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Interstates

Interstates in New Mexico are the following:

I-10 Arizona to Texas
I-40 Arizona to Texas
I-25 Colorado to I-10

Other Important Major Roads

US-550 Farmington to Albuquerque
US-285 Colorado to Texas
US-60 Arizona to Texas
US-54 El Paso, TX to NW Texas
SR-26 Hatch NM to Deming NM, critical for functional classification routing

State Highway Naming

The approved format for State Highway naming in New Mexico is: SR-##

Locking Standard

Actual locks used may be more or less than values in the table, depending on area circumstance. Please consult the RC, SM, or appropriate AM for guidance.

**New Mexico Minimum Locking Rank Standard**
Segment Type	Default locks
Freeway	5
Ramp	4
Major Highway	4
Minor Highway	3
Primary Street	2
Street	1
• • • • Ferry • • • •	5
\|-\|-\|-\|-\|-\|-\|-\|-\|-\| Railroad \|-\|-\|-\|-\|-\|-\|-\|-\|-\|	2

Functional Classification

Reference: Road names and Road types. New Mexico participates in the functional classification of roads.

NMDOT to Waze Functional Classification conversion

The New Mexico Classification and Color scheme comes from the official New Mexico D.O.T (NMDOT) Functional Classification (FC) map that is published by NMDOT. The legend shows what classifications NMDOT uses and what color is assigned to each class. The actual interactive State Map can be found here:

NM Interactive FC Map

NMDOT to Waze conversion table

		Highway Systems
		Interstate	US Hwy (incl. some special routes)	State Hwy (incl. some special routes)	State Hwy BUS, SPUR^[a], LOOP	Locally-maintained
	example>>>>>	I-10 E	US-190	SR-23	SR-400 Loop	Robertson St
F u n c t i o n a l C l a s s	Interstate	Fw	n/a	n/a	n/a	n/a
	Principal Arterial	n/a	Major	Major	Major	Major
	Minor Arterial	n/a	Major	Minor	Minor	Minor
	Major Collector	n/a	Major	Minor	PS	PS
	Minor Collector	n/a	Major	Minor	PS	PS
	Local/Not Mapped	n/a	Major	Minor	PS	Street

Deviations from FC

Longer rural roads classified as "Major Collector" on the FC map should be set to Minor rather than PS to avoid pruning of valid routes.

State highways that are classified on the State FC map as "Minor Collector," but are dirt/gravel, should be set to PS and have the unpaved box checked, instead of Minor .

SR-26, Hatch NM to Deming NM, is set to Major to allow routing from I-25 south to I-10 west and bypass Las Cruces.

[a]

@@ Line 79: / Line 79: @@
 ===== Deviations from FC =====
+*Longer rural roads classified as "Major Collector" on the FC map should be set to {{Minor Highway|Minor}} rather than {{Primary Street|PS}} to avoid pruning of valid routes.
-* State Highways that are classified on the State FC map as "Minor Collector," but are dirt/gravel, should be classified as {{Primary Street|PS}}, instead of {{Minor Highway|Minor}}.
+* State highways that are classified on the State FC map as "Minor Collector," but are dirt/gravel, should be set to {{Primary Street|PS}} and have the unpaved box checked, instead of {{Minor Highway|Minor}}.
-* SR-26, Hatch NM to Deming NM, as {{Major Highway|Major}} to allow routing from I-25 south to I-10 west and bypass Las Cruces.
+* SR-26, Hatch NM to Deming NM, is set to {{Major Highway|Major}} to allow routing from I-25 south to I-10 west and bypass Las Cruces.

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