Appendix C to Subpart A of Part 470 - Policy for the Signing and Numbering of Future Interstate Corridors Designated by Section 332 of the NHS Designation Act of 1995 or Designated Under 23 U.S.C. 103(c)(4)(B)
23:1.0.1.5.13.1.1.9.17 : Appendix C
Appendix C to Subpart A of Part 470 - Policy for the Signing and
Numbering of Future Interstate Corridors Designated by Section 332
of the NHS Designation Act of 1995 or Designated Under 23 U.S.C.
103(c)(4)(B) Policy
State transportation agencies are permitted to erect
informational Interstate signs along a federally designated future
Interstate corridor only after the specific route location has been
established for the route to be constructed to Interstate design
standards.
Conditions
1. The corridor must have been designated a future part of the
Interstate System under section 332(a)(2) of the NHS Designation
Act of 1995 or 23 U.S.C. 103(c)(4)(B).
2. The specific route location to appropriate termini must have
received Federal Highway (FHWA) environmental clearance. Where FHWA
environmental clearance is not required or Interstate standards
have been met, the route location must have been publicly announced
by the State.
3. Numbering of future Interstate route segments must be
coordinated with affected States and be approved by the American
Association of State Highway and Transportation Officials and the
FHWA at Headquarters. Short portions of a multistate corridor may
require use of an interim 3-digit number.
4. The State shall coordinate the location and content of
signing near the State line with the adjacent State.
5. Signing and other identification of a future Interstate route
segment must not indicate, nor imply, that the route is on the
Interstate System.
6. The FHWA Division Office must confirm in advance that the
above conditions have been met and approve the general locations of
signs.
Sign Details
1. Signs may not be used to give directions and should be away
from directional signs, particularly at interchanges.
2. An Interstate shield may be located on a green informational
sign of a few words. For example: Future Interstate Corridor or
Future I-00 Corridor.
3. The Interstate shield may not include the word
“Interstate.”
4. The FHWA Division Office must approve the signs as to design,
wording, and detailed location.
[40 FR 42344, Sept. 12, 1975. Redesignated at 41 FR 51396, Nov. 22,
1976, as amended at 76 FR 6692, Feb. 8, 2011]