Troy Village Road Rehabilitation
Design Study Report
Introduction
Cedar Corporation has prepared this report investigating the condition of existing public and Homeowner Association owned infrastructure within the Troy Village subdivision. The Town of Troy Board approved this study as part of a supplementary planning effort to develop project scopes and schedules for improvement projects across the 4.25-miles of roadways in Troy Village.
This study seeks to address pressing infrastructure needs while ensuring alignment with goals, priorities, and the financial capacity of the Town of Troy. Using local road funds most efficiently requires good planning and accurate identification of appropriately scoped projects. By engaging stakeholders to discuss these engineering findings, this study aims to lay the groundwork for maintaining the long-term quality of road function within the Troy Village subdivision.
Project Overview Map - Troy Village Subdivision
Geotechnical Investigation
On the dates of January 29th and 30th, 2024, twenty-five (25) soil test borings to a depth of about 4 feet below ground surface were performed for this project by Professional Service Industries, Inc. The purpose of the soil borings was to classify the subgrade soils at the boring locations and to provide DOT pavement design parameters.
Summarized Results
Eleven (11) samples, obtained from directly beneath the base course material to a depth of about 2 feet, were subjected to mechanical grainsize analysis testing to aid in the determination of asphalt pavement coefficients. The complete results of the testing are summarized on the adjacent map (click on each soil boring point to view the complete results) and the table below.
The samples are categorized into 2 AASHTO Soil Classifications:
- A-1-b Soils: A-1-b soils are a subset of A-1 soils and are considered excellent for engineering purposes. These soils consist predominantly of well-graded sands or gravelly sands. The "b" suffix indicates that the soil contains a significant amount of fines, typically in the form of silt. Despite the presence of fines, A-1-b soils still exhibit excellent drainage characteristics and good engineering properties. They are suitable for various construction applications, including road embankments, foundations, and pavement bases. However, some additional consideration or treatment may be necessary due to the presence of fines.
- A-2-4 Soils: A-2-4 soils are a subset of A-2 soils and are considered good for engineering purposes. These soils consist predominantly of poorly graded sands or gravelly sands with a significant amount of fines. The "4" suffix indicates that the soil contains a substantial percentage of silt. Despite the presence of fines, A-2-4 soils still exhibit good drainage characteristics and acceptable engineering properties. However, they may require more attention and treatment compared to A-1 soils due to the higher proportion of fines. A-2-4 soils are suitable for various construction applications, but their engineering behavior may warrant additional considerations during design and construction.
In summary, both A-1-b and A-2-4 soils are subsets of their respective main classifications, indicating the presence of fines within predominantly granular materials. While they still offer good engineering properties, the higher fines content in these subcategories may necessitate additional considerations or treatments in construction projects.
Existing Infrastructure
Initial Road Plans
Initial road plans for Troy Village were created in 1997 and can be seen by clicking on the button below.
2023 PASER Ratings
The Wisconsin Information System for Local Roads (WISLR) is a web based system that Wisconsin local governments use to submit local road data and pavement condition ratings. These ratings need to be updated every other year. In 2023, these pavement condition ratings were updated for the Troy Village Subdivision. In total, there are twenty-three (23) different road segments which average a pavement rating of 4.2 (with 10 being the highest rating).
Troy Village Subdivision 2023 Pavement Ratings
A summary of the asphalt pavement surface conditions is shown in the image below. To view the full PASER manual, click on the button below.
PASER Rating System Summary
Road Width
All of the road segments with then Troy Village Subdivision have a road width of 26 feet. A typical existing section is shown below.
Image of a typical existing road section.
Storm Sewer
The green lines on the adjacent map show the approximate location of storm sewer main lines. Depending on the project cost option chosen for this project (summarized below), the storm sewer within the subdivision may be impacted.
Project Cost Options
Cedar Corporation is presenting three (3) different cost options for the Troy Village Subdivision Road Reconstruction project. Each option contains a typical proposed section drawing. For comparison, below is a typical existing section drawing.
Image of a typical existing section.
Option A
Summarized project notes for option A include the following:
- 24,000 LF of Roadway (~4.5 total miles)
- Existing asphaltic curb and storm sewer to remain
- Sawcut / 6" pulverize 24' on center of all streets
- Re-grade pulverized base
- 3" asphaltic pavement
Image of a typical proposed section of Option A
Total project cost for option A = $2,157,300.00 A complete breakdown and details for Option A can be found by clicking on the button below.
Option B
Summarized project notes for option B include the following:
- 24,000 LF of Roadway (~4.5 total miles)
- Existing storm sewer to remain
- 6" pulverize 24' on center of all streets, Excavate existing asphaltic curb
- Re-grade pulverized base
- 3" asphaltic pavement, 24" mountable concrete curb and gutter
Image of a typical proposed section of Option B
Total project cost for Option B = $3,748,500.00 A complete breakdown and details for Option B can be found by clicking on the button below.
Option C
Summarized project notes for option C include the following:
- 24,000 LF of Roadway (~4.5 total miles)
- Total reconstruction of streets and storm sewer
- Storm sewer replaced in kind
- 3" asphaltic pavement, 8" aggregate base, 12" granular subbase
- 28' street bc to bc, with 24" mountable curb and gutter
Image of a typical proposed section of Option C
Total project cost for Option C = $7,408,600.00 A complete breakdown and details for Option C can be found by clicking on the button below.
Project Estimator Dashboard
The following dashboard can be used to estimate project costs for selected segments based on the 3 options provided above. Click on the dashboard below to start interacting. Note that the dashboard will open in a separate browser tab.
5 Year CIP
Below is the Town Board approved 5-Year Capital Improvements Plan for the Town of Troy.
Website 604 Wilson Avenue Menomonie, Wisconsin 54751 Phone Number: 715-235-9081 Fax Number: 715-235-2727
