Skip to main content

How Long Is The M26 In Miles?

by
Last updated on 6 min read

9.9 miles (15.9 km)

How many miles is the M26?

The M26 motorway spans roughly 9.9 miles (15.9 km)

Connecting the M20 at junction 3 to the M25 at junction 5, the M26 serves as a brief bypass for traffic moving between southeast London and the Kent coast. It first opened in 1980 and, for its entire run, carries primary‑route signage. (If you need the exact figure, see) Wikipedia for the official length. Honestly, it’s a handy little link.

When was M26 built?

The M26 was constructed in the late 1970s and opened to traffic in 1980

Construction kicked off in 1976, and the main carriageway was wrapped up by early 1980. That launch lined up with the tail‑end of the M20 and M25 projects, boosting regional links. Before the road could be opened, engineers performed thorough inspections of bridges and drainage systems. (In most cases, safety checks are rigorous.)

How many junctions are on the M26?

The M26 has a single junction, numbered 2A

Junction 2A is the sole direct interchange on the M26, linking drivers to the A20 for local trips. Its numbering mirrors the neighboring M20 junctions, preventing any duplication. (Just a heads‑up) motorists are advised to slow down to 30 mph when they reach the interchange. It’s a simple setup.

What is the longest motorway in the UK?

The M6 is the longest UK motorway at about 231 miles (370 km)

Stretching from Catthorpe—junction 19 on the M1—up to the Scottish border near Carlisle, the M6 weaves through key industrial zones like Birmingham and Manchester, as well as the north‑west energy corridor. (For the precise figure, check) Wikipedia. It’s a real backbone.

What’s the shortest motorway in England?

The A308(M) in Berkshire is England’s shortest motorway, measuring about 0.6 miles (1 km)

Linking junction 8/9 of the M4 with the A308, the A308(M) offers a quick high‑speed spur for local traffic. Even though it’s tiny, it meets full motorway standards—hard shoulders, clear signs, the whole lot. (Just a note) drivers need to watch for the abrupt switch back to a regular A‑road. It’s surprisingly well‑built for its size.

Why are there highways in England?

Highways provide high‑capacity routes that reduce congestion, support economic growth, and improve safety on major travel corridors

National Highways—formerly Highways England—oversees these strategic routes under the government’s Road Investment Strategy. In most cases they speed up freight movement, tie regional hubs together, and ease congestion on local streets. Maintenance is regular and follows strict safety protocols, such as routine roadside inspections and winter gritting. Honestly, they’re vital for the economy.

What is the longest stretch of motorway between junctions?

The longest uninterrupted stretch is 15.2 miles between junctions 8 and 9 on the M11

Running through Essex, this 15.2‑mile stretch between junctions 8 and 9 on the M11 provides a straight, high‑speed corridor for long‑distance drivers. Its design features a continuous hard shoulder and regular lay‑by spots where motorists can take a breather. (You can verify the figure on) Wikipedia. It’s a smooth ride.

Where does the M26 start and finish?

The M26 begins at Chevening (junction 3 of the M20) and ends at Addington (junction 5 of the M25)

Starting near Chevening, the western end of the M26 feeds into the A21, while its eastern terminus feeds straight onto the M25 orbital around London. This brief connector is handy for traffic looking to skirt central London. (Just a reminder) drivers need to keep to 70 mph, easing down to 50 mph near the A20 interchange. It’s a clever shortcut.

M26 Route information West end Chevening M25 motorway Junction 5 M20 motorway Junction 3 East end Addington

Where does the M25 start and end?

The M25 forms a 117‑mile orbital, starting at Dartford (south) and terminating at Thurrock (north)

The southern tip of the M25 kicks off at the Dartford Crossing’s southern approach, whereas the northern end meets the A1(M) close to the Thurrock side of the crossing. This orbital loops around Greater London, tying together key radial motorways like the M1, M3, M4 and M40. (For a full junction list, see) Wikipedia. It’s the backbone of London’s road network.

M25 South end Dartford (Dartford Crossing southern approach) J3 → M20 motorway J5 → M26 motorway J7 → M23 motorway J12 → M3 motorway J15 → M4 motorway J16 → M40 motorway J21 → M1 motorway J23 → A1(M) motorway J27 → M11 motorway North end Thurrock (Dartford Crossing northern approach) Location

Why is there no M7 motorway?

There is no M7 because the A7 corridor (Carlisle to Edinburgh) does not require a dedicated motorway relief route

Under the UK road‑numbering system, motorways are meant to relieve busy A‑roads; because the A7 already copes with traffic, a parallel M‑road never made sense. Historically, the numbering focused on London, which left gaps like the missing M7. Should demand ever rise, National Highways would evaluate a new designation. Honestly, it seems fine as is.

What is the steepest road in UK?

Hardknott Pass in the Lake District, with a maximum gradient of 1 in 4 (≈ 25 %), is the steepest road in the UK

Rosedale Chimney Bank in North Yorkshire matches that gradient but over a shorter distance. Both climbs attract cyclists and drivers chasing a challenge, yet they demand careful braking and low‑gear handling. In winter, the passes can turn icy, so carrying chains or using a winter‑ready vehicle is wise. (For the exact gradient, check) Wikipedia. It’s a thrill for the brave.

What is the longest straight road in the UK?

A section of the A15 between Scampton and the M180 is the longest straight stretch, extending over 16 miles (≈ 26 km)

Cutting across the Lincolnshire flatlands, this stretch gives drivers an almost endless view. As a vital freight corridor, it needs clear markings and regular resurfacing to stay safe. (Just a heads‑up) motorists ought to stay alert for fast‑moving traffic and the occasional wildlife crossing. It’s oddly soothing.

What is the busiest motorway in the world?

Interstate 405 (the San Diego Freeway) in Orange County, California, is the world’s busiest motorway, handling about 25,500 vehicles per hour during peak periods

That 1.5 km (0.9 mi) slice between Garden Grove Freeway and Seal Beach Boulevard sees the biggest hourly traffic jam. To ease congestion, officials have added high‑occupancy toll lanes and dynamic signal timing. (If you can, try alternate routes or travel off‑peak) to dodge the snarls. Wikipedia lists the numbers. It’s a nightmare during rush hour.

What counties in England have no motorways?

Cornwall, Dorset, Norfolk, Rutland, and Suffolk currently have no motorways

These counties lean on A‑roads and rural routes for their main traffic flows. The lack of motorways generally mirrors lower population density and limited demand for high‑capacity corridors. While future plans might bring bypasses, any new motorway would need a thorough environmental assessment. It’s a trade‑off between development and preservation.

  • Cornwall
  • Dorset
  • Norfolk
  • Rutland
  • Suffolk

Is the M1 the longest motorway?

No, the M1 is not the longest; it measures 193.5 miles (311.4 km), shorter than the M6

Stretching from London up to Leeds, the M1 serves as a major north‑south spine, yet the M6 outstrips it by almost 40 miles. Still, the M1’s length keeps it among the UK’s longest motorways, linking key industrial zones. (For the exact mileage, see) Wikipedia. It’s still pretty impressive.

M1 Length 193.5 mi (311.4 km) Existed 1959–present History Opened: 1959 Completed: 1999 Major junctions
Edited and fact-checked by the MeridianFacts editorial team.
Tom Bennett

Tom Bennett is a travel planning writer and former travel agent who has booked everything from weekend road trips to round-the-world itineraries. He lives in San Diego and writes practical travel guides that focus on what you actually need to know, not what looks good on Instagram.