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Pavement Management

The City plans for the maintenance and repair of roadways to optimize road pavement conditions across Barrie. The City’s pavement assets have a replacement cost of over $690 Million.

To look after this valuable asset portfolio the City employs a range of programs and strategies, from regular road patrols ensuring compliance with Provincial minimum maintenance standards to full reconstruction projects, and maintains a database of the City’s roads and their condition. On this page:

The Layers of a Road

Roads are constructed in multiple layers, each placed in several courses. The thickness and requirements of each layer and the total number of layers is dependent on factors such as weather, traffic volumes, and the native subgrade material on which the road is built. In general, Barrie's roads are constructed in 3 layers:

Wearing surface

The wearing surface of most roads in Barrie is asphalt, however roads can have a concrete surface.  Asphalt is typically placed in multiple layers, referred to as binder course (bottom layer) and surface course asphalt (top layer).

The wearing course, generally asphalt, acts as a “cap” on top of the pavement structure. The asphalt is used to not only provide a smooth riding surface for vehicles but also to prevent excessive amounts of water from entering into the pavement structure.

Aggregate base

Placed in multiple layers, the aggregate base normally has larger sized granular material on the bottom and granular material with smaller particle sizes on top.  This material is considered “free-draining” material, which means that it allows water to permeate through the layers and absorb into the subgrade.

Subgrade

Subgrade is typically naturally occurring material or may be imported fill on which the road is built.

Note: the City also owns other infrastructure below the road such as sanitary and storm sewers and watermains.

All layers act together and allow water to move from one layer to another until it reaches the subgrade where it's absorbed. Preservation activities completed on roads early in their life prevent water from seeping into the pavement structure through cracks and holes in the wearing surface. By taking care of the asphalt the City maintains the semi-impervious “cap” on the road.

How Roads Deteriorate

Many defects and road deterioration can be caused by excessive and continual water seepage into a pavement structure. When water is allowed to move through the asphalt and into the aggregate base, it weakens the structural integrity of the road and the normally harmless traffic will cause damage to the road over time.

The Freeze-Thaw Cycle

Because Canada experiences cold and warm seasons, Barrie's roads are exposed to freezing and thawing cycles. When water seeps through the cracks of the asphalt and freezes, the water expands and causes new cracks to form and the already existing cracks to become larger.

Pavement Renewal Strategies

In between a road’s initial construction and when it needs full replacement (reconstruction), there are several options that can reduce the total amount needed to be spent on roads to keep them in good condition and meet desired levels of service.

Preservation strategies, used earlier in the life of pavement when the road is still in good condition, are less expensive and faster to complete compared to strategies applied later in the life of the pavement, when the road has deteriorated more.

Early-life Pavement Preservation Techniques

These include techniques such as reclamite, micro surfacing, slurry sealing and fog sealing to extend the life of pavement surface assets that are in the early stages of deterioration. Pavement preservation techniques typically involve application of thin, bituminous-based products to existing pavement. They differ from resurfacing techniques because they:

  • do not involve the removal of existing surface material.
  • are less costly.
  • are applied earlier in the pavement life.
  • can be applied in a short amount of time, resulting in minimal disruption.

The City is completing a pilot project, which started in 2018 and is anticipated to finish in 2021, to test some of these techniques.

Road Resurfacing

Resurfacing is also considered preservation as it is a proactive approach. Timely application of partial depth resurfacing preserves and protects the road structure, preventing rapid deterioration in pavement and risks due to unsafe driving conditions.

Resurfacing addresses problems on the roadway surface by replacing all or part of the top layer of asphalt pavement. It addresses issues like potholes, cracking, hummocks, bumps, and patches of street cuts (created by utility or other underground work).

Construction typically involves a milling machine that grinds off all, or a portion of the existing asphalt and then placement of a new asphalt surface. This work can usually be completed within a few days and is substantially less expensive than full road reconstruction.

Candidates for the Road Resurfacing Program typically include pavement in fair to good condition, where the subsurface infrastructure (sewers and watermains) do not require any rehabilitation. Geotechnical investigation is undertaken to confirm specific treatment recommendations.

End of Life Holding Strategies

In contrast with the Road Resurfacing Program, the End of Life Pavement Replacement Program is a reactive technique. Some roads in Barrie have failed and are not delivering the expected or desired level of service, but they aren’t planned to be reconstructed in the short term. A holding strategy is a relatively minor investment to achieve a short term service improvement until more permanent improvements are made. Candidate roads would be those where reactive maintenance activities (like pothole filling) and associated costs, are unusually high.

Candidates for the End of Life Pavement Replacement Program are in very poor to poor condition (the road has stopped providing an adequate level of service to the public). The subsurface infrastructure can range in condition from good to poor. Geotechnical investigation is undertaken to confirm specific treatment recommendations.

Reconstruction

Reconstruction involves removal and replacement of the asphalt surface of a road and the granular base and sub-base material (Aggregate Base). Typically, reconstruction is required when the road base has failed and reached the end of its life, when subsurface pipes require replacement or the road is being widened. 

Reconstruction is the most expensive way to treat a road and usually requires at least one full season for construction to complete. While this work is necessary in some circumstances, it can be deferred by investing in proactive treatments like those described above.

Pavement preservation activities are often equated to fixing the roof on your house. Replacing the shingles at regular intervals prevents water from getting into the house structure, which could cause expensive structural damage. Appropriately timed preventative investment in roads keeps water out of the pavement layers preventing cracks and defects from forming.

Candidate Lists for Annual Pavement Renewal Programs

The candidate lists below are not final lists of roads that will be rehabilitated. Candidates meet the initial criteria for the Road Resurfacing or End of Life programs and, based on current data, are considered the most critical.

2021–2025 Road Resurfacing Program

A
Adam – Puget St to Johnson St
Alexander Ave – Johnson St to Oliver St
Anne St N – Cundles Road to Austen Lane
Anne St N – Valley Dr to Shelley Lane
Anne St N – Castle Dr to Edgehill Dr
Anne St S – Tiffin St to Essa Road
Ardagh Road – Essa Road to Ferndale Dr S
Ardagh Road – Wright Road to Hwy 27
Armstrong Blvd – Springhome Road to Leacock Dr
Austen Lane – Anne St N to Leacock Dr
B
Bayfield St – Simcoe St to Wellington St E
Bayfield St – Dalton St to Grove St E
Bayview Dr – Little Ave to Springhome Road
Bayview Dr – Lockhart Road to Churchill Dr
Berczy St – Dunlop St E to Collier St
Big Bay Point Dr – Huronia Road to Grand Forest Dr
Big Bay Point Dr – Hurst Dr to Britannic Lane
Blake St – Collier St to Cook St
Blake St – Nelson Sq E to Puget St
Bradford St – Tiffin St to Dunlop St
Broadfoot Road – Leacock Dr to Fox Run
Burton Ave – Essa Road to Milburn St
C
Caplan Ave – Bryne Dr to Hunter Road
Cedar Pointe Dr – Dunlop St to Edgehill Dr
Clapperton St – Dunlop St W to Collier St
Collier St – Bayfield St to Blake St
Cundles St E – Lion’s Gate Blvd to Duckworth St
Cundles St W – Coulter St to Bayfield St
D
Donald St – Wellington St W to Anne St N
Doris Dr – Ridgeway Ave to Highcroft Road
Downsview Dr – Blake St to Steel St
Dunlop St E – Poyntz St to Sampson St
Dunlop St E – Berczy St to Collier St
Dunlop St W – Miller Dr to Sarjeant Dr
E
Eccles St S – Dunlop St to Innisfil St
Eden Dr – Leacock Dr to Fox Run
Essa Road – Gowan St to Bradford St
Essa Road – Anne St S to 100m N of Anne St S
F
Ferndale Dr N – Ferndale Industrial Dr to Edgehill Dr
Ferndale Dr S – Greenwich St to Hawthorne Cres (south)
Farris Lane – Collete Cres to Cundles St E
Fox Run – Edgehill Dr to Leacock Dr
G
Georgian Dr – Duckworth St to Gallie Court
Glen Court – Springhome Road to Glen Court
Grand Forest Dr – Big Bay Point Road to Golden Meadow Road
Grove St E – Fletcher Dr to Penetanguishine Road
H
Hamilton Road – Welham Road to Truman Road
Hanmer St E – Bayfield St to St. Vincent
Hart Drive – Dunlop St W to Tiffin St
Hemingway Cres – Fox Run to Fox Run
High St – Bradford St to Dunlop St W
Highcroft Road – Broadmoor Ave to Little Ave
Hooper Road – Saunders Road to Welham Road
Hunter Road – Caplan Ave to End
Huronia Road – Big Bay Point Road to Mapleview Drive E
I
Innisfil St – Perry St to Vespra St
L
Lakeshore Drive – Victoria St to Lakeshore Drive/Tiffin
Little Ave – Carol Road to Broadmoor Ave
Livingstone St W – Ferndale Drive N to Bayfield St
Lorena St – John St to Brock St
M
Maple Ave – Simcoe St to Dunlop St W
Mapleview Drive W – County Road 27 to Essa Road
Meadowland Ave – Broadmoor Ave to Springhome Road
Miller Drive – 255m NW of Dunlop St W to Sproule Drive
Minet’s Point Road – Yonge St to Hurst Drive
N
Napier St – Puget St to Johnson St
O
Oliver St – Alexander Ave to Steel St
P
Paterson Road – Ardagh Road to Tiffin St
Penetanguishene Road – Steel St to End
Perry St – End to Dunlop St W
Puget St – Blake St to Steel St
R
Rawson Ave – Lockhart Road to Saunders Road
Robin Court – St Vincent St to End
Rose St – St. Vincent St to Duckworth St
Ross St – Toronto St to Bayfield St
S
Sampson St – Dunlop St E to Berczy St
Shanty Bay Road – Blake St to End
Simcoe St – Bradford St to Dunlop St E
Sperling Dr – St Vincent St to Cundles Road E
Springhome Road – Joanne Court to Armstrong Blvd
St Vincent St – Hanmer St E to End
T
Tiffin St – Essa Road to Anne St S
Tiffin St – Boulton Court to Ferndale Dr N
Tollendal Mill Road – Hurst to Tollendal Village Entrance
Tollendal Mill Road – Royal Oak Dr to Cox Mill Road
Toronto St – Lakeshore Dr to Simcoe St
Truman Road – Huronia Road to Hamilton Road
V
Varden Ave – Napier St to Steel St
Varden Cres – End to Napier St
Veteran’s Dr – Mapleton Ave to Essa Road
Veteran’s Lane – Veteran’s Dr to 25m S of Montserrand St
Vine St – Shirley Ave to Letitia St
W
Weldon Cres – Weldon St to Weldon St
Wellington St E – Berczy St to St Vincent St
Wellington St E – Wellington St E to Wellington St E
Wellington St W – Donald St to Bayfield St
Y
Yonge St – Ashford Dr to Big Bay Point Road

2021–2024 End of Life Pavement Replacement Program
  • Agnes St – Lount St to Peel St
  • Ferndale Industrial Dr – End to Ferndale Dr N
  • Fairview Road – Little Ave to Big Bay Point Road
  • Lockhart Road – Saunders Road to Huronia Road
  • Shannon St – St Vincent St to Marion Cres
  • Saunders Road – Welham Road to Huronia Road
  • Welham Road – Saunders Road to Hooper Road
  • Vancouver – Codrington to Napier
Last updated: November 2020.

Staff refine candidate lists annually by obtaining geotechnical information that provides additional data to determine whether certain locations are still viable and critical candidates. Upon analyzing the geotechnical investigation data annually, sections of roads sections of roads on the above candidate lists may be removed from consideration, while others may be advanced.

Windows of Opportunity

There is a window of opportunity in the life of a pavement where some treatments are suitable and others are not. For example:

  • preservation activities performed on a road that has failed will have little to no impact and will be wasted effort.
  • full reconstruction of a road that is young and in fair condition is unnecessary.

By completing treatments at the appropriate time within the recommended window of opportunity, the City can extend the life of a road, and reduce the total investment over the long term.

In an attempt to mitigate the effects of freeze-thaw cycles and other pavement deterioration, the City is currently (2018 to 2021) piloting an Early-life Pavement Preservation Program in addition to continuing the Pavement Resurfacing Program. These programs aim to align the window of opportunity for each road with the appropriate pavement management treatment.

Cost of Renewal Strategies

The cost to reconstruct a road is 8 times that of pavement preservation. That means that by investing $1 in proactive pavement preservation, we can defer $8 worth of reconstruction. See diagram.

Asbestos in Asphalt

Asbestos was used as an additive to asphalt from the 1960s to mid-1980s, added to asphalt mix to provide greater strength and performance. It is not used in asphalt anymore, but in many municipalities roads that were built between the 1960s and early 1980s could contain asbestos.

Asbestos is bound within the pavement, so there is very low risk to the public. Even when asphalt containing asbestos breaks down, it’s still bound within the asphalt. It does not pose a risk until it’s airborne, which happens when it’s cut into during the construction process.

Before road construction or maintenance begins, the City first tests the asphalt for asbestos. If the asphalt contains asbestos, special precautions are taken by workers removing the asphalt. These provincially legislated precautions include wetting the asphalt to prevent the dust from becoming airborne, and workers are required to wear proper protective equipment.

Asbestos in Asphalt: Frequently Asked Questions
Are there any plans to repave the roads containing asbestos?

The City reviews road conditions and determines rehabilitation locations every year based on need and available funding. When the repaving of any roads containing asbestos is scheduled, the work will take place in accordance with the practices described above.

Road pavement resurfacing needs are identified using condition assessment data that is collected for the City’s entire road network and best practices for asset management as outlined in the City’s Asset Management Plan. These studies generate condition ratings on the City's roads and provide tools to prioritize the required work. Criteria that are used include traffic volumes, road classification, where the road is in its lifecycle, the value for money that the work could provide and needs of subsurface infrastructure within the roadway.

How is asphalt that contains asbestos disposed of?

Asphalt containing asbestos is taken to a provincially approved disposal site. It is not discarded at the Barrie Landfill.

Will I be notified of road projects in my area where asbestos is present?

Yes, if it is a City of Barrie road construction project and staff test for asbestos and find it present, residents/businesses in the area will be informed. This will be done via an Information Bulletins that are delivered to homes/businesses.

Although there is very low risk to the public, residents can choose to keep their doors and windows closed and avoid the area during the time asphalt removal/cutting is taking place (usually one or two days during the overall asphalt repaving project). If the asphalt contains asbestos, special precautions are taken by the workers when removing the asphalt. These precautions include wetting the asphalt to prevent the dust from becoming airborne and workers are required to wear proper protective equipment. As well, you should not pick up loose pieces of asphalt from the roadway.

Where can I learn more about asbestos?

Pavement Management: Frequently Asked Questions

Are Barrie’s roads in good condition?

Generally, yes.  In 2019, Barrie’s road network had an average Pavement Condition Index of 75, which is considered to be in Good condition. The City is fortunate to have a relatively young road network, the majority of which was constructed over the last 30 years. However, the road network is reaching the age at which it will start to deteriorate more rapidly if we don’t look after them and invest appropriately.

graph: condition of Barrie roads 

Does the City know which roads are in poor condition?

Yes, the City maintains a database of the City’s roads and their condition. Pavement condition is described using a Pavement Condition Index (PCI), measured out of 100, where 100 is new pavement. The City typically hires a contractor to undertake a pavement condition assessment of every road in Barrie every four years. The last pavement condition assessment was completed in 2019. During the time between the pavement condition assessments, the City degrades the PCI (which was obtained from the most recent assessment) annually until a new PCI can be obtained through a new pavement condition assessment. The 2020 Pavement Condition Map includes the most recent condition ratings for roads throughout Barrie.

How does the City decide which roads to fix?

Some roads in poor condition require complete reconstruction along with replacement of aging, deteriorated sewers and watermains that are beneath the road surface. In other situations, we schedule appropriately timed lifecycle activities, which we often equate with fixing the roof on your home or changing the oil in your car – periodic investment in preventative maintenance extends the lives of roads and other assets and defers more costly investment.

The pavement resurfacing needs are identified using condition assessment data that is collected for the City’s entire road network and best practices for asset management as outlined in the City’s Asset Management Plan. These studies generate condition ratings on the City's roads and provide tools to prioritize the required work. Criteria that are used include traffic volumes, road classification, where the road is in its lifecycle, the value for money that the work could provide and needs of subsurface infrastructure.

Why did the City just do construction on a road that seemed like it was in good condition? There are lots of worse roads in Barrie.

Although the road may not have appeared to be in poor condition relative to other road surfaces in the City, it would likely have been showing early signs of deterioration such as longitudinal and transverse cracking with localized depressions at service crossings and catch basin. Chances are, this work was part of the City’s road resurfacing program. Roads that are candidates for this program are generally newer and in better condition than those that require full reconstruction. This type of work is often equated with changing the oil in your car – periodic investment in preventative maintenance, which extends the lives of roads and other assets and defers more costly investment. The cost of this type of activity is significantly less expensive than full reconstruction.

By undertaking resurfacing or other pavement preservation activities, we will have extended the life of the remaining road structure (base asphalt and granular material), maintained the level of service to the public and prevented the road from slipping to the next level of deterioration, where rehabilitation would have been more costly and disruptive.

diagram: pavement preservation vs reconstruction  
Isn’t it a waste of money to fix a road that’s in good condition?

Timely application of road resurfacing activities preserves and protects the road structure, thereby preventing rapid deterioration in pavement condition and the need for costly reconstruction. Risks due to unsafe driving conditions are also reduced. Resurfacing has been demonstrated to be effective in reducing the life-cycle cost of roads when applied at the right time as a part of a comprehensive pavement preservation approach. Every $1 invested in road resurfacing can defer up to $8 in road reconstruction.

 

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