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Centennial Boulevard Reconstruction

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Summary

In 2017, the City of Colorado Springs, Kiewit Infrastructure Co. and Wilson & Company completed the $11.8 million Centennial Boulevard Reconstruction Project. Seven lane-miles between Garden of the Gods Road and Fillmore Street were fully reconstructed to correct road grades, improve drainage and provide a suitable base for future maintenance of this vital north-south corridor on the city’s west side. Four lane-miles north of Fillmore Street that did not require full reconstruction were milled and received an asphalt overlay. The project connected sidewalk gaps and added three miles to the city's buffered bike lane network. Centennial Boulevard is the first of three major reconstruction projects made possible by current PPRTA funding.

By the numbers:

  • Seven lane-miles of Centennial Boulevard were fully reconstructed down to the subgrade.
  • Four lane-miles were milled and received an asphalt overlay.
  • 18,500 tons of road base and 54,000 square yards of geogrid fabric were placed to stabilize the roadway.
  • Half-mile of 66-inch storm drain pipe was lined with a cured-in-place pipe prior to roadway reconstruction.
  • 79 curb ramps were removed and replaced to ensure ADA-compliance.
  • 1,300 feet of new sidewalk was added to close gaps on the west side of Centennial Boulevard.
  • New access ramp was constructed on the west side of Centennial Boulevard to connect to Sinton Trail.
  • 13,100 feet of curb and gutter were replaced.
  • New concrete cross pans were placed at all driveways and side-streets.
  • An underdrain system and 18 drainage inlets were installed to address historic ponding and saturated soil conditions that led to deterioration of the roadway.
  • Three miles of buffered bike lanes were added to the city’s network.
  • New landscaped medians with 750 plants and 38 trees were installed to enhance the corridor.
  • Construction Dates: August 26, 2016 – October 27, 2017 (59 days ahead of schedule)
  • Funding: Pikes Peak Rural Transportation Authority
  • Total Project Cost: $11.8 million

Before and After Photos

Before:

Old version of roadOld version of roadOld version of road

 

 

 

 

 

 

After:

photo of completed road

photo of completed roadphoto of completed road

 

 

 

 

 

 

Project Details

Budget & Funding

The Centennial Blvd Reconstruction is a Pikes Peak Rural Transportation Authority (PPRTA) project. It was listed as a Priority A project on the November 2012 ballot. The initial funding for this project was authorized by the PPRTA Board in January 2015.

Project Budget = $12M

  • $1.5M Professional Services - Design and Construction Management
  • $1.5M Stormwater Drain Pipe CIPP Lining (Complete July 2016)
  • $9.0M Reconstruction of Centennial Boulevard Roadway

Project Manager

City of Colorado Springs Project Manager

Ryan Phipps

(719) 385-5069

rphipps@springsgov.com

Design 

Project Background

Centennial Boulevard is an important north-south connection on the west side of the City. The last major work on the corridor occurred more than 25 years ago. Making vital infrastructure improvements now benefits current users and is consistent with the city’s long-range transportation vision. Plans are underway to extend Centennial Boulevard south of Fillmore Street to the I-25 & Fontanero Street interchange.

In 2015, the City hired Wilson & Company to analyze existing roadway conditions, recommend repairs and prepare construction plans to improve travel and public safety. Two public meetings were held in 2016 to provide citizens and business owners an opportunity to review and comment on the improvement concepts. The final design incorporates input received during the design phase. The project is funded by the Pikes Peak Rural Transportation Authority.

Design Consultant

The City of Colorado Springs advertised for the professional services necessary to complete this project in January 2015. Proposals for the project were due Feb 2015. Wilson & Co was selected as most qualified from a qualifications based selection process. The city project manager and Wilson & Co negotiated a scope and fee for project services. The City of Colorado Springs recommended that the PPRTA Board approve the proposed contract at the May 2015 meetings. Ultimately the contract was executed in June of 2015, as which time Wilson & Co began working on the design of the project.

Open House 1 - January 2016

Open House 2 - June 2016

Final Design Renderings

As a result of two open houses and feedback from the community a final design was developed. The documents below illustrate the final design.

Construction

Project Description

Motorists can experience a smoother ride on Centennial Boulevard thanks to reconstruction of the roadway to correct road grades and modify drainage facilities. The new design raises the center of the road to establish a proper slope, which direct storm water to new curb, gutter and drainage features. New medians were placed north of Chesham Circle and near Windmill Avenue creating a gateway feature approaching the residential portion of the corridor. The new design provides residents between Chesham Circle and Windmill Avenue with direct access to side streets, eliminates unnecessary U-turns and provides vehicles with an area to wait to enter or exit traffic.

Pedestrians and cyclists also benefit from improved conditions. Curb ramps and damaged sidewalks were upgraded throughout the corridor. Missing sidewalk segments were constructed with the project. Centennial Boulevard now provides a continuous sidewalk on both sides of the street between Garden of the Gods Road and Fillmore Street. Buffered bike lanes, which add separation between adjacent vehicle traffic, are also part of the project.

Contractor

The City of Colorado Springs advertised for the construction services necessary to complete the reconstruction in May 2016. Bids for the project were due June 2016. Kiewit Infrastructure's bid was most advantageous to the City of Colorado Springs. The City of Colorado Springs recommended that the PPRTA Board approve the proposed contract with Kiewit at the July 2016 meeting. The PPRTA approved and executed the contract in July 2016. Kiewit was give the notice to proceed with the contract work in August 2016.

Construction Phasing Plans

The reconstruction of Centennial Boulevard has been phased into 5 separate phases to reduce impact to traffic and to efficiently complete the project. The phases of the project are illustrated below.

Construction Updates & Information

Photos

Completed project photos

photo of completed road

photo of completed road

October 2017

Below: Milling Phase 5, October 2017

Below: Final Paving Operation, October 2017

Below: Landscaping 1, October 2017

Below: Landscaping 2, October 2017

September 2017

Below: Phase 3 Base Prep Before Paving, September 2017

Below: Phase 3 Paving and Sidewalk Prep, September 2017

Below: Phase 3 Pavement 1, September 2017

Below: Phase 3 Pavement 2, September 2017

August 2017

Below: Phase 3 Base, August 2017

Below: Phase 5 Median Removal, August 2017

July 2017

Below: Phase 2 Pavement and Bus Pad, July 2017

Below: Phase 2 Pavement, July 2017

Below: Phase 4 Pavement, July 2017

June 2017

Below: Curb Ramp Construction, June 2017

Below: Guardrail Installation, June 2017

Below: Phase 2 Base Before Paving, June 2017

Below: Phase 2 Paving, June 2017

May 2017

Below: Phase 2 Curb and Gutter at High Tech Way, May 2017

Below: Phase 2 Curb and Gutter, May 2017

Below: Phase 4 Roadway Excavation, May 2017

Below: Railing Over Sinton Trail, May 2017

April 2017

Below: Milling Asphalt at Garden of the Gods Road, Apr 2017

Below: Milling Asphalt Phase 2, Apr 2017

Below: Locating Utilities Phase 2, Apr 2017

Below: Milling Asphalt Phase 4, Apr 2017

Below: Installing Geogrid at Garden of the Gods Road, Apr 2017

Below: Placing Aggregate Base Course Installed Phase 2, Apr 2017

Below: Phase 2 Traffic Configuration, Apr 2017

February 2017

Below: Near Chesham Looking North, Feb 2017

Below: Near High Tech - New Sidewalk Connection, Feb 2017

Below: New Sinton Trail Connection 1, Feb 2017

Below: New Sinton Trail Connection 2, Feb 2017

November 2016

Below: Before Asphalt, Nov 2016

Below: Final Base Preparation, Nov 2016

Below: Phase 1 Paving Looking North, Nov 2016

Below: Phase 1 Paving Looking South, Nov 2016

October 2016

Below: Fine Grading Subgrade, Oct 2016

Below: Forming Curb & Gutter, Oct 2016

Below: Curb & Gutter Work, Oct 2016

Below: Driveway Improvements, Oct 2016

Below: Surveying Utilities, Oct 2016

September 2016

Below: Asphalt Milling, Sept. 2016

Asphalt Milling, September 2016

 

Below: Concrete Removal, Sept. 2016

Concrete Removal, September 2016

Below: High Tech Way intersection pavement removal, Sept. 2016

Pavement removal at intersection with High Tech Way, September 2016

Below: Inlet construction, September 2016

Inlet construction, September 2016

Below: Sinton Trail Access (before), Sept. 2016

Sinton Trail Access (before), September 2016

Below: Sinton Trail access grading, Sept. 2016

Grading at Sinton trail access, September 2016

Below: Traffic switch, Sept. 2016

Traffic switch, September 2016

Below: Underdrain installation, Sept. 2016

Underdrain Installation, September 2016

August 2016

Below: Sinton Trail access, Aug. 2016

Sinton Trail Access, August 2016

 

Below: Centennial Blvd. at Starview, Aug. 2016

Centennial Blvd. at Starview, August 2016

 

Below: North of Chesham Circle, Aug. 2016

North of Chesham Circle, Aug. 2016

Below: South of High Tech Way, Aug. 2016

South of High Tech Way, August 2016