Engineering

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Steel railroad bridge across a river
Baring Cross Bridge
The Baring Cross Bridge is located in downtown Little Rock (Pulaski County) over the Arkansas River at river m...
distant elevated view of dam holding back water and the dry spillway and embankment
Beaver Dam and Lake
Beaver Lake was created by Beaver Dam in Carroll County. The lake—technically a reservoir since it was creat...
lock and dam on river with pedestrian bridge winding over it and houses, trees on hill in background
Big Dam Bridge
The Big Dam Bridge, which opened to the public in 2006, is a walking, running, and bicycling bridge constructe...
Concrete dam and buildings with power station on water
Blakely Mountain Dam
aka: Blakely Dam
aka: Lake Ouachita
Blakely Mountain Dam, located approximately ten miles northwest of ...
Lake with boats tied to shore with trees and mountains in the distance and blue skies
Blue Mountain Dam and Lake
Blue Mountain Lake is a manmade lake, or reservoir, on Petit Jean River in Logan County. A portion of the lake...
Concrete tunnel entrances on highway
Bobby Hopper Tunnel
Arkansas has seven railroad tunnels but only one highway tunnel. Named for the Arkansas Highway Commission dir...
Aerial view of steel truss bridge and arched truss bridge over river with trees and mountains in the background
Bridges
At the time Arkansas became a territory, most water crossings were fords. When travelers came to a body of wat...
Metal bridge over river; city in background
Broadway Bridge
The Broadway Bridge was originally constructed in 1923 as a vehicular structure and replaced in 2017; it is on...
Stone monument with Masonic symbols and funereal inscription
Robert Brownlee (1813–1897)
Robert Brownlee was a Scottish stonemason who lived in Little Rock (Pulaski County) from 1837 to 1849. He help...
elevated view of sharply curving river and dam
Bull Shoals Dam and Lake
Bull Shoals Dam site is located on the White River about ten miles west of Mountain Home (Baxter County), wher...
Concrete dam with water rushing over it and lake
Carpenter Dam
aka: Lake Hamilton
Carpenter Dam is the second of three dams constructed along the Oua...
bridge with several arches over river
Cotter Bridge
aka: R. M. Ruthven Bridge
Completed in 1930, the R. M. Ruthven Bridge, originally named and o...
Bald white man with glasses smiling in suit and tie
Wallace Henry Coulter (1913–1998)
Wallace Henry Coulter was an engineer, inventor, and entrepreneur who was co-founder and chairman of Coulter C...
White man smiling in U.S. Navy uniform
John Storrs Cross (1904–1976)
John Storrs Cross became a national and international expert in all types of electronic communication as a mem...
Lake with inlets and trees along the shoreline
DeGray Dam and Lake
DeGray Dam, located about eight miles northwest of Arkadelphia (Clark County), impounds the 13,400-acre DeGray...
Charles Sumner Duke (1879–1952)
A trailblazing African-American architect and engineer, Charles Sumner Duke not only designed unique public st...
Older African-American man in suit and bow tie
David L. Evans (1939–)
David L. Evans worked as an engineer on the Saturn rockets and Apollo moon landing missions but became best kn...
Don Fess (1915–1999)
Don Fess of Magnolia (Columbia County) built and patented a prototype engine that saved energy by using rotati...
Lookout tower with stone foundation and pyramid shaped roof with stairs
Forest Fire Lookouts
aka: Fire Towers
Fire towers (also known as lookouts) go back thousands of years. Th...
Older white man with glasses in suit and tie
Neal Bryant Garver (1877–1969)
Neal Bryant Garver arrived in Little Rock (Pulaski County) in 1918 to help provide engineering services for th...
William Lee Gerig (1866–1944)
William Lee Gerig was a civil engineer working on railroads and dams in both the United States and abroad, inc...
Older white man in tuxedo standing and smiling with group of white women in hallway
Mary Lowe Good (1931–2019)
Mary Lowe Good was a renowned chemist, industrial innovator, professor, and government leader. Good was the fi...
Concrete dam with lake and countryside in the distance
Greers Ferry Dam and Lake
Greers Ferry Dam on the Little Red River, approximately three miles north of Heber Springs (Cleburne County), ...
two white men stand next to small white truck
Handywagon
The Handywagon, built in 1964 for the Arkansas Louisiana Gas Company (Arkla), was intended as an economical ve...
Concrete dam with water rushing over it and lake
Hydroelectricity
Hydroelectric power is the electricity generated by the gravitational force of falling or flowing water throug...
Steel arch foot bridge over river with elevator and stairs and small walking bridge leading up to it
Junction Bridge
The Junction Bridge is a lift-span bridge crossing the Arkansas River between downtown Little Rock (Pulaski Co...
Red and white radio tower against blue skies
KATV Tower
The KATV tower was a 2,000-foot-tall (609.6 meters) television antenna that stood just north of Redfield (Jeff...
White man with a mustache in hat and glasses
Paul Wilbur Klipsch (1904–2002)
Paul Klipsch was an American engineer and audio pioneer whose work in acoustics gave rise to speaker technolog...
Weathered "Laconia Circle Mississippi Township" historical marker sign
Laconia Circle Levee
The Laconia Circle Levee is situated in the southeast corner of Mississippi Township in Desha County. The leve...
Looking across highway bridge towards oncoming traffic and city buildings in background
Main Street Bridge (Little Rock–North Little Rock)
The Main Street Bridge was originally constructed in 1924 as a vehicular structure, replaced in 1973, and alte...
Three large pipes stretching across flat ground and acring downward into water with people watching from fence on both sides
Marked Tree Siphons
Constructed in 1939 by the Memphis District Corps of Engineers for Drainage District Number Seven of Poinsett ...
steel bridge crossing river with river bank in foreground
Memphis-Arkansas Memorial Bridge
The Memphis-Arkansas Memorial Bridge on Interstate Highway 55 connects Arkansas with Tennessee at Memphis. Sin...