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Chain Lakes Bridge
The Chain Lakes Bridge is a historic structure located southeast of Palo, Iowa, United States. It carries a pedestrian trail for over the Cedar River. with The Linn County Board of Supervisors began planning for this span in the early 1880s. They appropriated $20,000 for this two-span Pratt through truss The Wrought Iron Bridge Company of Canton, Ohio, which built bridges in the county since 1879, completed this structure in 1884. The bridge was listed on the National Register of Historic Places in 1998. While it was built to carry vehicular traffic, it is now in a nature preserve maintained by the Linn County Conservation Board. See also * * * * * List of bridges on the National Register of Historic Places in Iowa * National Register of Historic Places listings in Linn County, Iowa This is a list of the National Register of Historic Places listings in Linn County, Iowa. This is intended to be a complete list of the properties and districts on the National Register of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cedar River (Iowa River)
The Cedar River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed May 13, 2011 river in Minnesota and Iowa. It is a tributary of the Iowa River, which flows to the Mississippi River. The Cedar River takes its name from the red cedar (''Juniperus virginiana'') trees growing there, and was originally called the Red Cedar River by the Meskwaki. The first Mississippi steamboat reached Cedar Rapids, Iowa in 1844, and during the next decade, the Red Cedar (as it was still called) was an important commercial waterway. The surrounding region is known officially as the Cedar River Valley, though it is more commonly referred to simply as the Cedar Valley. The stream is young geologically, and only in places where the glacial material has been removed is the underlying bedrock exposed. Geography The headwaters of the Cedar River are located in Dodge County, Minnesota, consisting of a west fork and middle fork approximately ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palo, Iowa
Palo is a city in Linn County, Iowa, United States. The population was 1,407 at the time of the 2020 census. It is part of the Cedar Rapids Metropolitan Statistical Area. Palo is located near Pleasant Creek State Recreation Park. History In 1849 a regional post office was named by Marion resident Dr. Bardwell, shortly after the Battle of Palo Alto in the Mexican-American War. Dr. Bardwell, used the short name Palo. The town was surveyed in 1854 and the first building in Palo was built in the same year and the town took its name from the local post office. Floods of 2008 Palo suffered severe damage during the 2008 flood. Approximately 980 residents, the entirety of the town, were ordered to abandon their homes and businesses. The mandatory evacuation was ordered by the Linn County Emergency Management department, due to flooding from the Cedar River. Geography Palo is located at (42.062201, -91.793126). According to the United States Census Bureau, the city has a total a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wrought Iron Bridge Company
The Wrought Iron Bridge Company was a bridge fabrication and construction company based in Canton, Ohio, United States. It specialized in the fabrication of iron truss bridges and was a prolific bridge builder in the late 19th century. It was one of the 28 firms consolidated by J. P. Morgan into the American Bridge Company in 1900. Many of its bridges have been listed on the National Register of Historic Places. Products The Wrought Iron Bridge Company specialized in relatively short-span iron truss bridges. Most were built for highway use, as the railroads were all privately owned at the time and employed their own engineers. The company supplied a catalog of bridge designs and mass-produced the parts to build these designs. Once a bridge was ordered, the pieces were shipped by train to the nearest station. Thus, local contractors were able to assemble a bridge very quickly, much like a model. 1882 pamphlet An illustrated pamphlet, dated 1882, is availablonline In this pamphle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pratt Through Truss
A truss bridge is a bridge whose load-bearing superstructure is composed of a truss, a structure of connected elements, usually forming triangular units. The connected elements (typically straight) may be stressed from tension, compression, or sometimes both in response to dynamic loads. The basic types of truss bridges shown in this article have simple designs which could be easily analyzed by 19th and early 20th-century engineers. A truss bridge is economical to construct because it uses materials efficiently. Design The nature of a truss allows the analysis of its structure using a few assumptions and the application of Newton's laws of motion according to the branch of physics known as statics. For purposes of analysis, trusses are assumed to be pin jointed where the straight components meet, meaning that taken alone, every joint on the structure is functionally considered to be a flexible joint as opposed to a rigid joint with strength to maintain its own shape, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Park Service
The National Park Service (NPS) is an agency of the United States federal government within the U.S. Department of the Interior that manages all national parks, most national monuments, and other natural, historical, and recreational properties with various title designations. The U.S. Congress created the agency on August 25, 1916, through the National Park Service Organic Act. It is headquartered in Washington, D.C., within the main headquarters of the Department of the Interior. The NPS employs approximately 20,000 people in 423 individual units covering over 85 million acres in all 50 states, the District of Columbia, and US territories. As of 2019, they had more than 279,000 volunteers. The agency is charged with a dual role of preserving the ecological and historical integrity of the places entrusted to its management while also making them available and accessible for public use and enjoyment. History Yellowstone National Park was created as the first national par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linn County, Iowa
Linn County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 230,299, making it the second-most populous county in Iowa. The county seat is Cedar Rapids. Linn County is named in honor of Senator Lewis F. Linn of Missouri. Linn County is included in the Cedar Rapids, IA Metropolitan Statistical Area. History The earliest inhabitants of Linn County, prior to Anglo settlement, were the Sac and Fox tribes. Relations were described by 20th century historians as amicable. Native Americans provided food and furs to whites in exchange for merchandise. Linn County was created as a named but unorganized area on December 21, 1837, as a part of Wisconsin Territory. It became part of Iowa Territory on July 4, 1838, when the territory was organized. Linn County was organized by the first legislative assembly of the Iowa Territory on January 15, 1839. A site was selected for its first county seat along Indian Creek, and was named Marion, after the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canton, Ohio
Canton () is a city in and the county seat of Stark County, Ohio. It is located approximately south of Cleveland and south of Akron in Northeast Ohio. The city lies on the edge of Ohio's extensive Amish country, particularly in Holmes and Wayne counties to the city's west and southwest. As of the 2020 Census, the population of Canton was 70,872, making Canton eighth among Ohio cities in population. It is the largest municipality in the Canton–Massillon metropolitan area, which includes all of Stark and Carroll counties, and was home to 401,574 residents in 2020. Founded in 1805 alongside the Middle and West Branches of Nimishillen Creek, Canton became a heavy manufacturing center because of its numerous railroad lines. However, its status in that regard began to decline during the late 20th century, as shifts in the manufacturing industry led to the relocation or downsizing of many factories and workers. After this decline, the city's industry diversified into the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places
The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic value". A property listed in the National Register, or located within a National Register Historic District, may qualify for tax incentives derived from the total value of expenses incurred in preserving the property. The passage of the National Historic Preservation Act (NHPA) in 1966 established the National Register and the process for adding properties to it. Of the more than one and a half million properties on the National Register, 95,000 are listed individually. The remainder are contributing resources within historic districts. For most of its history, the National Register has been administered by the National Park Service (NPS), an agency within the U.S. Department of the Interior. Its goals are to help property owners and inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Bridges On The National Register Of Historic Places In Iowa
This is a list of bridges and tunnels on the National Register of Historic Places in the U.S. state of Iowa. References {{NRHP bridges Bridges on the National Register of Historic Places in Iowa, Lists of bridges on the National Register of Historic Places by state, Iowa Iowa transportation-related lists, Bridges Lists of buildings and structures in Iowa, Bridges ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places Listings In Linn County, Iowa
This is a list of the National Register of Historic Places listings in Linn County, Iowa. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Linn County, Iowa, United States. Latitude and longitude coordinates are provided for many National Register properties and districts; these locations may be seen together in a map. There are 121 properties and districts listed on the National Register in the county. Five other sites that were once listed have been removed. Current listings Former listings See also * List of National Historic Landmarks in Iowa * National Register of Historic Places listings in Iowa * Listings in neighboring counties: Benton, Buchanan, Cedar, Delaware, Iowa, Johnson, Jones References {{DEFAULTSORT:National Register Of Historic Places Listings In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges Completed In 1884
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way 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, and 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 still in existence and use. Etymology The ''Oxford English Dictionary'' traces the origin of the wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Truss Bridges In Iowa
A truss is an assembly of ''members'' such as beams, connected by ''nodes'', that creates a rigid structure. In engineering, a truss is a structure that "consists of two-force members only, where the members are organized so that the assemblage as a whole behaves as a single object". A "two-force member" is a structural component where force is applied to only two points. Although this rigorous definition allows the members to have any shape connected in any stable configuration, trusses typically comprise five or more triangular units constructed with straight members whose ends are connected at joints referred to as ''nodes''. In this typical context, external forces and reactions to those forces are considered to act only at the nodes and result in forces in the members that are either tensile or compressive. For straight members, moments (torques) are explicitly excluded because, and only because, all the joints in a truss are treated as revolutes, as is necessary for t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
