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Project Information
Construction schedule:
Project Milestone Dates
Milestone Event
Project Award - October 18, 2007
Construction Start Date - Dec. 12, 2007
Shift Traffic to New Structure (closing pedestrian access) - March/April , 2010
Complete Structure and Final Traffic Configuration (open to pedestrian traffic) April, 2011
Project Complete June 2011
Project Description
Fourth Street is a major east west route through Pueblo connecting I-25, downtown, and western residential neighborhoods. The 4th St. Bridge carries State Highway 96A (SH 96A) across a small city street, the Union Pacific (UPRR) and Burlington Northern Santa Fe (BSNF) railroad yards (Pueblo Yard), a floodwall, and the Arkansas River. The Pueblo Yard is a major railroad system component with approximately 30 tracks at the bridge location, including one BSNF and two UPRR mainlines.
The existing 4th St. Bridge, structure number K-18-Z, has a Sufficiency Rating of 24 out of 100 and has become structurally deficient and functionally obsolete. Improvements will be made to enhance safety for motorists and pedestrians through new bridge construction and approach roadway modifications. Roadway alignment and profile improvements, structure replacement, drainage design, lighting, and urban design are part of the final overall strategy.
The bridge and roadway cross-section will be improved to accommodate current and future traffic demands on the 4th St. Corridor. The new cross-section includes two 12-foot travel lanes, a 6-foot inside shoulder, a 10-foot outside shoulder, and a 10-foot wide multi-use sidewalk in each direction.
(click on image to enlarge)
PowerPoint Presentation - Some Project History & Details
(click on image to enlarge)
Project Team
• Colorado Department of Transportation
• FHWA
• Design Consultants
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| FIGG | Project Management & Bridge Engineering |
| PBS&J | Civil, Roadway, Traffic, Utilities, Environmental |
| Ayres Associates | Hydraulics & Drainage |
| Goodson/MWWA | Geotechnical, Geology |
| The Szynskie Group | Lighting & Electrical Design |
| EDAW | Urban Design & Landscape Architecture |
| Abel Engineering | Survey & ROW Support |
• Stakeholders
– City of Pueblo
– Railroads (UPRR, BNSF)
– Utility Companies
– Business & Community Groups
Project Timeline
| 90% Plans | October 18, 2006 |
| PS&E | February, 2007 |
| Advertisement | Spring/Summer 2007 |
Project Considerations
• Railroad Coordination
• City Coordination
• Utilities
• Phasing / Maintenance of Traffic
• Arkansas River & Recreation Area
• Access to Midtown Mall
• Construction Access and Staging Areas
• Environmental Compliance
• Alternate Bridge Design (tentative)
Project Goals
• Improve Safety for Motorists, Pedestrians, and Bicyclists
• Improve Alignment and Profile
• Increase Future Traffic Capacity
• Provide Higher Functioning Level of Service
• Provide RR Safety Clearances
• Increase Load Carrying Capacity
• Improve Drainage
• Include Aesthetics and Urban Design
• Community Involvement
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