Tateyama Expressway

The Tateyama Expressway (館山自動車道, Tateyama Jidōsha-dō) is a national expressway in Chiba Prefecture, Japan. It is owned and operated by East Nippon Expressway Company.

Tateyama Expressway
館山自動車道
Route information
Length55.7 km[1] (34.6 mi)
Existed1995[2]–present
Major junctions
FromChūō-ku, Chiba
Keiyō Road
ToFuttsu-Takeoka Interchange in Futtsu, Chiba
Futtsu Tateyama Road
Chiba Prefectural Route 91
Location
Major citiesIchihara, Sodegaura, Kisarazu, Kimitsu, Futtsu
Highway system
National highways of Japan
Expressways of Japan

Naming

Tateyama refers to the city of the same name on the Bōsō Peninsula, a major city in the region. Though the Tateyama Expressway does not actually reach the city proper, its extension the Futtsu Tateyama Road terminates at a point just beyond the city boundary in Minamibōsō City.

Officially the expressway is referred to as the Higashi-Kantō Expressway Tateyama Route and the Higashi-Kantō Expressway Chiba Futtsu Route.[3]

Overview

Together with the Keiyō Road and Futtsu Tateyama Road, the expressway forms a link connecting the greater Tokyo area with southern Chiba Prefecture. The expressway has a junction with the Tokyo Bay Aqua-Line, creating the only direct road link connecting Chiba and Kanagawa Prefectures.

The first section of the expressway was opened to traffic in 1995 and the entire route was completed in 2007.[4] The section from Kimitsu Interchange to Futtsu-Takeoka Interchange is 2 lanes, while the remainder is 4 lanes.

List of interchanges and features

Main Route
No. Name Connections Dist. from
Origin		 Dist. from
Terminus		 Bus Stop Notes Location
(all in Chiba)
Through to Keiyō Road
13 Ichihara IC National Route 297 (Ichihara Bypass) 8.0 43.4 Ichihara
BR Yōrōgawa Bridge ↓ ↑
SA Ichihara SA (11.7)
12.6		 39.7
(38.8)
14 Anesaki-Sodegaura IC Pref. Route 24 (Chiba Kamogawa Route) 18.0 33.4
BR Obitsugawa Bridge ↓ ↑ Kisarazu
Sodegaura
15 Kisarazu-kita IC National Route 409 (Bōsō Ōdan Road)
National Route 410		 25.0 26.4 Kisarazu
16 Kisarazu JCT Tokyo Bay Aqua-Line
Ken-Ō Expressway		 26.8 24.6
17 Kisarazu-minami JCT Kisarazu-minami Branch Route 30.7 20.7
BS Kisarazu-Hatorino Bus Stop ↓ ↑ ○
18 Kimitsu IC Pref. Route 92 (Kimitsu Kamogawa Route) 34.7 16.7 Kimitsu
BR Koitogawa Bridge ↓ ↑
PA Kimitsu PA 39.3 12.1
19 Futtsu-Chūō IC National Route 127 (Uchibō Nagisa Line) 43.9 7.5 Futtsu
TN Tenba Tunnel ↓ ↑ Length - 1,260 m
20 Futtsu-Takeoka IC Pref. Route 91 (Takeoka Inter Route) 51.4 0.0
Through to Futtsu Tateyama Road

Kisarazu-minami Branch Route
No. Name Connections Dist. from
Origin		 Dist. from
Terminus		 Bus Stop Notes Location
(all in Chiba)
17 Kisarazu-minami JCT Main Route 0.0 4.3 Kisarazu
TB Kisarazu-minami Toll Gate ↓ ↑
17-1 Kisarazu-minami IC National Route 127
National Route 16 (Tokyo Wangan Road)		 4.3 0.0
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gollark: Ah, didn't get the SAltkin. Not surprising, but a bit annoying nevertheless.
gollark: * moar
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References
  1. "E-NEXCO Expressway Data". Retrieved 2008-04-16.
  2. Japan Civil Engineering Contractors Association. "Construction History of Japan, 1995". Archived from the original on 2007-02-17. Retrieved 2008-04-16.
  3. Ministry of Land, Infrastructure and Transport. "High Standard Trunk Road Map" (PDF). Archived from the original (pdf) on 2011-09-20. Retrieved 2008-04-13.
  4. "E-NEXCO Press Release, April 26, 2007". Retrieved 2008-04-16.

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