| Guam Highway 3 | ||||
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| Maintained by Guam Department of Public Works | ||||
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| Guam Highway 3A | |
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| Location: | Tamuning–Dededo |
Guam Highway 3 (GH-3) is one of the primary automobile highways in the United States territory of Guam.
It runs in a south to north direction, from a junction with GH-1 near the Micronesia Mall in the southern community of Tamuning in a general northeasterly direction to the community of Dededo, where it meets GH-3A and GH-9. In between, it passes the United States Naval Communications Station Finegayan and the Federal Aviation Administration headquarters on the island.
Guam Highway 3A (GH-3A) connects GH-3 and GH-9 to Ritidan Point at the northern tip of the island of Guam in Dededo.