circle, within a rectangular shield with an arced bottom edge. The Spaulding Turnpike uses a blue color, while the Everett Turnpike uses a green color. Older shields used inverted colors, with white text and circle inside of a colored background. There is no shield for the Blue Star Turnpike, as it is only signed as I-95. However, when it was called the New Hampshire Turnpike it was signed with shields similar to those of the Spaulding and Everett turnpikes, blue in color and reading as "N.H. Turnpike". Exit numbering New Hampshire is one of the few states that still uses sequential exit numbering on its freeways, including all Interstate highways, the Turnpike routes, as well as the NH 101 freeway between Manchester and Hampton. Exits to Interstate Highways are not assigned numbers, with the exception of I-93's Exit 15E to I-393 in Concord, which existed as such before I-393 was designated, and retained its exit number. There are a few sequential numbering anomalies: Exit 3 on I-293 (the interchange with NH 101 and the Everett Turnpike) is not signed. Exits 2 and 5 on the Spaulding Turnpike were eliminated as part of a reconstruction and widening project in the late 2010s. Exit 9 on the Everett Turnpike has never existed. Exit 10 on the Spaulding Turnpike has never existed - the number was intentionally skipped to allow for future construction of an additional interchange between Dover and Rochester. Exit 21 on I-93 has never existed. Major junctions and route concurrencies New Hampshire, in contrast to most other states, normally signs route junctions using green guide signs (similar to those found on freeways) instead of individual sign and shield assemblies. New Hampshire also signs nearly all route concurrencies in the same way. However, as signs are being replaced, they are now more often replaced with traditional sign assemblies. Unnumbered state highways Several unnumbered roads also are maintained by the state, including: The Circumferential Highway in Nashua & Hudson (the portion that is built) Daniel Webster Highway in South Nashua See also Notes References External links Granite State Roads Road Signs of New Hampshire New Hampshire highways