Civil and water works

Puente de la Mujer

Puente de la Mujer (Spanish for "Woman's Bridge") is a cable-stayed swing footbridge over Dock 3 of Puerto Madero, Buenos Aires, designed by Santiago Calatrava and inaugurated in 2001.

Puente de Reparacea (Erreparazea): medieval single-arch stone bridge over the river Bidasoa at Oieregi, Bertizarana, Navarra, Spain; 22 m span, hump-backed profile, possibly Roman origin, declared Bien de Interés Cultural in 2009.

Puente del Bibey

Puente del Bibey (Ponte Bibei), a Roman three-arch granite bridge over the river Bibei between A Pobra de Trives (Ourense) and Quiroga (Lugo), Spain, built on the Via Nova, traditionally under Trajan, still carrying road OU-636 and declared a monument in 1931.

Oct 20, 2026

Puente Mayor del Tormes

Puente Mayor del Tormes (Puente Romano), Salamanca's Roman bridge of the 1st century AD on the Vía de la Plata: 26 arches, 15 Roman, about 350 m long, pedestrian since 1973.

Puente Nuevo

The Puente Nuevo ("New Bridge") is an 18th-century masonry bridge in Ronda, Spain, spanning the 90-meter-deep Tajo gorge to link the old town with the Mercadillo district.

Puente romano de Alconetar

Puente romano de Alconetar (Puente de Mantible): ruined Roman bridge over the Tajo at Garrovillas de Alconétar, Cáceres, on the Vía de la Plata; segmental-arch bridge of the 1st-2nd century AD, relocated stone by stone in 1969 when the Alcántara reservoir flooded its site.

Puente sobre el Arroyo Rabanales

Puente sobre el Arroyo Rabanales, a Roman-origin five-arch bridge over the Arroyo Rabanales at Las Quemadas, Córdoba, Spain, on the Via Augusta; carried the N-IV road until 1928, now abandoned and deteriorated.

Pulaski Skyway

The Pulaski Skyway, officially the General Pulaski Skyway, is a 3.5-mile elevated highway in New Jersey carrying U.S. Route 1&9 between Jersey City and Newark, opened in 1932.

Pulteney Bridge

Pulteney Bridge is a shop-lined stone bridge over the River Avon in Bath, England, designed by Robert Adam and built between 1769 and 1774 for William Johnstone Pulteney.

Pumping station

A pumping station, also called a pump station or pump house, houses pumps that move water, sewage, or other liquids between elevations or pressure zones.

Punakha Suspension Bridge

The Punakha Suspension Bridge is a pedestrian footbridge crossing the Pho Chhu river below Punakha Dzong in Bhutan, built in 1994 and described as the country's longest suspension bridge.

Punjab Canal Colonies

The Punjab Canal Colonies were British state-run schemes that irrigated wasteland in western Punjab and allotted it to peasant colonists, with nine colonies built between 1885 and 1940.

Puquios

Puquios, from Quechua pukyu meaning spring, are subterranean filtration galleries in the Nasca valleys of southern Peru that tap the water table and still irrigate fields today.

Purified water

Purified water, also called DI water or pure water, is water from any source treated to remove chemicals, dissolved solids, and microbes to a defined standard.

Pyrmont Bridge

Pyrmont Bridge is an electric swing bridge of 1902 crossing Darling Harbour in Sydney, designed by Percy Allan and one of the world's oldest surviving electrically operated swing bridges.

Oct 22, 2026

Q'eswachaka Bridge

Q'eswachaka is a rope suspension bridge over the Apurímac River in Cusco, Peru, rebuilt each year with plant fiber using Inca techniques, recognized by UNESCO in 2013.

Qanat

A qanat (قنات), also called karez, is a gently sloping underground canal of ancient Iranian origin that taps an aquifer and carries water by gravity alone.

Quabbin Reservoir

Quabbin Reservoir is a man-made drinking water reservoir in central Massachusetts, formed by damming the Swift River Valley between 1939 and 1946 to supply metropolitan Boston.

Quantity surveying

Quantity surveying is the construction profession concerned with measuring building work and managing costs, practiced by quantity surveyors on behalf of contractors and building owners.

Quay wall

A quay wall is a vertical waterfront retaining structure along which ships berth, retaining the ground behind a berth line so cargo and passengers can be loaded and discharged.

Quebec Bridge

The Quebec Bridge (Pont de Québec) is a steel cantilever bridge carrying road, rail, and pedestrian traffic across the St. Lawrence River between Québec City and Lévis, completed in 1917.

Queensboro Bridge

The Queensboro Bridge, officially the Ed Koch Queensboro Bridge and also known as the 59th Street Bridge, is a double-deck cantilever bridge opened in 1909 that carries 59th Street between Manhattan and Queens.

Queensferry Crossing

The Queensferry Crossing, also known as the Second Forth Road Bridge, is a three-tower cable-stayed road bridge over the Firth of Forth in Scotland, opened in 2017.

R. C. Harris Water Treatment Plant

The R. C. Harris Water Treatment Plant, also known as the R. C. Harris Filtration Plant, is Toronto's largest drinking water plant, opened in 1941 and nicknamed "The Palace of Purification" for its Art Deco architecture.

R. Shankar Nair

R. Shankar Nair is a Chicago-based structural and civil engineer elected to the National Academy of Engineering in 2005 for his design of innovative bridges and building structures.

Radial gate

The radial gate, also called the Tainter gate, is a dam spillway gate with a curved upstream face that rotates on a horizontal trunnion to control water flow.

Railway bridge failures

A railway bridge failure is the loss of structural function of a bridge carrying rail traffic, caused by flood scour, fatigue cracks, collisions, and material degradation.

Railway bridges and viaducts by country

Railway bridges and viaducts by country is a country-by-country survey of notable rail bridges, from the record 1,408 m Yavuz Sultan Selim span to the world's highest bridges in China.

Railway bridges of North American Class I railroads

The railway bridges of North American Class I railroads are privately owned bridges inspected at least annually under federal rules; CSX reports more than 13,800 and CN 7,250.