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24-609: Stillwater Bridge may refer to: Stillwater Bridge (St. Croix River) , a lift bridge joining Stillwater, Minnesota and Houlton, Wisconsin Stillwater Bridge (Hudson River, New York) , a bridge carrying Saratoga-Rensselaer County Roads 125. Stillwater Bridge (Salmon River, New York) , Stillwater, New York, listed on the NRHP in Oswego County, New York Topics referred to by

48-529: A brand new, four-lane bridge less than a mile downriver and the conversion of the Stillwater Bridge to pedestrian and bicycle use. Originally, construction of this bridge was planned to start in 2024, but legislation was passed requiring the Department of Transportation to address aging bridges by 2018, and the start date was moved up to 2013. However, on March 11, 2010, a federal judge ruled that

72-495: A different context. The first appearances of gridlock in newspapers occurred during the 1980 New York City transit strike . The word is attributed to Sam Schwartz , who was then the chief traffic engineer for the New York City Department of Transportation at the time of the strike. Schwartz said the word gridlock was used internally in his department during the 1970s, perhaps as early as 1971. Writing up

96-427: A green light if there is no room for them to clear the intersection. If all drivers follow this rule, gridlock is impossible. Another type of gridlock can occur during traffic surges between highway on-ramps and off-ramps located within a quarter mile of each other. Traffic exiting the highway may back up and block the entering vehicles. Those entering vehicles in turn back up and block the exiting vehicles. Gridlock

120-434: A memo of emergency recommendations for senior officials, he recalled the words of a colleague several years earlier who had been analyzing a proposal to close Broadway to vehicular traffic. His colleague gave the plan the thumbs-down, worrying that it would simply "lock up the grid". Schwartz was always struck by that image and titled his 1980 memo "Gridlock Prevention Plan". In another interview Mr. Schwartz said that he coined

144-511: A moving violation that comes with a US$ 90.00 penalty. Mayor Michael Bloomberg , noting that the ten-minute ticketing process actually contributes to overall traffic congestion , has asked the New York State Legislature to remove "blocking the box" from the moving violation category. This reclassification would give more traffic agents authority to write tickets and change the current ticketing procedure, which requires that

168-487: A vertically lifting span 140 feet (43 m) long. It is 23 feet (7.0 m) wide, allowing one lane of traffic in each direction. The lifting span is a Waddell & Harrington type, one of six built in Minnesota and Wisconsin and one of three still remaining today. Built in 1931 to replace a swing bridge from 1910, it was the last bridge of this design to be built in the area. Minnesota and Wisconsin evenly split

192-415: Is a form of traffic congestion where continuous queues of vehicles block an entire network of intersecting streets, bringing traffic in all directions to a complete standstill. The term originates from a situation possible in a grid plan where intersections are blocked, preventing vehicles from either moving forwards through the intersection or backing up to an upstream intersection. The term gridlock

216-424: Is also used incorrectly to describe high traffic congestion with minimal flow (which is simply a traffic jam), where a blocked grid system is not involved. By extension, the term has been applied to situations in other fields where flow is stalled by excess demand, or in which competing interests prevent progress. Traditional gridlock is caused by cars entering an intersection on a green light without enough room on

240-533: Is different from Wikidata All article disambiguation pages All disambiguation pages Stillwater Bridge (St. Croix River) The bridge was listed on the National Register of Historic Places in 1989 for having state-level significance in the theme of engineering. It was nominated for being a rare surviving example of a vertical-lift highway bridge based on the designs pioneered by Waddell & Harrington . The Stillwater Lift Bridge

264-414: Is exacerbated by the presence of urban street canyons , which effectively trap air pollution and increase air pollution exposures of motorists as well as the general urban population. Noise pollution can be aggravated by excessive starting and stopping noise of gridlocked facilities. To make a traffic system less susceptible to gridlock, a traffic metering system can be introduced. These systems determine

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288-419: Is sometimes cited as an example of the prisoner's dilemma (from game theory ). Mutual cooperation among drivers would give the maximum benefit (prevention of gridlock), but this may not happen because of the desire to maximize one's own benefit (shortest travel time) given the uncertainty about the other drivers' commitment to equal cooperation. In New York City , drivers who " block the box " are subject to

312-482: The $ 460,174 cost of the bridge. Beginning August 1, 2005, the Minnesota Department of Transportation closed the bridge to perform substantial repairs at a cost of $ 5 million provided by Congress. The project included renovating the tender's house so that it would conform to modern safety standards while maintaining historical preservation. On November 11, 2005, the bridge re-opened to traffic after

336-408: The bridge deck had been replaced. In July 2008 a truck carrying lumber exceeded the height clearance of the bridge and struck its structure as it tried to cross. The bridge had to be closed for repairs, and reopened on August 2, 2008. In 2012 the bridge was closed again for a construction project to make more steel repairs. The St. Croix River Crossing Project of MnDOT called for the construction of

360-471: The crosswalk, and fuzzy grass. Everything on the model was labeled with both large text and Braille to enable people with low vision to understand the plans for the bridge. Because the bridge feeds directly into downtown Stillwater on the Minnesota side, gridlock often occurred and traffic could back up on Minnesota State Highway 36 for many miles, especially on weekends and during the summer. The effect

384-530: The government had violated its rules in approving the bridge design, which sent the process back to an earlier stage. In 2009 Minneapolis architectural model builder Feyereisen Studios completed a model of the Stillwater Lift Bridge. The idea to build a physical model of the Stillwater Lift Bridge was undertaken in an effort to enlist the assistance of the disabled community, so as to make it easier for everyone to visualize and clearly understand

408-549: The issuing officer physically stop the violating car in traffic. In Virginia Beach, Virginia , roads around the oceanfront feature signs at every intersection stating "Don't Block the Box", and threatening a $ 200 fine. In Austin, Texas , a "Don't Block the Box" initiative began in 2015. A similar program was piloted in San Antonio in 2017. The obvious effects are driver frustration and trip delay. Another effect in cities

432-569: The optimal number of vehicles allowed in a traffic system, and prevent any extra vehicles from entering. This can be done with traffic control devices, such as traffic lights or warning signs, or a better public transportation system. This type of system is used in Zurich, Switzerland . According to The New York Times , the word gridlock was coined in New York City in the early 1970s. The word appeared in an IEEE publication in 1971 in

456-422: The other side of the intersection at the time of entering to go all the way through. This can lead to the car being trapped in the intersection when the light turns green in the other direction. If the same situation occurs simultaneously in multiple intersections, these cars can be trapped in the intersections indefinitely. In many jurisdictions, drivers are therefore prohibited from entering an intersection at

480-443: The project. Unlike most architectural models, the model of the Stillwater Lift Bridge was designed so that the visually impaired could explore it by sense of touch. The architectural model builders enlisted the help of the visually impaired while creating the model, and utilized various unconventional materials, including magnets to make breakaway lamp posts, sandpaper to indicate detectable warnings, raised crosswalk markings to indicate

504-430: The same term [REDACTED] This disambiguation page lists articles associated with the title Stillwater Bridge . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Stillwater_Bridge&oldid=545872550 " Category : Disambiguation pages Hidden categories: Short description

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528-407: Was made worse whenever the bridge was raised. The bridge's mechanisms had remained essentially unaltered since its opening in 1931 and on occasion became stuck. In addition, the bridge had been deemed "structurally deficient" by inspectors, receiving a sufficiency rating of 32.8 on a 100-point scale, as of June 23, 2008. Because of the bridge's design, it was considered " fracture critical "; there

552-479: Was no built-in redundancy to prevent the entire structure from collapsing if one component fails. In comparison, the I-35W Mississippi River bridge , another fracture-critical bridge that collapsed on August 1, 2007, received a sufficiency rating of 50. The bridge had a height restriction of 13 feet 2 inches (4.01 m) and a weight restriction of 40 tons. Gridlock Gridlock

576-681: Was one of two bridges on the St. Croix River between the Interstate 94 bridge in Hudson, Wisconsin , and the U.S. Highway 8 bridge in Taylors Falls, Minnesota , providing a popular and useful alternative to those crossings. (The other bridge is the Highway 243 bridge at Osceola, Wisconsin .) The bridge consists of seven fixed steel truss spans 1,050 feet (320 m) long in total, including

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