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Wireless monitoring for bridges

Connect your bridge instruments.
Access readings remotely.

Ackcio Beam connects supported instruments to a wireless acquisition network, with Self-Healing Mesh that uses alternative communication paths where available.

  • Supported instrument interfaces
  • Self-Healing Mesh
  • Remote access and configuration
Monitoring installation at Servia High Bridge in Greece
Servia High Bridge, Greece · Explore the deployment

Published deployment evidence

Bridge projects.
Specific measurements.

See how wireless acquisition has been used for crack and strain monitoring in published Ackcio projects.

Crack monitoring installation at Servia High Bridge in Greece
Servia bridge detail and monitoring installation Close view of the monitored bridge detail at Servia

Servia High Bridge · Greece

Read cracks remotely

During rehabilitation of Servia High Bridge, NEOTEK installed six Elastisense displacement sensors across major cracks. Ackcio Analogue Nodes and a gateway enabled remote acquisition and system configuration from 450 km away.

6
displacement sensors
450 km
remote configuration distance

Measurement: crack opening and closing
Pathway: displacement sensors → analogue acquisition → gateway

Read the published case study
Underside of Ogan Bridge in Indonesia
Structural monitoring area beneath Ogan Bridge Installed gateway enclosure at the Ogan project

Ogan Bridge · Indonesia

Follow strain in the bridge

At the 360 m Ogan toll bridge, 64 rebar strain gauges monitored structural response during construction and post-construction testing. Eleven vibrating wire nodes transmitted readings to one gateway every 15 minutes.

64
rebar strain gauges
11
vibrating wire nodes
15 min
reading interval
360 m
bridge length

Measurement: rebar strain
Pathway: vibrating wire strain gauges → vibrating wire nodes → gateway

Read the published case study
Katerina Xystri, NEOTEK
“we can configure the system from 450 km away!”
Katerina Xystri, Sales Director, NEOTEK · Servia High Bridge

Read the project story

From measurement to review

How Ackcio fits your monitoring setup

The instrument output, reading interval, site layout and data destination determine the system configuration.

Ackcio Gateway assembly 02 / GATEWAY

Collect the readings

The gateway receives data from the Beam network. Plan its location, power and backhaul around the bridge and the required workflow.

Explore the Gateway
Ackcio software screens 03 / SOFTWARE

Review and integrate

Manage the network and sensor data through Snape. Send readings to compatible third-party platforms or your own software using supported API or FTP integrations. Confirm the data format, destination and access requirements for your project.

Explore Snape

Work with the instruments you use

Select the node by the instrument’s electrical output: analogue, vibrating wire or a supported digital interface. The instrument category alone does not determine compatibility.

Check output type, excitation, power, channel requirements and reading interval for each model. Ackcio sensors and compatible third-party instruments can form part of the same monitoring plan.

Fit your existing data workflow

Choose where engineers will review the readings: Snape, a compatible monitoring platform or an internal system. Plan the gateway connection and integration around that destination.

Confirm supported interfaces and data formats with the project team before specifying the system.

The wireless differentiator

Self-Healing Mesh

Bridge geometry and site conditions can affect radio links. Ackcio Beam automatically selects communication paths, using alternative routes where available.

This is radio-path resilience. It does not remove the need to maintain instruments, sensor cables or power supplies.

How Ackcio Mesh works
Open-pit example showing a blocked red radio link and alternative green routes between sensor nodes and the gateway.
Open-pit example: the red link is blocked; green links show alternative radio paths. Available routes depend on network design and site conditions.

What can you monitor?

Six areas. A connected view.

Explore the bridge from the surrounding environment to the quality of the data itself. Each area combines measurable parameters, typical instruments and a route to the right products.

Six bridge monitoring areas: river, foundations, deck, structural members, joints and data health
Bridge monitoring concept: River, scour & weather. The adjacent HTML explains each measurement.
01 / River, scour & weather · Concept illustration

Monitoring area 01

River, scour & weather

How are river conditions and weather changing around the bridge?

Connect changing site conditions with the bridge’s response. Specify environmental measurements separately from structural measurements.

Water level
Water-level instruments record changes around the bridge piers.
Wind and temperature
Anemometers, weather stations and temperature sensors provide environmental context.
Scour assessment
Use project-specific scour instrumentation or surveys. Structural tilt can provide additional context, but is not a direct scour measurement.

Relevant Ackcio products

Analogue Nodes Digital Node
Measurement considerations

Water-level and weather instruments shown are supported instrument categories; they are not presented as Ackcio-manufactured products.

Bridge monitoring concept: Piers, abutments & approaches. The adjacent HTML explains each measurement.
02 / Piers, abutments & approaches · Concept illustration

Monitoring area 02

Piers, abutments & approaches

Are the supports tilting, or is the surrounding ground displacing?

Review changes in structural orientation and the displacement of adjacent ground using measurements suited to each location.

Tilt and rotation
Tiltmeters measure angular change on piers and abutments.
Settlement and heave
Suitable settlement instrumentation measures vertical displacement at the approach or foundation.
Subsurface displacement
An appropriately installed in-place array can help characterise the displacement profile around the asset.

Relevant Ackcio products

Mesh Tiltmeter GeoArray
Measurement considerations

A tiltmeter measures angle; it does not directly measure settlement. Array installation and orientation determine the displacement being measured.

Bridge monitoring concept: Deck deflection & vibration. The adjacent HTML explains each measurement.
03 / Deck deflection & vibration · Concept illustration

Monitoring area 03

Deck deflection & vibration

How is the deck responding to traffic and changing loads?

Understand how the deck responds to traffic, project activities and changes in loading. Define the response you need before selecting the acquisition system.

Deck deflection
Suitable displacement instruments track changes at specified points and reference locations.
Vibration
Appropriate vibration sensors and acquisition equipment capture the required dynamic response.
Temperature context
Temperature measurements help engineers interpret changes alongside environmental conditions.

Relevant Ackcio products

Discuss measurement requirements
Measurement considerations

Dynamic measurements need a sampling rate, bandwidth and synchronisation plan appropriate to the engineering question.

Bridge monitoring concept: Strain in girders, cables & stays. The adjacent HTML explains each measurement.
04 / Strain in girders, cables & stays · Concept illustration

Monitoring area 04

Strain in girders, cables & stays

How are selected structural members responding to load?

Measure local structural response at selected members. Interpret readings using the bridge design, installation details and the engineering model.

Strain in steel or concrete
Surface, embedment or rebar strain gauges measure strain at the installed location.
Load at selected connections
Suitable load cells may be specified for the particular load path and installation.
Thermal response
Temperature readings support the interpretation of strain and load changes.
Measurement considerations

Strain is not a direct measure of stress without the appropriate material assumptions and engineering interpretation.

Bridge monitoring concept: Bearings, joints & cracks. The adjacent HTML explains each measurement.
05 / Bearings, joints & cracks · Concept illustration

Monitoring area 05

Bearings, joints & cracks

Are cracks and joints opening or closing, and are bearings displacing?

Follow opening, closing and relative displacement at selected details, including during repairs or strengthening works.

Crack width
Crackmeters measure opening and closing across an installed gauge length.
Joint opening and closing
Suitable joint or displacement sensors measure relative change at the selected joint.
Bearing displacement
Displacement instruments record relative displacement at specified bearing locations.
Measurement considerations

Choose the node from the actual instrument output and electrical requirements. The sensor model’s output determines the acquisition interface.

Bridge monitoring concept: Data & network health. The adjacent HTML explains each measurement.
06 / Data & network health · Concept illustration

Monitoring area 06

Data & network health

Does an unusual reading reflect structural change or a measurement issue?

A measurement is more useful when the team can also review how it was acquired. Keep the instrument record and the communication network in view.

Device and network status
Review available battery and communication status information.
Missing or unusual readings
Investigate gaps and unexpected changes alongside site events and instrument checks.
Self-Healing Mesh
The Beam network automatically selects communication paths as radio conditions change, using alternative paths where available.

Relevant Ackcio products

Self-Healing Mesh Snape
Measurement considerations

Radio rerouting does not repair a cut sensor cable or a failed instrument. Physical faults still need inspection and maintenance.

Between inspections

The bridge keeps responding.
Your evidence should keep building.

Inspections provide essential observations. Instrument readings add a record of selected parameters between visits, helping engineers investigate changes in context.

Illustrative bridge scenario: Internal deterioration

Internal deterioration

Changes within cables and structural members may need targeted instrumentation.

Illustrative bridge scenario: Corrosion and ageing

Corrosion and ageing

Measurements add context when reviewing an ageing asset’s condition.

Illustrative bridge scenario: Changing loads

Changing loads

Understand the response to traffic and other project-specific loading conditions.

Illustrative bridge scenario: Construction and repairs

Construction and repairs

Track selected parameters as construction, strengthening or rehabilitation progresses.

Illustrative bridge scenarios.

Periodic observations

Visits and inspections record conditions at particular times. Access arrangements can make additional readings difficult to obtain.

A configured measurement record

Wireless acquisition brings readings from suitable instruments to a gateway at the project’s configured intervals. Engineers can review trends alongside inspections and site events.

Start with your asset

Different bridges.
A focused monitoring plan.

Choose the parameters that answer a defined engineering question. The same layout does not fit every bridge.

River bridges

Coordinate environmental observations with foundation and structural measurements.

Viaducts

Select pier tilt and displacement measurements around access constraints.

Cable-stayed bridges

Define the strain or load question for the relevant members and connections.

Rail bridges

Plan measurements around the asset, operational windows and access requirements.

Rehabilitation

Track cracks and relative displacement alongside repair activities.

Ageing structures

Build a record to support inspections and engineering assessment.

01

Define the question

Identify the asset, engineering concern, required parameters and the people responsible for reviewing the data.

02

Plan the deployment

Select the instruments, acquisition method and network layout. Agree access, power, installation and commissioning requirements with the project team.

03

Review, then extend

Validate readings and the response workflow before extending the system. Use actual project costs and access requirements to assess the business case.

Build a project-specific business case

Consider site visits, access arrangements, installation, connectivity and ongoing maintenance. Savings depend on the actual monitoring scope.

Keep engineering decisions with the team

Monitoring supports assessment. Inspection, engineering interpretation and the agreed action plan remain essential.

Common questions

Before you specify a system

Can we connect instruments we already use?

Potentially. Match each sensor’s output, excitation, electrical and sampling requirements to the supported acquisition interface. The instrument name alone does not establish compatibility.

Does wireless monitoring remove every cable?

No. Some instruments connect to a local node by cable. In a Beam deployment, Mesh carries data wirelessly between nodes and the gateway. Local sensor connections still require protection and maintenance.

Does every measurement use the same sampling interval?

No. The monitoring objective and instrument determine the interval and acquisition requirements. Dynamic vibration measurements require separate technical validation.

Can monitoring replace bridge inspections?

Instrument readings complement inspections and engineering assessment. The bridge owner and engineering team define how readings inform the asset’s response plan.

Ogan Bridge in Indonesia

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