BEHIND / THE BUILD
Behind the Build · Lagos · No. 03

The third Carter Bridge

Everyone knows Carter Bridge was built in 1901. Almost nobody has noticed that the thing built in 1901 was taken down, and that what replaced it was taken down too.

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Station 01 · The sign

You have crossed this without reading it.

There is a green sign on the approach that says MARINA · CARTER BRIDGE, and it has been telling you the truth and misleading you at the same time for as long as you have been driving under it.

The crossing is — the oldest permanent link between Lagos Island and the mainland. It is , Governor of the Colony of Lagos. Both of those facts are on every list of Lagos landmarks ever written.

The structure under your tyres is about fifty. That is on none of them.

1.525km
The length of the crossing now being demolished. Three lanes each way, Iddo to Idumota.
Station 02 · The span

The first one was built to get out of the way.

Steel and timber on piles, narrow enough to be crossed on foot and by bicycle, thrown across the channel between Lagos Island and Iddo at a moment when the alternative was a canoe.

And, according to every popular account of it, with a section in the middle that turned on a pivot so that vessels could pass through — the bridge stepping aside for the harbour it was built across.

The best line in the film, and we cannot stand it up

We built forty seconds of film around a bridge that opened. It is the moment the whole piece turns on, and we are not printing it here as a fact, because is not something we can attribute to anyone.

Every source that describes it is a retelling. Not one cites a photograph, a drawing, a public works record or a colonial dispatch. We searched the archive catalogues that hold Lagos material from this period, found images of the bridge, and found nothing naming a movable span.

It may well be true. A swing section on a harbour crossing in 1901 is entirely ordinary engineering. Ordinary is not the same as sourced, so this paragraph exists instead of the sentence we wanted to write.

Station 03 · The record

There have been three of them.

Ask how old Carter Bridge is and you will be told 1901, and then, if the person knows a little more, that it was rebuilt in the seventies. Two bridges, seventy years apart, one straight line.

That is not what the record says. A university library in the United States holds a photograph of a crowd at the opening of Carter Bridge, and its catalogue entry says the bridge . A second photograph in the same collection shows that bridge going up, and records that .

Two structures, thirty years apart, and then a third in the 1970s. The bridge you have been crossing your whole life is the third one.

Swipe the diagram →
1901 Steel and timber. Replaced. 1931 Opened 22 October. Replaced. 1970s Being demolished now. THREE CARTER BRIDGES · SAME NAME · SAME WATER
The crossing is 125 years old. No part of it is. The 1901 and 1931 structures are drawn from photographs held by Northwestern University's Herskovits Library of African Studies; the third is drawn with sections missing because that is its current condition. Drawn by Sponge Media
Hidden in plain sight

There have been three Carter Bridges, not two. The 1901 bridge was replaced by one opened on 22 October 1931, which was itself replaced in the early 1970s. The middle bridge has fallen out of the story almost entirely, and the evidence that it existed sits in a photograph archive four thousand miles from Lagos.

Those photographs are the strongest evidence on this page and you cannot see them here. The library restricts redistribution and commercial use, which is its right and — given how colonial-era images of West Africa were collected — a reasonable position. A request for editorial permission is being prepared. If it is granted, this page changes and the correction is logged at the foot of it.

The name is the only continuous part.
Working line — Sponge Media
Station 04 · The crossing

Why anybody bridged this water at all.

Lagos Island is an island. For most of its history the way off it was a boat, and the way goods left it was a boat, and that put a hard ceiling on how much city could happen there.

The bridge did not cross to the mainland. It — a second island, from which the mainland was another crossing again. What it joined the island to was the point where the railway ended and the cargo was waiting.

That is the whole argument for it. Not commuting. Freight.

What grew on the far side is the answer to why it mattered. Iddo, Ebute Metta, and eventually a mainland holding most of the people who work on the island. Every crossing built since — the Eko, the Third Mainland, the fourth now under discussion — is a variation on the sentence this one wrote first.

Station 05 · The decision

Who is taking it down, and who was warned.

On 30 April 2026 the Federal Executive Council approved . The replacement runs 1.93km against the present 1.525km, adds a flyover ramp, and carries .

The reason given is structural. The minister said the underwater piles and pile caps had , worsening at what he called a geometrical progression.

₦548.98bn
Approved by the Federal Executive Council on 30 April 2026 for the fourth Carter Bridge.
The part that does not flatter anyone

The assessments behind this decision were carried out in 2013, in 2019, and again recently — and that last review, by the minister's own account, . Julius Berger helped establish that the bridge could not be saved, then bid for the work to replace it, and lost to a Chinese contractor.

So the finding is not that a bridge suddenly failed. It is that it was surveyed, restricted, patched and driven over for more than a decade while every assessment reached the same conclusion.

And at the same meeting, the same council approved . Two bridges over the same lagoon, decided on the same afternoon. One is demolished and rebuilt for ₦549bn. The other is patched underwater for about four and a half per cent of that.

We have asked what the 2013 and 2019 assessments recommended, and what was done about them. That request is open.

The fourth bridge will carry the same name. In a hundred years somebody will say Carter Bridge was built in 1901, and they will be right, and they will be standing on the fourth one.

Watch

You cross this bridge. But do you know its secret?

Forty seconds. Hidden in Plain Sight, the third film in the series. It ends on the swing span — the claim this page holds out.

Made and paid for by Sponge Media. No sponsor on this film or this page.

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Where all of this came from

Every claim in the piece, with its source and its status. Nothing hidden in a footnote, including the things we haven't nailed down yet.

01
125 years oldno link yet
Widely reported; no primary record located · Open
Every account of the crossing dates it to 1901. We have not found the underlying record — a public works report, a colonial dispatch, an engineering account. The date is almost certainly right and we cannot yet point at where it comes from.
02
named for Sir Gilbert Thomas Carterno link yet
The Guardian (Nigeria) · 15 January 2017
"The British were once here", 15 January 2017. Carter was Governor of the Colony of Lagos.
https://guardian.ng/opinion/the-british-were-once-here/ ↗
03
₦548.98 billion to demolish and rebuild itverified
Premium Times, reporting by Emmanuel Agbo · 30 April 2026
The Federal Executive Council approved the demolition and reconstruction of Carter Bridge at ₦548.98bn. Announced by the Minister of Works, Dave Umahi, after the FEC meeting in Abuja. The contract went to China Civil Engineering Construction Corporation after competitive bidding involving Julius Berger, CBC and China Harbour High Tech.
https://www.premiumtimesng.com/news/top-news/876180-federal-govt-approves-n548-98bn-to-demolish-rebuild-carter-bridge-in-lagos.html ↗
04
the span that turned aside for shipsunverified
Not sourced · Open
Popular accounts describe a section of the 1901 bridge pivoting to let vessels through. Every version we can find is a retelling. None cites a photograph, a drawing, a public works record or a colonial dispatch, and one of the more confident accounts is an AI-generated encyclopedia.
05
opened on 22 October 1931verified
Northwestern University Libraries — Melville J. Herskovits Library of African Studies · Accessed 9 September 2026
Catalogue entry for a photograph of the crowd at the opening of Carter Bridge, Lagos: the bridge opened on 22 October 1931 and replaced the original bridge of 1901.
https://dc.library.northwestern.edu/items/d2a7b517-4715-40be-abcb-4ca983f68afa ↗
06
that bridge was itself replaced in the early 1970sverified
Northwestern University Libraries — Melville J. Herskovits Library of African Studies · Accessed 9 September 2026
Catalogue entry for "Carter Bridge, Lagos, under construction, viewed from a boat" (1931): "This bridge, opened on October 22, 1931, replaced the original bridge of 1901. (The 1901 bridge is visible behind the new bridge.) The 1931 bridge was itself replaced in the early 1970s."
https://dc.library.northwestern.edu/items/b1c86402-2895-4782-9500-02ecbbe744ea ↗
07
crossed to Iddo, not to the mainlandno link yet
This Day (Nigeria), via secondary citation · 23 April 2003
"Lagos Bridges: Another Disaster Waiting to Happen", 23 April 2003. The bridge runs from Iddo to the Idumota area of Lagos Island.
08
two navigational waterways of 105 metres eachverified
Premium Times, quoting Dave Umahi · 30 April 2026
The replacement runs 1.93km against the present 1.525km, adding a flyover ramp, and includes dual navigational waterways measuring 105 metres each.
https://www.premiumtimesng.com/news/top-news/876180-federal-govt-approves-n548-98bn-to-demolish-rebuild-carter-bridge-in-lagos.html ↗
09
deteriorated beyond repairverified
Dave Umahi, Minister of Works, via Premium Times · 30 April 2026
Underwater piles and pile caps had deteriorated beyond repair, at what the minister described as a "geometrical progression". "All the technical experts all over the country, and even internationally, all agreed that we could not redeem Carter Bridge, and it has to be completely demolished and rebuilt."
https://www.premiumtimesng.com/news/top-news/876180-federal-govt-approves-n548-98bn-to-demolish-rebuild-carter-bridge-in-lagos.html ↗
10
involved Julius Bergerverified
Dave Umahi, Minister of Works, via Premium Times · 30 April 2026
Investigations were conducted in 2013 and 2019, "as well as a more recent review under the current administration involving Julius Berger", all reaching the same conclusion. Julius Berger then bid for the reconstruction and lost to CCECC.
https://www.premiumtimesng.com/news/top-news/876180-federal-govt-approves-n548-98bn-to-demolish-rebuild-carter-bridge-in-lagos.html ↗
11
₦24.89 billion for the Third Mainland Bridgeverified
Premium Times · 30 April 2026
At the same Federal Executive Council meeting, ₦24.89bn was approved for rehabilitation of the underwater components of the Third Mainland Bridge, to be handled by Julius Berger, as part of projects scheduled for commissioning ahead of the President's third anniversary on 29 May.
https://www.premiumtimesng.com/news/top-news/876180-federal-govt-approves-n548-98bn-to-demolish-rebuild-carter-bridge-in-lagos.html ↗
Reporting

Sponge Media

Editorial direction

Dayo Elegbe

Design and build

Sponge Media

Funding

Sponge Media. No sponsor.

Corrections and changes
  • 9 Sep 2026 — First published.
  • 9 Sep 2026 — The 1931 bridge added to the record after catalogue entries at Northwestern University Libraries showed a second structure between the 1901 bridge and the present one.
  • 9 Sep 2026 — The swing span shown in our film is held out of this text pending a source.