Nebraska Administrative Code › Topic - TRANSPORTATION, DEPARTMENT OF › Title 428 - BOARD OF PUBLIC ROADS CLASSIFICATIONS AND STANDARDS › Chapter 2 - Procedures for Standards › Section 428-2-001 - MINIMUM DESIGN STANDARDS - STATE HIGHWAY, COUNTY ROAD AND MUNICIPAL STREET SYSTEMS

Current through June 17, 2024
001.01 INTENT OF BOARD FOR INTERPRETATION OF
  DESIGN STANDARDS
001.01A These standards are
  minimum standards of design, construction and maintenance for each functional
  classification of highway, street or road. These standards are not intended to
  require the reconstruction of highways, roads or streets previously
  constructed.
001.01B The Board
  encourages the owners of highways, roads and streets to design their facilities
  to meet each applicable design standard set out in these rules and regulations.
  The Board understands that construction of highways, roads and streets cannot
  be completed with the accuracy that could be implied by these standards. The
  Board recognizes that current construction methods can only achieve substantial
  conformance to the design. The Board recognizes further that measurements of
  highway geometry will also vary as a result of the measurement method used and
  the inherent discretion required in selecting the beginning and end points of
  the feature being measured. Further, after construction, a transportation
  facility is subject to wear and tear related to post-construction human
  impacts, varying environmental and weather conditions, changes that result from
  natural processes and lack of available funding. Therefore, a particular
  roadway may not, after construction, strictly conform to the design standards
  set out in these rules. Absent bad faith, the Board believes that a
  post-construction failure to meet standards should not be viewed as improper,
  as a violation of these standards, or as evidence of negligence, in and of
  itself. These rules should be interpreted as a failure to meet standards only
  when there is a clear and convincing showing that the owner disregarded these
  standards. Therefore, these design standards should not be interpreted as
  requiring strict compliance at each and every street, road or highway location
  because such precision was not intended by the Board nor can it ever be
  obtained. This statement of intent is not intended to limit or affect any
  remedy available to the Board by law.
Copies of the following documents referred to in the Standards are on
	 file in the NDOR Central Administration Complex, 1500 Highway 2, Lincoln,
	 Nebraska:
AASHTO "A Policy on Geometric Design of Highways and Streets
	 6th Edition 2011"
AASHTO "Guidelines for Geometric Design of Very Low-Volume Local Roads
	 (ADT [LESS THAN EQUAL TO] 400) Edition 2001"
AASHTO "Roadside Design Guide 4th Edition
	 2011"
Mitigation Strategies for Design Exceptions, U.S. Dept. Of
	 Transportation, FHWA, Washington, D.C., 2007
Special Report 214, Designing Safer Roads, Practices for Resurfacing,
	 Restoration, and Rehabilitation, Transportation Research Board, National
	 Research Council
NDOR, Nebraska Department of Roads, 2007 Standard Specifications for
	 Highway Construction
Manual on Uniform Traffic Control Devices for Streets and Highways
	 (MUTCD) adopted pursuant to Chapter 60, Neb. Rev. Stat. §
											60-6,118
The following abbreviations and symbols are used in the
	 Standards:
%
Percent
%HT
heavy trucks as a percentage of all traffic
+
Plus
<
Less than (fewer than)
=
Equal to
>
Greater than (more than)
[LESS THAN EQUAL TO]
Equal to or less than (equal to or fewer than)
[GREATER THAN EQUAL TO]
Equal to or greater than (equal to or more than)
3R
Resurfacing, Restoration and Rehabilitation
AASHTO
American Association of State Highway and Transportation
				  Officials
ADT
average daily traffic (volume)
Board
Nebraska Board of Public Roads Classifications and
				  Standards
BOC
Back-of-curb
DDHV
Directional Design Hourly Volume
DHV
Design Hourly Volume
DS
design speed
emax
maximum superelevation
EOTW
edge of traveled way
ft.
foot or feet
GVW
Gross Vehicle Weight
H
Horizontal (used in slopes, e.g. 1V:4H)
HL93
AASHTO Load and Resistance Factor Design (LRFD) Bridge Design
				  Specification
HS15
Standard vehicle live loads (15-ton GVW, 3 tons applied to
				  front axle, 12 tons to rear axle) established by AASHTO for use in bridge
				  design and rating.
HS20
Standard vehicle live loads (36-ton GVW, 4 tons applied to
				  front axle, 16 tons to rear axle, 16 tons to semi-trailer axle) established by
				  AASHTO for use in bridge design and rating.
Lt.
left
MPH
miles per hour (speed)
NBCS
Nebraska Board of Public Roads Classifications and
				  Standards
NDOR
Nebraska Department of Roads
RSAP
Roadside Safety Analysis Program
Rt.
right
V
Vertical (used in slopes, e.g. 1V:4H)
VPD
vehicles per day