|Store Street Aqueduct|
Store Street Aqueduct at the canal level
|OS grid reference|
|Maintained by||Canal & River Trust|
|Heritage status||Grade II*|
|Total length||220 feet (67.1 m)|
|Width||17 feet (5.2 m)|
|No. of spans||One|
The Store Street Aqueduct in central Manchester, England, was built in 1798 by Benjamin Outram on the Ashton Canal. A Grade II* listed buildingit is built on a skew of 45° across Store Street, and is believed to be the first major aqueduct of its kind in Great Britain and the oldest still in use today.
Manchester is a city and metropolitan borough in Greater Manchester, England, with a population of 545,500 as of 2017. It lies within the United Kingdom's third-most populous metropolitan area, with a population of 3.2 million. It is fringed by the Cheshire Plain to the south, the Pennines to the north and east, and an arc of towns with which it forms a continuous conurbation. The local authority is Manchester City Council.
Benjamin Outram was an English civil engineer, surveyor and industrialist. He was a pioneer in the building of canals and tramways.
The Ashton Canal is a canal in Greater Manchester, England.
The aqueduct was constructed to cross the Shooters Brook. It is built of stone with large voussoirs and retaining walls of coursed masonry and is 7.4 metres (24 ft) wide with triangular buttresses. The brook was culverted in about 1805 and Store Street was built over it. The canal is about 4.6 metres (15 ft) wide and 1.45 metres (4 ft 9 in) deep. The arch has a 7.6-metre (25 ft) square span and a 10.5-metre (34 ft) skew span rising 2.75 metres (9 ft 0 in) above road level.
Navigable aqueducts are bridge structures that carry navigable waterway canals over other rivers, valleys, railways or roads. They are primarily distinguished by their size, carrying a larger cross-section of water than most water-supply aqueducts. Although Roman aqueducts were sometimes used for transport, aqueducts were not generally used until the 17th century when the problems of summit level canals had been solved and modern canal systems were developed. The 662-metre long steel Briare aqueduct carrying the Canal latéral à la Loire over the River Loire was built in 1896. It was ranked as the longest navigable aqueduct in the world for more than a century, until the Magdeburg Water Bridge in Germany took the title in the early 21st century.
A voussoir is a wedge-shaped element, typically a stone, which is used in building an arch or vault.
A buttress is an architectural structure built against or projecting from a wall which serves to support or reinforce the wall. Buttresses are fairly common on more ancient buildings, as a means of providing support to act against the lateral (sideways) forces arising out of the roof structures that lack adequate bracing.
Generally, where a canal (or later a railway) crossed a road, or vice versa, the road would be diverted to cross at right angles. It had not always been acceptable but attempts to build masonry arch bridges at an angle, or "skew" of greater than about 15 degrees, had proved unsatisfactory. The method up to that time had been to build the voussoir arch with the stone course work parallel to the abutments. This transmitted the load outward from the crown in a straight line to the foundations, parallel to the faces of the arch. If a skew was attempted, it threw the lines of force outside the abutments, leading to weakness in the structure.
An arch bridge is a bridge with abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side. A viaduct may be made from a series of arches, although other more economical structures are typically used today.
In engineering, abutment refers to the substructure at the ends of a bridge span or dam whereon the structure's superstructure rests or contacts. Single-span bridges have abutments at each end which provide vertical and lateral support for the bridge, as well as acting as retaining walls to resist lateral movement of the earthen fill of the bridge approach. Multi-span bridges require piers to support ends of spans unsupported by abutments. Dam abutments are generally either side of a valley or gorge but may be artificial in order to support arch dams such as Kurobe Dam in Japan.
William Chapman had partially solved the problem in 1787when building bridges for the Kildare Canal, the first being the Finlay Bridge near Naas. The Kildare was part of the Grand Canal Company, for William Jessop had been the engineer. Jessop would no doubt have discussed it with Outram, his partner, and he experimented with the idea on the Rochdale Canal. Examples are Gorrell's Lane and March Barn road bridges, though it is possible that they were built later. The method used was to build timber falsework parallel to the proposed arches. Planks were laid on the falsework parallel to the abutments. The position of the courses at the crown were marked out, then those across the remainder of the arch.
William Chapman was an English engineer. Born in Whitby, he worked on the construction of the Old and Humber Docks in Hull, as well as many drainage and canal projects. He is credited with the invention of the bogie and articulation for rail vehicles.
Naas is the county town of County Kildare in Ireland. In 2016, it had a population of 21,393, making it the second largest town in County Kildare after Newbridge.
William Jessop was an English civil engineer, best known for his work on canals, harbours and early railways in the late 18th and early 19th centuries.
Although the aqueduct still exists, and is structurally sound, years of neglect led to water leakage through the joints, and the spiral construction can no longer be seen, the surface of the intrados having been rendered.
Later railway engineers improved on the system, producing what became known as helicoidal construction that became the norm in English skew bridge building. An exact solution to the problem was determined in the form of the French, or orthogonal, design. However this was complicated and expensive to build.
A skew arch is a method of construction that enables an arch bridge to span an obstacle at some angle other than a right angle. This results in the faces of the arch not being perpendicular to its abutments and its plan view being a parallelogram, rather than the rectangle that is the plan view of a regular, or "square" arch.
The Pontcysyllte Aqueduct is a navigable aqueduct that carries the Llangollen Canal across the River Dee in the Vale of Llangollen in north east Wales. The 18-arched stone and cast iron structure is for use by narrowboats and was completed in 1805 having taken ten years to design and build. It is the longest aqueduct in Great Britain and the highest canal aqueduct in the world.
The Huddersfield Narrow Canal is an inland waterway in northern England. It runs just under 20 miles (32 km) from Lock 1E at the rear of the University of Huddersfield campus, near Aspley Basin in Huddersfield, to the junction with the Ashton Canal at Whitelands Basin in Ashton-under-Lyne. It crosses the Pennines by means of 74 locks and the Standedge Tunnel.
The Cromford Canal ran 14.5 miles from Cromford to the Erewash Canal in Derbyshire, England with a branch to Pinxton. Built by William Jessop with the assistance of Benjamin Outram, its alignment included four tunnels and 14 locks.
Marple Aqueduct at Marple, Greater Manchester, in north-west England was built to carry the lower level of the Peak Forest Canal across a length of the River Mersey that was renamed the River Goyt in 1896.
Josias Jessop (1781–1826) was a noted canal engineer, and second son of William Jessop, one of the great canal engineers of the late eighteenth and early nineteenth centuries. He was trained by his father, and worked under him on his early projects, but proved his abilities during the construction of Bristol harbour. He became an independent consulting engineer from 1811. He died fourteen years later, a little before he reached the age of 45.
The Seventh Street Improvement Arches are a double-arched masonry highway bridge that formerly spanned the St. Paul and Duluth Railroad tracks in St. Paul, Minnesota. The Seventh Street Improvement Arches are historically significant for its rarity and the technically demanding nature of its skewed, helicoidal spiral, stone-arch design. The bridge is one of the few of its type in the United States, and is the only known bridge of its type in Minnesota. It was built in 1883-1884 by Michael O’Brien and McArthur Brothers of Chicago and was designed by William A. Truesdell. The bridge was listed on the National Register of Historic Places in 1989 and on the American Society of Civil Engineers Historic Civil Engineering Landmarks in 2000.
Cosgrove aqueduct is a navigable cast iron trough navigable aqueduct that carries the Grand Union Canal over the River Great Ouse, on the borders between Buckinghamshire and Northamptonshire at the northwest margin of Milton Keynes in England. The present structure was built in 1811, to replace a previous brick structure that had failed. When the present structure was erected, it was known as the "Iron Trunk". The structure has two cast iron trough spans, with a single central masonry pier. The abutments were constructed in masonry but have been refaced in brick during the twentieth century. The trough is 15 feet (4.6 m) wide, 6 ft 6 in (1.98 m) deep, with a total length of 101 feet (31 m). The canal surface is about 40 feet (12 m) above the surface of the river. There are large approach earthworks about 36 feet (11 m) high above the valley floor and 150 feet (46 m) wide, with a total length of half a mile (800m).
Laigh Milton Viaduct is a railway viaduct near Laigh Milton mill to the west of Gatehead in East Ayrshire, Scotland, about 5 miles (8 km) west of Kilmarnock. It is probably the world's earliest surviving railway viaduct on a public railway, and the earliest known survivor of a type of multi-span railway structure subsequently adopted universally.
The Colorado Street Bridge also known as Bridge L-8803 is a masonry and brick arch bridge in Saint Paul, Minnesota's West Side neighborhood. It is 58 feet (18 m) wide and consists of a single oblique span of 70 feet 6 inches (21.49 m) that was built with the arch courses running parallel to the abutments, leading to a weaker structure than other skew arch construction methods, known as a false skew arch. It was designed in 1888 by Andreas W. Munster of the Saint Paul Engineer's Office and is now restricted to pedestrian traffic.
The Bridge near Limyra is a late Roman bridge in Lycia, in modern south-west Turkey, and one of the oldest segmented arch bridges in the world. Located near the ancient city of Limyra, it is the largest civil engineering structure of antiquity in the region, spanning the Alakır Çayı river over a length of 360 m (1,181.1 ft) on 26 segmental arches. These arches, with a span-to-rise ratio of 5.3:1, give the bridge an unusually flat profile, and were unsurpassed as an architectural achievement until the late Middle Ages. Today, the structure is largely buried by river sediments and surrounded by greenhouses. Despite its unique features, the bridge remains relatively unknown, and only in the 1970s did researchers from the Istanbul branch of the German Archaeological Institute carry out field examinations on the site.
Barton Road Swing Bridge is a swing bridge for road traffic in Greater Manchester that crosses the Manchester Ship Canal between Trafford Park in the Metropolitan Borough of Trafford to Barton-upon-Irwell in the City of Salford. The bridge is a Grade II listed building, and is part of a surrounding conservation area. It runs parallel to the Barton Swing Aqueduct which carries the Bridgewater Canal. The bridge opens regularly for traffic along the Manchester Ship Canal, which can cause delays for road traffic.
Swin Bridge is the local name for a skew arch bridge in County Durham. It was built in 1830 for the Haggerleases branch of the Stockton and Darlington Railway, crossing the River Gaunless at Cockfield. It is important as an early example of the masonry arch skew bridge, and the first used to carry a railway.