Road Grading, Construction and Maintenance

How are roads built?

A road is made up of three layers: 

  • The surface – the top level of the road (for sealed roads)
  • The pavement – made up of one or more layers of gravel known as the base and sub-base to strengthen the road, and is generally 300-500mm thick 
  • The sub-grade – a natural material beneath the pavement that consists of clay, ironstone and sometimes rock.

How do potholes form in sealed roads?

Heavy traffic and natural ageing causes cracks in the surface or underlying pavement. Rainwater seeps through these cracks into the base material beneath. The vibration of traffic causes the wet base material to settle or shift, forming a cavity. Without base support, the pavement weakens further and ultimately caves in, causing a pothole. 

How are potholes repaired in sealed roads?

Potholes are filled with a mixture of asphalt and gravel. Potholes are repaired as a temporary solution in the winter to improve road safety for motorists. Potholes are also repaired as a temporary solution until the road is prioritised for major patching or reconstruction under the capital works program. 

Council relies on the protection from liability under section 21(4) of the Local Government (Highways) Act 1982 and considers the principles of the Civil Liability Act 2002. Each claim made against the Council is considered on its own merits. If you have concerns, please contact us for more information.

What is major patching in sealed roads? 

Major patching is used to repair multiple potholes and failures in the road surface and underlying pavement. This is where a larger section of road is removed, and both the surface and pavement are replaced. These works require dry weather and are usually carried out in the summer months. 

What is re-sealing?

Re-sealing is a proactive road maintenance program that works to prevent potholes and small cracks starting to form in the road seal, which allow water to seep into the road pavement. Resealing involves spraying bitumen on to the road surface, providing a new waterproof barrier. Road sealing is carried out every 10 to 15 years to extend the life of our roads.

What is does it mean to renew a sealed road?

This is the full reconstruction of a road when roads are at the end of their useful life. The tell tail signs of a failing road include wheel lane rutting, potholes and edge breaks. A geotechnical investigation of the old road pavement determines the strength of the road and informs the new design that will ensure the road is built to cater for future demands and traffic loads.

What causes corrugations on the road? 

When a vehicle travels at speed on a soft surface there will inevitably be small imperfections or undulation in the surface. When the wheel travels over the undulation it will bounce slightly, reducing weight on the wheel for a moment, then landing a moment later which compresses the surface. That creates a tiny crest and dip. The next wheel over does the same again, but worsening the problem. Every subsequent wheel makes the problem worse and worse and then you have corrugations.

How often is road grading conducted?

Distributor Roads like Pelverata Road, Lonnavale Road, North Huon Road and Mountain River Road are scheduled to be graded up to three times a year, while Local and Collector roads are generally graded once or twice a year, and minor roads are graded less often. Emergency works and pothole filling are done as needed between scheduled gradings. The grading schedule is flexible and adjusted based on road conditions, traffic volume, and weather events to ensure all roads are maintained as effectively as possible.

How are roads prioritised for maintenance?

Roads are inspected based on several factors, including the number and severity of potholes, corrugations, ruts, drain conditions, road classification, traffic volume, and risk assessment. Roads with higher traffic volumes and worse conditions are prioritised to ensure safety and usability.

Can I get a specific date for when my road will be graded?

It is difficult to provide a fixed schedule for road grading as the condition of unsealed roads changes rapidly depending on weather conditions and traffic volumes.  Council adjusts the schedule frequently to ensure that the roads in the worst condition and with the highest traffic volumes are graded as a priority.  A weekly schedule is posted on Council’s website but even this is subject to change. 

Will there be road closures during maintenance?

There may be temporary road closures during maintenance to ensure the safety of both the workers and the public. These closures are usually brief and well-signposted. We appreciate your patience and understanding during these times. Alternative routes will be provided where possible to minimize inconvenience.

Property Access and Driveways

Who is responsible for my driveway crossover?

The installation and maintenance of property accesses, which connect the public road to a private driveway, is the responsibility of the property owner who benefits from the access.

What should I do if my property access is not compliant with standards?

If your property access is not compliant with the Tasmanian Standard Drawings, we suggest upgrading it to these standards.  A compliant access will help to prevent damage to the property access, the driveway and the road. The property owner is responsible for the maintenance and compliance of the property access. You may need to apply for a permit to carry out works within the Council road reservation.  Please contact Council for further information.

How does the council handle storm damage to private driveways

Council is not responsible for maintaining private driveways. Upgrading the property access to a compliant access can help manage water flow and prevent damage. You may need to apply for a permit to carry out works within the Council road reservation. If you need further information on upgrading the access, please contact us.

Vegetation and Environmental Management

Can I plant in the rural road reserve?

Planting in the road reserve is not permitted due to potential future development needs and maintenance requirements. Please refer to Council’s Nature Strip and Road Reserve Policy.

Can I plant in my urban nature strip?

Some planting is permitted. Please refer to Council’s Nature Strip and Road Reserve Policy for details.

How does the council handle tree maintenance?

Trees are trimmed or felled only if necessary for safety. Requests for tree inspections are prioritised based on the risk to road users, people and property.  If you have concerns, please provide photographs of the entire tree, including its surroundings, to support your request. You can lodge your enquiry via Council’s website or send an email to hvc@huonvalley.tas.gov.au.

Council relies on the protection from liability under section 21(4) of the Local Government (Highways) Act 1982 and considers the principles of the Civil Liability Act 2002. Each claim made against the Council is considered on its own merits. If you have concerns, please contact us for more information.

How does the council handle tree maintenance on nature strips?

Council does not maintain nature strips which front private properties. This is the responsibility of the property owner. Residents are not permitted to plant trees in the nature strips/road reservations without prior approval from Council. Trees are trimmed or felled on the roadside by Council only if necessary for safety.

Council has limited resources for tree works and received many requests from the public. Tree works are prioritised and we are unable to trim or fell a tree unless it is a significant risk to road users, pedestrians or property.

How does the council handle roadkill?

Council does not routinely collect roadkill but responds to reports when it poses a hazard to road users. If you notice roadkill causing a hazard, please report it to the Council. We aim to address such issues promptly to ensure road safety.

How does the council handle dust suppression on roads?

Dust suppression is not an effective solution for public roads. Huon Valley Council has trialled several different products and found the effect was minimally effective and short-lasting. Effective solutions include reducing speed limits and applying sheeting gravel with less clay fines. Sealing roads is cost-prohibitive and not planned in the short to medium term.

Traffic and Parking

What are the rules for parking on the side of the road?

Vehicles must leave a 3-meter-wide space for traffic to move through. Vehicles can park legally on rural road reserves as long as the 3 metre rule is applied.  Parking on footpaths is not permitted.  Residents may park on their own nature strip. If there is a solid white line in the middle of the road, there should be 3 meters of space between the parked vehicle and the solid white line. Violations can be reported to the police.  Refer to “Tasmanian Road Rules” online for more information on parking rules.

Can I park on my nature strip?

Residents may park on their own nature strip providing they are not obstructing other road users.

How are speed limits on roads determined?

Speed limits are set based on road conditions and crash data. The default speed limit for unsealed roads is 80 km/h, for sealed roads, it is 100 km/h and for urban roads in built up areas, it is 50 km/h, unless otherwise posted. Speed limits are a maximum speed, not a target speed, and motorists must drive according to the conditions. Changes to speed limits require approval from the Transport Commission.

Can Council provide disability parking on the street?

The Australian Standard (AS 2890.5-1993) states that parking spaces for people with disabilities should be in angle parking as the provision of wheelchair access in parallel parking spaces can be difficult. It is more practicable to provide specific side street or off-street parking areas with accessible parking spaces that are clearly signposted.

What should I do if I want to install a convex safety mirror?

The installation of convex safety mirrors is discouraged due to potential misinterpretation of images and other safety concerns. Convex mirrors can create distorted views and may not be effective in all conditions. The Department of State Growth advises against their use. If you have visibility concerns, please contact us for alternative solutions.

Drainage and Road Infrastructure

How does the council handle drain maintenance?

Roadside drains are cleared as part of the maintenance program. Requests for drain clearing are forwarded to the Civil Works Department, but it may be some time before the request is actioned due to scheduling. Providing photographs of the current condition of the drain can help prioritise the work and ensure timely maintenance.

Can Council drain stormwater onto my property?

In accordance with Local Government (Highways) Act 1982, “The corporation may make, cleanse, and keep open all drains and watercourses which it considers necessary in and through any land adjoining or near a local highway maintainable by the corporation”.  If you need further information, please contact us.

When will roadside slashing be done?

Council operates two roadside slashers on a continuous basis on municipal roads throughout the valley. Our aim in slashing is to improve public safety and maintain drainage. Council tries to ensure all areas are maintained regularly and efficiently, with priority shifting around major events like the Huon Show and Cygnet Folk Festival. Spring and early summer are challenging times due to the rate of vegetation growth and Council receives many enquiries at this time. Unfortunately, we are not able to jump from place to place to respond to individual requests. If you have specific concerns, please contact us with details.

Reporting and Responsibilities

How can I report the condition of a road or drain?

You can lodge an enquiry or complaint via Council’s website.  Please provide as much detail as possible, describing the problem and where it is.  Alternatively, call our customer service team on 6264 0300 or send an email to hvc@huonvalley.tas.gov.au. Photos help prioritise maintenance works by providing visual evidence of the current conditions. This assists our crews in assessing and addressing issues more effectively. Only take photographs of the road or drain if safe to do so.

Will Council provide warning signs for potholes and corrugations?

It is not standard practice to install warning signs for potholes and corrugations as unsealed road conditions can change rapidly. Drivers are expected to drive according to the conditions. If you feel a road is in a dangerous condition, please report it via Council’s website. Alternatively, call our customer service team on 6264 0300 or send an email to hvc@huonvalley.tas.gov.au. Photos help prioritise maintenance works by providing visual evidence of the current conditions. This assists our crews in assessing and addressing issues more effectively. Only take photographs of the road or drain if safe to do so.

Can I request the sealing of an unsealed road?

Sealing unsealed roads is cost-prohibitive, and no funds are allocated for this in the short to medium term. The capital cost and ongoing maintenance of sealed roads far exceeds those of unsealed roads. Council focuses on maintaining the existing road network to ensure safety and usability.

Can I request private works from the council?

Unfortunately, Council is unable to assist with any private works due to its own workload. You may wish to contact a civil works contractor for a quote. Council focuses on maintaining public infrastructure and does not have the resources to undertake private projects.

Can I request a new streetlight?

Generally, Huon Valley Council does not provide street lighting on its roads unless through a fully built-up area or to highlight intersections which are difficult to identify.

Can I request warning signs for animals (roadkill)?

Unfortunately, roadkill occurs on every road and historically signs have had very little, if any, effect.  For that reason, Council does not provide warning signs.

Who is responsible for damages caused by poor road conditions?

Council relies on the protection from liability under section 21(4) of the Local Government (Highways) Act 1982 and considers the principles of the Civil Liability Act 2002. Each claim made against the Council is considered on its own merits. If you have concerns, please contact us for more information.

Public Works and Permissions

Can I carry out maintenance work on council roads?

Members of the public are not permitted to carry out works on council roads without a permit. Unauthorized work can result in fines and the need for retrospective permits. Maintenance of roads requires specific methods and materials to ensure safety and compliance with regulations.

What should I do if I see members of the public filling potholes themselves?

Members of the public are not permitted to carry out works on Council’s roads without a permit. Unauthorized maintenance can result in fines and the need for retrospective permits. If you see this happening, please report it to the council. Proper maintenance requires specific methods and materials to ensure safety and compliance with regulations.