Ingersoll Streetscape Phases 1-3
The Ingersoll Streetscape Phases 1-3: A Project Overview
Beginning in 2020, The City of Des Moines Engineering Department began the Ingersoll Streetscape improvements starting at Ingersoll Avenue and Martin Luther King Jr. Parkway and extending to 28th Street and Ingersoll. The primary goal of these improvements was to improve roadway safety for all types of traffic that utilize this corridor, including improvements to walkability and sidewalks, improving pedestrian crossings, adding dedicated bicycle facilities, and burying utility lines.
Project Purpose and Goals
Safety: The main goal of this project is to improve roadway safety, multi-modal accessibility, and upgrade utilities and stormwater infrastructure.
Consistent Corridors: Create a vibrant commercial corridor with a uniform cross section.
The City of Des Moines Engineering Department held a virtual public meeting with information about this project on February 23, 2022.
Recording of the February 23, 2022 Meeting
City of Des Moines Engineering Department - Project Engineer
What is included in the utility upgrades?
- The entire corridor will be receiving a new. larger water main that will increase capacity within this neighborhood. This will also allow for more expansive fire protection.
- The overhead electric lines, overhead fiber and communications lines will be buried on the south side of the street and will provide a cleaner and safer look for the corridor.
- Additional storm sewer lines are being added along the street to help reduce large quantities of runoff. As part of the stormwater management plan, the City is installing permeable pavers in the parking areas to infiltrate the stormwater into the ground.
How will parking change along the corridor?
On-street parking will keep the on-street parallel parking throughout the entire corridor. It will be better defined by planter bump-outs and the parking material will be constructed with permeable pavers.
What changes will there be for pedestrian traffic?
Improving walkability for the corridor is one of the main goals of this project. The sidewalks are being replaced with larger sidewalks flanked by planters and an elevated bike lane. An additional mid-block crossing will be added just west of 24th Street and Ingersoll Avenue. This will include a new bus stop and an overhead flashing signal for pedestrians. These improvements are designed to calm traffic speeds and make the corridor safer for all modes of transportation.
How will the new bike lanes be constructed?
The bike lane will be raised, creating a vertical separation from the street. It is buffered on one side by the landscaped planters, and either by additional planters or on-street parking on the other side. This construction makes the bike lane accessible to a wider range of bicyclists and formally dedicated and protects space for bicyclists along the corridor.
Will there be more nature in the streetscape? Is it sustainable?
The design team specifically focused on green, sustainable designs for this streetscape project. Stormwater runoff will be managed and treated with permeable pavers in all of the parallel parking zones prior to any storm sewer intakes. This will allow for the reduction of runoff and the recharging of the groundwater table. Structural soil cells will also be added to all of the planter beds to allow for proper root growth of the trees and plants. These cells contain loosely compacted rich soil for the trees to promote healthy growth without compromising the pavements above. The goal of these design features is to allow the streetscape to be more friendly to the environment by reducing stormwater runoff and reducing the heat island by extensive plantings that can thrive.