Kanagawa Area — Toll Roads & ETC Guide
ETC toll road guide for Yokosuka Naval Base, NAF Atsugi, Camp Zama, and Yokota Air Base personnel. Covers the Yokohama-Yokosuka Road, Tomei Expressway, Ken-O Expressway, and surrounding toll roads in the greater Kanagawa area.
Military Installations
U.S. Installations in Kanagawa Prefecture
CFAY Yokosuka
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Commander Fleet Activities Yokosuka. Home of the U.S. 7th Fleet. Largest overseas U.S. naval installation (~579 acres). ~27,000 personnel.
Yokosuka IC (Yokohama-Yokosuka Rd)
NAF Atsugi
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Naval Air Facility. Largest U.S. Navy air base in the Pacific. Joint-use with JMSDF. Aviation support and carrier air wing operations. ~8,000 personnel.
Atsugi IC (Tomei Expressway)
Camp Zama
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U.S. Army Japan (USARJ) and I Corps Forward headquarters. Intelligence, aviation, and operations support. ~4,000 personnel.
Sagamihara-Aikawa IC (Ken-O Expressway)
Sagami General Depot
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Major U.S. Army logistics and supply depot in Sagamihara. Storage and distribution facility for the Pacific region.
Sagamihara-Aikawa IC (Ken-O Expressway)
Sagamihara Housing Area
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U.S. Army family housing supporting Camp Zama and Sagami Depot personnel in Sagamihara.
Sagamihara-Aikawa IC (Ken-O Expressway)
Ikego Housing Area
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Navy family housing area (~850 acres) in Zushi supporting CFAY Yokosuka personnel. ~2,000 residents.
Zushi IC (Yokohama-Yokosuka Rd)
Azuma Storage Area
Navy munitions and ammunition storage facility supporting fleet operations in Yokosuka.
Yokosuka IC (Yokohama-Yokosuka Rd)
Yokohama North Dock
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U.S. Army port facility (FAC 3067) in central Yokohama. Major logistics hub for troops, equipment, and supply movement.
Kariba JCT (Yokohama-Yokosuka Rd)
Yokota Air Base (Tokyo)
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USFJ Headquarters and 374th Airlift Wing in western Tokyo. Accessible from Kanagawa via Ken-O Expressway. ~14,000 personnel.
Iruma IC (Ken-O Expressway)
Expressways & Toll Roads
Nearby Toll Roads
Yokohama-Yokosuka Road
E16NEXCO EastPrimary toll road connecting Yokosuka to Yokohama (36.9 km). The main expressway for Yokosuka Naval Base personnel heading to Yokohama or Tokyo. Connects to Shuto Expressway at Kariba JCT.
Key Interchanges
Tomei Expressway
E1NEXCO CentralMajor expressway connecting Tokyo to Nagoya. Atsugi IC provides access to NAF Atsugi. Connects to Yokohama-Yokosuka Road via Yokohama-Machida IC area. Primary route west toward Gotemba, Shizuoka, and Nagoya.
Key Interchanges
Ken-O Expressway (Keno-do)
C4NEXCO East/CentralRing expressway circling greater Tokyo. Connects Camp Zama (Sagamihara-Aikawa IC) to Yokota Air Base area (Iruma IC) without going through central Tokyo. Also links to Tomei and Chuo Expressways.
Key Interchanges
Shin-Yokohama Route (Shuto K7)
K7Metropolitan ExpresswayConnects Yokohama-Yokosuka Road to Tomei Expressway via Yokohama-Kohoku JCT. Useful shortcut between Yokosuka and Tomei without going through central Yokohama.
Key Interchanges
Odawara-Atsugi Road
LocalLocalConnects Atsugi IC area to Odawara and Hakone. Partially tolled. Useful for accessing western Kanagawa and Hakone resort area.
Key Interchanges
Route Estimates
Common Routes & Estimated Tolls
| Route | Distance | Time | Cash | ETC Price |
|---|---|---|---|---|
| Yokosuka IC → Yokohama (Kariba JCT) | ~24 km | ~20 min | ~950 yen | ~670 yen |
| Yokosuka IC → Tokyo (Shuto via Kariba) | ~55 km | ~45 min | ~2,400 yen | ~1,680 yen |
| Atsugi IC → Tokyo IC (Tomei) | ~30 km | ~25 min | ~1,100 yen | ~770 yen |
| Atsugi IC → Gotemba IC (Camp Fuji) | ~35 km | ~25 min | ~1,200 yen | ~840 yen |
| Sagamihara-Aikawa IC → Iruma IC (Yokota) | ~35 km | ~30 min | ~1,200 yen | ~840 yen |
| Yokosuka IC → Atsugi IC | ~40 km | ~35 min | ~1,600 yen | ~1,120 yen |
Tolls are estimates for standard vehicles. Actual tolls vary by time of day and discount programs. ETC prices shown are standard ETC rates — additional discounts (late night, weekend) stack on top.
Save Money
ETC Discounts Available
Late Night Discount
ETC users driving between midnight and 4:00 AM on NEXCO expressways (Tomei, Ken-O, Yokohama-Yokosuka Road).
Weekend/Holiday Discount
Saturdays, Sundays, and national holidays on rural expressway sections. Applies to Ken-O and outer Tomei sections.
Commuter Discount
Trips under 100 km during morning (6-9 AM) and evening (5-8 PM) rush hours on eligible sections outside Tokyo metro.
Metropolitan ETC Discount
Shuto Expressway uses distance-based ETC pricing. Short trips with ETC cost less than the maximum cash rate.
Mileage Program
Register your ETC card for the NEXCO mileage program. Points earned on all NEXCO expressways.
Ken-O Expressway Discount
Special ETC discount for using the Ken-O ring road instead of passing through central Tokyo. Encourages bypass traffic.
Local Knowledge
Driving Tips for Kanagawa
Yokosuka IC is the primary access for the Naval Base. From the IC, follow signs to Route 16 toward Yokosuka city center and the main gate.
For NAF Atsugi, exit at Atsugi IC on Tomei Expressway. Follow Route 129 south for about 10 minutes to reach the base gates.
Camp Zama is best accessed from Ken-O Expressway at Sagamihara-Aikawa IC, or from Tomei at Atsugi IC heading north on Route 129.
The Yokohama-Yokosuka Road is a mountain expressway with tight curves and tunnels. Speed limit is 70-80 km/h. Watch for sudden braking in tunnels.
Rush hour on Tomei between Atsugi IC and Tokyo IC (7-9 AM, 5-8 PM) is among Japan's worst congestion. Allow double the normal time.
To reach Yokota Air Base from Kanagawa without going through Tokyo, use Ken-O Expressway (Sagamihara-Aikawa IC → Hachioji JCT → Iruma IC).
Kamakura and Enoshima are popular but extremely congested on weekends and holidays. Use Zushi IC (Yokohama-Yokosuka Road) for easiest access.
Kanagawa has multiple toll systems: NEXCO (Tomei, Ken-O), Metropolitan (Shuto), and local roads. Your ETC card works on all of them.
Get Your ETC Card for Kanagawa
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