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Many speed limits are set by the State of Indiana and unless they are overridden by local ordinances, those speed limits are in effect on our county roadways.
To see a list of Indiana speed limit laws click on the following link:
Urban speed limits are set by the Indiana Government. Below are the special codes for Urban areas.
Urban District
Sec. 193 "Urban district" means the territory contiguous to and including any street that is built up with structures devoted to business, industry, or dwelling houses situated at intervals of less than two hundred (200) feet for a distance of at least one-fourth (1/4) mile.
As added by P.L.2-1991, SEC. 1.
Maximum speed limits
Sec. 2. Except when a special hazard exists that requires lower speed for compliance with section 1 of this chapter, the slower speed limit specified in this section or established as authorized by section 3 of this chapter is the maximum lawful speed. A person may not drive a vehicle on a highway at a speed in excess of the following maximum limits:
1) Thirty (30) miles per hour in an urban district.
2) Fifty-five (55) miles per hour, except as provided in subdivisions (1), (3), and (4).
3) Sixty-five (65) miles per hour, on a highway on the national system of interstate and defense highways located outside of an urbanized area (as defined in 23 U.S.C. 101)with a population of at least fifty thousand (50,000), except as provided in subdivision (4).
4) Sixty (60) miles per hour for a vehicle (other than a bus) having a declared gross weight greater than twenty-six thousand (26,000) pounds on a highway on the national system of interstate and defense highways located outside an urbanized area (as defined in 23 U.S. C. 101) with a population of at least fifty thousand (50,000).
(5) Fifteen (15) miles per hour in an alley.
As added by P.L. 2-1991, SEC. 9, Amended by P.L. 92-1991-, SEC. 2; P.L. 1-1993, SEC. 56.
IC 9-21-5-6
IC 9-21-5-7
vehicles by pulling off to the right of the right lane at the earliest
reasonable opportunity and allowing the blocked vehicles to pass.
IC 9-21-5-8
IC 9-21-5-8.5
IC 9-21-5-9
IC 9-21-5-10
permit suitable signs stating the maximum speed to be erected and
maintained at a distance of one hundred (100) feet or as near as
practicable before each end of the structure.
IC 9-21-5-11
Speed limits greater or lesser than reasonable; alteration by local
authority; engineering and traffic investigations; validity of speed
limits; conditions
Sec. 6. (a) Except as provided in subsection (e), whenever a local
authority in the authority's jurisdiction determines on the basis of an
engineering and traffic investigation that the maximum speed
permitted under this chapter is greater or less than reasonable and
safe under the conditions found to exist on a highway or part of a
highway, the local authority may determine and declare a reasonable
and safe maximum limit on the highway. The maximum limit
declared under this section may do any of the following:
(1) Decrease the limit within urban districts, but not to less than
twenty (20) miles per hour.
(2) Increase the limit within an urban district, but not to more
than fifty-five (55) miles per hour during daytime and fifty (50)
miles per hour during nighttime.
(3) Decrease the limit outside an urban district, but not to less
than thirty (30) miles per hour.
(4) Decrease the limit in an alley, but to not less than five (5)
miles per hour.
(5) Increase the limit in an alley, but to not more than thirty (30)
miles per hour.
(b) A local authority in the authority's jurisdiction shall determine
by an engineering and traffic investigation the proper maximum
speed for all local streets and shall declare a reasonable and safe
maximum speed permitted under this chapter for an urban district.
(c) An altered limit established under this section is effective at
all times or during hours of darkness or at other times as may be
determined when appropriate signs giving notice of the altered limit
are erected on the street or highway.
(d) Except as provided in this subsection, a local authority may
not alter a speed limit on a highway or extension of a highway in the
state highway system. A city or town may establish speed limits on
state highways upon which a school is located. However, a speed
limit established under this subsection is valid only if the following
conditions exist:
(1) The limit is not less than twenty (20) miles per hour.
(2) The limit is imposed only in the immediate vicinity of the
school.
(3) Children are present.
(4) The speed zone is properly signed.
(5) The Indiana department of transportation has been notified
of the limit imposed by certified mail.
(e) A local authority may decrease a limit on a street to not less
than fifteen (15) miles per hour if the following conditions exist:
(1) The street is located within a park or playground established
under IC 36-10.
(2) The:
(A) board established under IC 36-10-3;
(B) board established under IC 36-10-4; or
(C) park authority established under IC 36-10-5;
requests the local authority to decrease the limit.
(3) The speed zone is properly signed.
As added by P.L.2-1991, SEC.9. Amended by P.L.92-1991, SEC.3;
P.L.1-1992, SEC.50; P.L.126-1993, SEC.1.
Reduction of speed; impeding normal and reasonable movement;
right-of-way to other vehicles
Sec. 7. A person may not drive a motor vehicle at a slow speed
that impedes or blocks the normal and reasonable movement of
traffic, except when reduced speed is necessary for safe operation or
in compliance with the law. A person who is driving at a slow speed
so that three (3) or more other vehicles are blocked and cannot pass
on the left around the vehicle shall give right-of-way to the other
As added by P.L.2-1991, SEC.9.
Minimum speed limits
Sec. 8. Whenever the Indiana department of transportation within
the department's jurisdiction or a local authority within the
authority's jurisdiction determines, based on an engineering and
traffic investigation, that slow speeds on a part of a highway
consistently impede the normal and reasonable movement of traffic,
the Indiana department of transportation or local authority may
determine and declare a minimum speed limit below which a person
may not drive a vehicle except when necessary for safe operation or
in compliance with law. A limit determined under this subsection and
declared by appropriate resolution, regulation, or ordinance becomes
effective when appropriate sign or signals giving notice of the limit
of speed are erected along the affected part of a highway.
As added by P.L.2-1991, SEC.9.
Low speed vehicles
Sec. 8.5. A person may not drive a low speed vehicle on a
highway that has a speed limit in excess of thirty-five (35) miles per
hour.
As added by P.L.21-2003, SEC.8.
Vehicles traveling at reduced speeds; use of right lane
Sec. 9. A vehicle that travels at a speed less than the established
maximum shall travel in the right lanes to provide for better flow of
traffic on the interstate highways.
As added by P.L.2-1991, SEC.9.
Bridges and elevated structures; maximum speed; safety
investigation; posting of signs; violations; conclusive evidence
Sec. 10. (a) A person may not drive a vehicle over a bridge or
other elevated structure constituting a part of a highway at a speed
that is greater than the maximum speed that can be maintained with
safety to the bridge or structure, when the structure is signposted as
provided in this section.
(b) The Indiana department of transportation may conduct an
investigation of a bridge or other elevated structure constituting a
part of a highway. If the Indiana department of transportation finds
that the structure cannot with safety to the structure withstand
vehicles traveling at the speed otherwise permissible under this
chapter, the Indiana department of transportation shall determine and
declare the maximum speed of vehicles that the structure can
withstand. The Indiana department of transportation shall cause or
(c) Upon the trial of a person charged with a violation of this
section, proof of the determination of the maximum speed by the
Indiana department of transportation and the existence of signs
erected under subsection (b) constitutes conclusive evidence of the
maximum speed that can be maintained with safety to the bridge or
structure.
As added by P.L.2-1991, SEC.9.
Temporary maximum speed limits; worksite speed limits
Sec. 11. (a) Subject to subsection (b), the Indiana department of
transportation, the transportation finance authority, or a local
authority may establish temporary maximum speed limits in their
respective jurisdictions and in the vicinity of a worksite without
conducting an engineering study and investigation required under
this article. The establishing authority shall post signs notifying the
traveling public of the temporary maximum speed limits established
under this section.
(b) Worksite speed limits set under this section must be ten (10)
miles below the maximum established speed limit. A worksite speed
limit may not exceed forty-five (45) miles per hour in any location.
As added by P.L.2-1991, SEC.9. Amended by P.L.116-2001, SEC.1.