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Dearborn River High Bridge
The Dearborn River High Bridge is a Pratt half-deck truss bridge built in 1897, and has been placed on the National Register of Historic Places as it is one of the few bridges of its type left standing in the United States. On a half-deck bridge, the deck is attached in the center rather than, as is more common, top or bottom of the superstructure. It crosses the Dearborn River on Lake Bean Road (Montana Secondary 435) about southwest of Augusta, Montana. The unusual design of the Dearborn River High Bridge suits it to carry light loads across high/deep crossings. It has four spans and a wooden plank deck. It is the last standing pin-connected Pratt half-deck truss bridge left in the United States. Construction cost was $9,997. Construction began in 1896 and completed in 1897. This crossing point on the Dearborn River had been used for many years by the local Indian tribes, primarily the Blackfeet. Prior to the bridge's construction this location was known as the Ponderay Cros ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dearborn River
The Dearborn River is a tributary of the Missouri River, approximately 70 mi (113 km) long, in central Montana in the United States. It rises in the Lewis and Clark National Forest, near Scapegoat Mountain in the Lewis and Clark Range of the Rocky Mountains at the continental divide, in western Lewis and Clark County. It flows generally southeast through secluded canyons, and joins the Missouri near Craig. It is crossed by the Dearborn River High Bridge, which was constructed in 1897. It is a popular destination for whitewater rafting and fly fishing. Whirling disease has become a significant problem among trout in the river. The Dearborn is a Class I river for stream access for recreational purposes from the highway 431 bridge to its confluence with the Missouri river.Stream Access in Montana ...
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Lewis And Clark County, Montana
Lewis and Clark County is a county located in the U.S. state of Montana. As of the 2020 census, the population was 70,973. Its county seat is Helena, the state capital. The numerical designation for Lewis and Clark County (used in the issuance of the state's license plates) is 5. The county was established on June 2, 1865, as one of the nine original counties of the Territory of Montana named Edgerton County in honor of Sidney Edgerton, first Governor of the Territory of Montana, and was renamed Lewis and Clark County on March 1, 1868, in honor of explorers Meriwether Lewis and William Clark. Lewis and Clark County is part of the Helena, Montana Micropolitan Statistical Area. Geography According to the United States Census Bureau, the county has a total area of , of which is land and (1.1%) is water. Major highways * * * * * * * * Adjacent counties * Teton County - north * Cascade County - east * Meagher County - east * Broadwater County - southeast * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Bridges Documented By The Historic American Engineering Record In Montana ...
__NOTOC__ This is a list of bridges documented by the Historic American Engineering Record in the US state of Montana. Bridges References {{HAER list, structure=bridge *List *List Montana Bridges, HAER Bridges, HAER Bridges A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or railway) without blocking the path underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually somet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pratt Truss Bridges In The United States
Pratt is an English surname. Notable people with the surname include: A–F * Abner Pratt (1801–1863), American diplomat, jurist, politician, and lawyer *Al Pratt (baseball) (1847–1937), American baseball player * Andy Pratt (baseball) (born 1979), American baseball player *Andy Pratt (singer-songwriter) (born 1947), American singer-songwriter and musician *Ann Pratt (born c. 1830), Jamaican author about Kingston Lunatic Asylum *Antwerp Edgar Pratt (1852–1924), British naturalist, explorer, collector of plants and animals *Awadagin Pratt (born 1966), American concert pianist *Babe Pratt (Walter Peter Pratt, 1916–1988), Canadian ice hockey player * Betty Rosenquest Pratt, (1925–2016), American tennis player *Bob Pratt (1912–2001), Australian rules footballer * Caleb S. Pratt (1832–1861), Union Army officer * Calvin Edward Pratt (1828–1896), Union Army officer *Charles Pratt, 1st Earl Camden (1713–1794), British lawyer *Charles Pratt (1830–1891), American busine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steel Bridges In The United States
Steel is an alloy of iron and carbon that demonstrates improved mechanical properties compared to the pure form of iron. Due to steel's high elastic modulus, yield strength, fracture strength and low raw material cost, steel is one of the most commonly manufactured materials in the world. Steel is used in structures (as concrete reinforcing rods), in bridges, infrastructure, tools, ships, trains, cars, bicycles, machines, electrical appliances, furniture, and weapons. Iron is always the main element in steel, but other elements are used to produce various grades of steel demonstrating altered material, mechanical, and microstructural properties. Stainless steels, for example, typically contain 18% chromium and exhibit improved corrosion and oxidation resistance versus its carbon steel counterpart. Under atmospheric pressures, steels generally take on two crystalline forms: body-centered cubic and face-centered cubic, however depending on the thermal history and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places In Lewis And Clark County, Montana
This is a list of the National Register of Historic Places listings in Lewis and Clark County, Montana. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Lewis and Clark County, Montana, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in a map. There are 80 properties and districts listed on the National Register in the county. Current listings See also * List of National Historic Landmarks in Montana * National Register of Historic Places listings in Montana References {{Lewis and Clark County, Montana Lewis and Clark Lewis may refer to: Names * Lewis (given name), including a list of people with the given name * Lewis (surname), including a list of people with the surname Music * Lewis (musician), Canadi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Historic American Engineering Record In Montana
History is the systematic study of the past, focusing primarily on the human past. As an academic discipline, it analyses and interprets evidence to construct narratives about what happened and explain why it happened. Some theorists categorize history as a social science, while others see it as part of the humanities or consider it a hybrid discipline. Similar debates surround the purpose of history—for example, whether its main aim is theoretical, to uncover the truth, or practical, to learn lessons from the past. In a more general sense, the term ''history'' refers not to an academic field but to the past itself, times in the past, or to individual texts about the past. Historical research relies on primary and secondary sources to reconstruct past events and validate interpretations. Source criticism is used to evaluate these sources, assessing their authenticity, content, and reliability. Historians strive to integrate the perspectives of several sources to develop a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Road Bridges On The National Register Of Historic Places In Montana
A road is a thoroughfare used primarily for movement of traffic. Roads differ from streets, whose primary use is local access. They also differ from stroads, which combine the features of streets and roads. Most modern roads are Road surface, paved. The words "road" and "street" are commonly considered to be interchangeable, but the distinction is important in urban design. There are road hierarchy, many types of roads, including parkways, avenue (landscape), avenues, controlled-access highways (freeways, motorways, and expressways), tollways, interstates, highways, and local roads. The primary features of roads include lanes, sidewalks (pavement), roadways (carriageways), median strip, medians, shoulder (road), shoulders, road verge, verges, bike paths (cycle paths), and shared-use paths. Definitions Historically, many roads were simply recognizable routes without any formal construction or some maintenance. The Organisation for Economic Co-operation and Development, Organi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges Completed In 1897
A bridge is a structure built to Span (engineering), span a physical obstacle (such as a body of water, valley, road, or railway) without blocking the path underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge, dating from the 13th century BC, in the Peloponnese is one of the oldest arch bridges in existence and use. Etymology The ''Oxford English Dictionary'' traces the origin of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places Listings In Lewis And Clark County, Montana
This is a list of the National Register of Historic Places listings in Lewis and Clark County, Montana. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Lewis and Clark County, Montana, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in a map. There are 80 properties and districts listed on the National Register in the county. Current listings See also * List of National Historic Landmarks in Montana * National Register of Historic Places listings in Montana References {{Lewis and Clark County, Montana Lewis and Clark Lewis may refer to: Names * Lewis (given name), including a list of people with the given name * Lewis (surname), including a list of people with the surname Music * Lewis (musician), Canadi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montana Department Of Transportation
The Montana Department of Transportation (MDT) is a governmental agency in the U.S. state of Montana, responsible for numerous programs related to the construction, maintenance, and monitoring of Montana's transportation infrastructure and operations. While most of MDT's programs relate to the state's highway network, Montana's railroads and airports are also under the agency's purview. Responsibilities The responsibilities of the department include: *Designing and constructing roads and bridges *Maintaining roads, bridges, and rest areas *Collecting and enforcing fuel taxes *Enforcing safety, size, and weight laws for commercial vehicles *Managing the state motor pool *Designing and testing materials *Acquiring property *Enforcing Outdoor Advertising Control Act *Planning public transport and rail programs *Planning general aviation airports *Performing air search and rescue *Performing snow removal on roads History In March 1913, a state Highway Commission was created by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Falls, Montana
Great Falls is the List of cities and towns in Montana, third most populous city in the U.S. state of Montana and the county seat of Cascade County, Montana, Cascade County. The population was 60,442 according to the 2020 United States census, 2020 census. The city covers an area of and is the principal city of the Great Falls, Montana, Metropolitan Statistical Area, which encompasses all of Cascade County. The Great Falls MSA's population was 84,414 according to the 2020 census. A cultural, commercial and financial center in the central part of the state, Great Falls is located just east of the Rocky Mountains and is bisected by the Missouri River. It is from the eastern entrance to Glacier National Park (U.S.), Glacier National Park in northern Montana, and from Yellowstone National Park in southern Montana and northern Wyoming. A north–south federal highway, Interstate 15 in Montana, Interstate 15, serves the city. Great Falls is named for a Great Falls (Missouri River) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
