Low Bridge Map — Japan
There are 4,099 recorded height restrictions on roads in Japan — bridges, tunnels, underpasses and height barriers. The lowest clearance a road vehicle could pass is 2.00 m — anything tagged lower is a gate or a barrier — and 1,200 restrictions are under 2.5 m. This map shows all of them, and the data behind it is rebuilt every week.
The map
The lowest clearances in Japan
The 100 lowest signed restrictions, lowest first. Every one of the 4,099 is on the map above.
| Location | Height | Type | Road | Region |
|---|---|---|---|---|
| 天神地下街北駐車場入口 · Fukuoka | 2.00 m | restriction | — | — |
| 天神地下街南駐車場入口 · Fukuoka | 2.00 m | restriction | — | — |
| 竹内街道 · Taishi | 2.00 m | restriction | — | Minamikawachi County |
| 竹内街道 · Taishi | 2.00 m | restriction | — | Minamikawachi County |
| タイムズ · Tokorozawa | 2.00 m | restriction | — | — |
| Daigo Otsu Line · Kyoto | 2.00 m | restriction | — | — |
| エクセルみなみ駐車場 · Mito | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Sakagura-dori · Nishinomiya | 2.00 m | restriction | — | — |
| 西１０３ · Nishinomiya | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Sanjo Street · Kyoto | 2.00 m | restriction | — | — |
| 本町駐車場 · Osaka | 2.00 m | restriction | — | — |
| Nagaokakyo | 2.00 m | restriction | — | — |
| NTTル・パルク日本橋二丁目第1駐車場 · Chuo | 2.00 m | restriction | — | — |
| 江戸・もみじ通り · Chuo | 2.00 m | restriction | — | — |
| Takamatsu | 2.00 m | restriction | — | — |
| Takamatsu | 2.00 m | restriction | — | — |
| 荏田商店街 · Yokohama | 2.00 m | restriction | — | — |
| Kiso | 2.00 m | restriction | — | Kiso District |
| 横浜信用金庫専用駐車場 · Yokohama | 2.00 m | restriction | — | — |
| Yaesu Route · Chiyoda | 2.00 m | restriction | — | — |
| Myoshinji michi Road · Kyoto | 2.00 m | restriction | — | — |
| 商工会議所駐車場 · Kakogawa | 2.00 m | restriction | — | — |
| 大覺寺橋 · Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Aburakake street · Kyoto | 2.00 m | restriction | — | — |
| Keihan-kokudo · Yawata | 2.00 m | restriction | — | — |
| Narita-kaido · Narita | 2.00 m | restriction | — | — |
| Otsu Nango Uji Line · Uji | 2.00 m | restriction | — | — |
| 上板橋通 · Kyoto | 2.00 m | restriction | — | — |
| MOA 4th street · Shinjuku | 2.00 m | restriction | U | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| Kyoto | 2.00 m | restriction | — | — |
| 管理用通路 · Kyoto | 2.00 m | restriction | — | — |
| 管理用通路 · Kyoto | 2.00 m | restriction | — | — |
| 管理用通路 · Kyoto | 2.00 m | restriction | — | — |
| Suita | 2.00 m | restriction | — | — |
| Takinoue | 2.00 m | restriction | — | Hokkaido Region |
| パーキング南山手8番館 · Nagasaki | 2.00 m | restriction | — | — |
| Ritto | 2.00 m | barrier | — | — |
| Ritto | 2.00 m | barrier | — | — |
| Ritto | 2.00 m | barrier | — | — |
| タイムズ · Osaka | 2.00 m | restriction | — | — |
| Kumiyama | 2.00 m | restriction | — | Kuse County |
| Hiroshima | 2.00 m | restriction | — | — |
| 向洋４号線 · Kobe | 2.00 m | restriction | — | — |
| Inner Ring · Nagoya | 2.00 m | restriction | — | — |
| 六甲アイランド南側臨港道路 · Kobe | 2.00 m | restriction | — | — |
| Inazawa | 2.00 m | restriction | — | — |
| Higashi Hiroshima | 2.00 m | tunnel | — | — |
| 三井のリパーク · Setagaya | 2.00 m | restriction | — | — |
| Inazawa | 2.00 m | restriction | — | — |
| Mikuni Highway · Uonuma | 2.00 m | tunnel | — | — |
| Akita | 2.00 m | tunnel | — | — |
| Tanabe | 2.00 m | tunnel | — | — |
| Tanabe | 2.00 m | tunnel | — | — |
| Gyoda | 2.00 m | tunnel | — | — |
| Kuki | 2.00 m | tunnel | — | — |
| Kawasaki-kaido Ave. · Tama | 2.00 m | restriction | — | — |
| Suwa | 2.00 m | tunnel | — | — |
| Toyonaka | 2.00 m | tunnel | — | — |
| 三井のリパーク · Suginami | 2.00 m | restriction | — | — |
| 三井のリパーク · Suginami | 2.00 m | restriction | — | — |
| タイムズ · Suginami | 2.00 m | restriction | — | — |
| National Highway Route 2 · Setouchi | 2.00 m | tunnel | — | — |
| 石橋商店街 (赤い橋通り) · Ikeda | 2.00 m | restriction | — | — |
| 三井のリパーク · Nagoya | 2.00 m | restriction | — | — |
| 三井のリパーク · Nagoya | 2.00 m | restriction | — | — |
| 三井のリパーク · Nagoya | 2.00 m | restriction | — | — |
| 三井のリパーク · Nagoya | 2.00 m | restriction | — | — |
| 三井のリパーク · Nagoya | 2.00 m | restriction | — | — |
| 三井のリパーク · Nagoya | 2.00 m | restriction | — | — |
| Amagasaki | 2.00 m | restriction | — | — |
| 三井のリパーク · Nagoya | 2.00 m | restriction | — | — |
| 三井のリパーク · Nagoya | 2.00 m | restriction | — | — |
| 三井のリパーク · Nagoya | 2.00 m | restriction | — | — |
| 三井のリパーク · Nagoya | 2.00 m | restriction | — | — |
| 三井のリパーク · Nagoya | 2.00 m | restriction | — | — |
| 三井のリパーク · Suginami | 2.00 m | restriction | — | — |
| 三井のリパーク · Yokohama | 2.00 m | restriction | — | — |
| 三井のリパーク · Setagaya | 2.00 m | restriction | — | — |
| 三井のリパーク · Setagaya | 2.00 m | restriction | — | — |
By region
Where the 4,099 restrictions in Japan are, across 47 regions.
| Region | Restrictions | Lowest |
|---|---|---|
| Tokyo | 738 | 1.00 m |
| Kanagawa | 490 | 1.60 m |
| Hyōgo | 346 | 1.00 m |
| Saitama | 346 | 1.40 m |
| Ōsaka | 308 | 1.20 m |
| Shizuoka | 214 | 1.50 m |
| Kyōto | 192 | 1.00 m |
| Aichi | 144 | 1.00 m |
| Hiroshima | 99 | 1.50 m |
| Gunma | 96 | 1.30 m |
| Niigata | 92 | 1.20 m |
| Nagano | 91 | 1.70 m |
| Chiba | 75 | 1.75 m |
| Saga | 71 | 1.60 m |
| Okayama | 66 | 1.60 m |
| Shiga | 66 | 1.50 m |
| Hokkaidō | 56 | 1.70 m |
| Tochigi | 54 | 1.00 m |
| Yamanashi | 50 | 1.80 m |
| Ehime | 46 | 1.80 m |
| Gifu | 37 | 1.60 m |
| Tokushima | 36 | 1.80 m |
| Ibaraki | 34 | 1.20 m |
| Kagoshima | 34 | 1.50 m |
| Kagawa | 31 | 2.00 m |
| Miyagi | 27 | 1.53 m |
| Fukuoka | 25 | 2.00 m |
| Okinawa | 24 | 2.90 m |
| Ōita | 23 | 1.70 m |
| Akita | 22 | 1.90 m |
| Toyama | 21 | 1.80 m |
| Nara | 21 | 1.00 m |
| Kumamoto | 18 | 1.50 m |
| Wakayama | 15 | 2.00 m |
| Mie | 15 | 1.60 m |
| Miyazaki | 10 | 2.50 m |
| Ishikawa | 10 | 2.00 m |
| Yamaguchi | 10 | 2.30 m |
| Nagasaki | 9 | 2.00 m |
| Fukushima | 7 | 1.80 m |
| Fukui | 6 | 2.20 m |
| Yamagata | 6 | 3.00 m |
| Tottori | 5 | — |
| Shimane | 3 | 1.80 m |
| Iwate | 3 | 2.30 m |
| Kōchi | 2 | 3.80 m |
| Aomori | 1 | 2.40 m |
How to read this data
Every point on this map comes from open map data, where a height restriction is recorded against the road, the bridge or the barrier it applies to. We rebuild our copy of Japan once a week, so a clearance corrected on Monday is here by the following weekend. The table lists the 100 lowest restrictions in the country; the map shows every one of them.
Of the 4,099 restrictions in Japan, 769 carry no height at all. That does not mean the road is clear. It means somebody recorded that a limit exists without recording the number — an unsigned height barrier, a sign nobody has read closely, or a tag that says only "lower than the usual limit". Treat those as unknown obstacles, not as open road. The rest break down as 1,200 under 2.5 m, 670 between 2.5 and 3.2 m, 714 between 3.2 and 4.0 m, and 746 above 4.0 m, with a median stated clearance of 3.00 m.
Coverage is uneven, and honestly so
This data is surveyed by people, and people survey what they drive. Motorways and trunk roads in Japan are close to complete; farm tracks, private yards and small village underpasses are not. Tokyo alone accounts for 738 of the country's restrictions, which says as much about who maps there as about where the low bridges are. A road with no marker on this map has probably never been surveyed for clearance — it is not a guarantee of headroom.
How tall is your vehicle
| Vehicle | Typical height |
|---|---|
| Small campervan (VW California, Transit Custom) | 2.0–2.2 m |
| Panel van conversion with a roof vent | 2.6–2.9 m |
| Coachbuilt motorhome | 3.0–3.5 m |
| Motorhome with a roof box or satellite dome | up to 3.6 m |
| Box truck / lorry | 4.0 m |
Measure yours rather than trusting the brochure: an air conditioner, a solar panel or a roof rack routinely adds 20 cm to a figure that was measured empty, and a loaded suspension does not give it back. Write the number on a sticker on the dashboard — it is the only figure that matters at the moment you are looking at a bridge and a queue of traffic behind you.
Before you drive
Restrictions cluster where old railways cross old roads, and those are exactly the routes a satnav picks to avoid a motorway toll. If your vehicle is over 3 m, plan the route before you start rather than trusting the shortest line on a phone screen.
Questions
How do I find the low bridges on my route in Japan?
Open the map above and look along your route before you leave: all 4,099 recorded restrictions in Japan are on it, coloured by clearance, and the table lists the 100 lowest with the town and road each one is on. On the road itself you want something watching ahead for you — a plan made at the kitchen table does not help at a junction you have already reached.
What is the maximum vehicle height allowed in Japan?
The general limit is 3.80 m, and anything lower than that has to be signed. That is exactly what makes the 4,099 restrictions on this page worth reading: they are the places where the ordinary limit does not apply.
How many low bridges are there in Japan?
Recorded here are 4,099 height restrictions of every kind — railway bridges, tunnels, underpasses and height barriers. 1,200 of them are under 2.5 m and 670 are between 2.5 and 3.2 m — the band that stops an ordinary campervan — while 746 are above 4.0 m.
What is the lowest bridge in Japan?
The lowest clearance a road vehicle could pass is 2.00 m; anything tagged lower is a gate or a barrier rather than a road. The median stated clearance is 3.00 m, and the table above starts at the lowest and works up.
A restriction on the map has no height. Does that mean the road is clear?
No. 769 of the 4,099 restrictions in Japan carry no number at all: somebody recorded that a limit exists without recording what it is — an unsigned barrier, a sign nobody read closely. Treat those as unknown obstacles, not as open road.
Where does this data come from, and how current is it?
From OpenStreetMap, rebuilt weekly; these figures were last measured on September 6, 2026. Coverage is uneven and this page says so: Tokyo alone accounts for 738 of the restrictions, which is as much about where people survey as about where the low bridges are.
Nearby countries
On the road
This map is a planning tool. On the road, ilovay warns you about height restrictions ahead based on the height of your vehicle, and can route around them. Free on Android.