Collapsed Culvert on Private Land?
A collapsed culvert can restrict water flow, undermine a road or track and cause erosion or flooding around the structure. OddGround helps connect suitable collapsed culvert enquiries with relevant specialists across the UK.
Get Help With a Collapsed CulvertWhat happens when a culvert collapses?
Culverts often sit largely out of sight beneath roads, farm tracks, driveways, fields and embankments. Because of this, deterioration can sometimes progress for a considerable period before the full extent of the problem becomes obvious.
A collapse may affect only one section of a culvert or involve substantial failure of the structure. In either case, the change can reduce the space available for water to pass through.
Water may then begin backing up, overflowing or finding another route through the surrounding ground.
Where the culvert supports a road, track or driveway, loss of material around the structure can also affect the stability of the surface above.
This is why a collapsed culvert is often more than simply a drainage blockage.
A collapse can affect more than the culvert itself
The consequences depend on the location, size and purpose of the culvert, but several related problems can develop.
Restricted Water Flow
Collapsed material can reduce the opening available for water, increasing the risk of water backing up during higher flows.
Flooding
When water cannot pass through normally it may overflow onto surrounding fields, tracks, roads or property.
Road Settlement
Loss of support around a culvert beneath an access route can contribute to sinking, cracking or localised surface failure.
Scour & Erosion
Altered water flow can remove soil and stone from around the culvert, banks, headwalls or embankment.
Water Bypassing the Culvert
Water may begin travelling around or alongside the failed structure instead of following its intended route.
Further Structural Failure
Damage to one section can sometimes place additional pressure on adjoining parts of an older or deteriorating structure.
Common reasons culverts deteriorate or fail
Culverts vary enormously in age, construction and condition. Some are modern pipes while others are old stone or brick structures that may have been carrying water beneath the same route for decades.
Age and deterioration
Materials can deteriorate over time, particularly where a structure has been exposed to continual water flow, movement or previous repairs.
Heavy loading above
Culverts beneath farm tracks, roads and access routes may be subjected to vehicle and machinery loads. Changes in use can also mean an older crossing is carrying loads it was never originally intended to support.
Scour and loss of surrounding material
Flowing water can gradually remove supporting material around a culvert, particularly near entrances, outlets and damaged joints.
Blockages and high flows
Debris, sediment and vegetation can restrict water flow. During periods of heavy rainfall, additional pressure and altered flow patterns may expose existing weaknesses.
Previous alterations
Older culverts may have been extended, repaired or connected to newer drainage at different times, leaving a mixture of materials and construction methods along the same structure.
Collapsed culvert beneath a private road or farm track?
This is one of the situations where a culvert failure can become particularly disruptive.
Look at what's happening above
A dip, crack or soft area in the road surface may indicate that material beneath the access route has moved or been lost.
If the condition of the crossing is uncertain, avoid assuming that the surface remains capable of safely carrying normal loads.
Access can influence the repair
Rural culverts may be located in narrow lanes, steep fields, woodland or remote parts of an estate.
When making an enquiry, tell us if normal plant or larger vehicles would have difficulty reaching the site.
Getting the problem in front of the right specialist
Describe what has happened
Tell us whether the collapse is visible, what the culvert passes beneath and whether water flow or access has been affected.
Take useful photographs
Where it is safe to do so, photographs of the inlet, outlet, surrounding land and road or track above can be particularly useful.
Send reports if you have them
If an engineer, surveyor or other professional has already inspected the culvert, include any report or remedial specification with the enquiry.
What should you include with your enquiry?
About the culvert
- Site postcode or approximate location
- What passes above the culvert
- Stream, ditch or drainage channel involved
- Approximate size if known
- Material if known — pipe, stone, brick or concrete
- What appears to have collapsed
About the problem
- Whether water is still flowing through
- Any flooding or water backing up
- Settlement or damage above the culvert
- Visible erosion or scour
- Whether machinery can easily reach the site
- Existing survey, report or specification
Need help finding a specialist for a collapsed culvert?
Tell us where the culvert is, what has happened and whether water flow or access has been affected. Add photographs and any existing report where available.
Submit a Collapsed Culvert Enquiry