Summary of State Speed Laws - NHTSA

JURISDICTION: INDIANA
This chapter summarizes Indiana State statutes related to
speed.
General References: Burn's Indiana Statutes Annotated and Indiana Administrative
Code (IAC)
Basis for a Speed Law Violation:
Basic Speed Rule: A person may not drive a vehicle at a speed greater than is
reasonable and prudent under the conditions, having regard to
the actual and potential hazards then existing. This includes
special hazards such as going around a curve, approaching a
hill, traveling upon a narrow or winding roadway. §§9-21 —
5 — 1 and 9-21-5-4
Statutory Speed Limit: 70 mph {except for vehicles having a declared gross weight
greater than twenty-six thousand pounds} on an interstate or
defense highway located outside an urban area with a
population ≥50,000. §9-21-5-2(3)
65 mph for vehicles having a declared gross weight greater
than twenty-six thousand pounds - — on an interstate or
defense highway located outside an urban area with a
population ≥50,000. §9-21-5-2(4)
65 mph on: (A) U.S. 20 from the intersection of U.S. 20 and
County Road 17 in Elkhart County to the intersection of U.S.
20 and U.S. 31 in St. Joseph County;
(B) U.S. 31 from the intersection of U.S. 31 and U.S. 20 in
St. Joseph County to the boundary line between Indiana and
Michigan; and
(C) a highway classified by the Indiana department of
transportation as an INDOT Freeway. §9-21-5-2(5)
60 mph on a highway: (A) not designated part of the national
system of interstate and defense highways; (B) has four (4) or
more lanes;
(C) is divided into two (2) or more roadways by:
(i) an intervening space that is unimproved and not
intended for vehicular travel;
(ii) a physical barrier; or
(iii) a dividing section constructed to impede vehicular
traffic; and
(D) is located outside an urbanized area. §9-21-5-2(7)
55 mph on other highways §9-21-5-2(2)
30 mph in an urban district §9-21-5-2(1)
15 mph in an alley §9-21-5-2(8)
Posted (Maximum) Speed Limit:
I. Based on engineering and traffic investigations, the State
Department of Transportation may increase or lower the
above speed limits on any part of a highway. 150 §§9-21 — 5
— 3 and 9-21-5-12(a)
150 The department may also establish different maximum speed limits (1) for different times of the day, (2) for various
types of vehicles, (3) for various weather conditions or (4) for other factors related to speed. §9-21-5-12(b)
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