Contents:
The Societys Committee on Technical Advancement has 10 divisions, each year, more than 6, civil engineering professionals contribute volunteer technical expertise through participation on ASCE technical committees. Certification is the recognition of attaining advanced knowledge and skills in a specialty area of civil engineering, ASCE offers certifications for engineers who demonstrate advanced knowledge and skills in their area of engineering. Special consideration is given to private practice engineering work that is recognized as a contribution to the field of environmental engineering.
The Lifetime Achievement Award has been presented annually since and recognizes five different individual leaders, one award is present in each category of design, construction, government, education, and management. On June 1,, the ASCE issued its expert review panel report, the report stated that had levees and pump stations not failed, far less property loss would have occurred and nearly two-thirds of deaths could have been avoided. It took over a year for the ASCE to announce the results of the CPC, the ASCE self-study panel did not file charges of ethical misconduct and blamed errors on staff and not review panel members having created the June press release.
National Register of Historic Places — The National Register of Historic Places is the United States federal governments official list of districts, sites, buildings, structures, and objects deemed worthy of preservation. The passage of the National Historic Preservation Act in established the National Register, of the more than one million properties on the National Register,80, are listed individually. The remainder are contributing resources within historic districts, each year approximately 30, properties are added to the National Register as part of districts or by individual listings.
For most of its history the National Register has been administered by the National Park Service and its goals are to help property owners and interest groups, such as the National Trust for Historic Preservation, coordinate, identify, and protect historic sites in the United States. While National Register listings are mostly symbolic, their recognition of significance provides some financial incentive to owners of listed properties, protection of the property is not guaranteed.
During the nomination process, the property is evaluated in terms of the four criteria for inclusion on the National Register of Historic Places, the application of those criteria has been the subject of criticism by academics of history and preservation, as well as the public and politicians. Occasionally, historic sites outside the proper, but associated with the United States are also listed.
Properties can be nominated in a variety of forms, including individual properties, historic districts, the Register categorizes general listings into one of five types of properties, district, site, structure, building, or object. National Register Historic Districts are defined geographical areas consisting of contributing and non-contributing properties, some properties are added automatically to the National Register when they become administered by the National Park Service.
Initially, the National Register consisted of the National Historic Landmarks designated before the Registers creation, approval of the act, which was amended in and , represented the first time the United States had a broad-based historic preservation policy. Department of the Interior, hartzog, Jr. Murtagh, an architectural historian. During the Registers earliest years in the late s and early s, organization was lax and SHPOs were small, understaffed, and underfunded.
A few years later in , the NPS history programs affiliated with both the U. National Parks system and the National Register were categorized formally into two Assistant Directorates. In February , the two assistant directorates were merged to promote efficiency and recognize the interdependency of their programs, jerry L. Rogers was selected to direct this newly merged associate directorate. Lincoln Highway — The Lincoln Highway was one of the earliest transcontinental highways for automobiles across the United States of America.
Conceived in by Indiana entrepreneur Carl G, in , the Colorado Loop was removed, and in , a realignment relocated the Lincoln Highway through the northern tip of West Virginia. Thus, there are a total of 14 states, counties, the first officially recorded length of the entire Lincoln Highway in was 3, miles.
Over the years, the road was improved and numerous realignments were made, counting the original route and all of the subsequent realignments, there have been a grand total of 5, miles. The Lincoln Highway was gradually replaced with numbered designations after the establishment of the U.
Route from Princeton southwestward to Trenton, U. Route 1 from Trenton southwestward to Philadelphia, Pennsylvania.
Route 30 from Philadelphia westward across Pennsylvania, the tip of West Virginia. Route 93 Alternate and U.
It was destroyed September 30, by the Cedar Keys hurricane. Looking upstream in Danville, Pennsylvania. Local vendors were on hand In this way, canal boats were towed across the river from the Pennsylvania Canal on the Columbia side to the Susquehanna and Tidewater Canal at Wrightsville. Baumgardener's Covered Bridge , showing the truss protected by the covering.
Route 93 from West Wendover southward to Ely, Nevada. As the first automobile road across America, the Lincoln Highway brought great prosperity to the hundreds of cities, towns, the Lincoln Highway became affectionately known as The Main Street Across America. Route 30 in Pennsylvania — In the U. It is a road from West Virginia to the U. Route 22 junction southeast of Imperial. Much of this section of U. It then heads into Somerset County, where it meets U.
Route east of Jennerstown. On September 11,, United Airlines Flight 93 crashed in an empty field approximately two miles south of U. The entrance to the permanent Flight 93 National Memorial is along U. It then passes through the town of Breezewood, Pennsylvania, where Interstate 70 traffic must still use a short section of U. The route then narrows back to two lanes climbs through the Allegheny Mountains as it passes through Fulton County, intersecting U. Route in McConnellsburg.
West of Gettysburg, U. Past Gettysburg, Route 30 travels through Guldens and New Oxford before entering York County, several modifications to improve flow have been made in York but the route is still congested due to a series of traffic signals. A controlled-access highway, it runs for miles across the state, the turnpike begins at the Ohio state line in Lawrence County, where the road continues west into Ohio as the Ohio Turnpike. The highway runs east—west through the state, connecting the Pittsburgh, Harrisburg and it crosses the Appalachian Mountains in central Pennsylvania, passing through four tunnels.
The road uses a system of tolling between the Warrendale and Neshaminy Falls toll plazas. An additional eastbound toll plaza is located at Gateway, near the Ohio border, E-ZPass, a form of electronic toll collection, is accepted at all toll plazas. The mainline turnpike was finished in with the completion of the Delaware River Bridge, during the s an additional tube was bored at four of the two-lane tunnels, while the other three tunnels were bypassed, these improvements made the entire length of the highway four lanes wide.
Improvements continue to be made to the road, rebuilding the section to modern standards, widening portions of the turnpike to six lanes. The turnpike runs east—west across Pennsylvania, from the Ohio state line in Lawrence County to the New Jersey state line in Bucks County and it passes through the Pittsburgh, Harrisburg, and Philadelphia areas, along with farmland and woodland. The highway crosses the Appalachian Mountains, in the part of the state. The Pennsylvania Turnpike Commission, created in to construct, finance, operate, five members comprise the commission, including the secretary of the Pennsylvania Department of Transportation and four other members appointed by the governor of Pennsylvania.
The Pennsylvania Turnpike begins at the Ohio state line in Lawrence County, from the state line, the turnpike heads southeast as a four-lane freeway designated as I through the rural area south of New Castle.
A short distance from the Ohio border, the lanes come to the Gateway toll plaza. The highway then crosses into Beaver County, where it reaches its first interchange with I in Big Beaver, after this interchange, the turnpike reaches the exit for PA18 in Homewood before crossing the Beaver River on the Beaver River Bridge. The road then enters Butler County, where it comes to Cranberry Township, here, an interchange accesses U.
Route 19 and I The turnpike continues through a mix of land and suburban residential development north of Pittsburgh into Allegheny County. The road then approaches the Warrendale toll plaza, and continues southeast to an interchange with PA8 in Hampton Township, the turnpike then comes to the Allegheny Valley exit in Harmar Township, which provides access to PA28 via Freeport Road.
Covered bridge — A covered bridge is a timber-truss bridge with a roof and siding which, in most covered bridges, create an almost complete enclosure. The purpose of the covering is to protect the structural members from the weather.
Uncovered wooden bridges have a lifespan of only 10 to 15 years because of the effects of rain, Bridges having covers for reasons other than protecting wood trusses, such as for protecting pedestrians and keeping horses from shying away from water, are also sometimes called covered bridges. Early timber covered bridges consisted of horizontal beams laid on top of piles driven into the riverbed below, however, this construction method meant that the length between bridge spans was limited by the maximum length of each beam. Early European truss bridges used king post and queen post configurations, some early German bridges included diagonal panel bracing in trusses with parallel top and bottom chords.
To solve the problem of deterioration of the wood upon exposure to weather, at least two covered bridges make the claim of being the first built in the United States. Town records for Swanzey, New Hampshire, indicate their Carleton Bridge was built in , philadelphia, however, claims a bridge built in the early s on 30th Street and over the Schuylkill River was the first, noting that investors wanted it covered to extend its life.
Beginning around , new designs were developed, such as the Burr, Lattice, in the mids, the development of cheaper wrought iron and cast iron led to metal rather than timber trusses, except in those areas of plentiful large timber. There are also covered bridges in Fujian, taishun County, in southern Zhejiang province near the border of Fujian, has more than covered bridges, many of them hundreds of years old, as well as a covered bridge museum. Delaware - Three bridges remain in New Castle county, see list of covered bridges in Indiana. It is now a fallen flag railway, having come under the control of the later Penn Central, Conrail, and then broken apart and disestablished.
Only the trackage around Baltimore remains in rail service, to reach the Susquehanna at any commercially useful point, the new line would have to cross the state line into York County, Pennsylvania. However, the Pennsylvania General Assembly did not look favorably on the prospect of the trade of its southern counties being tapped for the benefit of Baltimore, instead of its own Philadelphia. This line included the use of the Howard Tunnel, near Seven Valleys, Pennsylvania, constructed , and opened , in the railroad purchased its first locomotive, the Herald, which was run along the route from Baltimore to Owings Mills.
This purchase was an undertaking, for it was built in England. Also, because the age of railroading was new to America, john Lawson, went on to own, captain and be first engineer to the Cherokee steamboat, which helped with the Confederate Army effort during the American Civil War. Military Academy and colonel of a regiment during the Mexican War.
In March , the Provisional Confederate Congress established a more permanent Confederate States Army, the better estimates of the number of individual Confederate soldiers are between , and 1,, men. This does not include a number of slaves who were pressed into performing various tasks for the army, such as construction of fortifications. Since these figures include estimates of the number of individual soldiers who served at any time during the war. These numbers do not include men who served in Confederate naval forces, although most of the soldiers who fought in the American Civil War were volunteers, both sides by resorted to conscription, primarily as a means to force men to register and to volunteer.
In the absence of records, estimates of the percentage of Confederate soldiers who were draftees are about double the 6 percent of Union soldiers who were conscripts.
Confederate casualty figures also are incomplete and unreliable, one estimate of Confederate wounded, which is considered incomplete, is , These numbers do not include men who died from causes such as accidents. Other Confederate forces surrendered between April 16, and June 28,, by the end of the war, more than , Confederate soldiers had deserted.
The Confederacys government effectively dissolved when it fled Richmond in April, by the time Abraham Lincoln took office as President of the United States on March 4,, the seven seceding slave states had formed the Confederate States. The Confederacy seized federal property, including nearly all U. Army forts, Lincoln was determined to hold the forts remaining under U. The Northern states were outraged by the Confederacys attack and demanded war and it rallied behind Lincolns call on April 15, for all the states to send troops to recapture the forts from the secessionists, to put down the rebellion and to preserve the Union intact.
Four more slave states joined the Confederacy. The Confederate Congress provided for a Confederate army patterned after the United States Army and it was to consist of a large provisional force to exist only in time of war and a small permanent regular army. Although the two forces were to exist concurrently, very little was done to organize the Confederate regular army, the Provisional Army of the Confederate States began organizing on April Virtually all regular, volunteer, and conscripted men preferred to enter this organization since officers could achieve a rank in the Provisional Army than they could in the Regular Army.
From Wikipedia, the free encyclopedia. This article has multiple issues. Please help improve it or discuss these issues on the talk page.
Learn how and when to remove these template messages. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. June Learn how and when to remove this template message. This article may require cleanup to meet Wikipedia's quality standards.
No cleanup reason has been specified. Please help improve this article if you can. January Learn how and when to remove this template message. Pennsylvania Railroad Bridge Columbia, Pennsylvania. Historic American Engineering Record. Archived from the original PDF on October 22, Retrieved February 1, Bridges of the Susquehanna River. Bridges and tunnels on the National Register of Historic Places. West Virginia Wisconsin Wyoming. Retrieved from " https: Articles needing additional references from June All articles needing additional references Articles needing cleanup from January All pages needing cleanup Cleanup tagged articles without a reason field from January Wikipedia pages needing cleanup from January Articles with multiple maintenance issues Coordinates on Wikidata All articles with unsourced statements Articles with unsourced statements from September Structurae ID different from Wikidata.
Concord Point Light was built here in to accommodate the increasing navigational traffic, Susquehanna comes from the Lenapi term Sisawehakhanna, which means Oyster River 2. The Zhaozhou Bridge, with a length of feet and span of feet, is the worlds first wholly stone open-spandrel segmental arch bridge, Bridges with perforated spandrels can be found worldwide, such as in China 5.
Rogers was selected to direct this newly merged associate directorate 7. As the first automobile road across America, the Lincoln Highway brought great prosperity to the hundreds of cities, towns, the Lincoln Highway became affectionately known as The Main Street Across America 8.
Along the north side of Lancaster, US30 intersects the terminus of Pennsylvania Route , which heads to Harrisburg 9. The road then approaches the Warrendale toll plaza, and continues southeast to an interchange with PA8 in Hampton Township, the turnpike then comes to the Allegheny Valley exit in Harmar Township, which provides access to PA28 via Freeport Road Delaware - Three bridges remain in New Castle county, see list of covered bridges in Indiana YouTube Videos [show more].
Looking upstream in Danville, Pennsylvania. Susquehanna River at source, looking at Otsego Lake. Looking downriver at Sunbury, Pennsylvania. Columbia-Wrightsville Veterans Memorial Bridge. Interior of the Pantheon dome, seen from beneath. The concrete for the coffer ed dome was laid on moulds, probably mounted on temporary scaffolding.
Opus caementicium exposed in a characteristic Roman arch. In contrast to modern concrete structures, the concrete used in Roman buildings was usually covered with brick or stone. Lee first ordered soldiers northward toward the state capital in Harrisburg, but he redirected troops eastward to protect communication and supply lines to Virginia by intercepting Union troops. That fateful meeting would happen several days later in Gettysburg.
Franklin County also witnessed the aftermath of the Battle of Gettysburg: A wagon train of wounded and dying Confederate soldiers stretching 17 miles passed through the county while retreating south. Union Cavalry were aided by Hetty Zeilinger, a year- old local girl, who warned them that Confederate artillery was blocking the pass. According to historical accounts, a soldier lifted her into his saddle and the brave girl guided cavalry through the pass.
A series of skirmishes, made confusing by lightning, gunfire and horses bolting down mountainsides, concluded in Maryland, making it the only battle fought on both sides of the Mason-Dixon Line. On the morning of July 29, , Confederate soldiers fired cannons and rang the courthouse bell to wake and gather residents. Troops began setting fires throughout town when it became clear residents could not pay the ransom.
Several times during the war, Pennsylvania Gov. Andrew Gregg Curtin ordered militia to organize and defend the Commonwealth from the Confederate Army. In , Harrisburg was the scene of an unprecedented event honoring black soldiers. However, the , African-Americans who served in the Union Army were not invited. On November 14, however, black veterans held a parade in Harrisburg and were reviewed by U.
Senator and former secretary of war Simon Cameron. Pennsylvania was the only state to honor black Civil War soldiers. Towns throughout central Pennsylvania, including Carlisle, Shippensburg and Mechanicsburg, also experienced the Civil War firsthand in June of Albert Jenkins and his cavalry rode into town on June Union cavalry tried to secure Main Street, now King Street, but about an hour later, Confederates had overtaken the entire town as residents watched from atop their roofs.
In Mechanicsburg, when Confederate scouts arrived at the home of Burgess George Hummel, threatening bombardment, Hummel surrendered the town and Mechanicsburg became the northernmost town to surrender to the Confederacy. Just eight miles from Harrisburg, the troops were hoping to capture the state capital but Gen.
Lee called them south to Gettysburg. As fighting began in the Battle of Gettysburg on July 1, a firing of Confederate batteries began in Carlisle. Large black populations resided in Columbia and Lancaster, where many white residents supported the abolitionist cause. Church, a station on the Underground Railroad, helped send fugitives on to Philadelphia or further north into Canada. York County contained valuable assets targeted by the Confederates, including a key railroad intersection, Hanover Junction.
This temporarily disrupted Union communications and supply movements. A day later, York became the largest Northern town captured by the Confederate Army. The mayor and town leaders surrendered the city to Maj. Early and 5, troops. The Confederates allowed residents to move about freely in an agreement of peaceful occupation.
Having gained a foothold in York, the Confederates hoped to capture Harrisburg or Philadelphia next. Pennsylvania militiamen from Columbia joined forces with Union troops retreating from York, along with the first African-American company from Camp William Penn outside Philadelphia. Standing their ground on the Lancaster County side of the river, 1, men were waiting when Confederate Brig. John Brown Gordon arrived on June 28 with 1, troops.
The Union could not maintain their position along the river and, retreating to Columbia, they decided to blow up a section of the bridge, halting the Confederates in their eastward quest. When the explosion failed, troops were ordered to burn it instead.
As Stuart approached Hanover, he encountered Union cavalry led by Brig. Judson Kilpatrick, including Brig. Coincidentally, Custer had just been appointed brigadier general the day before. Stuart did not arrive in Gettysburg until July 2 in the late afternoon. The rolling farmland of Carroll County, Maryland. More than 60, soldiers marched through the rolling farmland of Carroll County to arrive on the northern side of the Mason-Dixon Line and engage in the Battle of Gettysburg, July , Meade, commander of the Army of the Potomac, devised a plan to protect Baltimore and Washington, as Confederate troops converged on the region.
On June 29, , a clash between Gen. Lee of major Union troop movements. Stuart did not arrive in Gettysburg until July 2, the midpoint of battle.