4 Procedures The district determines which permits are applicable to the project, assembles the pertinent design information, and applies to the DOE regional office for a permit.. The di
Trang 1Discharge Elimination System (NPDES) permit.
DOE issues a combined permit satisfying both state
and federal requirements This permit may include a
Short Term Modification
(e) Short Term Modification This permit is advised
when the project activities may temporarily degrade
water quality and a Waste Discharge Permit or Water
Quality Certification is not necessary This permit
exempts WSDOT from being cited for violating
water quality standards as long as the project
complies with the prescribed terms and provisions
(f) Appropriation of Water A water right permit must
be obtained from DOE before surface or ground
water is appropriated for beneficial use If the use is
for construction purposes, such as dust control or
batch plant operation, the permit is temporary and
expires when the project is complete The contractor
usually applies for a temporary water permit but, if
the usage is specifically required by WSDOT, the
district acquires the permit before awarding the
contract If WSDOT needs to develop a permanent
water supply, such as for a rest area or maintenance
facility, the district applies to the DOE regional office
for a permit to develop a water source After the
source is put to use, DOE issues a certificate
establishing a water right in perpetuity
(4) Procedures
The district determines which permits are applicable to
the project, assembles the pertinent design information,
and applies to the DOE regional office for a permit If the
information is inadequate, the DOE requests further
information If the application was appropriate, the DOE
acts upon the request If other DOE permits are required,
the DOE will inform the district
The headquarters Project Development Office may be
requested to assist in resolving differences with the DOE
If the DOE has not responded to a permit request within
30 days, they should be contacted to determine the cause
for delay and how to expedite a response The district
sends copies of correspondence and the permit to the
headquarters Project Development Office
(5) Water Pollution Control Plan (WPCP)
The WPCP contains design details of water pollution
control measures for a project
(a) Procedures The district arranges a meeting with
the appropriate DOE region and a headquarters Project
Development Office representative at least annually
to review upcoming projects that may have potential
for water pollution The district presents sufficient
information to enable the DOE to determine whether
a WPCP is necessary and what permits may be
required After the review, the district notifies the
headquarters Project Development Office of projects
requiring a WPCP When the district prepares theactual plan they will coordinate with the DOE regionand, as needed, get technical assistance from theheadquarters Project Development Office Thecompleted plan is sent to the headquarters ProjectDevelopment Office for review and approval Afterapproval, the district submits the WPCP to the DOEregion for approval along with a copy of or reference
to the approved SEPA document
After DOE approves the WPCP, the districtincorporates the relevant contents of the approvedWPCP into the Contract Documents As outlined inthe Standard Specifications for Road, Bridge, andMunicipal Construction (Section 1-07), the districtalso reviews, approves, and implements thecontractor’s Temporary Water Pollution ControlPlan Temporary Water Pollution Control Plansshould be carefully checked for compliance with theDOE approved WPCP in the contract documents.Any substantive deviations from the DOE approvedWPCP should be discussed with DOE Regionalrepresentatives prior to approval of the contractor’splan
Construction activities should be monitored by thedistrict to ensure that the DOE approved WPCP andthe contractor’s Temporary Water Pollution ControlPlan are followed and water quality is not adverselyimpacted Additional measures to protect water qual-ity may be needed as construction progresses andshould be implemented when required
For projects that involve rest area or maintenance sitesewage disposal systems, the district shall submitplans and specifications to the DOE, DSHS, or localagency, depending on the volume of the system SeeFigures 240-1a and 1b for the Permits and Approvalslisting After a mechanical or lagoon treatmentfacility is constructed, the district will submit anOperation and Maintenance Manual to DOE as perWAC 173-240
(b) Contents of WPCP.
• Location and description of the project using avicinity map and a detailed site map showingwells, streams and other water bodies, water andsewer lines, existing and proposed drainage,pollution control facilities, and access routes tothese facilities
• A list of wells, streams, and water bodies thatmight be impacted by the project, including theirwater quality classification and use
• A list of permits or other documentation requiredfor the project, such as Corps of Engineers,Shoreline, and Hydraulic Project Approval
• Describe the construction and operation ofstormwater systems including design stormsand runoff quantities, drainage system sizes
September 1990
Trang 2and capacities, and locations of discharges to
receiving waters
• Discuss construction and operation of erosion
control methods, including maximum disturbed
areas, contributing areas, and proposed
main-tenance
• Discuss construction and operation of sediment
control including methods, location, size, design
criteria, and proposed maintenance
• Oil and buoyant material control methods
and proposed maintenance including hazardous
spill control locations, methods, capacities, and
clean-up procedures
• Woodwaste fill and stockpile locations,
construction procedures, drainage, and leachate
control and prevention methods
• Waste disposal methods and locations
• Timing for installation of pollution control
The DNR administers the Forest Practice Act, the state’s
natural resources, and certain state-owned lands These
lands include tidelands and shorelands, school trust lands,
Forest Board lands, escheat lands, and certain Federal
Land Grants provided by the Enabling Act
When any DNR lands are needed for highway purposes,
WSDOT negotiates for that use with the Commissioner
of Public Lands Except for obtaining rights of entry to
do surveys and studies, all coordination and negotiations
for DNR lands are made by the WSDOT Land
Manage-ment Office
(2) Lease Property
When WSDOT requires highway materials from DNR
land, the district submits one copy of SF-4046,
Applica-tion to Purchase Materials Upon State Lands, through the
Land Management Office to DNR The application
includes estimates of quantities, time periods, and a map
showing site details DNR reviews the application and
negotiates a royalty with WSDOT Both agencies sign a
nonexclusive contract (lease) for a specified time,
allow-ing WSDOT to extract material from the site Every
six months for the life of the extraction lease, the district
sends a “Removal Report” to DNR stating amount of
material removed and includes payment for that material
The permit or lease normally allows WSDOT to stockpile
materials at the site if room is available Prior to using the
site, WSDOT must also complete a reclamation plan as
shown in Chapter 510 and the Plans Preparation Manual.
When WSDOT uses their own land for surface mining, a
DNR operating permit for surface mining is required
Details for obtaining the permit are found in the Plans
Preparation Manual.
(3) Right of Entry
When WSDOT determines that access to land is neededfrom the DNR, the district requests a Right of Entry fromthe local DNR office A copy of the request is also sent
to the Land Management Office The district will notenter upon DNR land to survey or appraise until the Right
of Entry is obtained
(4) Transfer of Jurisdiction
When the district determines that DNR land is requiredfor the project, the district will develop the appropriateright of way maps indicating DNR land involved Whenthe district is ready to appraise the property, they willcontact a DNR appraiser to jointly inspect the parcel soappraisal issues can be immediately identified and dis-cussed The Land Management Office determines theneed for timber cruises or other special studies With theappraisal process complete, the Land Management Officesubmits maps, legal description, letter indicating intent toacquire, and WSDOT offer to DNR The DNR shouldrespond in 60 days If accepted, WSDOT receives aTransfer of Jurisdiction If rejected, the Land Manage-ment Office continues negotiations
If lands are needed for a marine facility the WSDOT mustonly file a map of required area with DNR in accordancewith RCW 47.12.026
If any of the above actions involve leased DNR land, theWSDOT must get a release or waiver from the lesseebefore the DNR will act
(5) Washington Forest Practice (a) General The DNR administers and enforces the
Washington Forest Practices Rules and Regulations,except as otherwise provided in the Forest PracticeAct WAC 222, “Washington Forest Practices Rulesand Regulations,” is available in booklet formthrough the DNR Lands may be private or publiclyowned lands on which activities are planned that aresubject to the authority of the Forest PracticesRegulations
All Forest Practices Regulations are promulgated toachieve compliance with the water quality laws.Forest Land is land that is capable of supporting amerchantable stand of timber and is not beingactively used for a purpose incompatible with timbergrowing Forest Practice is any activity conducted on
or directly pertaining to forest land and relating togrowing, harvesting, or processing timber such asroad and trail construction, harvesting (final andintermediate), precommercial thinning, refores-tation, fertilization, prevention and suppression of
September 1990
Trang 3diseases and insects, salvage of trees, and brush
control
When any land that can be defined as Forest Land is
altered or becomes the site of construction, the district
may be required to fill out a Forest Practices
Appli-cation/Notification form and submit it to the DNR
area office If the contractor fills out the application,
it must still be signed by the District Administrator
Permit application forms are available from DNR
Locations and addresses are shown on Figure 240-3
(b) Permit Procedures The types of Forest Practices for
the determination of permit application and
notifica-tion requirements are divided into four classes:
• Class I Forest Practice operations are those with
no direct potential for damaging a public
resource Class I requires no application or
noti-fication but does require compliance with all
other Forest Practice Regulations
• Class II Forest Practice operations are those that
are determined to have a less than ordinary
potential to damage a public resource Class II
requires a notification to DNR Operations may
begin five calendar days after the notification is
sent
• Class III Forest Practice operations are those that
are not listed under Classes I, II or IV Class III
requires an application that must be approved or
disapproved within fourteen calendar days of
receipt by DNR
• Class IV Forest Practice operations are those that
are determined to have potential for a substantial
impact on the environment Class IV Forest
Practices are divided into two groups; Class IV
Special and Class IV General Each requires an
application to DNR that is approved or
disap-proved within thirty calendar days Class IV
Special requires an additional evaluation by
DNR to determine whether a detailed
environ-mental impact statement is necessary Additional
time is generally required when a detailed
environmental impact statement is necessary
240.12 WASHINGTON STATE
DEPARTMENT OF LABOR
AND INDUSTRIES
(1) General
When WSDOT has need to store explosives, the district
obtains a storage license from the State Department of
Labor and Industries (L&I)
(2) License
The district files an “Application for License to Operate
a Storage Magazine for Explosives.” The application is
available through any office of L&I and must be
submit-ted with detailed plans of the storage facility showing
itsˇdistance from inhabited buildings, public highways,and other facilities The approximate quantity, in pounds,
of stored material or storage capacity should also beidentified
(3) Procedures
The district completes the application and sends it to theOlympia Office of L&I The district also takes the lead incoordinating with any other agency that may be involved
to secure approval of the storage facilities
If the stored material involves projectiles or militaryexplosives, the facility plan must be coordinated with andreviewed by the U.S Department of Defense
Concurrence to store explosives must also be obtainedfrom the property owner where the facility is on lands thatWSDOT does not own, such as U.S Forest Service Land,DNR land, etc
240.13 LOCAL AGENCIES
(1) General
Many local agencies have miscellaneous use permits andregulations that they have instituted to maintain orderlygrowth and development WSDOT complies with per-mits, approvals, or licenses delegated to the local agency
by the state, such as building, air pollution, and shorelinespermits
The Department of Transportation, as a state agency, isnot legally obligated and will not obtain permits andapprovals enacted at local discretion However, in main-taining a working relationship with local agencies, thedistrict coordinates project development activities withthe local agencies, seeking to obtain their views,comments, and input
(2) Change of Grade Permit
Whenever WSDOT construction entails a change in streetgrades in an incorporated city or town, the state is obli-gated by law to present the plans of new grades to the city
or town for adoption by ordinance To eliminate projectdelays, the district should send plans to the local agencyfor approval during the design report stage
On limited access facilities, no grade approval is usuallyrequired for the highway itself However, plans must besubmitted to any incorporated city or town for gradeapproval for connecting streets, frontage roads, streetsoutside the limited access, and streets or connectionswithin interchange areas, including any roadway passingover or under the facility but having no connection to it
(3) Shoreline Substantial Development Permit (a) General Local governments, delegated the authority
by DOE, issue a Shorelines Permit for projects thatinvolve substantial development on waters of thestate or shorelines of the state Shorelines of the state
September 1990
Trang 4include the water areas of the state and their
associ-ated wetlands, including lands within 200 feet of the
high-water mark and associated marshes, bogs,
swamps, floodways, river deltas, and flood plains
Streams with a mean annual flow of less than 20 cfs
or lakes smaller than 20 acres (including the adjacent
wetlands) are exempt Substantial development
means any development of which the total cost,
or fair market value, exceeds $2500; or, any
develop-ment that materially interferes with normal public
use of the water or shorelines of the state DOE has
maps showing areas affected by the Shoreline
Development Permit
A Conditional Use Permit or Variance (RCW 36.70,
“Planning Enabling Act”) is required when the
proj-ect or an element of the projproj-ect does not conform to
the Shoreline Master Plan For this permit, DOE
makes the decision whether to approve or deny the
permit based on the local agency’s recommendation
(b) Process The district applies for a Shoreline
Substan-tial Development permit from the local agency whensufficient design information is available The localagency will schedule a hearing on the application tosolicit any comments When responses to commentsare satisfied and the local agency receives WSDOT’sfinal environmental document, the local agency thentakes action on the shorelines permit If the permit isdenied, WSDOT may appeal to the Shorelines Hear-ings Board Construction in the shoreline area cannotbegin until 30 days after the permit has beenapproved
240.14 UTILITY AGREEMENTS
To complete projects to the contract stage, it is frequentlynecessary to enter into agreements with numerous otherentities Most frequently used are Utility Agreements,Detour and Haul Road Agreements, and Railroad Agree-ments The initiation of these agreements is done by thedistrict Utilities Section Further information is available
in the Utilities Manual, M 22-87.
V:DM2
September 1990
Trang 5Permits and Approvals
Approval Grantor Conditions Requiring When To Initiate Applies References
buoys )
require FAA notice)
bogs, sloughs, potholes )
23 CFR 138
Preservation ActS106
document
any state waters (culvert work, realign- document ment, bridge replacement, etc.)
certification of compliance with state water quality standards is necessary
(Flood plain Mgmt.)
Figure 240-1a
September 1990
Trang 6Approval Grantor Conditions Requiring When To Initiate Applies References
Zone Management program (Shoreline Management Act)
33 USC 1344 RCW 90.48.260
state waters
a waste discharge permit or water quality certification
pesticide use, hydraulic permits, shoreline permits, reforestation, etc.
high and steeper than 1:1
interfering with normal public use of water Development within 200 feet of water must be consistent with the local Shoreline Master Plan.
of materials over $500
relocation, rest area construction ) DOE: greater than 14,500 gpd, surface water discharge, or a mechanical treatment process involvement.
DSHS: 3.500 gpd to 14,500 gpd.
County: less than 3,500 gpd.
FHWA — Federal Highway Administration
FWCA — Fish and Wildlife Coordination Act
FWPCA — Federal Water Pollution Control Act
Figure 240-1a
V:DM2
September 1990
Trang 7FAA NOTICE REQUIREMENT RELATED TO HIGHWAYS
Trang 8DNR AREA MANAGEMENT UNITS
Trang 9Design Manual Value Engineering
function, generate alternatives through the use ofcreative thinking, and provide the needed func-tions to accomplish the original purpose; thusassuring the lowest life cycle cost without sacri-ficing safety, necessary quality, or environmentalattributes Value Engineering is sometimesreferred to as Value Analysis (VA) or ValueManagement (VM)
Project The portion of a transportation facility
that WSDOT proposes to construct, reconstruct,
or improve as described in the State Highway
System Plan or applicable environmental
docu-ments A project may consist of several contracts
or phases over several years that are studied
together as one project.
The VE process uses the Eight-Phase Job Plan
in Figure 315-1 Only the phases 1 and 7 arediscussed in this chapter A detailed discussion ofphases 2 through 6 is in the VE training manual
entitled Introduction To Value Engineering
Principles and Practices.
(1) Selection Phase
(a) Project Selection
Projects for VE studies may be selected fromany of the categories identified in the Highway
Construction Program including, Preservation
or Improvement projects, depending on the size
and/or complexity of the project In addition tothe cost, other issues adding to the complexity ofthe project design are considered in the selectionprocess These complexities include: criticalconstraints, difficult technical issues, expensivesolutions, external influences, and complicatedfunctional requirements
A VE study is required for any federally fundedNHS project with an estimated cost of $25million or more (CFR 23 Part 627) Other types
of projects that usually provide the highestpotential for value improvement have a prelimi-nary estimate exceeding $2 million and includeone or more of the following:
Value Engineering is a systematic process
designed to focus on the major issues of a
com-plex project or process It uses a multidisciplined
team to develop recommendations for the
impor-tant decisions that must be made The primary
objective of a Value Engineering study is Value
Improvement.
For projects, the value improvements might be
improvements in scope definition, functional
design, constructibility, coordination (both
internal and external), or the schedule for project
development Other possible value improvements
are reduced environmental impact, reduced
public (traffic) inconvenience, or reduced project
cost The Value Engineering process
incorpo-rates, to the extent possible, the values of the
design engineer, construction engineer,
mainte-nance engineer, contractor, state and federal
approval agencies, local agencies, other
stake-holders, and the public Important design
decisions are formulated from the
recommen-dations of the Value Engineering team
CFR 23 Part 627 Value Engineering
Value Engineering for Highways, Study
Workbook, U S Department of Transportation,
FHWA
Introduction To Value Engineering Principles
and Practices, Transportation Partnership in
Engineering Education Development
(TRANSPEED), University of Washington
Value Engineering (VE) A systematic
application of recognized techniques by a
multidisiplined team to identify the function of
a product or service, establish a worth for that
Trang 10Value Engineering Design Manual
• Projects with alternative solutions that vary
the scope and cost
• New alignment or bypass sections
• Capacity improvements that widen an
existing highway
• Major structures
• Interchanges on multilane facilities
• Projects with extensive or expensive
environmental or geotechnical requirements
• Materials that are difficult to acquire or
require special efforts
• Inferior materials sources
• Major reconstruction
• Projects requiring major traffic control
• Projects with multiple stages
On a biennial basis, the state VE manager
coordi-nates with the region VE coordinators to prepare
the two-Year VE Study Plan with specific
projects scheduled by quarter The VE Study
Plan is the basis for determining the projected
VE program needs including team members,
team leaders, and training The Statewide VE
Study Plan is a working document and close
coordination is necessary between the Olympia
Service Center (OSC) and the regions to keep
it current
The regional VE coordinator:
• Identifies potential projects for VE studies
from the Project Summaries and the available
planning documents for future work
• Makes recommendations for the VE study
timing
• Presents a list of the identified projects to
regional management to prioritize into a
regional Two-Year VE Study Plan (VE
studies other than projects are also included
in the plan.)
The State Design Engineer:
• Reviews the regional Two-Year VE Study
Plan regarding the content and schedule of
the plan
The state VE Manager:
• Incorporates the regional Two-Year VEStudy Plans and the OSC Study Plans tocreate the Statewide VE Study Plan
Selecting the project at the appropriate stage ofdevelopment (the timing of the study) is veryimportant to the success of the VE program.Value can be added by performing a VE studyany time during project development; however,the WSDOT VE program identifies three win-dows of opportunity for performing a VE study
1 Problem Definition Stage
As soon as preliminary engineering tion is available and the specific deficiencies
informa-or “drivers” are identified, the project scopeand preliminary cost are under consideration.This is the best time to consider the variousalternatives or design solutions and there isthe highest potential that the related recom-mendations of the VE team can be
implemented At the conclusion of the VEstudy, the project scope, preliminary cost,and major design decisions can be based onthe recommendations
When conducting a study in the problemdefinition stage, the VE study focuses onissues affecting project “drivers.” This stageoften provides an opportunity for buildingconsensus with stakeholders
At the conceptual design stage, the projectscope and preliminary cost have already beenestablished and the major design decisionshave been made Some PS&E activities mighthave begun and coordination has been
initiated with the various service units thatwill be involved with the design At thisstage, the established project scope, prelimi-nary cost, and schedule will define the limits
of the VE study There is still opportunity for
a VE study to focus on the technical issuesfor each of the specific design elements
Trang 113 30 % Development Stage
At the 30% stage, most of the important
project decisions have been made and the
opportunity to affect the project design
is limited The VE study focuses on
constructibility, construction sequencing,
staging, traffic control elements, and any
significant design issues that have been
identified during design development
To initiate a VE study, the project manager
submits a Request for Value Engineering Study
form (shown in Figure 315-2) to the regional
VE coordinator at leastone month before the
proposed study date
The regional VE coordinator then works with the
state VE Manager to determine the team leader
and team members
The design team prepares a study package that
includes project information for each of the team
members A list of potential items is shown in
Figure 315-3
The region provides a facility and the equipment
for the study (Figure 315-3)
The quality of the VE study is dependent on the
skills of the VE team leader This individual
guides the team efforts and is responsible for its
actions during the study The best VE team leader
is knowledgeable and proficient in transportation
design and construction and in the VE study
process for transportation projects
For best results, the team leader should be
certified by the Society of American Value
(SAVE) as a Certified Value Specialist (CVS)
or as a Value Methodology Practitioner (VMP)
Team leadership can be supplied from within the
region or from other regions, OSC, consultants,
or other qualified leaders outside the department
The state VE Manager coordinates with the
regional VE coordinator to select the team leader
A statewide pool of qualified team leaders is
maintained by the state VE Manager
The VE team is usually composed of five toeight persons with diverse backgrounds that arerelevant to the specific study The team membersmay be selected from the regions, OSC, otherstate and federal agencies, local agencies, andthe private sector
The team members are selected on the basis ofthe kinds of expertise needed to address the majorfunctional areas and critical high-cost issues ofthe study All team members must be committed
to the time required for the study For best results,the team members have had VE training beforeparticipating in a VE study
The time required to conduct a VE study varieswith the complexity and size of the project, buttypically ranges from three to five days
The VE study Final Report and Workbookinclude a narrative description of project inputinformation, background and history, constraintsand drivers, VE team focus areas, and a discus-sion of the team speculation, evaluation, andrecommendations All of the team’s evaluationdocumentation (including sketches, calculations,analysis, and rationale for recommendations) isincluded in the Workbook as part of the FinalReport The number of copies of the FinalReport and Workbook is specified by theproject manager
(2) Implementation Phase
The VE team’s recommendations are included
in the Final Report and Workbook The projectmanager reviews and evaluates the recommenda-tions and prepare a VE Decision Document Thisdocument has a specific response for each of the
VE team recommendations and a summarystatement containing the managers’ decisionsand schedule for implementation regardingfurther project development
The VE Decision Document also includesestimated costs or savings of the recommenda-tions as well as the estimated cost to implementthe recommendations A copy of this document issent to the state VE Manager so the results can beincluded in the annual VE report to FHWA
Trang 13Value Engineering Design Manual
Project Title:
Assigned Project Engineer
Proposed Advertising Date
Request for Value Engineering Study
Figure 315-2
Trang 14Design Manual Value Engineering
Up to Date Large Scale Aerial Photographs Standard Specifications
Red Book - Field TablesUnit Bid Prices
CalculatorsScissors
* Not all information listed may be available to the team depending on the stage of the project
** If field trip is not possible, provide video of project
VE Study Team Tools
Figure 315-3
Trang 15Design Manual Design Matrix Procedures
replacement; joint and shoulder repair; and bridgework such as crack sealing, joint repair, seismicretrofit, scour countermeasures and painting.Preventive maintenance projects must notdegrade any existing safety or geometric aspects
of the facility
In Design Matrices 1 and 2 and in Figure 330-1,
the term New/Reconstruction includes the
following types of work:
• Capacity changes: add a through lane, convert ageneral purpose (GP) lane to a special purposelane (such as an HOV lane), or convert a highoccupancy vehicle ( HOV) lane to GP
• Other lane changes: add or eliminate acollector-distributor or auxiliary lane (Arural truck climbing lane that, for its entirelength, meets the warrants in Chapter 1010
is not considered new/reconstruction.)
• Pavement reconstruction: full depth PCC or
AC pavement replacement
• New interchange
• Changes in interchange type such as diamond
to directional
• New or replacement bridge (main line)
The HAL, HAC, PAL, and Risk location
mentioned in the notes on Design Matrices 3, 4,and 5 are high accident locations (HAL), highaccident corridors (HAC), pedestrian accidentlocations (PAL), and locations that have a highprobability of run-off-the-road accidents based
on existing geometrics (Risk)
The Non-Interstate Freeway mentioned on
Design Matrices 3, 4, and 5 is multilane, dividedhighway with full access control
The Master Plan for Access Control mentioned
in the notes on Design Matrices 3, 4, and 5 isavailable from the Olympia Service Center,Design Office, Access and Hearings Unit
The corridor or project analysis mentioned in
notes 2 and 4 (on Design Matrices 3, 4, and 5)
is the justification needed to support a change
This highway Design Manual provides guidance
for three levels of design for highway projects:
the basic, modified, and full design levels The
design matrices in this chapter are used to
iden-tify the design level(s) for a project and the
associated processes and approval authority for
allowing design variances The matrices address
the majority of preservation and improvement
projects and focus on those design elements that
are of greatest concern in project development
The design matrices are five tables that are
identified by route type Two of the matrices
apply to Interstate highways The other three
matrices apply to preservation and improvement
projects on non-Interstate highways
The National Highway System (NHS) consists
of highways designated as a part of the Interstate
System, other urban and rural principal arterials,
and highways that provide motor vehicle access
to facilities such as and a major port, airport,
public transportation facility, or other intermodal
transportation facility The NHS includes a
highway network that is important to the United
States strategic defense policy and provides
defense access, continuity, and emergency
capabilities for the movement of personnel,
materials, and equipment during times of war and
peace It also includes major network connectors
that provide motor vehicle access between major
military installations and other highways that are
part of the strategic highway network
The Preventive Maintenance mentioned under
project type on Interstate Design Matrices 1 and 2
includes roadway work such as pavement
patching; restoration of drainage system; panel
Trang 16Design Matrix Procedures Design Manual
in design level from the indicated level The
analysis can be based on route continuity, and
other existing features, as well as the
recommen-dations for future improvements in an approved
Route Development Plan
(1) Project Types
Diamond Grinding is grinding a concrete
pavement to remove surface wear or joint
faulting
Milling with AC Inlays is removal of a specified
thickness of asphalt surfacing, typically from the
traveled lanes, and then overlaying with asphalt
concrete at the same specified thickness
Nonstructural Overlay is an asphalt concrete
pavement overlay that is placed to minimize the
aging effects and minor surface irregularities of
the existing asphalt concrete pavement structure
The existing pavement structure is not showing
extensive signs of fatigue (longitudinal or
alliga-tor cracking in the wheel paths) Nonstructural
overlays are typically less than 40 mm thick
AC Structural Overlay is an asphalt concrete
pavement overlay that is placed to increase the
load carrying ability of the pavement structure
Structural overlay thickness is greater than or
equal to 40 mm
PCC Overlay is a Portland cement concrete
pavement overlay of an existing PCC or
AC pavement
Dowel Bar Retrofit is re-establishing the load
transfer efficiencies of the existing concrete
joints and transverse cracks by the cutting of
slots, placement of epoxy coated dowel bars,
and placement of high-early strength,
non-shrink concrete
Bridge Deck Rehabilitation is repair of any
delaminated concrete bridge deck and adding
a protective overlay that will prevent further
corrosion of the reinforcing steel
Safety, All Others includes collision reduction,
collision prevention, channelization, and
signalization projects
Safety, At Grade is a project on a multilane
highway to build grade separation facilities that
replace the existing intersection
Bridge Restriction projects are listed under
economic development because these bridges donot have any structural problems However, if thevertical or load capacity restrictions are removed,then it will benefit the movement of commerce
(2) Design Elements
The following elements are shown on the DesignMatrices If the full design level applies, seethe chapters listed below If basic design levelapplies, see Chapter 410 If the modified designlevel applies, see Chapter 430
Horizontal Alignment is the horizontal attributes
of the roadway including horizontal curvature,superelevation, and stopping sight distance; allbased on design speed (See Chapter 620 forhorizontal alignment, Chapter 640 forsuperelevation, Chapter 650 for stopping sightdistance, and Chapter 440 for design speed.)
Vertical Alignment is the vertical attributes of
the roadway including vertical curvature, profilegrades, and stopping sight distance; all based ondesign speed (See Chapter 630 for verticalalignment, Chapters 440 and 630 for grades,Chapter 650 for stopping sight distance, andChapter 440 for design speed.)
Lane Width is the distance between lane lines.
(See Chapter 640.)
Shoulder Width is the distance between the
outside or inside edge line and the edge ofin-slope, or face of barrier (See Chapter 640.)
Lane and Shoulder Taper (pavement
transitions) are the rate and length of transition
of changes in width of roadway surface (SeeChapters 440 and 620.)
Median Width is the distance between inside
edge lines (See Chapters 440 and 640.)
Cross Slope, Lane is the rate of elevation change
across a lane This element includes the algebraicdifference in cross slope between adjacent lanes.(See Chapter 640.)
Cross Slope, Shoulder is the rate of elevation
change across a shoulder (See Chapter 640.)
On/Off Connection is the widened portion of
the main line beyond the ramp terminal (SeeChapter 940.)
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process A design exception must be identified in
the project documents but no further justification
is required
Evaluate upgrade (EU) in a matrix cell indicates
that an existing nonstandard condition must be
evaluated to determine the impacts and cost
effectiveness of upgrading to the applicable
design level The decision whether or not to
upgrade, and its analyses and justification,
must be provided in the project documentation
See Chapter 330
A deviation is required when an existing or
proposed design element does not meet or exceed
the applicable design level for the project and
neither DE nor EU processing is indicated
Documentation of a deviation must contain
justification and it must be approved at the
appropriate approval level The analyses and
justification must be provided in the deviation
request See Chapter 330 for requirements
P65:DP/DMM
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Beginning Begin Ending End State Route NHS Route Designation SR MP ARM SR MP ARM
This list provided by the OSC Planning Office
NHS Highways in Washington
Figure 325-2a
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NHS Highways in Washington (continued)
SR 524 Spur Cedar Way Spur - Lynnwood Park and Ride to I-5 4.64 0.00 5.14 0.50
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P Preservation — Preserve the highway infrastructure cost effectively to protect the public
investment
1 Repave highways at regular intervals to minimize long-term costs
2 Restore existing safety features
1 Refurbish rest areas to extend service life and improve safety
2 Construct weigh facilities to ensure enforcement across the entire highway system
3 Refurbish electrical systems, electronics, and mechanical systems to extend service life
and improve safety Rehabilitate or replace existing major drainage features to preserveoperational and structural integrity
4 Stabilize known unstable slopes
5 The program support subcategory consists of critical construction support items that arerequired to maintain efficiency and ensure continued progress of the construction programs
Paraphrased excerpt from the State Highway System Plan, State Highway System Plan Service Objectives and Action Strategies.
Preservation
Catastrophic Reduction
Rest Areas
Weigh Stations
Unstable Slopes
Program Support
Major Drainage
& Electrical
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I1 Mobility — Improve mobility within congested highway corridors.
1 Mitigate congestion on urban highways in cooperation with local and regional jurisdictionswhen the peak period level of service falls below Level of Service D
2 Provide uncongested condition (Level of Service C) on rural highways
3 Provide bicycle connections along or across state highways within urban growth areas tocomplete local bicycle networks
4 Complete the Freeway Core HOV Lane System in the Puget Sound region
5 Provide uncongested conditions (Level of Service C) on high occupying vehicle (HOV) lanes
I2 Safety — Provide the safest possible highways within available resources.
1 Improve highway sections that have a high accident history
2 Improve geometrics of the Interstate System per the Federal Highway Administration
(FHWA)/WSDOT Stewardship Agreement
3 Improve roadways where geometrics, traffic volumes, and speed limits indicate a high accidentpotential
4 Eliminate major at-grade intersections on multilane highways with speed limits of 45 mph
or higher
5 Construct intersection channelization, signals, or both when traffic volume warrants
(thresholds) are met
Paraphrased excerpt from the State Highway System Plan, State Highway System Plan Service Objectives and Action Strategies.
Restricted Bridges
Collision Reduction
Collision Prevention
HALs HACs
Interstate Safety Matrix Risk At-Grades Signals &
Channelization
I3 Economic Initiatives
I4 Environmental Retrofit
Scenic Byways
Stormwater
Fish Barriers
Noise Reduction
Air Quality
PALs