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Hardy Bridge
Hardy Bridge is a Warren through truss, three-span, two-lane bridge in the western United States. It crosses the Missouri River and is located at milepost 6 on Old U.S. Route 91, about southwest of Cascade, Montana, which is southwest of Great Falls. Constructed in 1931, it was one of many similar bridges built during a great expansion of bridges and roadways in the state of Montana. It was added to the National Register of Historic Places on January 4, 2010. Hardy Bridge is named for the unincorporated small community of Hardy, which is about downstream from the bridge below the Pine Island Rapids. The bridge is located on a northwest-southeast axis in the Adel Mountains Volcanic Field, a spectacularly eroded 75-million-year-old volcanic field; the approximate elevation of the river is above sea level. Description The toll-free bridge is long and is wide. Two lanes of traffic (with a curb but no shoulder) are carried by the bridge. The two longest of its three ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
I-beam
An I-beam, also known as H-beam (for universal column, UC), w-beam (for "wide flange"), universal beam (UB), rolled steel joist (RSJ), or double-T (especially in Polish language, Polish, Bulgarian language, Bulgarian, Spanish language, Spanish, Italian language, Italian and German language, German), is a beam (structure), beam with an or -shaped cross section (geometry), cross-section. The horizontal elements of the are flanges, and the vertical element is the "web". I-beams are usually made of structural steel and are used in construction and civil engineering. The web resists shear forces, while the flanges resist most of the bending moment experienced by the beam. The Euler–Bernoulli beam equation shows that the I-shaped section is a very efficient form for carrying both bending and shearing (physics), shear loads in the plane of the web. On the other hand, the cross-section has a reduced capacity in the transverse direction, and is also inefficient in carrying torsion ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montana Highway 200
Montana Highway 200 (MT 200) in the U.S. state of Montana is a route running east–west covering the entire state of Montana. From the starting point at ID 200, near Heron, the highway runs east to ND 200 near Fairview. It is part of a chain of state highways numbered 200 that extend from Idaho across Montana, North Dakota, and Minnesota, totaling approximately long. At , Montana Highway 200 is also the longest route signed as a state highway in the United States. Highway 200 helps to connect many small towns located in central Montana and the vast plains area of eastern Montana, to larger western Montana cities such as Great Falls and Missoula. Route description At its western end at the Idaho state line, MT 200 follows the Clark Fork River at the feet of the Cabinet Mountains eastward for until it meets the Flathead River at MT 135. It then follows the Flathead River east for to Dixon where the Flathead River turns north. MT 200 continues east ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sun River
The Sun River (also called the Medicine River) is a tributary of the Missouri River in the Great Plains, approximately 130 mi (209 km) long, in Montana in the United States. It rises in the Rocky Mountains in two forks, the North Fork and South Fork, which join in the Flathead National Forest above Gibson Reservoir along the county line between Teton and Lewis and Clark counties. It flows E, SE, and E away from the mountains, past Simms, Sun River, and Vaughn and joins the Missouri at Great Falls. The water of the river is used extensively for irrigation, through the Sun River Project of the United States Bureau of Reclamation. The irrigation area covers approximately 92,000 acres (372 km2). The North Fork of the Sun River begins high up in the Bob Marshall Wilderness and flows generally Southward for about until it meets up with the South Fork of the Sun River. Almost immediately the two forks flow into Gibson Reservoir, impounded by Gibson Dam. From wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hauser Dam
Hauser Dam (also known as Hauser Lake Dam) is a hydroelectric straight gravity dam on the Missouri River about northeast of Helena, Montana, in the United States. The original dam, built between 1905 and 1907, failed in 1908 and caused severe flooding and damage downstream. A second dam was built on the site in 1908 and opened in 1911 and comprises the present structure. The current Hauser Dam is long and high.''Upper Missouri River Reservoir Fisheries Management Plan, 2010–2019'', Montana Department of Fish, Wildlife and Parks, May 13, 2010, p. 11. The reservoir formed by the dam, Hauser Lake (also known as Hauser Reservoir), is long, has a surface area of , and has a storage capacity of of water when full.''Upper Missouri River Reservoir Fisheries Management Plan, 2010–2019'', Montana Department of Fish, Wildlife and Parks, May 13, 2010, pp. 7, 9. The dam is a "run-of-the-river" dam because it can generate electricity without needing to store additional water supplies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Helena
Lake Helena is a body of water along Prickly Pear Creek in the Helena Valley of Lewis and Clark County in southwestern Montana Montana () is a state in the Mountain West division of the Western United States. It is bordered by Idaho to the west, North Dakota and South Dakota to the east, Wyoming to the south, and the Canadian provinces of Alberta, British Columbi .... It is in size and is above sea level. History Completion of Hauser Dam on the Missouri River in 1907 created Hauser Lake. In addition, it created an arm of the lake, flooding of Prickly Pear Creek and surrounding wetlands to form Lake Helena. In 1945, a causeway was built to separate the lake from the flooded canyon portion of the old Prickly Pear Creek. The causeway replaced a 1904 combination steel and wood bridge. The steel span was 120' long, and the overall length of the bridge was 520'. The concrete piers of the steel bridge, which was sold for scrap and dismantled in 1952, can still be seen ju ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mullan Pass
Mullan Pass is a mountain pass in the western United States, in the Rocky Mountains of Montana. It sits on the Continental Divide on the border between Powell and Lewis and Clark counties at 5,902 feet (1,799 m) above sea level. Located in the Helena National Forest, the pass is thirteen miles (20 km) west of the city of Helena. The Northern Pacific Railway (NP) used the pass for its line from Logan to Garrison via Helena, built in 1883. This line was the NP's primary freight route and was also used by their secondary passenger train, the '' Mainstreeter''. The NP also built an alternate line over Homestake Pass, which was used by their primary passenger train, the ''North Coast Limited''. The rail line at Mullan Pass is currently operated by Montana Rail Link; it crosses under the pass and the continental divide at via the Mullan Tunnel. The pass was named after Lieutenant John Mullan, the U.S. Army engineer who first crossed the pass on March 22, 1854, and lat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Big Belt Mountains
The Big Belt Mountains are a section of the Rocky Mountains in the U.S. state of Montana. Situated mainly in the Helena National Forest, the mountains are used for logging and recreation for the surrounding residents. Nearby are the cities of Helena, Townsend, and White Sulphur Springs, as well as Canyon Ferry Lake and the Missouri River. The highest point in the Big Belt Range is Mount Edith at , while the center of the range is . The Big Belts lie primarily between the Missouri River drainage to the west and the Smith River drainage to the east. They are traversed by U.S. Highway 12 between Townsend in the Missouri drainage, and White Sulphur Springs in the upper Smith River drainage. The gulches on the western slopes of the Big Belts were noted historically for rich gold placer strikes. The richest were the 1864 and 1865 placer gold strikes in Confederate Gulch, including Montana Bar, which was one of the most concentrated gold placer strikes ever made. The range ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington (state)
Washington (), officially the State of Washington, is a state in the Pacific Northwest region of the Western United States. Named for George Washington—the first U.S. president—the state was formed from the western part of the Washington Territory, which was ceded by the British Empire in 1846, by the Oregon Treaty in the settlement of the Oregon boundary dispute. The state is bordered on the west by the Pacific Ocean, Oregon to the south, Idaho to the east, and the Canadian province of British Columbia to the north. It was admitted to the Union as the 42nd state in 1889. Olympia is the state capital; the state's largest city is Seattle. Washington is often referred to as Washington state to distinguish it from the nation's capital, Washington, D.C. Washington is the 18th-largest state, with an area of , and the 13th-most populous state, with more than 7.7 million people. The majority of Washington's residents live in the Seattle metropolitan area, the center of trans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort Walla Walla
Fort Walla Walla is a United States Army fort located in Walla Walla, Washington. The first Fort Walla Walla was established July 1856, by Lieutenant Colonel Edward Steptoe, 9th Infantry Regiment. A second Fort Walla Walla was occupied September 23, 1856.Whitman Mission US National Historic Site page The Many Fort Walla Wallas, http://www.nps.gov/whmi/historyculture/the-many-fort-walla-wallas.htm, viewed on September 15, 2014. The third and permanent military Fort Walla Walla was built in 1858 and adjoined Steptoeville, now Walla Walla, Washington, a community that had grown up around the second fort. An Executive Order on May 7, 1859 declared the fort a military reservation containing 640 acres devoted to military purposes and a further 640 acres each of hay and timber reserves. On September 28, 1910 soldiers from the 1st Cavalry lowered the flag closing the fort. In 1917, the fort briefly reopened to train men of the First Battalion Washington Field Artillery in support of ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort Benton, Montana
Fort Benton is a city in and the county seat of Chouteau County, Montana, United States. Established in 1846, Fort Benton is the oldest continuously occupied settlement in Montana. The city's waterfront area, the most important aspect of its 19th century growth, was designated the Fort Benton Historic District, a National Historic Landmark, in 1961. The population was 1,449 at the 2020 census. History Established in 1846 by Alexander Culbertson, who worked for Auguste Chouteau and Pierre Chouteau, Jr. of St. Louis, the original fort was the last fur trading post on the Upper Missouri River, Chouteau County Courthouse, 2009 the fort became an important economic center. For 30 years, the port attracted steamboats carrying goods, merchants, gold miners and settlers, coming from New Orleans, Memphis, St. Louis, Hannibal, Bismarck, Kansas City, etc. As the terminus for the 642-mile-long Mullan Road, completed by the United States Army in 1860, and at the head of navigation of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mullan Road
Mullan Road was the first wagon road to cross the Rocky Mountains to the Inland of the Pacific Northwest. It was built by U.S. Army troops under the command of Lt. John Mullan, between the spring of 1859 and summer 1860. It led from Fort Benton, which at the time was in the Dakota Territory, then Idaho Territory from July 1863, and Montana Territory beginning in May 1864, and the navigational head of the Missouri River (and once farthest inland port in the world). The road connected to Fort Walla Walla, Washington Territory, near the Columbia River. The road previewed the route approximately followed of modern-day Interstate 15 and Interstate 90 through present-day Montana, Idaho, and Washington. Parts of the Mullan Road can still be traveled; one such section is near Washtucna, Washington. A segment of the Mullan Road in the vicinity of Benton Lake was listed on the National Register of Historic Places in 1975, and the American Society of Civil Engineers designated it a Nation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
