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This project involves the replacement of the existing 4th Street Bridge in Pueblo, Colorado. The current bridge is structurally deficient and functionally obsolete. The new bridge will have a 4-lane build with a future capacity for 6 lanes. The project team consists of the Colorado Department of Transportation, FHWA, and various design consultants. The project timeline spans from 2006 to 2011.
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4TH STREET BRIDGEPueblo, Colorado December 2006 Project Overview
Project Team • Colorado Department of Transportation • FHWA • Design Consultants • 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
Project History • Replacement of existing bridge K-18-Z • Structurally Deficient, Functionally Obsolete • Statewide Transportation Plan – 1996 • Consultant Services - 2000 • Conceptual Design – 2001/2002 • Preliminary Design 2003 • Environmental Clearance – 2003 thru 2005 • Final Design – 2006
Project Timeline • 90% Plans October 18, 2006 • PS&E December 18, 2006 • Advertisement March 2007 • Contract Award May- June 2007 • Construction (3-4 years) 2007-2011
Project Aerial Map Mall To I-25 Loop Ramp Rd River RR Yard Bluff Floodwall Bluff
Project Description • Study Corridor • Elizabeth St. to Abriendo Ave. • Construction Limits • Midtown Circle to Corona Ave.
Site Description – West End Bluff Arkansas River Trail Fishing Pier Kayak Course
Site Description – East End Railroad Facilities Midtown Mall Commercial Downtown Pueblo
Existing Bridge Conditions • Undesirable Roadway Geometry • Insufficient Safety Clearances • Substandard Load Carrying Capacity • Structurally Deficient • Functionally Obsolete • Insufficient Pedestrian/Bicycle Facilities
Existing Bridge Conditions Narrow Lanes, Shoulders, Sidewalks
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
Proposed Roadway Section 4-Lane Build / 6-Lane Future Capacity
Proposed Alignment North Alignment - Aerial
Proposed Structure Information • Twin Structures 6-ft Separation • Average Length: 1,137 feet • 5 Spans (151’, 235’, 378’, 228’, 145’) • Clear Spans: • Arkansas River & Levee • River Trail • UPRR & BNSF Yards (w/ pier between) • Loop Ramp Road