Council
Communication
Office of
the City Manager
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Date
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April 7, 2008
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Agenda
Item No. 8
Roll
Call No. 08-
Communication No. 08-186
Submitted by: Jeb E. Brewer, P.E.
City
Engineer
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AGENDA HEADING:
Approving
and authorizing the execution of Iowa Department of Transportation (IDOT) Agreement
for 42nd Street
and Kingman Boulevard Intersection Improvements, and authorization to proceed
with acquisition of the necessary right-of-way and easements by gift,
negotiation, or condemnation.
SYNOPSIS:
Recommend
approval of IDOT Agreement No. 2008-TS-007 for Traffic Safety Improvement
Program project funding for 42nd
Street and Kingman Boulevard Intersection
Improvements. IDOT funds in the amount
of $300,000 are available for the construction costs. The City’s portion of the project, consisting
of the design, inspection, and construction costs, is estimated to be $60,000. This
action also recommends authorization to acquire necessary right-of-way and
easements for the above project. Iowa law requires this
action before the City can initiate the right-of-way acquisition process under
eminent domain.
FISCAL IMPACT:
Amount: $360,000
Funding
Source: Various funding sources as follows:
- $300,000 IDOT Traffic Safety
Improvement Program
- $60,000 - 2007-08 CIP, Page Traffic
Control Improvements-5, Citywide Signals, Channelization, and School
Crossing Protection Program, TFC091
ADDITIONAL INFORMATION:
In July of 2006, the City
Council authorized that an application be submitted to IDOT for the 42nd Street
and Kingman Boulevard Traffic Signal/Street Widening Improvements. IDOT has approved $300,000 of Traffic Safety
Improvement Program funds for this project.
The remaining costs, including design, inspection, construction, and
project administration, are to be funded by the City. The total City cost is estimated to be
$60,000.
This project, estimated at $360,000, includes 2-foot
widening on each side of 42nd
Street in the vicinity of Kingman Boulevard to construct northbound
and southbound left turning lanes, and for installation of traffic signals at
the intersection. The project will be
constructed within the existing right-of-way; except that small permanent and
temporary easements will be required on each of the four corners for grading
and construction of signal pole bases, sidewalk, and a retaining wall.
Based on the traffic accident history of this intersection,
the project has been approved for state Traffic Safety Improvement Program
funding. The intersection of 42nd
and Kingman had a total of 31 crashes in the 4-year analysis period of 2001-2005
(data from 2004 was not included, since 42nd Street was closed then
for I-235 bridge construction). Of these
31 crashes, 18 were right-angle type, which are generally correctable by
installing traffic signals. In addition
to the above-average accident history, this intersection experiences
substantial delay and congestion, for vehicular traffic, pedestrians and
bicyclists, especially during the morning and afternoon peak traffic periods. Because of the heavy traffic on 42nd Street,
it is very difficult for traffic on Kingman to cross or turn left onto 42nd Street. Vehicles that back up on Kingman frequently
block the path for students walking or biking to Hubbell
Elementary School or Roosevelt High School
to cross Kingman going to or from their school.
The signal installation will include full pedestrian signals and
accommodations to detect bicyclists, and will greatly improve both the safety
and operating characteristics of this intersection.
This project is within the boundaries of two neighborhood
groups. The Waveland Park Neighborhood
Association is to the west of 42nd
Street, and the Drake Neighborhood Association is
to the east of 42nd
Street. Staff
presented this project on October 2, 2007, at a Waveland Park Neighborhood
Association meeting and received input on the proposed project. Representatives
of both neighborhood groups, as well as property owners adjacent to the
project, were invited to attend this meeting.
The family that owns the house at the southwest corner of the
intersection expressed strong concerns and objections to both the proposed
signals and widening of the street, due to the closeness of their house and the
impacts to their property. However,
there was an overall consensus of those in attendance at the meeting that this
project was necessary and important to improve the overall safety and reduce
the congestion and delay at this intersection.
There are approximately four trees that will be required to
be removed in order to accommodate the widening. Options for planting new trees are very
limited due to the relatively narrow width of the remaining border area and the
presence of both overhead power lines and large underground utility ducts along
the west side of 42nd Street. However, the project plans will
include installation of new trees at locations in close proximity to the
project, to replace those that must be removed.
Overall, this project will have some significant impacts to
the adjacent residential properties, due to their closeness to the street. However, staff has taken great care in the
preliminary design of this project to minimize those impacts and mitigate them
to the greatest extent possible. The
street design will use narrower lanes to minimize the width, so the existing 31-foot
roadway will only be widened two feet on each side to provide the center
left-turn lane. The traffic signals are
also being designed to minimize the overall size of the overhead mast arms to
better fit the neighborhood character of the intersection, and will include
full pedestrian signals as well as sensitive detection for bicycles on Kingman.
Staff believes that the proposed improvements at this
intersection are necessary to improve the safety and operations of the
intersection and that the impacts of the proposed project have been minimized
through careful design details and the replacement of trees. Therefore, staff recommends approval of the
project agreement and authorization to proceed.
PREVIOUS
COUNCIL ACTION(S):
Date: July 24, 2006
Roll Call Number: 06-1472
Action: Traffic
Safety Fund Applications to the Iowa Department of Transportation for the
following projects: (Council
Communication No. 06-464) Moved by Hensley to adopt. Motion Carried 7-0.
(A) Army Post Widening from South
Union to SW 9th
Street. (B)
Hickman Road Restriping between 30th Street and Merle Hay Road,
Including Traffic Signals at 48th Street and Hickman Road. (C)
42nd Street at Kingman Boulevard Traffic Signal/Street
Widening Improvements. (D) Hubbell Avenue and Easton Boulevard
Intersection Traffic Signal Upgrading.
BOARD/COMMISSION ACTION(S):
Date: July 11, 2006
Action: The
Traffic Safety Committee approved recommendation that minor widening and
traffic signals be installed, and that an application be submitted to the IDOT
for funding utilizing the Traffic Safety Improvement Program.
ANTICIPATED ACTIONS AND FUTURE COMMITMENTS:
Normal actions
for award of the construction contract for the work.
For more information on this and other agenda items,
please call the City Clerk’s Office at 515-283-4209 or visit the Clerk’s Office
on the second floor of City Hall, 400
Robert D. Ray Drive. Council agendas are available to the public
at the City Clerk’s Office on Thursday afternoon preceding Monday’s Council
meeting. Citizens can also request to
receive meeting notices and agendas by email by calling the Clerk’s Office or
sending their request via email to cityclerk@dmgov.org.