Institute of Transporation Engineers (ITE) May 10, 2013

Transcription

1 Institute of Transporation Engineers (ITE) May 10, 2013

2 The RTD FasTracks Plan 122 miles of new light rail and commuter rail 18 miles of Bus Rapid Transit (BRT) service 31 new park-n-rides; more than 21,000 new spaces Enhanced Bus Network & Transit Hubs (FastConnects) Redevelopment of Denver Union Station

3 FasTracks Update 81 miles of new rail and bus rapid transit currently open, in or under contract West Rail Line Complete and opened on April 26 Denver Union Station 81% complete U.S. 36 BRT construction of express lanes extension underway (Federal Blvd. to 88 th St.) East Rail Line/Gold Line/NW Rail 40% complete I-225 Rail Line construction underway North Metro Line RFP in July

4 FasTracks Update Economic driver for the region West Rail alone added more than $356 M FasTracks has already injected $2.7 billion into the region since Economists estimate that every $1 invested in transit infrastructure translates into $4 injected in the local economy over 20 years.

5 FasTracks Project Delivery Methods Design-build (DB) Design-bid-build (DBB) Design-build-operate-maintain (DBOM) Design-build-finance-operate-maintain (DBFOM) Construction Manager/General Contractor (CMGC)

6 Denver Union Station $480 million project Multimodal hub integrating light rail, commuter rail, Amtrak, buses, taxis, shuttles, bikes and pedestrians Denver Union Station Project Authority oversees development Partners include RTD, Colorado Dept. of Transportation, City and County of Denver, Denver Regional Council of Governments, Master Developer Union Station Alliance is developing historic building into boutique hotel, restaurants and retail stores Transit hub opens in 2014

7 Downtown Denver Circulator Additional transit capacity between Denver Union Station and Civic Center area Service will complement Mall Shuttle Stops are 2-3 blocks apart for faster travel than Mall Shuttle Opening will coincide with opening of Denver Union Station in 2014

8 Eagle P3Project East Line Gold Line Northwest Rail (to south Westminster) Commuter Rail Maintenance Facility Opening in 2016

9 Eagle P3Project RTD pursued concept of P3 in 2007 The Perfect Storm Costs skyrocketed Revenues plummeted First transit P3 of this magnitude in the U.S. RTD retains ownership of assets 34-year contract 6 years design/build 28 years operate/maintain More public entities are turning to P3s to build out their projects

10 I-225 Rail Line 10.5-mile light rail extension Starts at existing Nine Mile Station 8 stations Serving: Aurora City Center Anschutz / Fitzsimons Campus New VA Hospital, which will serve 60,000 military veterans and their families Provides connectivity to East Rail Line at the Peoria Station Opening in 2016

11 US 36 Bus Rapid Transit 18 miles of Bus Rapid Transit (BRT) between downtown Denver and Boulder RTD s BRT Vision o Frequent and reliable service, same or better than light rail or commuter rail o Specialized branded buses o Managed lanes o Permanent BRT stations o Off-vehicle fare collection o Real Time Transit Information o Coordinated effort with stakeholders to establish BRT service standards

12 Northwest Area Mobility Study Develop consensus among RTD, CDOT and corridor stakeholders on cost-effective mobility improvements to serve the Northwest area Analyze Northwest Rail, extending North Metro to Longmont and BRT HNTB will lead study Goal is a list of priorities for improvements and third-party funding options Memorandums of Understanding (MOU) have been signed by all parties agreeing to the process Study begins in May and will be completed in early 2014

13 West Rail Line

14 West Rail Line 12.1 miles of light rail 12 Stations 5,605 parking spaces $707M capital cost Ridership 19, , Opened April 26, 2013

15 Selection Process: CM/GC approach March 2004 West Rail Line RFP released May 23, 2006 RTD s selection committee selected Denver Transit Construction Group (DTCG) June 2006 NTP for Pre-construction Services contract July 2007 Change order for track removal March 2008 Early work and material procurement under LONP June 2008 Guaranteed Maximum Price submitted June 2009 NTP for Construction

16 Procurement Process: Two-Phased Approach (CM/GC) PHASE ONE: Contractor provided professional services like scheduling, planning, and cost estimating in preparation for entering into construction, but not performing construction, although the contract was amended in 2008 to allow for some early construction work. PHASE TWO: Precedent to phase two, DTCG had the first opportunity to negotiate the construction contract. If parties were unable to reach an agreement on guaranteed maximum price, RTD reserved the right to award the contact to another contractor. Construction began. As General Contractor, DTCG manages their work, including their sub-contractors. RTD s role is to provide project management and construction oversight.

17 West Rail Line Schedule 2005 Final Design Begins June 2009 Jan-Feb 2013 March April April 26, 2013 Construction Begins Integrated testing RTD Operations Testing West Rail Line Open to Public

18 Project Elements Rail 12.1 miles 9 double track, 3.1 single track Bridges 10 Light Rail Bridges 3 Street/Highway Bridges 3 pedestrian bridges Bike paths 4.26 miles Walls Retaining Ballast Mechanically Stabilized Earth Soil Nail Crossings 20 at-grade crossings 14 grade separations 10 road closures Tunnels I-70 and Union Boulevard Stations 12 Stations 6 kiss-n-ride 6 with parking 11 new 1 relocated

19 Stations

20 Auraria West and Decatur Federal Stations

21 Knox and Perry Stations

22 Sheridan and Lamar Stations

23 Lakewood Wadsworth and Garrison Stations

24 Oak and Federal Center Stations

25 Red Rocks College and Jeffco Golden Stations

26 Challenges: Stations

27 Station Construction General Aspects: Subsurface conditions in some locations, such as Auraria and Jeffco were not conducive to building structures Coordination between station foundation and utilities Relocations along 13 th Avenue RTD performed potholing and survey of existing utilities Was challenging to service locations along the rail line Construction on streets to locate electrical feeds added cost Double tap fees ROW and Easements

28 Station Construction Lessons Learned What went well: Contractor worked well overcoming various issues Ability to collaborate between Owner and Contractor Lessons Learned What could have been better: City betterments were challenging City provided funding City had their own designer Many existing facilities are substandard Contracts that are split out can cause challenges Coordination and communication (among contractor and subs) Sequencing of work

29 Challenges: Utilities

30 Utilities General Aspects: To determine which utilities were in conflict with the proposed RTD construction, the proposed construction design drawings were reviewed at 30 percent design 60 percent design project started to relocate facilities 90 percent design During design Subsurface Utility Engineering was performed to minimize the impact of utility reconstruction Worked with DEA and utility owners to: Provide a location to relocate facilities Develop a cost estimate for each relocation Determine who was financially responsible for the design and construction costs to relocate utility facilities

31 Utilities RTD Relocates and added utilities: Issues relocating all overhead and underground utilities located in the same alignment as the proposed LRT guideway Project located in older section of Lakewood and Denver Building foundations in conflict Utility conduits containing asbestos DTCG was responsible for wet utility relocates with the exception of CMWC water facilities RTD utility team was responsible for the design and construction of existing dry utilities that were in conflict with the proposed LRT construction. All dry utilities were completed by the utility owners: Xcel-Gas Operations, Electric Distribution, Transmission; CenturyLink; Comcast; Level 3; and Zayo

32 Utilities Relocates by utility owners: CenturyLink Had underground ductbank located on 13 th Avenue that consisted of over 30, 2-inch conduits from Quail to Wadsworth and contained asbestos Relocated their facilities out of 13 th Avenue from Independence to Wadsworth into 14 th Avenue Project was able to save CenturyLink facilities from Quail to Independence which saved CenturyLink money and construction time Xcel Energy and Comcast Had an overhead electric facility that ran in the middle of 13 th Avenue from Quail to Harlan with Comcast attached to their power poles Overhead facilities relocates into 10 th and 14 th Avenue

33 Utilities Work Orders by RTD: Included: Relocation of water lines owned by CMWC along 13 th Avenue New fire hydrants in COL, constructed by CMWC Underground communication facilities Overhead electric facilities located in easements Electric transmission towers 348 work orders 295 Dry Utilities

34 Utilities Lessons Learned What went well: Coordination among stakeholders Coordination between DTCG and RTD Communication between parties if there was an issue DTCG would address RTD and vice versa Good production Lessons Learned What could have been better: Relocating utilities began too soon Value engineering drawing integration good in some aspects, but there were aspects that were not taken into account Knowing municipality and the standards ahead of time Need to know municipality s design criteria and what the requirements are for utilities

35 Challenges: Tunnels

36 I-70 and Union Tunnels Excavation Both tunnels were constructed in phases to minimize construction impacts to the public: I-70: Two phases Union: Three phases Importance of stockpile location: Allowed for better onsite coordination Crews were focused on the excavation, not dirt removal Change orders Unforeseen design issues at I-70 Tunnel

37 I-70 and Union Tunnels Conflicts and Resolutions Design: I-70 incorporated precast planks whereas Union Tunnel was a slab-on-grade Union Tunnel design caused another step in the process Rebar cages at Union Tunnel were sinking into subgrade which required DTCG to spend additional time compacting subgrade Coordination included: I-70: Federal Highway Administration (FHWA) and CDOT Union: City of Lakewood and CDOT Coordination involved: Permits and traffic control scheduling around peak traffic times Incident management plan Construction of I-70 Tunnel required the closure of the interstate Union Tunnel utilized lane closures to allow the flow of traffic

38 I-70 and Union Tunnels Lessons Learned What went well: The coordination among parties, prior to construction: Began four to six months in advance Allowed stakeholders to have a positive comfort level Created a partnership Without coordination neither tunnel would have progressed quickly or successfully. The phasing, routing, and shutdown needed full partnership Accelerated bridge construction allows for tunnels and bridges to be constructed in a quick fashion with minimal disruption to the traveling public

39 I-70 and Union Tunnels: Lessons Learned What could ve been better: Contractor should be heavily involved with the physical design of the project, when applicable Design doesn t necessarily take into account the phasing required to build structures Allowing the contractor to assist in the design process, helps to mitigate unforeseen issues during construction Examples: I-70: DTCG was involved and had the ability to offer input since the inception of the tunnel design, phasing, procurement, to actual construction Union: DTCG had no input on tunnel design. To stay on schedule DTCG had to make the design plans fit field conditions

40 Challenges: Track and Subgrade

41 Track Subgrade Construction General aspects: RTD considers track subgrade to be as important to track performance as the rail and ballast Subgrade and maintenance costs are reduced by using an effective exploration and testing program during the design process to include collection and analysis of detailed information Subsoil or foundation for the track subgrade is required to satisfy same basic requirements of a continuous spread foundation Foundation soil should have the strength to support the constructed subgrade Subsurface and surface drainage conditions must be addressed to avoid conditions such as sink holes and springs under the fill

42 Track Subgrade Construction General aspects: Fills, embankments, or select granular fill materials (supplied by off-site commercial sources) Used to raise existing ground surface when required to achieve desired level for track subgrade May serve to elevate the grade above existing or predicted water levels or snow depths, eliminate undesirable topographic variations, and achieve design grades RTD track subgrade 11 feet to both sides of the track centerline Compacted to a minimum density of 95% of the maximum ± 2% of the optimum moisture content Compacted subgrade is sloped at 40:1 toward a track underdrain system

43 Track Subgrade Construction Lessons Learned What went well: Expansive subsoils: Westernmost portion of rail line overlies a bedrock zone consisting of nearly vertically inclined layers of differentially and potentially highly expansive claystone To minimize risk, RTD elected to overexcavate and replace potentially expansive soils with controlled compacted select granular fill materials Artificial fills: Includes soils (clay, silt, sand, gravel) and debris including extensive deposits of trash or landfill type RTD elected to remove and replace artificial fills in whole with an engineered fill

44 Track Subgrade Construction Lessons Learned What could have been better: Minimization of the costs associated with the above unforeseen conditions can be achieved through a comprehensive exploration and testing program during the design process. Prior to project, RTD lowered and redesigned major gas and fiber optic lines, however, smaller feeds weren t necessarily taken into account

45 Challenges: Walls

46 Walls and Embankments Underground/Earth Work: Crews discovered areas with unsuitable material Required geotech analysis provided guidance to ensure wall embankments would not swell or settle Coordination with various stakeholders to ensure phasing plans and haul routes Change Orders/ Value Engineering Wall caissons Geotech allowance Foundation and wall construction

47 Walls and Embankments Lessons Learned What went well: DTCG/RTD performed value engineering (VE) for many walls in an effort to change wall types Approximately 25 walls were VE resulting in change orders (MSE, Cast-in-Place, etc.) VE efforts provided substantial savings to owner and contractor When accessible contractor would slip-form ballast walls rather than form and pour Lessons Learned What could have been better: All utilities need to be relocated or installed before constructing With MSE walls, take into account the utility duct bank, OCS foundations and the MSE straps

48 Challenges: Bridges

49 Bridge Construction Underground/Earth Work: Wet and dry utilities needed to be out of the footprint of bridges Utilities relocations sewer, water, fiber optic lines, etc. Bridges were built, or reconstructed over waterways, creeks, roadways, guideway and channels Special attention to environmental impacts such as waterways and wetlands Proper phasing was required to facilitate construction Material Changes Various bridges were assessed to be changed from steel to concrete

50 Bridge Construction Lessons Learned What went well: Because the construction and reconstruction of bridges were completed in phases there were minimal impacts to the traveling public Allowed various stakeholders to have input on final design elements for betterments to their community Created a sense of community, partnership, and ownership Lessons Learned What could have been better: Some bridge designs didn t fully account for the utility duct banks that were to be constructed on the bridge expansion vaults, conduits, etc.

51 Operations

52 Call-n-Rides Three new Call-n-Rides Belmar Golden Green Mountain Personalized bus service that travels within select RTD service areas. Flex routes during high-traffic hours, as a service to commuters, scheduled stops in designated areas.

53 Operational Info Trains Frequency Every 7.5 minutes in peak Fed Center to Downtown Every 15 minutes Federal Center to Downtown off peak Jeffco to downtown all day First Train at 3:30 4:00 a.m. Last Train at 2:30 a.m. Fares: Zone A Union Station to Sheridan Zone B Lamar to Garrison Zone C Oak to Jeffco Travel in one or two zones = local fare currently $2.25 Travel in three zones = express fare currently $4.00 Travel in four zones = regional fare currently $5.00

54 Fare Info

55 Grand Opening April 26, 2013 On April 26, RTD kicked off a weekend of West Rail Line celebrations with the Grand Opening Ceremony at the Jefferson County Government Center/Golden Station and free West Rail Line rides for the remainder of the day.

56 Grand Opening April 26, 2013

57 QUESTIONS