1 ► Alabama, Mobile County, Le Moyne — Ellicott's Stone — Erected April 9th, 1799

On U.S. 43 at milepost 19,, 0.1 miles south of Lofton Road, on the right when traveling north. Reported damaged.

2 ► Alaska, Juneau Borough, Juneau, Downtown Juneau — Alaska Governor's Mansion —

On Calhoun Avenue at Indian, on the left when traveling north on Calhoun Avenue.

3 ► Arizona, Cochise County, San Simon — The San Simon Rest Area - Percy Jones, Jr. —

Near Interstate 10 at milepost 388.

4 ► Arizona, Cochise County, San Simon — The San Simon Rest Area - Percy Jones, Jr. —

5 ► Arizona, Coconino County, Grand Canyon National Park — Kaibab Trail Suspension Bridge — National Historic Civil Engineering Landmark —

On Rim Trail north of Yavapai Point, on the right when traveling west.

6 ► Arizona, Coconino County, Marble Canyon — Navajo Bridge —

Near U.S. 89A at milepost 538.

7 ► Arizona, Coconino County, Page — Colorado River Storage Project / Glen Canyon Dam — Reclamation: Managing Water in the West —

8 ► Arizona, Maricopa County, Mesa — Prehistoric Irrigation in the Salt River Valley —

Near North Horne Avenue, 0.4 miles south of East McKellips Road.

9 ► Arizona, Yavapai County, Bumble Bee — The Sunset Point Rest Area — Dedicated to the Engineering Achievement of — William Clayton LeFebvre, 1890-1964 —

10 ► California, Alameda County, San Leandro — Chabot Dam —

Near Estudillo Avenue.

11 ► California, Alameda County, Sunol — Alameda Creek Water System — Sunol Water Temple Restoration —

Near Paloma Way.

12 ► California, Humboldt County, Fernbridge — Fernbridge —

On California Route 211 at Depot Street, on the left when traveling south on State Route 211.

13 ► California, Kern County, Lebec — Interstate Highway 5 —

Near Interstate 5, 0.8 miles north of Frazier Mountain Park Road.

14 ► California, Kern County, Tehachapi — Tehachapi Pass Railroad Line — Constructed 1874 – 1876 — Commemorated October 1998 —

On Woodford-Tehachapi Road, 3.2 mi E of Keene exit, on the left when traveling east.

15 ► California, Los Angeles County, Gorman — The “Ridge Route” — California Historic Civil Engineering Landmark — Constructed 1914-1915 —

Near Vista Del Lago Road at Interstate 5.

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16 ► California, Los Angeles County, Los Angeles, Downtown Los Angeles — Los Angeles City Hall — Local Historic Civil Engineering Landmark —

Near North Main Street north of 1st Street.

17 ► California, Los Angeles County, Los Angeles, Sylmar — 653 — "The Cascades"

On Foothill Boulevard, 0.1 miles north of Balboa Boulevard, on the right when traveling north. Reported missing.

18 ► California, Los Angeles County, Los Angeles, Sylmar — 653 — The Cascades —

On Foothill Boulevard, 0.1 miles west of Balboa Boulevard, on the right when traveling west.

19 ► California, Los Angeles County, Pasadena, South Arroyo — Colorado Street Bridge — Historic Civil Engineering Landmark —

On Colorado Boulevard, 0.1 miles west of Orange Grove Boulevard, on the left when traveling west.

20 ► California, Los Angeles County, Torrance, Old Torrance — Pacific Electric Railway — El Prado Bridge —

On Torrance Boulevard at Bow Avenue, on the right when traveling east on Torrance Boulevard.

21 ► California, Marin County, Sausalito — 974 — The Golden Gate Bridge

Near U.S. 101, on the right when traveling north. Reported damaged.

22 ► California, Mono County, Lee Vining — The Tioga Pass Road — Constructed 1883 & 1910 - Commemorated 2002 —

On Tioga Pass Road (State Highway 120), on the right when traveling east.

23 ► California, Orange County, Tustin — Marine Corps Air Station Tustin — Blimp Hangars —

On Park Avenue at Victory Road, on the right when traveling south on Park Avenue.

24 ► California, Orange County, Yorba Linda — 40 — Irrigation in Orange County —

Near Santa Ana Canyon Road.

25 ► California, Sacramento County, Sacramento, "Old Sacramento" — Sacramento Water Works — Historic Civil Engineering Landmark —

On I street at Front Street, on the right when traveling west on I street.

26 ► California, San Bernardino County, Mentone — Henry Harbinson Sinclair — 1858-1914 —

On Mill Creek Road (California Route 38) 1 mile east of Bryant Street, on the right when traveling east.

27 ► California, San Mateo County, Burlingame — 100th Anniversary of the Crystal Springs Dam —

On Skyline Boulevard west of Crystal Springs Road when traveling south.

28 ► California, San Mateo County, Pescadero — 930 — Pigeon Point Lighthouse —

Near Pigeon Point Road near California Highway 1.

29 ► California, Santa Barbara County, Santa Barbara — Cold Spring Arch Bridge — Historic Civil Engineering Landmark — ASCE —

On Stagecoach Road near San Marcos Pass Road (California Route 154).

30 ► California, Santa Barbara County, Santa Barbara — Santa Barbara Mission Early Water Supply — Historic Civil Engineering Landmark —

Near Los Olivos Street north of Alameda Padre Serra, on the right when traveling north.

31 ► California, Yuba County, Camptonville — Lester Allen Pelton —

On Cleveland Avenue, on the right when traveling west.

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32 ► Colorado, La Plata County, Durango — Durango - Silverton Narrow Gauge Railroad —

On Main Avenue at 5th Street, on the right when traveling south on Main Avenue.

33 ► Colorado, Montezuma County, Cortez — Prehistoric Mesa Verde Reservoirs —

Near State Highway 10.

34 ► Colorado, Montezuma County, Mesa Verde National Park — Far View Reservoir —

Near State Highway 10, 1.3 miles south of Wetherill Mesa Road.

35 ► Florida, Collier County, Naples — Bay City Walking Dredge — National Historic Mechanical Engineering Landmark — 1924 —

Near Tamiami Trail East (U.S. 41) south of San Marco Road (County Route 92), on the right when traveling south.

36 ► Florida, Columbia County, High Springs — Bellamy Road — Florida Historic Civil Engineering Landmark —

Near Oleno Park Road near U.S. 441.

37 ► Florida, St. Johns County, St. Augustine, Historic District — Castillo de San Marcos — National Historic Civil Engineering Landmark —

On South Castillo Drive (State Road A1A) (Business U.S. 1) at Cuna Street, on the right when traveling north on South Castillo Drive (State Road A1A).

38 ► Georgia, Chatham County, Savannah, Historic District - North — City Plan of Savannah —

On W Congress Street near Bull Street, on the left when traveling east.

39 ► Georgia, Chatham County, Savannah, Historic District - North — Savannah Historic District —

On W. Bryan Street near Bull Street, on the left when traveling west.

40 ► Idaho, Kootenai County, Coeur d'Alene — The Mullan Road — Mullan Road Historical Site —

On Forest Road N 3098 near Interstate 90.

41 ► Illinois, Cook County, Chicago, The Loop District — Monument of the Millennium — Wastewater System —

42 ► Indiana, Franklin County, Metamora — Duck Creek Aqueduct —

On Pennington Rd, 0.2 miles east of Columbia St, on the left when traveling east.

43 ► Indiana, Marion County, Indianapolis, Mile Square — Historic National Road / Make History, Drive It — The Road That Built The Nation —

On West Washington Street at Senate Avenue, on the right when traveling west on West Washington Street.

44 ► Kentucky, Kenton County, Covington — John A. Roebling Bridge —

On Court Avenue (Kentucky Route 17) 0.1 miles north of East 3rd Street, on the right when traveling north.

45 ► Louisiana, Caddo Parish, Shreveport, Allendale-Lakeside — McNeill St. Pump Station — Historic Site — Shreveport —

On North Common Street, 0.5 miles north of Caddo Street.

46 ► Louisiana, Jefferson Parish, Elmwood — Huey P. Long Bridge, Louisiana — National Historic Civil Engineering Landmark —

On River Road (State Road 611-1) north of St. George Street, on the right when traveling north.

47 ► Louisiana, Plaquemines Parish, Buras — Eads Jetties —

On Herbert Harvey Drive, 0.5 miles south of Levee Road, on the left when traveling south.

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48 ► Louisiana, St. Charles Parish, Destrehan — Hale Boggs Bridge —

On River Road (State Highway 48) south of South Destrehan Avenue, on the left when traveling south.

49 ► Louisiana, St. Charles Parish, Luling — Hale Boggs Bridge —

On River Road (State Highway 18) north of Fre'Re Street, on the left when traveling north.

50 ► Louisiana, St. Tammany Parish, Mandeville — Lake Pontchartrain Causeway Bridge — National Historic Civil Engineering Landmark —

On North Causeway Boulevard, on the right when traveling south.

51 ► Maine, Cumberland County, Cape Elizabeth — Portland Head Light — National Historic Civil Engineering Landmark —

On Shore Road, on the right when traveling north.

52 ► Maine, Cumberland County, Harpswell — Bailey Island Bridge —

On Harpswell Island Road (Maine Route 24) on Harpswell Island Road.

53 ► Maine, Cumberland County, Naples — Songo Lock —

On Sebago Lake State Park Road, 1.9 miles east of U.S. 302, on the left when traveling north.

54 ► Maine, Cumberland County, Portland, East End — Portland Observatory, Portland, Maine — Built 1807 — National Historic Civil Engineering Landmark —

On Congress Street just north of Kellogg Street, on the right when traveling north.

55 ► Maine, Penobscot County, Bangor — Bangor Water District Thomas Hill Standpipe —

On Thomas Hill Road, 0.1 miles south of Ohio St., on the right when traveling south.

56 ► Maryland, Baltimore County, Relay — The Thomas Viaduct —

Near Railroad Avenue near Viaduct Avenue.

57 ► Maryland, Howard County, Savage — Bollman Iron Truss Bridge — 1869 —

On Foundry Street near Gorman Road, on the left when traveling north.

58 ► Maryland, Montgomery County, Cabin John — Building The Cabin John Bridge —

On MacArthur Boulevard, on the right when traveling east.

59 ► Maryland, Montgomery County, Dickerson — Springing Over the Monocacy / The Enduring Aqueduct — Chesapeake and Ohio Canal National Historical Park — National Park Service, U.S. Department of the Interior —

On Mouth of Monocacy Road, 1.3 miles west of Dickerson Road (Maryland Route 28), on the right when traveling west.

60 ► Maryland, Prince George's County, Fort Washington — Woodrow Wilson Memorial Bridge —

Near the Woodrow Wilson Bridge Trail (U.S. I-95) 0.8 miles west of Oxon Hill Road (State Route 414).

61 ► Massachusetts, Franklin County, Conway — Bardwells Ferry Bridge —

On Bardwells Ferry Road, 0.2 miles north of Wholey Road when traveling north.

62 ► Massachusetts, Franklin County, Gill, Riverside — 278 — Riverside Village Historic District — Town of Gill, Massachusetts —

On Riverview Drive just south of Pine Street, on the right when traveling south.

63 ► Massachusetts, Norfolk County, Canton — Canton Viaduct —

On Neponset Street.

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64 ► Massachusetts, Norfolk County, Quincy — The Granite Railway —

On Granite Rail Court, on the right when traveling east.

65 ► Massachusetts, Plymouth County, Brockton — Brockton Railroad Viaducts and Bridges — Massachusetts Historic Civil Engineering Landmark —

On Centre Street (Massachusetts Route 123) west of Commercial Street, on the right when traveling west.

66 ► Massachusetts, Suffolk County, Boston, Charlestown — Dry Dock 1 — Boston Nat’l Hist Pk — Charlestown Navy Yard —

Near 3rd Street, on the right when traveling south.

67 ► Michigan, Allegan County, Allegan — S549A — The Second Street Bridge —

On State Street (2nd Street) south of Brady Street, on the left when traveling south.

68 ► Michigan, Mackinac County, St. Ignace — Mackinac Bridge, Michigan — National Historic Civil Engineering Landmark —

Near Boulevard Drive.

69 ► Minnesota, Hennepin County, Minneapolis, Downtown East — Stone Arch Bridge - Great Northern Railway — National Historic Civil Engineering Landmark —

Near West River Parkway.

70 ► Minnesota, Hennepin County, Minneapolis, Downtown West — Stone Arch Bridge —

Near West River Parkway west of Portland Avenue South.

71 ► Minnesota, Hennepin County, Minneapolis, Saint Anthony Main — The Stone Arch Bridge — Saint Anthony Falls Heritage Trail —

72 ► Missouri, St. Louis, Downtown — The Gateway Arch — Jefferson National Expansion Memorial —

On North Leonor K. Sullivan Boulevard.

73 ► Missouri, St. Louis, Downtown West — Union Station —

On Market Street, on the right when traveling east.

74 ► Missouri, St. Louis, Forest Park — River Des Peres Sewage and Drainage Works —

On Clayton Avenue, 0.4 miles west of South Kingshighway, on the right when traveling west.

75 ► Missouri, St. Louis County, Kirkwood — Remembering the Achievements of James P. Kirkwood — March 27, 1807 - April 22, 1877 — Co-Founder (1852) and Second President (1867-1868) of the American Society of Civil Engineers —

Near West Argonne Drive, 0.1 miles west of South Kirkwood Road (U.S. 61/67), on the right when traveling east.

76 ► Montana, Chouteau County, Fort Benton — Mullan Wagon Road —

On Front Street near 17th Street, on the right when traveling north.

77 ► Nevada, Clark County, Boulder City — Civil Engineering Monument of the Millennium — Hoover Dam —

On U.S. 93, on the right when traveling west.

78 ► Nevada, Clark County, Boulder City — Hoover Dam —

On U.S. 93, on the right when traveling west.

79 ► Nevada, Storey County, Virginia City — 14 — Virginia & Gold Hill Water Company — Comstock Historical Marker No. 14 — 130 South B St., Virginia, City, NV —

On South B Street north of Taylor Street, on the right when traveling south.

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80 ► New Hampshire, Hillsborough County, Hillsborough — 203 — Stone Arch Bridges —

On West Main Street (New Hampshire Route 149) at U.S. 202, on the right when traveling east on West Main Street.

81 ► New Hampshire, Sullivan County, Cornish — 158 — Cornish-Windsor Bridge —

On Chase Road (SR 12A) at Bridge Street on Chase Road (SR 12A).

82 ► New Jersey, Passaic County, Paterson — Great Falls Raceway and Power System — National Historic Civil and Mechanical Engineering Landmark —

Near Spruce St..

83 ► New Jersey, Sussex County, Stanhope — Morris Canal — National Historic Civil Engineering Landmark —

Near Waterloo Valley Road, on the right when traveling east.

84 ► New Mexico, Sierra County, Truth or Consequences — Elephant Butte Dam —

On State Road 177 at State Road 51, on the left when traveling east on State Road 177.

85 ► New Mexico, Taos County, Dixon — Rio Grande Gaging Station — U.S. Geological Survey — Established 1889 —

On State Road 68, on the left when traveling south.

86 ► New York, Dutchess County, Poughkeepsie — Poughkeepsie-Highland Bridge — National Historic Civil Engineering Landmark —

87 ► New York, Erie County, Buffalo, First Ward — The Cargill Superior Elevator — The Industrial Heritage Trail —

On Fuhrmann Boulevard, 0.2 miles north of Ohio Street, on the left when traveling north.

88 ► New York, Kings County, Brooklyn, Fulton Ferry District — The Brooklyn Bridge — 1867 - 1883 —

On Brooklyn Bridge Expressway, on the right when traveling north.

89 ► New York, Kings County, Brooklyn, Fulton Ferry District — The Builders of the Bridge —

Near Brooklyn Bridge Promenade.

90 ► New York, Monroe County, Rochester, Downtown — Erie Canal — National Historic Civil Engineering Landmark —

On East Broad Street (New York State Route 31) 0.1 miles east of Exchange Blvd (Route 383), on the left when traveling east.

91 ► New York, Monroe County, Rochester, Downtown — Second Erie Canal Aqueduct —

On East Broad Street (New York State Route 31) 0.1 miles east of Exchange Blvd (New York State Route 383).

92 ► New York, New York County, Manhattan, Civic Center — The Rotunda —

On Centre Street, on the right when traveling south.

93 ► New York, New York County, Manhattan, Hudson Square — Holland Tunnel — National Historic Civil And Mechanical Engineering Landmark — Constructed 1920-1927 —

Near Varick Street at Watts Street, on the right when traveling south.

94 ► New York, New York County, Manhattan, Lenox Hill — Queensboro Bridge, New York — National Historic Civil Engineering Landmark — American Society of Civil Engineers, 1852 —

On East 60th Street south of Second Avenue, on the right when traveling east.

95 ► New York, New York County, Manhattan, Liberty Island — The New Colossus — A Sonnet to the Statue of Liberty —

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96 ► New York, New York County, Manhattan, Lower East Side — Williamsburg Bridge, New York — Completed: 1903 Designated: 2009 — National Historic Civil Engineering Landmark —

On Delancey Street at Clinton Street, in the median on Delancey Street.

97 ► New York, Niagara County, Lockport — 7 — Lock Construction —

On Pine Street.

98 ► New York, Niagara County, Lockport — Lockport Locks — Erected August 16, 1975 —

On W. Genesee Street, on the left.

99 ► New York, Niagara County, Niagara Falls — Bridges of Niagara — International Historic Civil Engineering Landmark —

100 ► New York, Orange County, West Point — U. S. Military Academy — National Historic Civil Engineering Landmark —

On Thayer Road, on the right when traveling north.

164 entries matched your criteria. The first 100 are listed above. The final 64 ⊳