"the area, the US 93 designation was carried on into Wickenburg. A new highway segment opened in October 2010 in the area of Hoover Dam; the Hoover Dam Bypass replaces a highway that had been closed to truck traffic due to security concerns over the dam since the September 11, 2001 attacks. The bypass crosses the Colorado River on a new bridge downstream of the dam. The new bypass will now make the truck detour through either Laughlin, Nevada, or Needles, California, unnecessary. US 93 (with US 60 to the southeast of Wickenburg) is currently the shortest and most direct"
"Mike O'Callaghan, Governor of Nevada from 1971–1979, and Pat Tillman, an American football player who left his career with the Arizona Cardinals to enlist in the United States Army and was later killed in Afghanistan by friendly fire. As early as the 1960s, officials identified the US 93 route over Hoover Dam to be dangerous and inadequate for projected traffic volumes. From 1998–2001, officials from Arizona, Nevada, and several federal government agencies collaborated to determine the best routing for an alternative river crossing. In March 2001, the Federal Highway Administration selected the route, which crosses the Colorado River approximately downstream"
"Route 163, the Colorado River crossing between Laughlin, Nevada and Bullhead City, Arizona, and Arizona State Route 68; the detour added to the normal journey on US 93. Project design was by the Hoover Support team, led by HDR, Inc. and including T.Y. Lin International, Sverdrup Civil, Inc., and other specialist contributors. The bridge has a length of and a span. The roadway is above the Colorado River and four lanes wide. This is the first concrete-and-steel composite arch bridge built in the United States. It includes the widest concrete arch in the Western Hemisphere and is also the second"
"Hoover Dam. All other sections of the original corridor are in Arizona, like the of US 93 which is now a four-lane route from Kingman to the Hoover Dam. However, some portions of that corridor in Arizona are not built to Interstate standards, as there are scattered at-grade intersections, substandard roadway and shoulder widths, median crossovers, and other deficiencies. Part of these dual roadways are repaved, re-striped sections of very old parts of US 93. Farther south, a direct system interchange with US 93 and I-40 is planned that will eliminate the bottleneck at Beale Street in western Kingman. The"
"Security Zone encompasses around Hoover Dam and Lake Mead; before the opening of the bypass, this included of U.S. Highway 93 (US 93). Vehicles had to pass through inspection checkpoints, located on US 93 north of the dam in Nevada, and south of the dam in Arizona, before crossing. With the opening of the bypass, traffic patterns changed dramatically. Through traffic no longer goes through a checkpoint on either side of the river. On the Nevada side, the dam road now branches off US 93 before the checkpoint, which remains in operation to screen dam visitors. On the Arizona side,"
"just downstream from Hoover Dam. US 93 continues into Nevada to the cities of Boulder City, Henderson and Las Vegas. The route between Kingman and Hoover Dam first became part of the state highway system in 1934 when it was designated as SR 69. At the time, Hoover Dam was still under construction and the highway did not link to Nevada. The dam was completed the following year in 1935 enabling traffic to cross over the top of the dam. In that year, US 466 was designated over SR 69 from Kingman to Hoover Dam. US 93 was extended south"
"11 project. Through traffic on US 93 combined with pedestrian and tourist traffic at Hoover Dam itself led to major traffic congestion on the dam and on the approaches to the dam. The approaches featured hairpin turns on both the Nevada and Arizona sides of the dam, and the terrain caused limited sight distances around curves. In addition to traffic safety considerations, officials were also concerned about the safety and security of Hoover Dam, specifically the impact a vehicle accident could have on the dam's operation and the waters of Lake Mead. Officials first discussed the need for a new"
"or doing nothing. In March 2001 the Federal Highway Administration issued a Record of Decision indicating its selection of the ""Sugarloaf Mountain Alternative"" routing. The project called for approximately of highway in Nevada, of highway in Arizona, and a bridge that would cross the river downstream (south) of Hoover Dam. Design work began in July 2001. Security measures implemented following the September 11 attacks prohibited commercial truck traffic from driving across Hoover Dam. Prior to the completion of the bridge, through commercial vehicles were required to follow a detour route between Boulder City and Kingman via US 95, Nevada State"
"Hoover Dam Hoover Dam is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Nevada and Arizona. It was constructed between 1931 and 1936 during the Great Depression and was dedicated on September 30, 1935, by President Franklin D. Roosevelt. Its construction was the result of a massive effort involving thousands of workers, and cost over one hundred lives. Originally known as Boulder Dam from 1933, it was officially renamed Hoover Dam, for President Herbert Hoover, by a joint resolution of Congress in 1947. Since about 1900, the Black"
"which was inadequate by modern standards, because there was one narrow lane in each direction, including several hairpin turns, many dangerous curves, and poor sight distances. Also, in the wake of the September 11, 2001 attacks, truck traffic over the Hoover Dam had been diverted south to a river crossing near Laughlin, Nevada, in an effort to safeguard the dam from hazardous spills or explosions. U.S. Route 93 in Arizona In the U.S. state of Arizona, U.S. Route 93 is a U.S. Highway that begins in Wickenburg and heads north to the Nevada border at the Mike O'Callaghan – Pat"
"referred to the dam as ""Boulder Dam"" or as ""Boulder Canyon Dam"", even though the proposed site had shifted to Black Canyon. The Boulder Canyon Project Act of 1928 (BCPA) never mentioned a proposed name or title for the dam. The BCPA merely allows the government to ""construct, operate, and maintain a dam and incidental works in the main stream of the Colorado River at Black Canyon or Boulder Canyon"". When Secretary Wilbur spoke at the ceremony starting the building of the railway between Las Vegas and the dam site on September 17, 1930, he named the dam ""Hoover Dam"","
"and was known for its dangerous curves and hills in the stretch between Wickenburg and I-40. In the late 1990s, ADOT began widening US 93 to four lanes, and in some areas building a completely new roadway. In other places along the route, ADOT simply repaved the old highway and built two new lanes parallel to it. ADOT also began studying the possibility of adding grade separations to US 93 near the Santa Maria River to make the road a full freeway. At the same time Nevada and Arizona began looking at US 93's crossing of Hoover Dam, a major"
"the southwest, while new ramps will maintain connectivity to the present alignment of US 93 west of this point. That road will be redesignated and signed as Business Route 93 from this interchange into and through Boulder City. Nevada State Route 172 State Route 172 (SR 172) is a state highway in Clark County, Nevada. The route provides access to Hoover Dam from Interstate 11 (I-11)/U.S. Route 93 (US 93). State Route 172 begins on Gold Strike Canyon Road, at an interchange with I-11/US 93 approximately northeast of downtown Boulder City. Proceeding northward for only a few feet, it turns"
"bridge in 2013. U.S. Route 9 Alternate was a long alternate route of US 9 that ran through Toms River, New Jersey. It was created in 1954 after US 9 was rerouted to use the Garden State Parkway through the Toms River area but was later renumbered to Route 166. U.S. Route 1/9 Business was a long former business route of US 1/9 in Jersey City that ran between US 1/9 at the Tonnele Circle and the Holland Tunnel across the Hudson River to New York City. The route was created in 1953, replacing what had been a part of"
"93 continues south of Hoover Dam over the new Mike O'Callaghan – Pat Tillman Memorial Bridge towards Phoenix, Arizona and the Arizona Sun Corridor. US 95 connects the city to northwestern Nevada, including Carson City and Reno. US 93 splits from I-15 northeast of Las Vegas and goes north through the eastern part of the state, serving Ely and Wells, and US 95 heads south from US 93 near Henderson through far eastern California. A three-quarters beltway has been built, consisting of Interstate 215 on the south and Clark County 215 on the west and north. Other radial routes include"
"completion. But by the time this new route opened, it had been signed as mainline US 93, with the old, winding route of US 93 on the Nevada Highway (original SR 26) through town being changed to SR 500. This state highway designation was later dropped and that roadway is now maintained by Boulder City as ""Nevada Way"". The western end of this 1982 bypass was also later realigned from Colorado Street south to intersect directly at Buchanan Boulevard (in place of a wye intersection with Nevada Way a block to the east at Joshua Street), by using a small"
"of less than 9,000 at the 1930 U.S. Census (compared to an estimated 2 million in 2013). Development in and around Las Vegas in the latter half of the 20th century made Las Vegas and its surrounding area a tourist attraction, and US 93 became an important transportation corridor for passenger and commercial traffic between Las Vegas and Phoenix. In 1995, the portion of US 93 over Hoover Dam was included as part of the CANAMEX Corridor, a high-priority transportation corridor established under the North American Free Trade Agreement (NAFTA). This bridge is a key component of the proposed Interstate"
"Interstate 11 Interstate 11 (I-11) is a north-south Interstate Highway (running predominately northwest-southeast) in the U.S. state of Nevada that currently follows U.S. Route 93 (US 93) and U.S. Route 95 (US 95) between Hoover Dam and Henderson. It is tentatively planned to run from Nogales, Arizona, to Reno, Nevada, along the current routes of I-19, I-10, US 93 and US 95. The bulk of the route is still in the early discussion and planning stages. Except for the portion between Wickenburg, Arizona to Hoover Dam, which will run on an upgraded US 93 (including its concurrency with I-40), an"
"northwest of Wickenburg in Yavapai County. The highway would then run concurrently with US 93 through northern Arizona, including a concurrency with I-40 in and near Kingman. The highway would then cross the Mike O'Callaghan-Pat Tillman Memorial Bridge into Nevada. In Nevada, the highway begins at the Arizona state line on the Hoover Dam Bypass, then runs along the new Boulder City Bypass around Boulder City, which was officially opened on August 9, 2018. It is signed concurrently with US 93 throughout. At mile 14, I-11 intersects with US 95 and picks up that designation as well heading north. The"
"a new vehicular bridge was planned downstream (to the northeast), tentatively referred to as the ""Nineteen and A-Half Street Bridge""; it was built in 1992. Aside from serving as a pedestrian bridge, the structure has hosted the annual ""Gala on the Bridge"", a fundraiser for The Greenway Foundation. It began in 2011, and was described in ""The Denver Post"" as the ""first time the bridge has been used for anything other than a way for people to cross the South Platte River"". In the state of Colorado, at the time of its NRHP nomination, the 19th Street Bridge was described"
"was featured in episode 5x02 of the TV series ""Extreme Engineering"". The filming of this episode took place before the start of work on the arch. When the bridge opened to traffic, the roadway over Hoover Dam was closed to through traffic, and all visitor access to the dam was routed to the Nevada side; vehicles are still allowed to drive across the dam to the Arizona side following a security inspection, but must return to the Nevada side to return to US 93. The former US 93 route between the dam and its junction with the present US 93"
"after the Royal Gorge Bridge, and is the world's highest concrete arch bridge. Upon the completion of the Boulder City Bypass, the bridge has become a part of Interstate 11, concurrent with US 93. In 1935, the American Association of State Highway Officials (AASHO, later AASHTO) authorized a southward extension of U.S. Route 93 from its previous southern terminus in Glendale, Nevada to Kingman, Arizona by way of Las Vegas and Boulder City, crossing the Colorado River on the newly constructed Hoover Dam (also known then as Boulder Dam). Clark County was sparsely populated at the time, with a population"
"Lower Mountain Road portion of NY 93's former routing is now maintained by Niagara County as County Route 902 (CR 902). The Lockport Bypass, a highway bypassing downtown Lockport to the southwest, was opened to traffic on July 26, 1991. The highway cost $7.7 million (equivalent to $ in 2019) to construct and extended from the junction of NY 31 and NY 93 west of the city to Robinson Road south of downtown. NY 93 was realigned to follow the new bypass south to Robinson Road, where it turned east and followed Robinson Road (CR 123) and Dysinger Road (CR"
"on the Nevada side, but it does not extend to the Arizona side on the east. Instead, there is an inlet formed by earth and concrete, that includes the spillway. The hydroelectric power plant is beside the inlet. The dam's purpose is to re-regulate releases from Hoover Dam upstream, and facilitate the delivery of Colorado River water to Mexico. Bullhead City, Arizona, and Laughlin, Nevada, are located just below the dam along the river. Davis Camp is also nearby. Bullhead City was originally a construction town for workers building the dam. A road is located on the crest of the"
"93 occurred in 1967, when a new highway connection was completed between US 91 (now I-15) and a point northwest of Glendale. The new alignment was oriented more north–south, shortening the distance between the Las Vegas area and Caliente by . The old section of US 93 northwest of Glendale paralleling the Muddy River remained as State Route 7, and was renumbered in 1976 to State Route 168. In 1982, a ""truck bypass"" along the upper reaches of Hemenway Wash, to skirt the central portion of Boulder City and allow a straighter, more steady climb for commercial vehicles, was nearing"
"North Las Vegas, then following the beltway west to an intersection with US 95 and finally running northwest concurrently with US 95 to SR 157. Under the original proposal, all three alternatives would have had the highway's northern terminus be at or near the junction of US 95 and SR 157. However, in 2015 Congress extended the freeway's corridor designation north up to I-80 in or northeast of Reno, generally following the existing route of US 95 for the majority of that path. As recently as 1997, US 93 was mostly a two-lane road between Wickenburg and the Hoover Dam,"
"of the intersection between US 9/DE 404 and DE 1D/DE 23. This project is currently in the design phase with construction planned to begin in 2024. Between 1958 and 1971, studies were conducted for a bypass of the segment of US 13 through Dover along with a connector between Dover and Frederica. The proposed routing began at US 113 and DE 12 north of Frederica and continued northwest to Woodside, where it was planned to cross US 13. From here, the bypass was to run to the west of Dover and head north to its terminus at US 13 north"
"new bridge. Additional studies began in 2007 to determine which of the options for replacement would work best for fixing traffic issues across the river. Options now included adding a bypass north to connect with Oregon Route 99W. By May 2009, ODOT had two proposals, one of which would not build a new bridge near the existing span. Both options included adding a northern bypass that would connect to U.S. Route 20 and Oregon 99W. As of 2015 the plans for a new bridge had been set aside, with improvements to the south bypass and downtown exits for OR 34,"
"Hite Crossing Bridge The Hite Crossing Bridge is an arch bridge that carries Utah State Route 95 across the Colorado River northwest of Blanding, Utah, United States. The bridge informally marks the upstream limit of Lake Powell and the end of Cataract Canyon of the Colorado River, but when the lake is at normal water elevation, the water can back up over upstream into Cataract Canyon. The bridge is the only automobile bridge spanning the Colorado River between the Glen Canyon Bridge, downstream near the Glen Canyon Dam and the U.S. Route 191 bridge upstream near Moab. The bridge is"
"long, carries traffic over three northbound lanes and three southbound lanes. It was added to the National Register of Historic Places in 1982, as the ""Portland–Vancouver Highway Bridge"". Since 2005, proposals for replacing the bridge have been produced and debated. The bridge is considered responsible for traffic congestion of road vehicles and river traffic. Plans for a replacement bridge, known as the Columbia River Crossing (CRC) project, estimated to cost at least $3.4 billion, had come together by 2012 after many delays, but were very controversial, with both strong support and strong opposition. In late June 2013, the CRC project"
"trucks and recreational vehicles traveling between Arizona and Las Vegas, Nevada via US 93, due to the heavy vehicle restrictions over Hoover Dam. The detour was temporary and was removed in 2010, when the new bypass was completed south of the dam . SR 68 was a 2 lane highway and had a high grade going through the Black Mountains. The highway was expanded to 4 lanes in the mid-1990s and now has a smoother ride through the mountains. Arizona State Route 68 State Route 68, also known as SR 68, is an east–west highway in northwestern Arizona running from"
"highway exits Idaho at Lost Trail Pass (web-cam) at and enters Montana toward the Bitterroot Valley. West of the highway at the pass is the Lost Trail Powder Mountain ski area, with terrain in both states. US 93 was established in 1926, initially using the modern-day route of SH-75 between Shoshone and Challis. The highway was re-aligned to its modern route via Arco in 1977, replacing an alternative route. In 2010, the Pole Line Road bypass around Twin Falls opened to traffic. US 93 was re-routed to the new bypass, while the old route was signed as US 93 Business."
"at a cost of approximately US$3 million. The bridge was dedicated on June 3, 1966. Hite Crossing Bridge The Hite Crossing Bridge is an arch bridge that carries Utah State Route 95 across the Colorado River northwest of Blanding, Utah, United States. The bridge informally marks the upstream limit of Lake Powell and the end of Cataract Canyon of the Colorado River, but when the lake is at normal water elevation, the water can back up over upstream into Cataract Canyon. The bridge is the only automobile bridge spanning the Colorado River between the Glen Canyon Bridge, downstream near the"