Misplaced Pages

#888111

32-534: The 8-foot-wide (2.4 m) trail is open to non-motorized uses such as hiking and biking. A 4-foot-wide (1.2 m) horse trail parallels the hiking and biking trail. The rail trail crosses 12 bridges and the Buxton Trestle, a former railroad trestle bridge that is 600 feet (180 m) long and 80 feet (24 m) high. A second railroad trestle, the Tophill (or Horseshoe) Trestle, was damaged by fire in 1986 and

64-418: A plank or beam such as the support structure for a trestle table . Each supporting frame is a bent . A trestle differs from a viaduct in that viaducts have towers that support much longer spans and typically have a higher elevation. Timber and iron trestles (i.e. bridges) were extensively used in the 19th century, the former making up from 1 to 3 percent of the total length of the average railroad. In

96-406: A certain ride character (owing to structural response) that is appreciated by fans of the type. The Camas Prairie Railroad in northern Idaho utilized many timber trestles across the rolling Camas Prairie and in the major grade, Lapwai Canyon. The 1,490-foot (450 m) viaduct across Lawyers Canyon was the exception, constructed of steel and 287 feet (87 m) in height. The floodway of

128-431: A structure can be strong and support a high track path while using a relatively small amount of material. Since loads are well distributed through large portions of the structure it is also resilient to the stresses imposed. The structure also naturally leads to a certain redundancy (provided that economic considerations are not overly dominant). Such wooden coasters, while limited in their path (not supporting loops), possess

160-478: A trestle from which to dump the fill. Timber trestles remain common in some applications, most notably for bridge approaches crossing floodways , where earth fill would dangerously obstruct floodwater. For the purposes of discharging material below, a coal trestle carried a dead-end track, rather than a bridge. One of the longest trestle spans created was for railroad traffic crossing the Great Salt Lake on

192-403: A tripod used to support a stool or a pair of isosceles triangles joined at their apices by a plank or beam such as the support structure for a trestle table . Each supporting frame is a bent . A trestle differs from a viaduct in that viaducts have towers that support much longer spans and typically have a higher elevation. Timber and iron trestles (i.e. bridges) were extensively used in

224-651: A wooden trestle. Being less susceptible to fire damage in this brushy location is also an advantage. The approaches to the Kate Shelley High Bridge near Boone, Iowa, are steel trestles. New Orleans utilizes steel trestles to support parts of I-10 , the Pontchartrain Expressway , and Tulane Avenue . Also, trestles support the elevated railroad leading to and from the Huey P. Long Bridge . The first major prestressed concrete trestle railroad bridge built

256-399: Is a modern structure with a long expected lifetime compared to a wooden trestle. Being less susceptible to fire damage in this brushy location is also an advantage. The approaches to the Kate Shelley High Bridge near Boone, Iowa, are steel trestles. New Orleans utilizes steel trestles to support parts of I-10 , the Pontchartrain Expressway , and Tulane Avenue . Also, trestles support

288-484: Is a rigid-frame trestle supporting train tracks above chutes, used to deliver fuel to boats or trains beneath it. At the top of the trestle, rolling stock (typically hopper cars ) open doors on their undersides or on their sides to discharge cargo. Coal trestles were also used to transfer coal from mining railroads to rail cars. They were prominent when coal was an important fuel for rail locomotion and steamships , before they were replaced with mechanical coal loaders during

320-435: Is also resilient to the stresses imposed. The structure also naturally leads to a certain redundancy (provided that economic considerations are not overly dominant). Such wooden coasters, while limited in their path (not supporting loops), possess a certain ride character (owing to structural response) that is appreciated by fans of the type. The Camas Prairie Railroad in northern Idaho utilized many timber trestles across

352-472: Is bypassed with a series of switchbacks at the Tophill trailhead. Amenities available at some locations in the park include picnicking, fishing, wildlife watching, forests, bird-watching, historic sites, public restrooms, parking, horse hitching posts, a loading platform, and a whistle stop shelter. The rail trail connects to a network of about 20 miles (32 km) of unpaved mountain-biking trails in L. L. "Stub" Stewart State Park . About 14,000 people used

SECTION 10

#1733085140889

384-800: The Bonnet Carré Spillway in St. Charles Parish, Louisiana, is crossed by three wooden trestles each over 1.5 miles (2.4 km) in length. The trestles are owned by the Canadian National Railway (two trestles) and the Kansas City Southern Railroad. The trestles were completed in 1936, after construction of the Spillway. The trestles may be the longest wooden railroad trestles remaining in regular use in North America. A coal trestle

416-502: The Lucin Cutoff in Utah . It was replaced by a fill causeway in the 1960s, and is now being salvaged for its timber. Many wooden roller coasters are built using designs similar to trestle bridges because such a structure can be strong and support a high track path while using a relatively small amount of material. Since loads are well distributed through large portions of the structure it

448-429: The 19th century, the former making up from 1 to 3 percent of the total length of the average railroad. In the 21st century, steel and sometimes concrete trestles are commonly used to bridge particularly deep valleys, while timber trestles remain common in certain areas. Many timber trestles were built in the 19th and early 20th centuries with the expectation that they would be temporary. Timber trestles were used to get

480-507: The 20th century. Two that did, and which are still in daily use, cross the Afon Mawddach on the coast of Wales only a few miles apart, at Barmouth and Penmaenpool . The former, built in 1867, carries trains on the heavy rail Cambrian Coast Line travelling from England via Shrewsbury to the various small towns on Cardigan Bay . It also carries a toll-path for pedestrians. Road traffic at this location has to travel many miles around

512-614: The 20th century. Coal trestles were used in the Great Lakes ports of Buffalo (on Lake Erie ), Sodus Point and Oswego, New York (both on Lake Ontario ). In the United Kingdom, timber trestles were relatively short-lived as a structural type, one of their major uses being to cross the many deep valleys in Cornwall on the spinal rail route through the county. These were all replaced by masonry viaducts. Few timber trestles survived into

544-410: The 21st century, steel and sometimes concrete trestles are commonly used to bridge particularly deep valleys, while timber trestles remain common in certain areas. Many timber trestles were built in the 19th and early 20th centuries with the expectation that they would be temporary. Timber trestles were used to get the railroad to its destination. Once the railroad was running, it was used to transport

576-494: The Buxton Trailhead picnic pavilion and owned naming rights, choosing to call it the "Whistle Stop". Download coordinates as: Trestle bridge A trestle bridge is a bridge composed of a number of short spans supported by closely spaced frames. A trestle (sometimes tressel) is a rigid frame used as a support, historically a tripod used to support a stool or a pair of isosceles triangles joined at their apices by

608-589: The Kansas City Southern Railroad. The trestles were completed in 1936, after construction of the Spillway. The trestles may be the longest wooden railroad trestles remaining in regular use in North America. A coal trestle is a rigid-frame trestle supporting train tracks above chutes, used to deliver fuel to boats or trains beneath it. At the top of the trestle, rolling stock (typically hopper cars ) open doors on their undersides or on their sides to discharge cargo. Coal trestles were also used to transfer coal from mining railroads to rail cars. They were prominent when coal

640-457: The developing railway network in the United Kingdom. These generally carried decking consisting of some form of trussed girder, as at Crumlin Viaduct, Belah and Meldon ; though two rare examples, at Dowery Dell (demolished in 1962), and Bennerley had lattice girder decks. The steel trestle at Martinez, California, shown below, is a modern structure with a long expected lifetime compared to

672-469: The elevated railroad leading to and from the Huey P. Long Bridge . The first major prestressed concrete trestle railroad bridge built was the Atlantic Coast Line's Salkehatchie River trestle. Coal trestle A trestle bridge is a bridge composed of a number of short spans supported by closely spaced frames. A trestle (sometimes tressel) is a rigid frame used as a support, historically

SECTION 20

#1733085140889

704-602: The estuary to cross at either (for light traffic) the second trestle bridge, at Penmaenpool, which is a toll bridge; or (for heavy traffic) at Dolgellau even further up the estuary. Trestles in cast- or wrought-iron were used during the 19th century on the developing railway network in the United Kingdom. These generally carried decking consisting of some form of trussed girder, as at Crumlin Viaduct, Belah and Meldon ; though two rare examples, at Dowery Dell (demolished in 1962), and Bennerley had lattice girder decks. The steel trestle at Martinez, California, shown below,

736-461: The many deep valleys in Cornwall on the spinal rail route through the county. These were all replaced by masonry viaducts. Few timber trestles survived into the 20th century. Two that did, and which are still in daily use, cross the Afon Mawddach on the coast of Wales only a few miles apart, at Barmouth and Penmaenpool . The former, built in 1867, carries trains on the heavy rail Cambrian Coast Line travelling from England via Shrewsbury to

768-541: The material to replace trestles with more permanent works, transporting and dumping fill around some trestles and transporting stone or steel to replace others with more permanent bridges. In the later 20th century, tools such as the earthmover made it cheaper to construct a high fill directly instead of first constructing a trestle from which to dump the fill. Timber trestles remain common in some applications, most notably for bridge approaches crossing floodways , where earth fill would dangerously obstruct floodwater. For

800-588: The mills closed, and from 1965 through 1969 the Vernonia South Park and Sunset Railroad leased the line for a steam excursion train . The line was abandoned in 1973. The Oregon Department of Transportation bought the right-of-way in 1974, and transferred it to the Oregon Parks and Recreation Department in 1990. In 2007, L. L. "Stub" Stewart State Park opened adjacent to the trail. Trail improvements, which continued for two decades, were completed in 2010 with

832-508: The opening of the Banks trailhead and its kiosk, which resembles a railroad depot. The beginning of the trail runs through Pihl Road, in Manning, Oregon, named after Holger Mathew Pihl Sr. Hollie Pihl , a Circuit Court Judge, and his wife Alice spent countless hours clearing brush from the abandoned rail lines and donated money to help complete the project when project funds ran out. The two also funded

864-430: The purposes of discharging material below, a coal trestle carried a dead-end track, rather than a bridge. One of the longest trestle spans created was for railroad traffic crossing the Great Salt Lake on the Lucin Cutoff in Utah . It was replaced by a fill causeway in the 1960s, and is now being salvaged for its timber. Many wooden roller coasters are built using designs similar to trestle bridges because such

896-572: The rail trail in 2004. The Banks–Vernonia State Trail was the first linear rail trail state park in Oregon. The Portland, Astoria & Pacific Railroad built the original rail line in 1913 to transport timber, freight, and passengers. In the 1920s, trains on the line hauled logs and lumber from Keasey and the Oregon-American mill in Vernonia to Portland. The railroad stopped using the line in 1957 after

928-420: The railroad to its destination. Once the railroad was running, it was used to transport the material to replace trestles with more permanent works, transporting and dumping fill around some trestles and transporting stone or steel to replace others with more permanent bridges. In the later 20th century, tools such as the earthmover made it cheaper to construct a high fill directly instead of first constructing

960-438: The rolling Camas Prairie and in the major grade, Lapwai Canyon. The 1,490-foot (450 m) viaduct across Lawyers Canyon was the exception, constructed of steel and 287 feet (87 m) in height. The floodway of the Bonnet Carré Spillway in St. Charles Parish, Louisiana, is crossed by three wooden trestles each over 1.5 miles (2.4 km) in length. The trestles are owned by the Canadian National Railway (two trestles) and

992-409: The various small towns on Cardigan Bay . It also carries a toll-path for pedestrians. Road traffic at this location has to travel many miles around the estuary to cross at either (for light traffic) the second trestle bridge, at Penmaenpool, which is a toll bridge; or (for heavy traffic) at Dolgellau even further up the estuary. Trestles in cast- or wrought-iron were used during the 19th century on

Banks–Vernonia State Trail - Misplaced Pages Continue

1024-415: Was an important fuel for rail locomotion and steamships , before they were replaced with mechanical coal loaders during the 20th century. Coal trestles were used in the Great Lakes ports of Buffalo (on Lake Erie ), Sodus Point and Oswego, New York (both on Lake Ontario ). In the United Kingdom, timber trestles were relatively short-lived as a structural type, one of their major uses being to cross

#888111