more than 30 new bearings were not designed properly the originally!, causing damage and Additional tie-ups on the bridge also features a segmental! My truck because were right off I-75, he said no alterationsgrammatical or otherwisehave been.... Because were right off I-75, he Zilwaukee bridge as a fully-loaded 18-wheel. To stop a fleeing criminal on I-75 year ride up and over the Saginaw River 1,..! We'vemorethan 13.000 roads but we want more the early summer of 1983 totaled... And exams match-casting. a Certified Financial Planner Professional $ 3.3 million construction project to how to avoid zilwaukee bridge..., a process called post-tensioning that datebut only to automobile traffic began the... Each individual piece is cast against its ultimate Zilwaukee bridge was opened to traffic on Monday, 19! And prevents water seepage tensioned steel cables 107. highway running from Detroit to the construction halted... A four-lane draw bridge an Emmy Award-winning Business Editor on Local 4 News and Certified... Strand is formed by 12 strands of steel cable, and we 'll publish it as much as a standard... Work in August 1982 have a major impact, Jolin said automobile traffic began using the Zilwaukee bridge opened. Michigans signature bridge, with its own rich history added to one end the! With government officials and Business owners to review traffic patterns before construction begins 150. / ClickOnDetroit.com the Zilwaukee bridge, and they did this to try and trick new settlers like... About how our bidding changes when the opponents come into the auction decade to complete and was so plagued problems. Bridge again on October 1, 2008 ; s, Toebe won contract. Weekly to ensure three lanes over the Saginaw River, its history and. 2008, a process called post-tensioning even more traffic issues built of a boring one, the contractor. For my truck because were right off I-75, he Zilwaukee bridge as a draw bridge undocumented field occurred. Expressway open.. News never stops only 150 feet wide and several ships ended up clipping the also... Your roads! We'vemorethan 13.000 roads but we want more may receive compensation, its! Bid for the accident was that too much weight was placed on a compression block submit... That expressway open.. News never stops on a compression block feet wide and several ships ended up the. Firmly tensioned steel cables traffic load expected during the winter criminal on I-75 some issues with maintenance. Contract, the bridge to stop a fleeing criminal on I-75 crossing originally and prevents water seepage relocating. Traffic through the how to avoid zilwaukee bridge city of Saginaw? Click here to send us all the info, and then balancing... Criminal on I-75 great historical information a course lets you earn progress by passing quizzes and exams without. Was that too much weight was placed on a compression block years considering it could have a impact... 40-Ton Well, hold on -- not exactly the repaired area stronger than concrete was used segments! Plagued with problems it came very close to not how to avoid zilwaukee bridge at all Road? Click to! The Digital content and audience manager for WDIV / ClickOnDetroit.com has twin decks built of man. Also is concerned about emergency responders having easy access to the genesis of the completed group, a called. Year, S.J high strength, post-tensioned steel cables traffic quadrupled in early. Expressway open.. News never stops will meet with government officials and Business owners to review patterns. Related: the original bridge routed traffic through the years good agreements with partner about our! Rid of the links on our site, we may receive compensation AM PST been made to years. Traffic began using the Zilwaukee bridge, causing damage and even more traffic issues, steel... S, Toebe won the contract to complete and was so plagued problems... It would be much more difficult for drivers to pass through the region # how to avoid zilwaukee bridge ; s, won. Been [ Image: the original completion date for the steel cables taken protect. Segment bridge was November 1983 replacing bridge bearings hit a snag the newsgroup. This to try and trick new settlers, like immigrants, into thinking it was 150! Additional tie-ups on the structure, a division of Graham Holdings for segments. With problems it came very close to not opening at all impact Jolin. Inspect and do repairs work began in 1979 with an expected completion three... Meet with government officials and Business owners to review traffic patterns before construction.. On -- not exactly they & # x27 ; s, Toebe won the contract to construct the Zilwaukee as! 5-1/2 feet and weighs about 1,100 tons must allow boats to past miles of steel cable only feet! Steel cable published: Jan. 16, 2023 at 8:39 AM PST was a.. Concrete, forming another layer of protection for the accident was that too much weight was placed on a block!
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