Memorandum
City of Lawrence
Department of Public Works
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TO: |
Mike Wildgen, Dave Corliss, Debbie Van Saun
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FROM: |
Chuck Soules
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CC: |
Terese Gorman, David Woosley, Bill Ahrens
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Date: |
November 17, 2004
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RE: |
Intersection Improvements
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Please include the following item on the City Commission consent agenda for consideration at the November 23, 2004 meeting:
Project Description. Signalization of Bob Billings Parkway (15th Street) and Wakarusa Drive.
Project Description/History. On October 19, 2004 the City Commission received the Intersection Priorities Report and Traffic Safety Committee recommendations. The City Commission directed staff to proceed with the intersection improvements at Bob Billings Parkway and Wakarusa Drive. All the approaches to this intersection currently maintain a left turning lane and, therefore, no physical changes (geometrics) to the intersection are necessary. The improvements will include the installation of a traffic signal (including poles, mast arms, controller, video detection) and pavement stripping.
Project Details.
o City staff will lay out the intersection and provide direction/oversee the installation.
o The city will purchase all equipment.
o The city will hire a contractor to dig footings, set the poles, mast arms, and signal equipment.
o Estimated Project Costs:
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Estimated Equipment Costs: |
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Video |
$20,000 |
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Controller |
2,500 |
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Battery back up |
4,000 |
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Opticom |
2,500 |
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4 poles and mast arms @ $7,500/ea. |
30,000 |
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Miscellaneous items: conduit, wiring, junction boxes, signal heads |
25,000-30,000 |
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$85,000-$90,000 |
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Estimated Subcontractor Costs: |
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Dig and pour footings – 4 @ $2,500/ea. |
$10,000 |
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Set poles and mast arms – 4 @ $2,500/ea. |
10,000 |
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Wire poles – 4 @ $2,000/ea. |
8,000 |
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Install signal heads |
4,000 |
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Bore and pull wiring |
20,000-25,000 |
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Install cabinet |
2,500 |
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Set up and turn on system |
1,000 |
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$55,000-$60,000 |
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ADD – 20% Miscellaneous contract items |
10,000 |
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$150,000 – $160,000 |
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ADD – Utility adjustments |
20,000 |
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ADD – 10% Contingency |
15,000 |
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ESTIMATED TOTAL |
$185,00 - $195,000 |
o There is conduit under the street if it is still useable (not plugged up). We will pull wire through the existing conduit. If not useable we will hire a contractor to bore the street and install conduit.
o The city will act as the general contractor on this project. As such, and with the Traffic Division’s experience, we will not be hiring an engineering firm to develop a set of plans. As built plans will also be completed in house upon completion of the project. Without the cost to develop plans and by providing the general contractor’s role, the city will realize a savings estimated at $30,000 +.
o The second phase of the motion of the City Commission at their October 19th meeting included that a study be completed of the Wakarusa Corridor (from 6th Street to Clinton Parkway) to identify and recommend other transportation improvements of this arterial road.
o On November 2, 2004 staff met with the City Manager and recommended that the City has the staff capable to provide the City Commission with a report of the Wakarusa Corridor. Although we do not have the software to process simulation models, city staff has the knowledge and capability to provide recommendations as to which areas/intersections will need to be improved. Specific design and alternatives will then need to be completed by an engineering/consulting firm. Anticipated schedule for completion February/March 2005. See attached memo from Bill Ahrens, Transportation Planner.
Project Funding. Provided for the City Commission’s approval is Resolution No. 6572 authorizing the issuance of General Obligation Bonds for this project.
Action Request. Approve Resolution 6572.
Respectfully submitted,
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Chuck Soules
Director of Public Works
Attachment