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ACTT Workshop - Project Pegasus

September 9-11, 2003
Dallas, Texas

Appendix C - Skill Set Reporting Forms

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Environmental Skill Set


  • Jim Barta, TxDOT ENV
  • Tom Bruechert, FHWA Texas
  • Elvia Gonzalez, TxDOT ENV
  • Craig Hancock, TxDOT Dallas
(Short Name)
(Detailed Description)
Implementation Details
(Barriers, Skill Set Coordination, etc.)
Stemmons Park Section 4(f) Properties Constraint Sliver taking = 14% (0.67 ac), individual section 4(f) needed
  • Design will provide avoidance minimization details for section 4(f) document-link to Design skill set
  • Need Mitigation
  • Bike/Ped Trail under I-35E at Stemmons Park and Oak lawn Ave. (land link option)-look into TxDOT policy
  • Trees (as enhancements)
  • Adjacent land purchase option south of Stemmons Park-Link to R.O.W. skill set
  • Dallas Tree Ordinance, Local need for a replacement for any trees impacted
  • Relocate Stemmons live oak trees to new 4(f) property-link R.O.W. and Design skill set
Trinity Parkway Constraint Southern Gateway? Reliever route for Pegasus, capacity and timing issues
  • City of Dallas proposal 6-4-6 lanes versus MIS 8-6-8 lanes recommended
  • What happens if we shut down the Canyon?
  • Timed closure/reduced tolls on Trinity to accommodate capacity
  • 11' lanes used on Trinity (issue?)
  • March 2012 potential Trinity opening affects start date of Pegasus
  • 2015 potential start on Southern Gateway
  • Link to project managers on adjacent project
Historic Properties Constraint Historic properties Bridge and Historical District
  • Coordination time
  • Mitigation need for adverse effect
  • Structures group option of bridge over viaduct was eliminated
Hazardous Materials Issue Constraint (continued on the next page) Environment assessments previously performed have identified relative risk areas. Use new data derived from Trinity Parkway project.
  • Develop soil management plans developed for screening excavated soils to determine reuse or disposal
  • Develop groundwater monitoring of sump collection areas to establish baseline levels and monitor for changes to baseline levels
  • Develop contingency plans incorporating a decision matrix on handling the contaminated soils and groundwater as encountered during construction
  • Negotiate contracts for the disposal of highly contaminated soils and groundwater
  • Coordination with skill sets for needed space requirements of on site soil/GW staging areas?
  • Investigate new technologies for quantifying subsurface contamination in place?
Context Sensitive Design opportunity Address urban design issues
  • 1% set aside = $7.5 million, additional money from green ribbon possible
  • Potential deck or lid over the canyon at - $25 million cost as an enhancement to the city of Dallas civic amenities-option to use lid as staging area first
  • Old Mill Creek-open to surface view shed to mitigate water resource impacts if needed
  • City of Dallas options need to known ASAP (construction constraints)
  • Stream restoration and coordination time
  • Creative financing needed potentially SIB loans and TIFIA
  • Link to Design R.O.W., Design, Construction, Financing, etc
Project Opportunities Opportunities to enhance
  • Putting a lid on the Canyon potential staging area for construction?
  • Raising Old Mill Creek prior to construction, if needed for mitigation
  • Mitigating Stemmons Park and linking it to the Katy Trail System
  • On upper Stemmons is the development and identification standards for the Dallas design district and for Hospital/market center area
  • For the Mixmaster area development of a portal gateway entrance to downtown Dallas
  • The creation of a transportation corridor wide signature setting for the gateway bridges over the Trinity river on I-30 and I-35
Socio-Economic Semi-resolved Liquor stores, displacements of residential properties, EJ issues appeared to be okay
  • Relocation assistance program
Old Mill Creek Constraints City of Dallas options need to known (construction constraints)
  • Nation wide permits
  • Stream restoration and coordination time
  • It is a probable Hazardous Materials issue due to early industrial sites
  • Limits the vertical profile of the Canyon
Noise (issue pending) Residential Area exterior, Hotels interior
  • Noise study needed
  • Noise barrier consideration
  • Reasonable and feasible
NWPs (issue pending) Multiple permits may be necessary
  • With or without PCN?

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Geotechnical/Materials Skill Set


  • Chris Dumas - FHWA, NRC, Baltimore Office, External Team Leader for project, group leader
  • Ghassan "Gus" Khankarli - TxDOT, Bridge Section, Dallas District, co-leader of group
  • Marcus Galvan - TxDOT, Bridge Division, Geotech Section
  • Barry Siel - FHWA, Geotech Engineer
  • James Sheehan - HDR, Geotech Engineer
  • German Claros - TxDOT, Research Office
IssueIdeaImplementation Details
Accelerated Design

Efficient Designs

Efficient Construction

Minimizing problems that cause design delays

Minimizing problems, and costs, that cause construction delays and claims
Multiphase rapid site investigation beginning before the record of decision (ROD) is signed. Note: this is site survey and project feasibility work, and not design work. Therefore, it can proceed prior to the ROD.

Work will focus on the following objectives:

  • Determining overall geotechnical site conditions and consolidating the project into common geotechnical zones (CGZ) with corresponding soil profiles and parameters for each CGZ.
  • Identify problematic soil conditions
    • Soft ground needing improvement
    • Contaminated soil and water
    • Expansive and high sulfate soils
    • Underground creeks, rivers, voids, manmade miscellaneous fills and obstructions.
  • Begin evaluation of appropriate foundation alternatives (loads can be obtained from previous interchange designs). Cost, speed, environmental issues.
  • Begin evaluation of appropriate retaining wall types. Cost, speed, environmental issues, resolution of aesthetics issues, future additions to wall
NOTE: The data collected and calculated, as outlined to the left, is not alignment or construction sequence dependent. It is a highly flexible approach, which will allow the rapid evaluation of multiple project scenarios. Also, this is not the total site investigation. It is only the work to BEGIN prior to the ROD.
  • Utilize all existing soil, environmental, and previous construction information prior to developing and executing the first phase site investigation.
  • First phase should primarily use rapid geophysical/nondestructive methods, cone penetrometer testing (CPT), Dilatometer Testing (DMT), and CPT derived soil contamination testing.
  • Using first phase data, execute second phase with limited high quality SPT and monitoring wells.
  • Implement a GIS data format compatible with the project plans.
New and existing utilities including storm water drainage are a dictating factor in design and construction speed. They can be as important of a design consideration as an earthquake in terms of cost and time.
  • Because they inhibit rapid construction, existing utilities need to be identified and removed as early as possible because of construction delays, cost of temporary shoring and support.
  • If you want the project to go fast, utility relocation should not wait for all design work to be complete, or for construction to begin. The goal should be to have them moved before general construction contracts begin-as with the artery. Utility relocation should not wait until they are all resolved. Move what ever you can as soon as you can.
  • Mitigate impacts to 100-year old 96-inch brick sewer line along centerline of IH35E
  1. Develop a schedule for utility identification.
  2. Develop a detailed itemized list of utilities to be moved with a detailed schedule for relocation of each itemized utility-dates for issues to be resolved, who's waiting on who, when it is to be advertised.
  3. Don't talk about it, get on with it. Put those involved with utilities at the top of the list to produce first.
  4. Other Details
    • Early identification of conflicts with structures/foundations and other geotechnical features
    • Line it or bridge it over existing embankment or use lightweight fill
Problematic Soils for Pavement Subgrades (Including Expansive Clays & High Sulfate Content Soils)
  • Detailed geotechnical investigation including sulfate soil determination
  • Stabilization of thick subgrade layers
  • Sulfate soil stabilization
  • Use of non-destructive equipment such as a GPR (ground couple) is recommended
  • New conductivity and colimeter tests should be used for the determination of sulfate content.
  • Use deep soil mixing techniques and massive soil stabilization
  • Engineering solutions with existing stabilization agents (lime and cement) or use new stabilization agents (Laboratory tests should ensure that the new stabilizers are effective)
Groundwater Conditions
  • Find problems early in the design process and before construction
  • Water Table Elevations
  • Underground rivers/creeks (Canyon Section)
  • Contaminated water/soils
  • Establish long-term automated groundwater monitoring program, using automatic data acquisition piezometers. This program should acquire data for at least one full annual cycle
  • Preliminary geotechnical investigation that identifies potential contamination problems if Phase I/Phase II environmental assessment not available or too broad
  • Sampling and testing contaminated water/soils using rapid in-situ tests
  • Establish a management plan that addresses the known and unknown contamination issues that might come up during construction. This process should start early on in the preliminary design process and can be refined as the design/conditions warrant.
Rapid Construction
  • Bridges
  • Embankments
  • Lowering of grade under bridges
  • Accelerated design
  • Foundation contracts preceding completion of final bridge design
  • 24/7 construction with lane-closing activities scheduled for minimal times of traffic
  • Use of EPS blocks, geofoam and flowable fills at critical bottlenecks during project
  • Pre-cast pavement sections or support sections
  • Multi-phased rapid site investigation beginning before record of decision is signed
Phasing of Work Coordinate wall design/traffic control development Have traffic section and wall designer involved at beginning of design process to insure that both are optimized to minimize redundancy in construction.
Chapter 5.
Retaining Walls
Redundant or unnessesary walls
for phasing of work add time to construction
Reduction of the need for temporary and/or permanent walls saves time
Consider future loading conditions, road widening or park decks
Require coordination meetings between traffic planning, wall designers and geotechs, early and often in the project.

Have independent review of plans at 30% and 60% design level for this issue.

Failure to plan and design for future expansion of adjacent facilities causes additional construction delays in the future Consider future plans (i.e.; structure support, wall removal, future expansion of parks) during design. Discuss and coordinate with all related agencies (including DOT) to determine future plans in area.

Where feasible, design walls, bridges, and other facilities to handle these future facilities

Insufficient/inaccurate ground survey can cause field modification of wall limits and redesign during construction Obtain accurate survey and topographic information and accurately define wall limits and heights
  • Obtain good initial survey/topographic information of existing conditions and supplement as needed during design process.
  • Identify cut, fill and cut/fill transition locations.
  • Limit slope in front of wall to 6:1 max, if possible.
  • Review anticipated wall limits for possible problems and make field view of areas prior to 60% and final plans
Modification of wall foundations and details for changed conditions during construction causes delays Obtain geotechnical data early in project and supplement as needed during design. (e.g.; High groundwater table, soft soils and contaminated soils)
  • Identify high water table, soft soils.
  • Identify contaminated soils.
  • Perform necessary laboratory tests to analyze short and long-term conditions and provide design parameters.
Inclusion of aesthetic treatments can cause delays to construction if not well planned and executed Aesthetic treatments may have a profound impact on wall design, detailing, and construction.
  • Resolve aesthetic treatments early.
  • Review affect of including treatments on construction schedule and sequencing (can discuss with Contractors/Suppliers, etc.)
  • Modify details accordingly if they cause excessive delays.
Efficient use of on-site materials can reduce waste and borrow Large volumes of recycled concrete will be produced as part of this construction process and should be reused, if possible.
  • Consider the use of recycled concrete
  • If used, establish specifications for use of materials

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Structures Skill Set


  • Ray Fisher, TxDOT Dallas Bridge
  • Claude Napier, FHWA - VADIV
  • Gregg Freeby, TxDOT - Bridge Div
  • Ted Zoli, HNTB Corporation
  • Vijay Chandra, Parsons Brinkerhoff Inc.
  • Tony Okafor, TxDOT Dallas Bridge
(Short Name)
(Detailed Description)
Implementation Details
(Barriers, Skill Set Coordination, etc.)
1. Structure development report Structure Types:
  • Overpass
  • Main lane
  • Low level
  • Mid level
  • High level
  • Retaining walls

High Performance
Protection Strategy
Foundation Requirements
Maximize use of Standardized structures/elements
Maximize use of Prefabricated structures/elements
Consider preformed lightweight fill

Group bridges to maximize standardization.
Coordinate with Geotechnical/materials.
Construction integration.
Consider manufacturing processes in design and construction.
2. Bid contract at 30% complete Designer prepares Bridge plans to 30% with quantities +-20%
Advertise and select contractor. Then contractor works with designer and owner to complete plans and construct project
Innovative Contracting and Construction skill set coordination.
Implements partnering at very early stage to benefit owner, designer & contractor. Designer of record follows through entire project. Implements contractor's means and methods. Creates win/win/win situation for owner/designer/contractor.
Flexible for single or multiple contracts.
3. Prefabricated construction Pre-cast Substructure:
  • Abutments, bents, columns. Post tension elements together for continuity

Pre-cast superstructure:

  • Slab, girders, segmental boxes or prefabricated superstructure units
Prefabricated superstructure units require match casting
4. Construction techniques that minimize traffic impact Incremental launching: Build bridge at one end and launch across at desired location.
Lateral Slide: Build bridge adjacent to the existing structure. When complete, demolish old bridge and move new bridge into position
Balanced Cantilever ~ Segmental construction.
Heavy Lifts
Incremental launching does not interrupt underlying traffic. Work can be done over traffic or with minimal stoppages.
5. Temporary Bridges Use prefab modular bridges for temporary structures or develop standardized modular bridges. Reusable, multiple uses reduce cost. Cost could be amortized over multiple projects. When project is completed, give bridge to county or city for bridge replacement. Could also be stockpiled for future emergency or security use
6. Demolition of existing bridges Use crushed concrete as select backfill for MSE walls Requires coordination with Geotech/Materials
7. Advanced Foundation Contract Based on BDR determine foundations that can be constructed ahead of time Coordinate with geotechnical skill set, could save 6 to 12 months of construction time on large bridges
8. Pre-buy Beams Have single designer develop all beam layouts and designs.
Then pre-buy all beams and supply them to the various contractors as needed.
Beam storage versus hauling 100 miles
9. Preformed lightweight fill Expanded foam blocks combined with fill to speed retaining wall backfill Also suggested by Geotechnical.
Included in item 1.
10. Thru Girder Pre-cast segmental thru girder sections post tensioned together Ideally suited to narrow structures where vertical clearance is an issue.
11. Corrosion protection strategy Need corridor corrosion protection scheme Included in item 1
12. Non-peak construction Close and replace structure over a weekend.
(Friday 10:00 PM to Monday 6:00 AM)
Replace structure at night (7:00 PM to 6:00 AM)
Coordinate with construction and innovative contracting
13. Move Interchange Shift I30 / I35 interchange from split to a single location possibly above Houston St Viaduct Disadvantage: Puts interchange above historic bridge ruining setting. Puts forest of columns in one of the proposed lakes of the Trinity Pkwy project. Impacts local access to city streets.
Follow up discussion was provided on reasons for rejecting this alternative earlier in the project development.
14. Relocate UPRR1 Relocate UPRR away from downtown Problems - requires cooperation of RR
NO good location to relocate to
Other side of Trinity is up for rejuvenation by City of Dallas, they would not like a RR there.
Moving very far impacts low income housing.
15. Relocate UPRR2 Minimal shift in alignment to allow construction of new bridge parallel to the existing structure so that no temporary bridges are required RR people tell us Stemmons RR Crossing needs to be 2 tracks -They propose shifting alignment to north and build new bridge on new alignment. We suggested using 300' trussCanyon crossing - existing pier is in center of HOV lane. Need to replace bridge- suggest using single span rather than multi-span for flexibility.
16. Durability Design for durability, constructability, inspection and maintenance. Select materials and develop details to enhance these concepts.

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Right-of-Way, Utilities, Railroad Skill Set


  • Suku Banerjee, DART
  • Jesse Cooper, TxDOT ROW Division
  • Del Crouser, City of Dallas
  • Jane Deford, TxDOT Dallas
  • Kathy Facer, FHWA, HQ
  • Bob Frascella, Jacobs Civil
  • Robert Memory, NCDOT
  • Dick Moeller, O R Colan
  • Khali Persad, University of Texas
  • Doug Vollette, TxDOT Traffic Operations Division
  • David Walterscheid, FHWA
  • Janna Wampler, TxDOT Dallas
  • Scott Stockburger, TxDOT Dallas
(Short Name)
(Detailed Description)
Implementation Details
(Barriers, Skill Set Coordination, etc.)
Post Office Federal Land Transfer - traffic circulation for their trucks; changing their truck staging area
Avoid impact altogether. Change truck circulation
FHWA involvement at HQ level may be necessary to negotiate a transfer. May take up to 18 months to negotiate. Change design to avoid impact
2 residential, 21 displacements
$26 M +Up to 150 parcels
Costs could be $75 M R/W, $300 M Utility, $15 M Railroads
Early acquisition
Use TTA authority, City or County of Dallas to do early acquisition
Work with design to identify whole takes and partial takes where building is affected
Identify and begin acquiring "critical" parcels for construction, staging/laydown areas
Recently passed legislation, need implementing rules from Austin for use on this project
Start after FONSI
Encourage early acquisition for hardship and protective buying
Utility adjustments of $150 M +

96 inch sewer in median of I-35; substation at AA arena will go underground; fiberoptics. Looking for firm to assist TxDOT in utility agreements/coordination with design phase
Consider location of new pilings, bents, etc.
Need tangible timeline to seek FHWA authorization
Need up to three years lead time for utility companies to determine impact on their facilities, reach agreement, design and relocate or include in highway contract
Define possible exceptions to design
Utilize MOU with utility companies - need to establish what they want
Establish time restraints or moratoriums for splicing telephone facilities
May include options like 24 hour splicing, off peak hours for telephone facilities
Use incentive/disincentive if utilities included in construction contract
Allow TxDOT to acquire for utility corridors
Utilize Trinity river corridor for utility culvert
Utilities will be adjusted by road contractor as part of project or by one utility contractor
Get firm on board for this project as pilot for TxDOT - firms are limited
Utilize dedicated utility corridor for placement (culvert)
SUE contracts
Must establish ground rules for when a corridor is "full" causing some utilities to relocate to new areas outside of project right-of-way
Emergency services needs; can utilities be down for some periods of time?
Share with construction and geometric design groups
Cannot currently acquire for utilities, need legislation or some type of waiver?
$10,000 per foot for buried transmission lines
Define utilities as part of the transportation facility Enable TxDOT to better manage utilities on the R/W Legislation needed
Info Mart Significant lead time for adjustments
Numerous fiber optics and others
TxDOT receives $100,000 per year on rental of airspace under bridge
Allow several years notice to plan for reroute or relocation for highway construction
Work with contractor to preserve/protect parking for Market
Utility adjustment Seasonal usage needs to be considered Electrical adjustments in winter, fiber optics and telephone in late spring/summer
Outsource acquisition contracts Project specific
Bring us the deed
One firm can handle 40 to 50 parcels
6 month process to get them on board
Handle all aspects and deliver deeds
Greater fee % payment for deed delivery, less for initial phases of acquisition process (retention to be used as incentive for completion on project basis)
Railroad Stage DART bridge replacement over Canyon on falsework
Demo and set new bridge during weekend outage
Shoefly and rebuild the bridge
Up to two years for RR agreements
Early coordination
Relocation of line on North end of Stemmons
Build second track at the east side of the existing bridge
Utility relocations up to one mile away for shoefly
Major temp easements and utilities within the RR corridors
Historic bridge
Requires advance planning with DART for service outage
Outsource Utility coordination contracts Coordinate with utility companies, Hwy designers
Prepare agreements, scheduling, billings, inspections, inclusion within construction contracts
Early planning meetings, SUE investigations, proposed location of facilities, investigation of conduits and corridors, oversight of utility plans
Right-of-way issues TIMELINE
Liquor license - where to move
Adult entertainment uses?
Billboard issues - legal locations
Coordinate with design and acquire "just in time" for segmented construction
Land consolidation/purchase of remainder properties
Joint use with City that may be able to utilize remainders and allow ED on whole property
Staging areas for Hazmat soils
Firm up the R/W cost estimates
City zoning would come into play
Dependent on funding - could shorten time considerably
Must decide on construction schedule and phasing of project activities
City needs to look at needs and enter agreement
Look at whole take possibilities caused by damages for remainder size
Reduce need to haul
Utilize preliminary R/W map to begin activities
Carroll Avenue Staging Areas Secure available property for contractor use as staging or laydown Maintain ownership of current property
Parking Affect parking significantly, acquire entire property as uneconomic remainder Early acquisition and use for assemblage, staging or other public use
Consider possible joint use agreement to mitigate parking impacts in highway airspace
Animal Shelter - SPCA Begin relocation early; non-profit organization with limited funds to execute a successful relocation
Explore whether functional replacement strategy would be applicable to this acquisition
Work with City and donors on alternate location with building to reduce costs
Austin approval
Residential/Commercial Relocations Begin relocations early, especially commercial
Cohesive community? What impacts?
Relocate within the community?
Strong church affiliation
DSS housing available?
Commercial moves may take up to two years
Renovate other housing within community to meet DSS
May have to renovate several homes
Involve the preacher and church elders
Early acquisition of structures - voluntary acquisition Offer to acquire early Businesses willing to relocate early avoid construction difficulties
Some businesses need extensive time for complex relocations
Loss of access Taking of access rights without additional right-of-way.
Closing drives with current access to frontage road.
Appraisal problems, need top notch appraiser
Work with Attorney Generals office early
4f parkland acquisition Acquire replacement lands for mitigation Early acquisition of adjacent lands will aide the environmental document
Quick take None allowed by TxDOT; only Toll authorities Pass legislation to allow quick take on statewide or on project by project basis as approved by the Commission
Delegation of approval authority Surplus disposals could be signed by District Engineer
Approval authority for administrative settlements
New regulations needed - Delegation by Commission
Approval of 10% over approved offer up to $100,000
Clarification of negotiations Ability to continue negotiations after the filing of ED papers Approval from Austin
Title Work Incentive payment for title company to deliver commitments and issue insurance. Risk management - no title insurance needed for parcels under $20,000; limited title search to determine last owner of record Legislative change
TxDOT regulations change

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Innovative Contracting/Financing Skill Set


  • Jerry Blanding, FHWA NRC
  • Charles Gaskin, TxDOT Houston
  • Jennifer Mayer, FHWA NRC
  • Wes McClure, TxDOT Dallas
  • Randy Pierce, Carter & Burgess
  • Sid Scott, Trauner Consulting Services
  • Rick Smith, Washington DOT
  • Juan Urrutia, TxDOT Construction Division
(Short Name)
(Detailed Description)
Implementation Details
(Barriers, Skill Set Coordination, etc.)
Total or Partial Closure Close portions of freeway for periods of time longer than just overnight, to allow faster completion Requires alternate routes - Trinity Parkway & Traffic Mgm
Plan in place to finalize
Extensive PR campaign
Environmental Constraints Mill Creek must be raised before project can commence.
Trinity Parkway project planned in advance of Pegasus.
ROD anticipated in 2007. This timing will affect choice of contracting methods.
Risk Management Allocation and mitigation workshops Conduct as precursor to development of RFP documents
Procurement Options
Special Prequalification   Makes sense if D-B-B used.
Multi-parameter (A+B+...) Bidding Bid both $ and time. Also, if applicable, bid traffic delay (differential travel time), quality, warranty, and other quantifiable parameters (A+B+C). Delay, pay deducts. Improve, get a bonus. What about a good PR campaign, for instance, that reduces delay and allows the contractor to get a bonus? Also, what about delays related to accidents, fires, etc.?
Lane rental Charge contractor for each lane closure  
Lane assessment Allow night closures, but assess stiff liquidated damages if closure time exceeded Difficult to monitor, but does get attention
Incentives/disincentives Incentives or disincentives based on:
Opening of new lanes;
Other open to traffic dates;
Opening ramps
Long-Term Warranties Require warranties on specific elements of work (e.g. pavement life)
Consider not requiring minimums like AASHTO, as they might limit innovation.
Acceptance by contractors is an issue. Bond to cover warranty is an issue, esal limits. Pay contractor later if warranty is not used? How to enforce warranty? Pay out from a retainage fund during warranty period. Might want to incorporate as part of other contracting method, e.g. Design-build.
Bid alternates Alternates for items, or lump sum bidding  
Third party agreements Statutes allow or require agreements w/ utilities, etc. Also possibility to use contractor to do work then utilities pay  
Raise Mill Creek in advance Mill Creek needs to be raised, use as mitigation for other work.
Once this is done, there is more design freedom for highway
Delivery Methods   Depends on timing. Single contract makes most sense
D-B-B Design-Bid-Build: Traditional low bid Considered second choice if alternative methods not feasible. If multiple construction packages used, get as much work done up front as possible (utility, alternate routes, etc.) before doing major construction packages.
Construction Manager At-Risk Agency  
Construction Manager/General Contractor Contractor on board at PE phase, owner owns risk and design, but contractor helps with constructability Viewed as a hybrid between D-B-B and D-B where contractor brought in at 30%. Use a GMP and adjust at final design.
Design-Build First choice overall. Several possible variations: DBOM, Design-Build, Design-Build-Maintain w/ annual payments for performance, etc. Entire project or pieces? Need coordination with other projects, e.g. Trinity Parkway
Construction group favors one large D-B contract. If not possible, then package low impact, up front portions (utilities, ramps, temporary structures) first, then do major project second.
Financing Options
Tolls/Managed Lanes Charge for access to some lanes - (not HOV, but general use) in order to subsidize the construction. Can incorporate variable pricing in order to manage demand/traffic flow. Must cover cost of installing toll equipment, limiting access. May face public opposition due to perception of "Lexus lanes" benefiting higher-income drivers (especially since project occurs near low-income areas).
Public-Private partnerships Private developer design, build, operate (maintain?) with reversion to state after payback and profit. Use of private equity could limit use of public debt to construct project. Texas law may not permit concession. Public may oppose involvement by private contractor (making profit off of tolls on formerly-public highway, even if new capacity added).
Tax increment financing City passes tax to fund portions of project directly benefiting or requested by city City may have difficulty borrowing against tax increment (speculative source of revenue). Must identify district that will benefit from project.
Shadow tolls Alternate means for paying contractor for construction and/or operation of project; based on road usage rather than completion or other metrics Does not actually bring net new revenue to the table; basically an alternate method of paying for project, but does not directly reduce costs.
Other Federal Funds Seek funding for economic development and other project elements from other federal agencies, including the Federal Emergency Management Agency (FEMA); Corps of Engineers; Housing and Urban Development, and any other eligible grants. City/County of Dallas would probably take the lead on identifying, seeking, and managing applicable grant funding. Grant funding may be limited.
Joint development agreements Develop some decks/lids and use proceeds to subsidize the construction of decks that do not have funding. Lease/sell ROW, where possible. Must find suitable development opportunities activities (e.g., hotel above freeway). Cost of reinforcing deck/lid in order to carry the weight of a building may outweigh potential revenues from development arrangement. Must design fair process for development proposals/awards.

FHWA rules on program income may require proceeds to be used on Federal-aid eligible projects.
TIFIA Direct Federal Credit assistance under the Transportation Infrastructure Finance and Innovation Act; provides loans, lines-of-credit, and loan guarantees at an interest rate comparable to the interest rate on a Treasury bond of similar maturity. Loan repayment based on project needs, but can extend as far out as 35 years. Could be especially applicable to a joint-development opportunity with the city and/or with private developers. Comes "off the top" (no effect on Texas's Federal-aid funding). TIFIA projects must be selected in national competition. DEIS must be circulated before application, and ROD or FONSI must be in hand prior to receipt of loan funds. City, county, and TTA could probably borrow at cheaper rates using existing bonding. (Developer may find TIFIA rates more attractive). Under current law, TIFIA projects must be at least $100 million (this project would easily meet this standard, as long as whatever element funded by the loan is considered part of the overall project). No more than 33 percent of eligible project costs can be covered by TIFIA loan (again, a standard that could be easily met if project is small component of $700+ million whole).

TIFIA proposal in SAFETEA would lower threshold for assistance to $50 million.
State Infrastructure Bank and/or TIFIA Low interest loans from state-capitalized bank. State can set terms, delaying repayment until up to five years after completion of construction, 35 years to repay, with low or no interest. Depending on funding available from Texas SIB, could be useful for financing smaller pieces, e.g. city improvements, etc. Could be particularly useful for spreading out city contribution to project over time. Reduces city/county need to issue debt.
GARVEE bonds Issue bonds against future federal funding - TxDOT law now allows borrowing in anticipation of Federal funds. Policymakers must determine tradeoff between current investment and future repayment; cost of interest should not outweigh benefit of achieving project sooner. Other areas may perceive borrowing solely for Dallas area project as unfair.
Performance Specifications Specifications requiring end-result or performance rather than exact methods Used either in conjunction with Design-Build, warranty, or other methods, or alone.
Contractor developed Traffic Control Plans Department sets performance requirements and contractors develop detailed plans May be more problematic if multiple construction contracts used, but still possible to develop in framework of an overall traffic management plan.
Pre-set pricing for COs Set a framework for pricing change orders, for extended time. Allows predetermined pricing for change orders, but may result in higher contingency or overhead in general.
Delegation of Authority for Cost to field Speed decision making, keep job moving  
Partnering/escalation agreements   This is standard procedure for TXDOT but the team would like to add and support its use.
Bid escrow Contractor puts all notes and calculations in escrow, in event of later disputes. Allows owner to see thinking at time of bid.  
Cash Curves Use CPM to create cash flow curve; avoids over-extension of budget by tying payments to available revenues Need to ensure that cash payment schedule does not deter rapid completion.
Bonding requirements Consider changing bonding requirements so that more contractors can participate - bonding on high dollar projects can be difficult to get. Consider dynamic allocation of risk: at any one time, less than 100 percent of the project is at risk, so bonding requirement can be less than 100 percent. In CO, bonding requirement was set at 50% for parts of T-Rex Need to balance lowered bonding requirements with protecting DOT against risks of non-completion (retainage or other strategies).
Risk Management/assessment Develop explicit matrix to define risk and who owns in advance, to assign appropriately, and to determine where risk can most advantageously be held.
Change Retainage requirements Lower retainage requirements so that there is not a large amount of cash withheld, so that bids may be lowered appropriately If necessary can increase retainage if problems are anticipated
Set up allowances for contingencies expected in contract Cover unknowns in advance, to limit bid amount Owner, or project manager, owns authority to use contingency
Set up one TXDOT project management team Single team manages project, using perhaps consultant help. Set up dedicated testing facility, if not Design-Build. (Design-Builder would handle if D-B). Team deals with configuration, cost, schedule, CO management, etc. For D-B, team would delegate more responsibility to contractor and deal with higher level mgmt. issues.
Utility Coordination Contract Either in conjunction with design-build contract or separately, hire external utility coordinator to identify, locate, coordinate, and negotiate agreements with all utilities in corridor. Manage information exchange between DOT and/or design/build contractor - so as design evolves, utility relocation is adapted. With utilities, engineer conduit that combines utilities, and lay out construction schedule that goes in logical order. Successfully pioneered in the Texas Central Expressway. Cost of licensed utility inspector can be included as part of contract cost. Utilities in Texas have a statutory right to occupy ROW; process is "first-come, first-serve." Utilities may not be willing to let work be done by contractor, or may insist on use of own contractor.

Optimal solution may be conduit; cost of conduit could be covered by lease payments from utilities, but lease payments could be very difficult to negotiate.
ROW Acquisition Contract Incorporate ROW acquisition into design-build contract; saves time by eliminating levels of decision-making - e.g., administrative settlements can be approved by giving contractor latitude to approve up to certain level; design issues can be resolved and ROW agreements made more quickly; contractor will acquire ROW rapidly due to incentives for timely completion in contract. Works for parcels that can be acquired without legal action; DOT/contractor must allocate risks for parcels that cannot be acquired.

Can TxDOT legally contract out for these services?
Owner Controlled Insurance Program (OCIP) or Partner-Controlled Insurance Program (PCIP) Wrap up insurance, so that DOT obtains overall insurance for project (or shares with Contractor), and bills contractors for premiums, eliminating need for individual contractors to seek (average savings of 2%) Inspector General criticized Central Artery project for maintaining excessive reserve funds for its OCIP

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Roadway/Geometric Design Skill Set


  • Ken Davis, FHWA
  • Rebecca Dugger, City of Dallas
  • Patricia Jackson, TxDOT DES
  • James Janovsky, TxDOT Dallas
  • Rory Meza, TxDOT DES
  • William Prosser, FHWA - HIPA-20
  • Bill Riley, TxDOT Fort Worth
  • Cheng Soong, CH2M Hill
(Short Name)
(Detailed Description)
Implementation Details
(Barriers, Skill Set Coordination, etc.)
Weekend Closure
  • 48 hrs of continuous work, local street system alternatives- only close portions
  • Tearing up city streets, local traffic through lights
  • Special events, State Fair, American Airlines (Traffic Operations)
Existing pavement as a Base
  • Use existing pavement as base, to reduce tearing out
  • Not continuous for the proposed alignment (Roadway and Pavement)
Continuous Frontage Roads
  • frontage roads parallel to traffic to detour
  • for temporary divergence of traffic
  • Lot of temporary roads may be necessary for this
  • Increased cost
    (Traffic, Construction, Design)
Truck traffic
  • Dallas ties, or continuous through
  • Destination of the trucks? Detour only for short term
  • 8 to 13% truck traffic
Doesn't have to be entire project, can be only at points of construction
(Traffic, Pavement, Construction)
  • 16.5 ft is not necessary? Try 14.5 ft, based on special consideration
  • ramp design lower, weaving easier
  • 2% reduction ($14 mill, 2 months cut on time)
  • Drainage ability is increased with pipe slope
  • Military prefer not to change, because machinery size is unknown for future.
  • May need special permission for 14' - 6" vertical clearance, which allows for 2-3" overlays on the roadway beneath the bridge
  • If there is a proper bypass, full clearance is not reqd.
HOV only During Construction
  • 80% traffic maintained
  • Encourage city have public use city streets instead of frontage roads (public relations)
  • Parallel service streets for weekends
  • Less earthwork, lower retaining walls, lower bridges, better profile grade
Using Different design criteria for HOV (Traffic)
Concrete Pavement
  • Design of concrete thickness (HOV) conservative as is
  • May want to make thinner
Reconstruct, wasn't designed to handle traffic of trucks
May be truck problem, but can toll and minimize truck traffic
Thinner pavement fail quicker (Pavement)
Frontage Roads
  • Most continuous is in the Canyon mostly
  • Have along system, under utilized
  • May be able to use as through traffic?
  • Good coordination with city of Dallas
Difficult with so many interchanges
Mostly for access to surrounding properties
Diversion of traffic of wherever possible
Media Relations
  • Public info
  • Start passing word to desensitize public of future
  • Monthly information share with property owners
Media Consultant few months before, sooner done better
(Traffic Operations)
Prioritization Which to construct first
  • Canyon, Mix Master,
  • Outside->In or directional
  • Outside first get more room to work with
  • Building connecter
Running through traffic, where to put columns
Lots of temporary pavement
Detailed sequencing plan to move things around
(Roadway, Construction)
Project Manager Utilities Several contractors, have a general consultant.
Start during PS&E development, get them involved early as a penalty or incentive
Utilities want final plans, instead of preliminary
Hurts their schedule, very critical about timing
Earth work 2 ft becomes 4 ft drop on level of bridge (if three different level)
Ramp profile easier to design
But having the one substandard clearance automatically cause deterrent
Clearance Not every underpass profile has to have 14' clearance.
May only need to do one or two
May eliminate some of design exceptions
But having the one substandard clearance automatically cause deterrent
Pavement Using it to mix with new as base or just overlaying the existing? Canyon lower grade, how far going down and which part?
(10ft) Need 4" cushion if overlaying
Involve Contractor? Nothing but good things involved, maybe get a group, to come up with sequences of materials and pitfalls etc...
Nobody's guaranteed the contract
What can be done to shorten the construction time
Get earlier input design
Public meetings for contractors only
Don't want to be "too public" only top three or four probable contractors.
ITS (Traffic) Design Conduit infrastructure?
Designing a system into it
Mounting cameras
Construction can make set up of it
Implement with signing (dynamic message signs)
ITS usually left out until very end
  • Use design consultant for P.S.&E.
Utility Design
  • Conduit system created by design mesh with drainage
  • One location
  • 6x6 box culvert encasing utilities
  • Drill Shaft locations
Currently have 96" brick sewer culvert for sewage (wondering about design)
Approx 100yrs old
May need to encase not an option, in-situ forming is best
Will it withstand the construction traffic, etc...
Expect $200 million adjustments
ROW/ Env Section 4F, need avoidance and minimization for taking the parkland (0.67 acres) Req. design details be submitted w/ Section 4F document
Traffic (HOV) HOV during construction not feasible realistically Even if 5 to 10% non-participation, purpose is to decrease traffic
Alternate: so many single occupancy vehicles, try implement HOV throughout the project
1. Vertical Clearance In areas of possibility, may be an option
Want someone to investigate
Benefits may eliminate some problems
- Design exceptions to support this
- Wall height reduced and increased bridge height, less earthwork
2. Frontage Roads
  • Continuous frontage Roads early in process
  • For alternate routes of through traffic-If doing frontage roads, best if they are done first
Lots of temporary construction
Difficult with so many interstate changes
Mostly for access to local property
3. Pavement Design
  • Prefabricate the pavement, only problem is aligning the joints
  • May be expensive, but it's quick
  • Need a straight section (limitations on curves)
  • Precast may save time
  • Varying the thickness
  • Use as recycled material, crushed base or over lay, rigid pavement not a major factor
  • Can be part of depth of cover
  • Better if where horizontal location is remaining the same
  • Use only where possible
  • Using different design criteria for HOV
4. Utilities
  • Having to design around non-removable 96" sanitary sewer pipe.
  • Utility constructed conduit considered in design
  • Has major financial implications, if fail major problem with public
  • Maybe recommend coordination on one solution, deal with now or future
  • State memorandum of future complications
  • Mutual acceptable improvement scheme
  • If relocating, how much time added to project construction time
5. HOV and Truck Media
  • Make the suggestion of trucks to take alternate routes
  • Some will avoid big city, others don't mind diverting if told in advance
  • If you're headed for Dallas don't, consider Houston
Create more HOV opportunities
Overnight construction, longer window of Construction opportunity.
Public Relations (survey of HOV users, would use as final design) maybe change driver patterns

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Traffic Engineering/Safety/ITS Skill Set


  • Param Sankar, Cambridge Systematics
  • Robert Bacon, TxDOT-Dallas
  • Michael Chacon, TxDOT - TRF Austin
  • Tim Fetters, Jacobs
  • Joel Fitts, Parsons Transportation
  • Elbert Hunt, Colorado DOT
  • Greg Jones, FHWA - RC
  • Jerry Jones, FHWA - RC
  • Charles Koonce, TxDOT - TRF Austin
  • Mark Middleton, TTI
  • Sharon Morales, VDOT
  • Andy Oberlander, TxDOT-Dallas
  • Christopher Poe, PB Farradyne
  • Don Tolar, LaDOT
(Short Name)
(Detailed Description)
Implementation Details
(Barriers, Skill Set Coordination, etc.)
1. Demand Management Public education of available facilities, etc. Behavior barrier
2. Demand Management Shuttles to provide flexibility in multi-modal use  
3. Demand Management Work with employers to use flexible work week strategies Coordinate with "Pegasus 2" project
4. Demand Management Increase park and ride area  
5. Demand Management Increase bus route to transit for corridors that feed construction corridor  
6. Demand Management Increase express bus service  
7. Demand Management Carpool to shuttle to work Provide incentive to participating employers
8. Demand Management Use lessons learned from special event management (fair, motor speedway, world soccer games, etc.)
9. Demand Management
Investigate use of partial and full HOV facility
10. Demand Management Extended temporary night time and weekend lane closures
11. Demand Management Build frontage roads first
12. Incident Management Include locals emergency responders in TCP development and const. stage change  
13. Incident Management Define who will respond to the various incidents in the corridor and include them in the planning  
14. Incident Management Improve incident response time Contractor responsible for clearing incidents. Clearly define contractor's role in incident management.
Use towing specification - comply with Dallas towing truck rotation
15. Incident Management Promote the Regional IM training  
16. Incident Management Dedicated incident management coordinator  
17. Incident Management Use state fair, apparel market, etc., for training  
18. Incident Management "One call" response for industrial and traffic accidents investigation.  
19. Incident Management Provide for stakeholder input  
20. Incident Management Way finder, reference markers, signing, etc.  
21. Maintain ITS Coordinate funding with NTCOG to maintain existing or provide for rerouting  
22. Maintain ITS Maintain ITS thru const. Install Portable ITS system, hi mast CCTV, Statewide center two center ITS Control, deploy ITS in key corridors
23. Maintain ITS Early coordination of utilities/fiber R/W Utilities, SS
24. Traffic Control Reroute traffic from construction corridor. Coordinate with Waco and Ft. Worth District, MAPSCO, MAPQUEST, and other traffic routing services to route around the corridor during const.
25. Traffic Control Coordinate Work Zone and project development early  
26. Traffic Control Investigate alternate routes for I-30 closures  
27. Traffic Control Fast track Trinity and Woodall Rogers extension projects  
28. Traffic Control Increased signing for internal traffic control  
29. Traffic Control Lane rental Innovative SS
30. Traffic Control Traffic analysis for innovative strategies and scheduling; advance planning/design for route to handle diversion Innovative SS
31. Traffic Control Eliminate truck traffic unless deliveries in area  
32. Traffic Control Maintain access to medical facilities  
33. Traffic Control Maintain minimum I30 and I35E lanes thru corridor  
34. Traffic Safety Use gawk screen  
35. Traveler Information Provide time information to travelers 5-1-1 integrated or separated hotline
36. Traveler Information Keep traveling public informed of construction schedule and work zones Hire a Public Info person to coordinate public information campaign with media
37. Traveler Information Develop local HAR radio system Provide automatic override of local radio stations in WZ to give project information
38. Traveler Information Provide corridor activities to advise travelers of alternate routes  
39. Traveler Install additional DMS  
40.Traveler Information Provide truck traffic info  
41. Information Electronic real-time update  
42. Traveler Information Develop Web site with real time information  
43. Worker Safety Train workers to understand accelerated technology to protect them - more equipment will be used than normal. 24 hr work schedule Drug testing, physical testing, OSHA, weather, language, etc.
44. Worker Safety Comprehensive Safety/Health program  
45. Worker Safety Incorporate worker safety requirements in Project Documents Incentive for safety performance
46. Worker Safety Wrap up insurance Contracting SS
47. Worker Safety/Work Zone Develop information videos to show how to drive thru WZ for distribution to schools, churches, etc. to assist motorists.  
48. Worker Safety/Work Zone Use checklist to check if safety features in place daily  
49. Worker Safety/Work Zone Train trucker drivers, to improve internal work zone safety. Coordinate WZ staging with suppliers Pre-qualify drivers
50. Worker Safety/Work Zone Keep outside trucker informed of staging to improve internal traffic control  
51. Worker Safety/Work Zone Speed Enforcement  

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Construction Skill Set


  • Mufid Abdulqader, City of Dallas
  • Charles Brauer, TxDOT Construction Division
  • Steve Dewitt, NCDOT
  • Enrique Guillen, TxDOT Dallas District
  • Gene Hoelker, FHWA NRC
  • Joe Huerta, FHWA, NRC
  • E.T. McArthur, Montana DOT
  • Mike Lehmann, TxDOT San Antonio
  • Tony Payberah, TxDOT Dallas
(Short Name)
(Detailed Description)
Implementation Details
(Barriers, Skill Set Coordination, etc.)
Construction Staging
(Sequencing Plans)
Room to Work
Traffic Control Plans by Contractor
Construction Staging Areas
Maximize "out of traffic" improvements prior to impacting project-related traffic
Use existing public facilities as staging area in return for improvements (Park)
Coordinate with IC, Traffic, Structure Skill Sets
Project Management Team Project Manager
Sense of Urgency
Review/Approval Authority
10 day turn-around time
Dispute Resolution Process
Central Project Location (TXDOT & Contractor)
Will require high level wide ranging support to ensure issues are resolved!
Coordinate with innovative contracting, design skill sets
Automation CMP Scheduling
Electronic Document Control
Coordinate with ?
Material Delivery Pre-Order Materials
Pre-Cast Materials
Material Delivery Issues
Consider High Performance Materials
Coordinate with materials, structure skill sets
Availability of Materials Aggregate Sources
Coordinate with materials, geotech skill sets
Sequence Smaller Projects of the overall project Railroad Bridges
Critical Ramps/Interchanges (Bridges)
Frontage Roads
Alternate Routes
Coordinate with Design, TE & safety, R/W/utility/RR, skill sets
Dealing with 3rd Party Problems Up Front Utilities
Hazardous Materials
Coordinate with utilities, design (see previous item)
Quality Control Contractor Provided QC
Inspection by Contractor
Independent QA
TXDOT QA Monitoring
Inspection by Contractor - Culture shift - "fox guarding hen house"
Coordinate with materials
Relocate Utilities by Contractor Contract to include movement of utilities by the contractor (water, sewer, power, cable, etc.) Barriers - Industry Acceptance
Coordinate with utility, design skill sets
Advance Utility Relocations See #7 See previous item
Industry Involvement in Constructability Reviews Hire Outside Expertise for Reviews
Contractor Constructability Reviews
Hire PEF or Contractor to do reviews
Barriers - Industry Acceptance
Coordinate with innovative contracting
Design Solutions by Contractor Bid item - puts responsibility for plan error resolution on contractor and hired design PEF Barriers - Industry Acceptance
Coordinate with design, innovative contracting
Specifications End Result - Means & Methods "loosen up"
Opportunity to Innovate - review specs to allow maximum innovation
Cultural Barriers
Coordinate with materials, innovative contracting
Design-Build Include utility movement, R/W procurement, Etc. Cultural Barriers - it is never too late to go to DB!!!
Coordinate with all groups!
Kentucky Pre-Qualification Process Contractors involved in constructability very early in the design process - Special prequalification process Limits Bidders - some may fall out by the time the project is actually bid - others cannot be added
Coordinate with innovative contracting, design
Best Value Contracting Selection process very much like Design-Build but for Design-Bid-Build Barriers - legal issues
Coordinate with innovative contracting
Special Project Issues Mill Creek Under Roadway
Historic Bridge
Covering Part of Roadway in Canyon Area
Need to be investigated much more in depth
Coordinate with all groups!
Close short sections at a time? Remove traffic in whole or in parts Public Acceptance!!!
Coordinate with innovative contracting, design, traffic & safety
Trinity Parkway Reliever Route
Constructed Prior to Pegasus
NEPA, Funding, Coordination Barriers
Work Force Availability Inspection Forces
Construction Workers

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Pavement/Maintenance Skill Set


  • John D'Angelo, FHWA - HIPT
  • Gary Graham, TxDOT Construction Division
  • Gerry Huber, Heritage Group
  • Mark McDaniel, TxDOT Construction Division
  • Abbas Mehdibeigi, TxDOT Dallas
  • Suneel Vanikar, FHWA - HIPT
(Short Name)
(Detailed Description)
Implementation Details
(Barriers, Skill Set Coordination, etc.)
20 Years little to no maintenance. Expected pavement life more than 50 years. This should be a low maintenance roadway with no base failures expected and surface failures experienced very infrequently. Should be coordinated with materials, and construction technical experts
Composite pavements should be considered. Various scenarios should be considered such as asphalt base\with CRCP on top (normal practice), CRCP on bottom with asphalt on top, precast/prestressed slabs with asphalt on top (at intersections and frontage roads, etc.). It is also possible to diamond grind slabs and not top with asphalt. If grades can be adjusted we can leave the existing pavement in place and bury it. Composites get the benefits of the structural capacity of the concrete and the noise and ride of the asphalt. The asphalt insulates the concrete from temperature and moisture fluctuations. SMA with modified asphalt and open-graded friction courses should be considered as surface courses. Construction and materials experts should be consulted.
Materials selected to provide for quality product. Recycling of old concrete pavement should be maximized. Do not use siliceous aggregates. Fast track material testing techniques should be used. Set up a separate pay item for curing to get a better quality product. Subsurface investigations must be done. Consider more restrictive specifications to get higher quality materials. Coordinate with geotechnical and material testing groups. Possible uses of recycled pavement could be behind retaining walls, asphalt base courses, crushed aggregate bases, etc.
Staging areas (crushing operations, concrete plant, etc.) should be on project site if at all possible. Permits obtained before letting. On-site plant operations significantly reduce construction costs by eliminating haul distance and significantly reduces construction related traffic from surrounding roadway network. If the floodplain is considered for plant operations, coordination with FEMA and COE will be required. Plant permits may be obtained by TXDOT in advance if the plant sites are designated on the plans. Protection of plant equipment and maintaining flow capacity through the floodplain are considerations. Right-of-way and environmental section should be consulted.
Restrict traffic through canyon section. Consider such techniques as restricting all lanes to HOV traffic (reduction of lanes), weekend closures, complete shutdown. TEXDOT traffic engineer should be consulted as well as environmental section. Could be publicly controversial and formal notification procedures would have to be carried out. This would affect environmental clearance. This could significantly expedite construction. HOV traffic can remain on a limited number of lanes while the others can be reconstructed.
Performance characteristics should be specified, regarding smoothness, friction, distress, noise, etc. Performance warranties require detailed stress identification with monitoring cycles and techniques. Distress has to be tied to existing pavement characteristics in a State or location. Also tied to typical deterioration curves and be truly measurable characteristics.
Long term warranties with contractor responsible for maintenance. Long term performance warranties requiring contractor maintenance for approximately 10 years This would require design build and tied with innovative contracting practices. Likely to result in innovative design and construction practices. Coordinate with contract administration specialists.

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Updated: 06/27/2017
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