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“Bite-Size Bits of Local, National, and Global History”
 
 

Historic Civil Engineering Landmarks Historical Markers

More than 200 markers sponsored by the American Society of Civil Engineer recognizing historically significant local, national, and international civil engineering projects, structures, and sites.
 
Navajo Bridge Marker image, Touch for more information
By Bill Kirchner, May 17, 2016
Navajo Bridge Marker
Arizona (Coconino County), Marble Canyon — Navajo Bridge
There are three markers on this end of the Navajo Bridge. (Marker on left:) National Historical Civil Engineering Landmark American Society of Engineers 1852 Designated by the American Society of Civil Engineers . . . — Map (db m94887) HM
California (Kern County), Tehachapi — 508 — Tehachapi Loop
From this spot may be seen a portion of the world-renowned “Loop.” It was completed in 1876 under the direction of William Hood, Southern Pacific Railroad Engineer. In gaining elevation around central hill of loop a 4000 foot train will . . . — Map (db m11903) HM
California (Kern County), Tehachapi — Tehachapi Pass Railroad Line — Constructed 1874 – 1876 — Commemorated October 1998
In front of you is the world famous Tehachapi Loop which is about halfway upgrade to the Tehachapi Pass. This steep line averages 2.2% in gradient in its 28 miles of length. This feat of civil engineering genius was crowning achievement of civil . . . — Map (db m11910) HM
California (Marin County), Sausalito — The Golden Gate Bridge
The Golden Gate Bridge is a structure of striking form and elegance. Built in 1937, it remains an indispensable link in the Bay Area's transportation network and a historical monument of civil engineering and construction. The bridge was named for . . . — Map (db m102433) HM
Colorado (Montezuma County), Cortez — Prehistoric Mesa Verde Reservoirs
National Historic Civil Engineering Landmark [American Society of Civil Engineering 1852 Logo] Prehistoric Mesa Verde Reservoirs Mesa Verde's industrious Ancestral Puebloans designed, constructed, and maintained Morefield, . . . — Map (db m58965) HM
Colorado (Montezuma County), Mesa Verde National Park — Far View Reservoir
Imagine this mesa top in A.D. 1150 with fields of corn, beans, and squash; supplemented with wild plants such as amaranth, tubers, and sunflowers. Children could be seen watering corn with clay water jars (ollas), and young men could be seen cutting . . . — Map (db m71901) HM
Delaware (New Castle County), Delaware City — Delaware Historic Civil Engineering Landmark
Chesapeake & Delaware Canal Designated 1982, Delaware Section, ASCE — Map (db m10204) HM
Georgia (Chatham County), Savannah — City Plan of Savannah
National Historic Civil Engineering Landmark City Plan of Savannah               Presented 1978 — Map (db m67944) HM
Illinois (Cook County), Chicago — Monument of the Millennium
[Text on the right] The ASCE presented only ten such awards worldwide, each representing the most outstanding example of Civil engineering in a particular area of infrastructure over the past century.

Created in 1889, the District built . . . — Map (db m47658) HM

Indiana (Franklin County), Metamora — Duck Creek Aqueduct
An aqueduct is a bridge carrying one body of water over another. The Duck Creek Aqueduct was originally built in 1843 to convey the canal over Duck Creek 16 feet below. Flood waters in 1847 destroyed the aqueduct, which was soon replaced by the . . . — Map (db m55560) HM
Louisiana (Saint Tammany Parish), Mandeville — Lake Pontchartrain Causeway Bridge — National Historic Civil Engineering Landmark
The original 23.86 mile-long structure, which now carries the Southbound traffic, was designed by the firm of Palmer & Baker. When opened in 1956, the structure was the longest bridge in the world by more than 15 miles. In building the bridge, which . . . — Map (db m99805) HM
Maine (Cumberland County), Portland — Portland Observatory
has been designated a National Historic Landmark This site possesses national significance in commemorating the history of the United States of America. The Observatory is the nation's only remaining maritime signal tower. It served . . . — Map (db m50418) HM
Maryland (Baltimore County), Relay — The Thomas Viaduct
Front Commenced, July 4th, 1833. Finished, July 4th, 1835. Rear Johnathan Knight, Chief Engineer Caspar W. Wever, Superintendent of Construction. Designed by Benjamin H. Latrobe. . . . — Map (db m127) HM
Massachusetts (Norfolk County), Canton — Canton Viaduct
Constructed in 1835 National Register of Historic Places Placed by Canton Historical Commission Dedicated July 4th 1993 National Historic Civil Engineering Landmark Designated by the American society of Civil Engineers Dedicated in . . . — Map (db m52387) HM
Massachusetts (Norfolk County), Quincy — The Granite Railway
National Historic Civil Engineering Landmark. The Granite Railway Designated by the American Society of Civil Engineers 1976 This marker commemorates the 150th anniversary of the ground breaking for the first commercial railroad in the . . . — Map (db m49466) HM
Massachusetts (Suffolk County), Boston — Dry Dock 1 — Boston Nat’l Hist Pk — Charlestown Navy Yard
This stone and metal structure is Dry Dock 1, completed in 1833. As one of America’s first two granite dry docks, Dry Dock 1 made the repair of large naval ships faster, easier, and safer. Returning warships to sea duty in less time was a crucial . . . — Map (db m37697) HM
Michigan (Allegan County), Allegan — S549A — The Second Street Bridge
This simply ornamented wrought-iron bridge was built in 1886. It replaced an earlier wooden one that had begun to fall into disrepair. Designed by the King Iron Bridge and Manufacturing Company of Cleveland, Ohio, the double-intersection Pratt truss . . . — Map (db m69901) HM
Minnesota (Hennepin County), Minneapolis — Stone Arch Bridge
"This viaduct...is the only one of its kind that spans the Father of Waters, and is one of the largest and most noteworthy in the United States. Firmer than the earth which supports it, it is constructed to stand the test of time." . . . — Map (db m27042) HM
Minnesota (Hennepin County), Minneapolis — The Stone Arch Bridge — Saint Anthony Falls Heritage Trail
In 1879 St. Paul railroad magnate James J. Hill opened his "Manitoba line" to the Canadian border, linking the wheat fields of the Red River Valley with the flour mills of Minneapolis. To improve railroad access at the falls he built this 2,100-foot . . . — Map (db m21031) HM
Missouri, St. Louis — Union Station
has been designated a National Historic Landmark This site possesses national significance in commemorating the history of the United States of America ——————— [Markers on interior . . . — Map (db m62210) HM
Nevada (Clark County), Boulder City — Civil Engineering Monument of the Millennium — Hoover Dam
One of the finest examples of how civil engineering ingenuity shaped the development of society's quality of life in the 20th century. — Map (db m31900) HM
Nevada (Clark County), Boulder City — Hoover Dam
A modern civil engineering wonder of the United States One of seven selected by the American Society of Civil Engineers 1955 — Map (db m13436) HM
New Jersey (Passaic County), Paterson — Great Falls Raceway and Power System — National Historic Civil and Mechanical Engineering Landmark
Alexander Hamilton, with great vision, prompted the incorporation of the "society for establishing usefull [sic] manufactures" in 1791 to start America's economic and industrial independence. Pierre Charles L'Enfant, engineer and planner of the . . . — Map (db m64189) HM
New Jersey (Sussex County), Stanhope — National Historic Civil Engineering Landmark
The hydraulic – powered inclined plane system of the Morris Canal. Presented 1980 — Map (db m99035) HM
New York (Dutchess County), Poughkeepsie — Poughkeepsie-Highland Bridge — National Historic Civil Engineering Landmark
The Poughkeepsie-Highland Bridge is the oldest surviving steel cantilever bridge in the world, and when built, had the longest truss and cantilever spans. The bridge provided the first, and only, all-rail route across the Husdon River south of . . . — Map (db m35483) HM
New York (Monroe County), Rochester — National Historic Civil Engineering Landmark — Erie Canal
National Historic Civil Engineering Landmark The Erie Canal Begun at Rome, N.Y., July 4, 1817 - Completed 1825 Benjamin Wright (1770-1842) Chief Engineer ASCE 1967 — Map (db m63996) HM
New York (Niagara County), Niagara Falls — Bridges of Niagara — International Historic Civil Engineering Landmark
Since 1848 many bridges have spanned the Niagara Gorge below Niagara Falls. The design and construction of these bridges was necessary for the economic development of the Niagara Falls area. The demand for safe and convenient crossings was easily . . . — Map (db m72386) HM
New York (Orange County), West Point — National Historic Civil Engineering Landmark — U. S. Military Academy
The oldest extant institution in the United States to offer formal academic instruction in the field of civil engineering (Sept. 1813). — Map (db m35349) HM
New York (Saratoga County), Waterford — Flight of Five Locks
National Historic Civil Engineering Landmark American Society of Civil Engineers 1852 Flight of Five Locks - New York State Barge Canal The Greatest Series of High Lift Locks In The Shortest Distance Of Any Canal In The United . . . — Map (db m58539) HM
New York (Saratoga County), Waterford — Waterford Bridges — National Historic Civil Engineering Landmark
National Historic Civil Engineering Landmark Waterford Bridges Waterford, New York The Union Bridge, the first to cross the lower Hudson River was built in 1804 at this site by Theodore Burr and lasted for 105 years until it was . . . — Map (db m70365) HM
New York (Schoharie County), North Blenheim — Old Blenheim Bridge
Erected 1854 - 1855 by Nicholas Montgomery Powers Famous bridge builder Born Pittsford, Vermont, August 30, 1817 Died Clarendon, Vermont, 1897 This bridge, 232 feet in length, the longest covered single-span wooden bridge in the . . . — Map (db m46983) HM
Ohio (Montgomery County), Vandalia — The Miami Conservancy District
The Miami Conservancy District is a public corporation established following the passage of the Conservancy Act of Ohio in 1914. After the 1913 flood inundated the Miami Valley, local citizens were determined to avoid such a disaster in the . . . — Map (db m95581) HM
Ohio (Morgan County), Rokeby Lock — Muskingum River Navigation System — National Historic Civil Engineering Landmark
The Muskingum River Improvement, started in 1837, played a key role in economic development of the Greater Ohio River Valley as one of the nation's first complete slackwater navigation systems for steam-powered vessels, and survives as the most . . . — Map (db m13382) HM
Ohio (Summit County), Akron — 29-77 — Airdock
A colossus of engineering acumen and structural steel, the Airdock was built in 1929 as the construction facility for the U.S. Navy's rigid airships, the USS Akron (1931) and USS Macon (1933). The airships, or dirigibles, served as . . . — Map (db m43475) HM
Pennsylvania (Cambria County), Allegheny Portage Railroad National Historic Site — Allegheny Portage Railroad
National Historic Civil Engineering Landmark — Map (db m53793) HM
Pennsylvania (Cambria County), Altoona — Horseshoe Curve — National Historic Engineering Landmark
Designed and built under the direction [of] Pennsylvania Railroad chief engineer and, later, company president, J. Edgar Thomson. Horseshoe Curve opened February 15, 1854. It was 366 meters across and 1310 meters long with a 1.8 percent grade. . . . — Map (db m52488) HM
Pennsylvania (Lebanon County), Lebanon — Union Canal Tunnel
Designated a National Historic Civil Engineering Landmark in 1970, this tunnel is the oldest existing transportation tunnel in the United States. At the time of its construction it was considered a work almost unknown in this country.

Dug . . . — Map (db m84218) HM

Pennsylvania (McKean County), Mount Jewett — Kinzua Viaduct
Originally begun in 1881 for the New York, Lake Erie & Western Railroad to ship coal, lumber, and oil, it was once the world’s highest and longest rail viaduct. Rebuilt in 1900 to carry heavier loads, it was in service until 1959. Kinzua Bridge . . . — Map (db m51329) HM
Pennsylvania (Northampton County), Bethlehem — Waterworks — 1762
“They have a Sett of Pumps which go by Water, which force the water up through leaden Pipes, from the River to the Top of the Hill, near an hundred feet.” John Adams to Abigail Adams 1777 A bountiful spring supplied . . . — Map (db m27191) HM
Pennsylvania (Philadelphia County), Philadelphia — The City Plan of Philadelphia
Planned 1682 National Historic Civil Engineering Landmark The City Plan of Philadelphia Surveyor General Thomas Holme, Governor William Penn & others Planned the open Public Squares and Rational Street Layout that we enjoy today. These . . . — Map (db m50982) HM
Pennsylvania (Wyoming County), Nicholson — Tunkhannock Viaduct — AKA Nicholson Bridge — National Historic Civil Engineering Landmark

Tunkhannock Viaduct 1912 — Built — 1915 by The Delaware, Lackawanna and Western Railroad Company

W. H. Truesdale — President G. J. Ray — Chief Engineer Flickwir & Bush — Contractors

Length 2375 . . . — Map (db m102847) HM

South Dakota (Brule County), Chamberlain — Missouri River Bridges of South Dakota — National Historic Civil Engineering Landmark
Completed 1927 Commemorated 1995 — Map (db m101386) HM
Texas (Bexar County), San Antonio — San Antonio's River Walk and Flood Control System
National Historic Civil Engineering Landmark — Map (db m30924) HM
Texas (Galveston County), Galveston — Galveston Seawall and Grade Raising — National Historic Civil Engineering Landmark — American Society of Civil Engineers 1852
Following the hurricane of 1900, the greatest natural disaster of U.S. history, with the loss of 6,000 lives, civil engineers designed and built a concrete seawall and raised the elevation of Galveston Island, using pioneering materials and methods, . . . — Map (db m90439) HM
Texas (Panola County), Carthage — International Boundary Marker — Republic of Texas-United States — Historic Civil Engineering Landmark
Historic Civil Engineering Landmark International Boundary Marker Republic of Texas-United States (Set April 23, 1841) Designated by the Texas and Louisiana SectionsMap (db m105272) HM
Utah (Washington County), Springdale — Zion Mt. Carmel Tunnel and Highway, Utah — National Historic Civil Engineering Landmark
This 5,613- foot-long tunnel, the longest vehicular tunnel in the National Park System, was blasted through the towering sandstone cliffs above Pine Creek Canyon. Construction required extraordinary access through cliff-face galleries for blasting . . . — Map (db m74632) HM
Virginia (Fairfax County), Great Falls — Great Falls Canal and Locks
National Historic Civil Engineering Landmark Great Falls Canal and Locks Constructed 1785-1802. Operated until 1821 ——— These works were the major feature of the first river navigation system for trade with the west. This . . . — Map (db m4975) HM
Virginia, Portsmouth — Norfolk Naval Shipyard — “Dry Dock 1” — Path of History Portsmouth, VA
Convinced of the need to more quickly and efficiently repair the nation's Navy ships, President John Quincy Adams and Congress agreed in 1827 to follow engineers' recommendations to build two dry docks, one here and one in Boston. The . . . — Map (db m76838) HM
West Virginia (Berkeley County), Martinsburg — Baltimore and Ohio Railroad Shop Complex
The roundhouse is the sole surviving cast-iron framed roundhouse and is an important example of mid-19th century industrial building design. Designed by Albert Fink, in collaboration with Benjamin H. Latrobe, it represents an early use of . . . — Map (db m1199) HM
West Virginia (Berkeley County), Martinsburg — Baltimore and Ohio Roundhouse and Shop Complex
National Civil Engineering Landmark. The re-construction of the Baltimore and Ohio Railroad Roundhouse and Shop Complex commenced soon after the end of the American Civil War in 1865. This complex included two roundhouses and two significant . . . — Map (db m17373) HM

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