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Explosive ordnance surveying in the Braunschweig administrative district
If you plan construction at several sites in the Braunschweig administrative district, ordnance records must be reviewed for every property. FONTANA-EOD coordinates the commissioned investigations with you. Dates and records can be organised jointly while retaining local responsibilities and the limitations of each investigation result.
Identify the municipality, property and construction phase.
Coordinate dates and local requirements.
Identify the areas and depths investigated.
Assess the construction project
Organise investigations jointly and document each site separately
A construction programme may involve several sites and local information procedures. For projects in the Braunschweig administrative district, we coordinate commissioned investigations against individual areas and interventions. Results, outstanding tasks and responsible contacts remain assigned clearly to each site.
Documented location references
Reference projects in the Braunschweig administrative district
Select a project location on the map or in the location list. The associated entries lead to the protected reference overview.
The points indicate locations associated with documented references, not precise ordnance find or site coordinates. Several entries may belong to one project. References without a confirmed location assignment are available in the complete reference overview.
Map data: © BKG (2026), VG250 / GN250, Data licence Germany – attribution 2.0. Area outline assembled from official district areas and projected. Selection and project assignment: FONTANA-EOD.
Project references
Selected project examples
Wolfsburg / Weyhausen – borehole magnetometry
Ordnance surveying – A39 comprehensive renewal Mittellandkanal–Weyhausen (BA2/BA3) Wolfsburg / Weyhausen
Service period: 2024-04
Service areas:Downhole magnetometry / deep-ground survey
Project site
Connect the site with the specific construction task
Distinguish the administrative district from local ordnance responsibilities
For construction programmes in the Braunschweig administrative district, record site details and local responsibilities for each project. Identify the ordnance information procedure for the actual property. The cities of Braunschweig and Wolfsburg designate different responsible offices. Assign contacts and existing findings individually for further sites too. Municipal decisions and specialist reports remain tied to their respective site and documented remit.
The administrative district lies in southeastern Lower Saxony, extending from the southern heath through the Harz foothills and Harz to southern Lower Saxony. Identify individual project areas within this region for programmes spanning several locations. Other sites, for example in the Hannover Region or Celle district, belong to other ArL administrative districts and are assigned separately. Local ordnance responsibilities depend on the actual property and responsible municipality. The historical aerial photograph analysis relates to the existing evidence and proposed intervention.
Information on explosive ordnance surveying in Salzgitter, Göttingen, Peine and Wolfenbüttel supports preparation of your project enquiry. Documents and planned ground disturbance on the respective property are decisive.
Local context
Keep Braunschweig and Wolfsburg information separate
Comparing municipal information procedures
For a joint construction programme in Braunschweig and Wolfsburg, municipal enquiries go to different offices: in Braunschweig, the Environment Department answers questions about suspected ordnance. For construction projects in Wolfsburg, the city identifies the Public Order Office, General Hazard Prevention. Assign each enquiry to the actual property and responsible office there.
Limitations of the Braunschweig map
Braunschweig’s ordnance contamination map brings together findings from different interpretation periods and quality levels and is updated. The city explicitly states that the map does not guarantee the absence of explosive ordnance. Record the area and retrieval date for a map extract; clarify the additional information or investigations needed for the proposed intervention.
The City of Braunschweig describes Second World War air raids and historical research into air raids and military installations as part of its information holdings. For other sites, use the historical evidence available for each. Compare files and aerial photographs with the specific area, subsequent changes of use and today’s groundworks.
Keep other sites separate
For further sites in the administrative district, identify the local information procedure separately. The public KBD and commercial specialist contractors each have defined tasks. Keep information, outstanding questions and investigation results separate for each site even under a joint commission. Information about an area in Braunschweig cannot be transferred to a property in Wolfsburg.
Requirements
Clarify technical requirements and responsibilities within the project
Relate requirements to the specialist task
For the commissioned activities, the applicable technical requirements and questions of permits, competence and responsibility are clarified. The services actually planned are decisive. Required permits and certificates of competence are assigned to the activities described and the responsible persons.
Link occupational safety to the construction sequence
Risk assessment, working areas and communication must match the proposed activities. Explosive ordnance specialist works are coordinated with the other construction works. Operational organisation, site and traffic safety, and other specialist technical inspections retain their own responsible parties. Joint coordination relates specialist works and responsible participants to the construction sections concerned.
Use technical findings correctly
A measurement anomaly first requires specialist assessment; its appearance alone does not identify it as explosive ordnance. If an object is genuinely suspected to be ordnance, the prescribed reporting procedures and the measures set by the responsible authorities apply. Investigation reports specify the work completed and its limitations, so that results are not extended to unexamined areas or later design changes.
The Braunschweig Office for Regional Development describes its administrative district. The responsibilities for ordnance assessment are explained by the LGLN. The City of Braunschweig provides information on its ordnance map and enquiry procedures; the City of Wolfsburg identifies its local contact for construction projects. Assign each piece of information to the project area affected.
The principles of clearance planning connect the specialist task with construction planning. The specialist geophysical principles help assess methods and measurement conditions. The BFR KMR documentation requirements relate results to the areas, depths and conditions actually covered.
The defined remit of the BFR KMR guidelines concerns federal projects. Their technical principles are compared with the locally applicable requirements and responsibilities for the project.
For work in Germany, the permit, certificate of competence and responsibilities for the specific activity are assessed under the Explosives Act and the First Ordinance to the Explosives Act. The risk assessment under Section 5 of the Occupational Safety and Health Act relates to the planned activities. The DGUV Information 201-027 covers preventive investigation and clearance of conventional explosive ordnance and defines its scope. Its references to DGUV Rule 113-003 concern particular activities involving explosives; they are not applied indiscriminately to every construction-site investigation.
§ 7 SprengG concerns the commercial permit for activities requiring authorisation, and § 20 SprengG the certificate of competence of responsible persons. § 1b SprengG governs which provisions apply when searching for munitions that have been found. The commission identifies the planned activities and the persons responsible for them.
Working together
Distinguish the tasks of client, designers and specialist contractor
Client and operator
The client describes the project and provides the available project records. The operator adds requirements for use, access and timing. A coordinating contact brings the parties together; individual tasks remain assigned to the named parties. Before commissioning, it is clearly recorded what information is missing, who will obtain it and what decision the result is intended to prepare.
Planning and construction management
The specialist designers describe areas, depths, construction methods and changes. Site management coordinates the planned sequence with the construction contractors and agreed specialist works. Results are assigned to the respective intervention. A technical plan change is communicated early enough for its effect on the survey task to be assessed before construction. Organisational construction stage boundaries remain distinguishable from technical survey boundaries.
Specialist company and competent bodies
The private explosive ordnance specialist contractor performs the agreed investigation and documentation work. Official requirements and decisions are clarified with the respective responsible bodies. The records needed for a specific procedure depend on the location and project. The technical report documents the specialist work carried out and its area, depth and limits of conclusions. The responsible bodies make official decisions concerning subsequent groundworks.
Agree municipal requirements with the responsible municipality for each site. The public explosive ordnance disposal service supports Lower Saxony’s municipalities within its remit. For Braunschweig and Wolfsburg, use the information offices identified by each city; other sites receive their own local contact.
Investigation task
Which specialist task comes next?
Establish the initial conditions for each area
Compare information, aerial photograph analyses and technical reports separately with each intervention. Keep differing recommendations and progress identifiable. Do not transfer a municipal map’s findings to another property. Record for each site the question already answered, records still missing and technical clarification needed before groundworks.
Assess historical documentsCombine joint procurement with site-specific methods
A joint commission may contain several clearly described tasks. Technical work nevertheless accounts for the conditions and objectives of each area. Access, installations and required depths may call for different approaches. The service description therefore identifies common elements alongside differences, necessary preparatory works and the documentation expected for subsequent construction at each site.
Compare investigation methodsProject types
Plan a joint construction programme with differing initial conditions
Several properties belonging to one client
Record each property with its proposed works and existing records. Common ownership does not establish uniform ground conditions. Technical reports may already exist for some sites while others initially lack information and appendices. The project overview reflects these differences. Dates can then be coordinated without concealing investigation needs and outstanding questions for individual areas.
Use a unique identifier for each site that appears in the commission and all drawings. Include the plot, planned interventions and results needed at each stage. Describe shared services separately from site-specific items. Project management can then identify prerequisites already met and tasks still needing records or specialist works.
Document findings and their limitations
A route through several local areas
Identify the geographical sections of a linear project unambiguously on the site plan. Include their depths, excavations and connection points. Assign contacts and existing investigation results to each section. Consider areas at transitions together so no unevidenced gap remains. An administrative boundary identifies local responsibilities but does not, alone, establish anything about explosive ordnance.
Assign connection pits, crossings and temporary working areas to each route section. The drawing shows the boundaries of individual investigation commissions and the planned connection route. If a connection moves, compare its new position with existing results before work starts. Record contacts and responses needed for the transition between two local areas too.
Specialist services and investigation tasksA construction programme with recurring installation types
Similar buildings or technical installations may present different measurement conditions at different sites. Record installations, ground conditions, access and existing reports for each. A shared service description can organise recurring tasks but must identify site-specific differences. Check the method suitable for one area against the conditions at the other areas and define it appropriately.
For recurring structures, identify actual differences too, such as different foundation depths, existing utility lines or paved areas. The technical planners can combine common services and assign additional requirements to individual sites. Results documentation remains tied to the respective works. A later change of designer or contractor is then traceable through the documented location and drawing references.
Specialist services and investigation tasksPreparation
Prepare the scope and commission together
Establish what needs to be known before commissioning the work
First establish which decision the commission needs to support. Is the task an initial assessment of existing documents, an investigation of a specific area or examination of an anomaly that has already been assessed? These tasks require different evidence. A general wish for safety does not define an investigation that can be carried out. The enquiry therefore specifies the groundworks, location, depth and available findings. Suitable specialist work and the required reporting are then agreed on that basis.
For a construction programme, project management also identifies shared and local contacts. The initial overview shows which sites and interventions are to be addressed first. The specialist contractor and designers use this to clarify records and specialist works needed next. Assign outstanding prerequisites to the affected site and a responsible individual.
Define the specialist taskCoordinate preparatory work with the investigation
Required access and survey conditions are clarified before the site visit. This may include keeping areas clear, obtaining service information and coordinating with other trades. The method and site determine which preparations are actually needed. Changes to the surface or additional groundworks are not undertaken unilaterally simply to prepare for a survey. Their sequence is agreed with the specialist designers and responsible parties.
Coordinate preparation for each area against its actual construction stage. Identify access routes to be kept clear, necessary utility information and local restrictions in the programme. Where preparatory groundworks are needed, clarify their own ordnance implications before execution. Relate a joint attendance date to the differing prerequisites of individual sites.
Clarify preparatory work in the programmeAgree a clear scope and schedule
A reliable process distinguishes work already technically clarified from prerequisites still unresolved. If an area will only be partly accessible, this must be taken into account when commissioning the work. Handover and assessment of results also need time in the construction programme. Specific coordination connects the described scope with access, records, execution conditions and the date by which a decision is needed.
Discuss the scope and scheduleTasks at the site
Which information belongs to which site?
01
Several construction properties
For geographically separate properties, record position, intervention and investigation status individually. A report for one site cannot be transferred to another merely because they share an owner. Record progress for each property in the project overview and retain the full reports as appendices.
02
Routes crossing municipal boundaries
If a planned utility or other linear project crosses several municipalities, assign sections and their interventions clearly. Check local responsibilities for each section. A municipal boundary provides no indication of explosive ordnance contamination.
03
Joint construction programmes
Dates and records can be organised jointly where a programme covers several buildings or installations. Investigation requirements nevertheless remain site-specific. In shared forms too, record differing initial conditions and missing information for each site.
04
Connections between construction phases
At transitions, identify where work on one section ends and the next begins. Check proposed connections particularly where adjoining areas were investigated under separate commissions. Plot the areas covered by results on a common site plan to identify outstanding transitions.
Project documents
Documents that establish the next step
Link the site overview to individual records
Use unambiguous site identifiers throughout maps, commissions and reports. The overview identifies available findings and outstanding questions. Complete information and specialist reports remain assigned to the respective site. For every site, bring together the commissioned measurement data, survey results and interpretation of findings with the full report and drawings. After clearance works, assign the clearance record, including scope, results and limitations, to the area actually worked. Document changes to one project component so they do not silently alter other records or indiscriminately replace their conclusions.
Base joint scheduling on prerequisites
A programme shows when works are intended to take place. Also identify the records, access and technical results needed beforehand. Assign these tasks to specific contacts. Completion at one site establishes nothing about the next; coordinate joint procedures against the actual status of each area.
Construction sequence
Coordinate investigation and construction sections
Before starting a joint construction programme
Assemble the sites and first proposed ground interventions. Assign the necessary information, records and technical decisions to these steps. Define shared organisational procedures while keeping local contacts and requirements identifiable. An investigation plan describes individual tasks and handovers. Procurement can then rest on a traceable overview rather than a general assumption for the whole programme.
When progress differs between sites
One site may already have a complete results report while another still needs records or suitable access. Keep these statuses explicitly separate. Compare the next ground intervention with its corresponding results. Record schedule changes and additional areas individually. A joint progress report should identify these differences so contractors do not extend a conclusion to a site still outstanding.
Method selection
Select methods according to the task and survey conditions
Historical records and aerial photographs
Historical aerial photograph assessment and other old records help place the basis for suspicion in its spatial context. The available images, their evidential value and the limits of the area considered matter. The absence of an identifiable indication must be distinguished from a technically surveyed ground area. The assessment is considered together with the planned intervention and other available findings. It can support the choice of a survey, but is not a measurement of the present-day subsurface or confirmation for all future works.
Understand aerial photograph assessmentMagnetometric survey
Magnetometric methods detect magnetic anomalies. Whether they can address the specific survey task depends, among other things, on the expected objects, ground conditions, interference and required survey area. Fences, utilities or existing structures may affect interpretation. A measurement signal is therefore not described as ordnance solely because of its strength. Method, interpretation and any further investigation are planned as a connected specialist task.
Understand the scope of magnetometryElectromagnetic methods
Electromagnetic investigations can be suitable for particular metallic targets and site conditions. Their suitability must be explained for the task, rather than inferred simply from the availability of equipment. Interfering installations, accessible areas and the findings required must also be considered. Results are documented with their location and survey conditions. The specialist assessment determines whether a supplementary method is needed; this remains a project-specific decision.
Understand electromagnetic surveyingGround-penetrating radar
Under suitable conditions, ground-penetrating radar can provide information about subsurface structures and reflections. Ground conditions, moisture, installations and the particular survey task affect interpretability. An anomaly is not automatically ordnance, and an area with no apparent anomalies is not general evidence for arbitrary depths. The specialist interpretation and its limits are documented with the instruction. A survey for another purpose is not adopted without checking as ordnance evidence.
GPR and limitationsDeep-ground and downhole surveys
For deeper groundworks, it may be necessary to establish whether a surface investigation can provide the required findings or another approach is needed. Preparation includes the location, depth, borehole layout and existing services. Creating access for the investigation must also be properly planned by specialists. A general depth figure or standard grid cannot replace that work. Findings remain limited to the areas actually investigated and the method used.
Prepare deep interventionsSurvey during construction
If a necessary preliminary investigation cannot be completed in full, assess whether a technically planned approach alongside construction is suitable. This includes the agreed investigation, interpretation and communication of findings within the proposed working sequence. Necessary surveying remains part of the agreed approach; visual inspection supplements it. Site management needs a clear description of when specialist works occur, how new findings are handled and which areas remain outstanding. For ordnance clearance during construction, the DGUV FAQs explain the necessary technical investigation works. Visual observation alone does not meet the state of the art for this specialist task.
Agree the approach during constructionTechnical assessment
Determine investigation needs for every site
Organise reports by area and drawing revision
Existing aerial photographic assessments and technical reports are assembled by site, reference area and drawing revision. The overview distinguishes areas with only background evidence from those with technical investigation results.
Check records for completeness, available image dates and the areas actually considered. Where historical evidence is incomplete, carry out the necessary research and wartime aerial photograph analysis. Compare later excavation, fill or construction over the ground with today’s intervention. Record existing findings and the conclusions still needed for each site and include them in the next investigation commission.
Select measurement methods for each area
The choice of surveying depends on the task and conditions in each area. An approach suitable at one site is not automatically suitable at all others. Check suitability for every area even under a joint commission.
Expected target objects, soil structure, interference and required investigation depth determine method selection. Account for existing utility lines, reinforcement and other installations with their known positions. For deeper interventions, clarify whether suitable findings can be obtained from the surface or whether a borehole survey, for example, is needed. Then describe positions, depths, access and prerequisites for creating investigation access on a site-specific basis.
Assign responses to each construction phase
The project process should record which response applies to which section. Distinguish official responses, client decisions and investigation results. Joint project organisation changes neither official powers nor the scope of individual decisions.
Derive further work from each result and the findings still needed. Include necessary clearance objectives, working areas and coordination with earthworks in the service description and construction sequence. When explosive ordnance is identified, coordinate recovery and further measures with the responsible authorities within Lower Saxony’s allocation of responsibilities. The ordnance survey report and clearance record document specialist works actually performed with their areas, depths and limitations.
Next steps
Organise investigations at several sites
Identify sites and next interventions at initial contact
Record the municipalities, properties and proposed works. Identify each project component unambiguously on the site plan. The list is a working overview; it replaces neither full investigation reports nor necessary coordination at each site. For the first discussion, provide project addresses, plots and the decision needed first. A common contact maintains the site list and records local responsibilities traceably.
Check documents and complete the historical evidence
Assign information, drawing revisions and existing findings to the correct area. Identify missing appendices where needed. List outstanding questions for each site even if another section is complete. Compare complete ordnance records with current intervention drawings. Where historical evidence is incomplete, carry out necessary research and aerial photograph analysis. Findings and outstanding questions inform site-specific investigation requirements.
Define methods and local coordination
Define who leads local coordination and who passes changes to the parties involved. Coordinate joint dates with the investigation status of each area. Completion of one site establishes nothing about the next. Select methods against the investigation objective, target objects, soil structure, interference and required depth. Identify investigation areas and necessary preparatory works for each site. The designers coordinate specialist works with local requirements and the proposed construction sequence.
Carry out investigations and assess results
Where further work is needed, carry out the commissioned surveys or technically planned accompanying works. The specialist contractor interprets measurement data and findings in relation to methods and investigation conditions. Keep inaccessible areas and those with restricted interpretability identifiable by position. An actual suspicious find requires the affected works to stop and immediate notification of the responsible authorities.
Document and hand over reports for each site
Documentation identifies the areas and depths covered, methods, results and limitations. Hand over complete reports and drawings together to the agreed recipients. A project overview refers to these individual records and shows the evidence available for the next ground intervention.
Compare the next construction decision with the available results
Before subsequent groundworks, compare the intervention with the corresponding result. Include connections between sections. Following a design change, check which reports still cover the new intervention and where further clarification is needed. For outstanding tasks, record the next step required and responsible contact. Include new areas, depths or construction methods in coordination before work starts. Give decisions and results handovers unambiguous site and drawing references.
Documentation
Hand over the project overview with individual reports
Findings and their scope
The project overview can clearly summarise progress across several areas. Include the complete reports. For each intervention, these must identify the commission, methods, investigated area and depth, and limitations. The word “investigated” alone does not describe that scope.
Project responsibilities
The planning and documentation principles of the BFR Ordnance Clearance guidelines apply directly within their federal scope. For other projects they offer technical guidance; local requirements must also be considered. A private investigation and a decision by the responsible authority remain separate procedures even in a project spanning municipalities.
Working approach
How FONTANA-EOD works
Document the agreed specialist service clearly
We assess the planned groundworks against the available documents and their design revision. Before attending site, we agree with you what needs to be investigated, which areas are accessible and what findings are required. If the design or site conditions change, we check whether the agreed scope remains appropriate. The report states what was actually investigated and the limits of the findings. This allows designers and site management to see which findings they can use and where questions remain.
Discuss the investigation taskThe task before the equipment
We first establish the investigation objective: which question must it answer? We then select a technically suitable method. The availability of a particular device or experience on a similar neighbouring site is not enough to justify the choice of method on its own.
Keep limitations visible
Inaccessible areas and limited findings are identified. They are shown separately in the report and overview plan. Planners and site management can then decide specifically which areas still need work and when a suitable investigation will become possible.
Clarify changes before intervening in the ground
A new location, additional depth or different construction methods are compared with the existing results. Changes are passed on with dates and clear plan references. Feedback is provided before the affected work so that an unresolved question can be incorporated into the workflow.
Hand over the report and plan together
The technical conclusion remains connected to its location references and appendices. A brief summary helps orientation but does not replace the documented survey scope. This basis is retained even if site management or contractors change.
Understand the results
Use technical statements for the next decision
Present shared progress traceably
An overview can identify for each project component the information available, whether a technical investigation has taken place and outstanding tasks. Every entry refers to the complete records. General labels such as complete are insufficient without area and task references. Specific interventions, reports and limitations must remain readable together for the next construction decision.
Understand investigation reports and their limitationsUse local responses and specialist reports appropriately
An official response, a client decision and an investigation result serve different purposes. Assign these documents to the appropriate site and work section. Project coordination brings the discussions together; official decisions remain assigned to the responsible authorities. Technical documentation remains tied to the areas and questions actually investigated and is compared with the current design.
Understand the service scopeDesign and findings
Documents for the next construction decision
Historical evidence and the current design
Aerial photograph interpretation is related to the actual groundworks. Its purpose and geographical scope remain distinct from a technical investigation of the ground as it is today.
Understand aerial photograph assessmentSpecialist reports for site management
The findings, their locations and limitations are handed over together. This makes clear to those carrying out the work which area has been investigated and which task remains outstanding.
Assess investigation reports
Further technical topics
Further technical information for your project
Determine the specialist service from the planned groundworks
Historical assessment, technical investigation and subsequent work answer different questions. In your enquiry, describe the proposed groundworks and the findings needed for the next intervention.
Compare servicesCoordinate the project sequence with everyone involved
Preparation connects the commission, site work and handover of findings. Changes to the project can then be incorporated into technical coordination in good time.
Process and documentationQuestions from planning
Questions about projects in the Braunschweig administrative district
Is the Office for Regional Development the responsible ordnance authority?
Lower Saxony’s allocation of responsibilities applies to explosive ordnance tasks. Use the project area to identify the municipality responsible for local hazard prevention. Distinguish this from the KBD’s public duties and the commissioned services of a specialist contractor. Local hazard prevention is assigned to the responsible municipality; the ArL supports regional development.
Can one commission cover several municipalities?
Yes, if each task is clearly described. Areas, interventions and respective conditions must still be assigned unambiguously. A joint commission creates neither a shared official responsibility nor an extension of existing investigation findings. Before the proposed groundworks, coordinate investigation needs with the specialist contractor and municipal requirements with each responsible municipality. The KBD supports the municipality within its remit.
Does a report also cover other properties belonging to the same owner?
Only insofar as those properties or sections actually fall within the documented investigation scope. Common ownership is insufficient. For additional sites, compare existing findings and proposed ground interventions separately.
How are transitions between two commissions checked?
Consider the respective areas covered by results alongside the new design. It must be clear whether the proposed transition is covered geographically and to the required depth. Clarify outstanding connection areas separately. Two reports for adjoining areas do not automatically establish that the transition has also been investigated.
What should happen if a suspicious object is found at one of the sites?
Stop the affected work and leave the object untouched. Move away, keep others away and, in Germany, notify the police immediately on 110. Follow their instructions; central project coordination does not replace immediate reporting of a find.
Can similar installations everywhere be investigated using the same method?
Check suitability against the investigation objective, required depth and conditions in each area. Similar installation types may have different ground conditions, installations and access. A joint contract can reflect these differences but does not replace technical assessment of individual sites.
How can missing records remain identifiable across many sites?
Maintain a site overview with unambiguous identifiers and references to the complete records. Record missing appendices, outstanding questions and responsible contacts for each site. Date changes so parties can trace the current status of their task. The process first reviews records, plans and carries out necessary specialist works, and assesses results. Each result includes the complete reports and drawings for the subsequent construction decision.
What affects the work involved in a joint construction programme?
Alongside areas, depths and methods, differing initial conditions, access and timing dependencies are decisive. Jointly organised works may simplify coordination while local requirements still need separate consideration. A complete site list with the results needed enables a traceable service description.
Project enquiry
Your sites in the Braunschweig administrative district
Identify sites and individual tasks separately
Send a site list with municipality, property, site plan and proposed groundworks. Include depths and existing information or specialist reports with appendices. Identify differing progress, missing information and geographical transitions between individual tasks. If an area with suspected ordnance has been designated, include its boundary and accompanying records. State the technical findings needed for the next intervention.
Identify shared procedures and local contacts
Provide the proposed sequence, results needed and central and local contacts. Identify access restrictions and possible design changes for each site. Joint dates can then be coordinated with the technical prerequisites of each project.
For each project component, record document revisions, official conditions and maximum intervention depths with their elevation datum. Submit dated as-built and utility drawings. The project overview identifies handovers needed, while individual records document technical findings and their limitations. This keeps central coordination and local tasks traceable for subsequent trades.
Projects in the city of Braunschweig
Projects in the city of BraunschweigProjects in Wolfsburg
Projects in WolfsburgPlace Lower Saxony in context
Place Lower Saxony in contextPut further project regions in context
Put further project regions in contextCoordinate technical services for the sites
Coordinate technical services for the sitesPrepare the project sequence and evidence
Prepare the project sequence and evidence
Have your project assessed
Whether historical aerial photograph analysis, explosive ordnance surveying, surface surveying using GPR, magnetometry or TDEM, deep-ground surveys, downhole surveys, excavation supervision, area clearance or ordnance recovery is needed depends on the location, ground disturbance, depth, ground and existing documents. An early ordnance assessment provides clarity for tendering, programming, occupational safety and construction.
FONTANA-EOD combines its Section 7 SprengG licence, specialists holding Section 20 SprengG certificates of competence, suitable survey and clearance methods, and traceable documentation. Send the site plan, depth of ground disturbance, construction phase and existing documents for an initial technical assessment.
