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Five Stone Arch Bridges
Society: ASCEMain Category: CivilSub Category: BridgesEra: 1830-1839DateCreated: 1830-1860HillsboroughState: NHZip: 03244Country: USAWebsite: http://www.asce.org/Project/Five-Stone-Arch-Bridges/

"Some of New Hampshire's most aesthetically pleasing yet least appreciated structures are stone arch bridges."

YearAdded:
2002
Image Credit: Courtesy Flickr/Glass_house (CC BY-SA 2.0) Image Caption: The Gleason Falls Bridges, built in 1830, stands as a testament to the durability of dry-laid stone arches.Era_date_from: 1830
Seventh Street Improvement Arches
Society: ASCEMain Category: CivilSub Category: BridgesEra: 1880-1889DateCreated: 1883St. PaulState: MNZip: 55117Country: USAWebsite: http://www.asce.org/project/seventh-street-improvement-arches/Creator: Truesdell, William A.

Designed by William A. Truesdell, a railroad engineer, the Seventh Street Improvement Arches celebrates the engineering application of mathematics to improve living conditions.

YearAdded:
2000
Image Credit: Courtesy Wikipedia/Elkman (CC BY-SA 3.0) Image Caption: Designed by William A. Truesdell, a railroad engineer, the Seventh Street Improvement Arches celebrates the engineering application of mathematics to improve living conditions.Era_date_from: 1883
Alvord Lake Bridge
Society: ASCEMain Category: CivilSub Category: BridgesEra: 1880-1889DateCreated: 1889San FranciscoState: CACountry: USAWebsite: http://www.asce.org/project/alvord-lake-bridge/Creator: Ransome, Ernest

Alvord Lake Bridge, along with many of Ernest Ransome's reinforced concrete buildings, survived the 1906 San Francisco earthquake and several subsequent tremblers with no damage. Built in 1889 by Ernest L Ransome of New York, this reinforced concrete arch bridge in San Francisco's Golden Gate Park is believed to be the oldest concrete bridge in the United States that used steel reinforcing bars to improve the behavior of the concrete. The reinforcement consists of a series of square cold-twisted steel reinforcing bars, an invention of Ransome.

YearAdded:
1969
Image Credit: Public Domain (National Park Service)Image Caption: Alvord Lake BridgeEra_date_from: 1889
keeseville
Society: ASCEMain Category: CivilSub Category: BridgesEra: 1870-1879DateCreated: 1878AuSable RiverKeesevilleState: NYCountry: USAWebsite: http://www.asce.org/project/bridges-of-keeseville/Creator: Townsend, Soloman , Berlin Iron Bridge Company

A 214-foot single-span covered wooden bridge, built above the cribs of stone in the AuSable River that served to break log jams and ice floes, collapsed during the winter of 1875 under the weight of a three-foot snowfall and high winds. The "Upper Bridge" (pictured) was built in its place.

YearAdded:
1987
Image Credit: Public Domain (Released by Creator)Image Caption: The Keeseville Suspension Bridge built 1888, Keeseville, one of the three "Bridges of Keeseville" that span the AuSable RiverEra_date_from: 1878
Atlantic City Convention Hall
Society: ASCEMain Category: CivilSub Category: BuildingsEra: 1920-1929DateCreated: 1926-19292301 BoardwalkAtlantic CityState: NJZip: 08401Country: USAWebsite: http://www.asce.org/project/atlantic-city-municipal-convention-center/Creator: Lockwood-Greene & Co.

The quantities of materials used in the building are staggering: 12,000 tons of structural steel; 42,000 cubic yards of concrete - consisting of 65,000 barrels of cement and 25,000 tons of sand; 360,000 feet of piling; and 10,000,000 bricks. At the time of its construction, Atlantic City Municipal Convention Hall was believed to be the world's largest hall, capable of seating 40,000 people. It continues to serve as a meeting place for shows, pageants, sporting events, and conventions. It is a structure of heroic proportions.

YearAdded:
1983
Image Credit: Courtesy Flickr/Paul Lowry (CC BY 2.0)Image Caption: The Atlantic City Convention Hall maintains its magnificence even as it approaches 90 years of age.Era_date_from: 1926
Ascutney Mill Dam
Society: ASCEMain Category: CivilSub Category: DamsEra: 1830-1839DateCreated: 1834Mill BrookWindsorState: VTZip: 05089Country: USAWebsite: http://www.asce.org/Project/Ascutney-Mill-Dam/Creator: Beard, Ithamar , Cobb, Simeon

Ithamar A. Beard, an engineer of some prominence in New England, surveyed the mill brook and selected the best site for a storage dam. Contractor Simeon Cobb, knowledgeable of contemporary civil engineering practices, made major changes to the dam's original design, converting the linear dam into a gentle arch.

YearAdded:
1970
Image Credit: Courtesy Wikipedia/Ymblanter (CC BY-SA 3.0)Image Caption: The Ascutney Mill Arch-Gravity DamEra_date_from: 1834
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