Project pathway
The quickest route to the right decision.
Explosive ordnance surveying in Rosenheim
For project owners, designers and site managers in Rosenheim, FONTANA-EOD relates existing aerial photograph reports to the current construction area and proposed ground disturbance depths. Observations in an image are considered together with the report's overall assessment. Send reports, maps and later investigation results with your current plan so specialist services still needed can be agreed before ground works.
Read the complete specialist assessment.
Place indications in their spatial context.
Clarify outstanding questions before earthworks.
Assess the construction project
How is an aerial photograph conclusion used for a Rosenheim project?
Read the complete report, including assessment of the surroundings and its conclusions. A single sentence about wartime impacts not visible in an image does not describe the entire result. For your own construction task, relate the property, ground disturbance depths and other existing investigations to the assessment. This identifies the need still to resolve.
Project site
Connect the site with the specific construction task
Use Rosenheim's planning documents with their dates and spatial scope
The available version of the Hainzenmühlstraße Ost explanatory statement dates from November 2021 and contains a broader assessment despite individual aerial photograph observations without adverse findings. For present-day projects, check later results and your own ground works. The city planning department also provides inspection of older legally binding plans unavailable online.
Rosenheim is an independent city in the Upper Bavaria administrative district in the Free State of Bavaria. State the address, cadastral district, property and construction section for the project. Local hazard response generally lies with the municipality as public safety authority; actual finds must be reported to the police immediately. The state explosive ordnance disposal service supports authorities where legacy ordnance that has been found presents specific hazards. The München disposal unit is responsible for Rosenheim. Project-specific preliminary investigation and necessary private specialist services are coordinated with the project owner and responsible parties. For projects in another municipality, consider its local responsibility.
Local context
Rosenheim's air-war history and local investigation status
Locate the station and historical attacks
The Rosenheim City Archive describes the air raids of 1944 and 1945. The first raid on 20 October 1944 targeted the station and railway facilities. The transport junction between the Munich–Salzburg and Munich–Innsbruck routes and the Klepper works are among the historical circumstances described there. The heaviest attack on the station took place on 18 April 1945. For a present-day project, relate these documented events to the precise construction area, relevant aerial photographs and available files. Include documented later demolition, alterations or ground changes in the local assessment. The specialist assessment uses these to determine the question still unresolved for the proposed ground disturbance.
Read the complete assessment for Hainzenmühlstraße
The explanatory statement for land-use plan 191, “Hainzenmühlstraße Ost”, dated 4 November 2021, summarises a report by MuN Ortung GmbH from March 2020. No wartime impacts were recognisable on the property in the images examined. The assessment nevertheless also considered indications from the surroundings and possible deposits of munitions in a former military position.
Compare the historical assessment with your own design
Further investigation therefore remained necessary for the planning at that time. The document belongs to renewed public consultation and is not a current final report for present-day construction works. Anyone using a report should read its overall assessment and spatial scope. The shortened statement that no impacts are visible on the site does not by itself convey the complete result. The explanatory statement also lists an explosive ordnance investigation by HRS dated 26 February 2021. On page 29, it describes suspect locations where recovery was still outstanding at the time and further work within the permit procedure. For present-day works, compare the associated reports and subsequent evidence with the actual working area.
Requirements
Clarify technical requirements and responsibilities within the project
Relate requirements to the specialist task
For the commissioned activities, the relevant technical requirements and questions of permits, competence certification and responsibility are clarified. The actual planned service scope is decisive. A general company designation does not replace checking that the tasks and interfaces are described appropriately for the specific project.
Link occupational safety to the construction sequence
Risk assessment, work areas and communication must suit the proposed activities. Ordnance specialist works are coordinated with the other construction activities. Operational organisation, traffic safety and other specialist technical inspections retain their own responsible parties. Joint coordination brings the information together without equating the different tasks.
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 Rosenheim explanatory statement for Hainzenmühlstraße Ost dated 4 November 2021 relates the 2020 aerial photograph analysis to the further investigation needed at the time. Obtain its appendices and the later explosive ordnance investigation listed there separately for the project file. Through the city's overview of legally binding land-use plans, available planning documents and inspection of older plans can be assigned to the property.
The BFR KMR explain principles of clearance planning, geophysical investigations and documentation of results. The DGUV answers questions about explosive ordnance clearance. The Bavarian notice dated 13 August 2026 sets out hazard response, responsibility for properties and the tasks of the state explosive ordnance disposal service.
The BFR KMR are used as technical guidance; locally applicable requirements and responsibilities must be clarified separately.
Permits, competence and responsibility for the specific activity are considered 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.
Working together
Distinguish the tasks of client, designers and specialist contractor
Client and operator
The project owner describes the proposed work and provides the available project documents. The operator adds requirements for use, access and timing. A coordinating contact makes cooperation easier but does not automatically take on every other party's duties. Before commissioning, record clearly which information is missing, who will obtain it and which decision the result is intended to support.
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 carries out the agreed investigation and documentation scope. Official requirements and decisions are clarified with the competent authorities concerned. The documents needed for a particular procedure depend on the location and project. The technical report describes the specialist service performed; its conclusions are not presented unchecked as general authorisation for further groundworks or as an authority's decision.
Investigation task
Which specialist task comes next?
Relate the investigation to the proposed ground disturbance
Compare historical findings with the locations and depths of the planned works. Other existing reports and local measurement conditions inform method selection. The commission describes the conclusions actually needed. A general reference to further investigation needs does not replace specific service planning for each construction area.
Assess investigation methods for the specific construction areaShow changes from the earlier plan
If construction boundaries, foundations or utility routes differ, mark these differences. The specialist assessment can then assign existing conclusions specifically. Agree the next steps for areas not covered. This does not make an earlier investigation generally unusable; its documented scope nevertheless remains the basis for any further use.
Compare investigation methodsProject types
Relate individual conclusions to the complete investigation context
Distinguish the property from its surroundings in the assessment
Historical records may describe your own area and neighbouring land differently. Both conclusions retain their spatial references. Provide the associated maps and report conclusions. The specialist assessment evaluates their relationship for the current design; a sentence removed from its context does not replace this assessment.
Arrange specialist assessment of historical evidence
Determine further investigation from the outstanding question
If a historical assessment considers additional investigation necessary, clarify how far this has since been addressed. Include newer results already available. Plan a suitable service for ground volumes still unresolved. The specific ground works and actual measurement conditions matter, rather than only an earlier report heading.
Compare specialist services
Hand over reports and later results together
An updated project file should show the progression from historical assessment to investigations carried out. Keep spatial references and respective limitations available. Assign later findings with their dates and plan versions. The site management team can then judge which documents actually apply to the next work step.
Document findings and their limitationsPreparation
Prepare the scope and commission together
Establish what needs to be known before commissioning the work
First clarify which decision the commission needs to support. Is the task an initial assessment of existing documents, investigation of a specific area, or work on a finding already assessed? These tasks require different information. A general wish for safety does not define an investigation scope that can be carried out. The enquiry therefore identifies the ground disturbance, location, depth and available findings. Agree suitable specialist work and the results documents needed on this basis. Mark preparatory ground works such as demolition pits, new building connections, shoring points and working spaces too. Compare an earlier location plan with the present plan. The specialist assessment assigns the complete historical assessment and existing technical results to the affected areas and depths. For areas with unresolved questions, agree suitable specialist services and the results documents needed.
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.
Clarify preparatory work in the programmeAgree a clear scope and schedule
A reliable programme distinguishes tasks already technically resolved from prerequisites still outstanding. If an area will be only partly accessible, account for this when commissioning the work. Results handover and assessment also need time in the construction programme. An enquiry therefore does not produce a blanket commitment on timing or costs. Specific coordination relates the described scope to access, documents, construction conditions and the date a decision is needed. Identify available access and the sequence of individual construction sections. Locate known utilities, structures and possible measurement interference on the plan. These details help agree suitable methods and necessary preparations. The quotation describes the agreed task and evidence to hand over. For scheduling, record when the technically assessed results are needed before the next ground works.
Discuss the scope and scheduleTasks at the site
What an aerial photograph report establishes for your project
01
Read observations together with the assessment
An individual observation initially describes what was recognised in an image. The report may also consider other sources and limitations. Read its conclusions for the investigation area too. A sentence removed from its context cannot reliably establish whether investigation is still needed before the planned ground disturbance.
02
Assess the surroundings technically
Indications outside a property boundary may matter for assessment of the investigation area. They are not, however, a confirmed find on every neighbouring property. Specialist spatial assessment is needed. Today's cadastral boundary alone explains neither earlier use nor the extent of a historical event.
03
Relate the commission to the new ground disturbance
An earlier report may have been prepared for another construction area or design. Provide current location plans and proposed depths. Check which conclusions can be adopted and which areas need additional consideration. The same address does not guarantee the same investigation scope.
04
Keep unresolved indications identified
A suspicion or point that cannot be assessed conclusively is not a proven explosive ordnance item. Equally, submitting a report does not by itself resolve an outstanding question. Document which technical clarification remains necessary. For the construction programme, define which works can begin only once a suitable result is available.
Project documents
Documents that establish the next step
Read the conclusion together with the findings
A report's descriptive section and specialist assessment serve different purposes. An individual observation without adverse findings may sit alongside other indications. Further planning therefore needs the complete assessment. Keep maps, limitations and identified further investigation needs with the observations in particular. The project file brings together historical assessment and later technical results with their respective area and depth references. A report with plan appendices documents the method used, areas actually investigated, assessment and limits. For commissioned clearance work, the clearance record with location and results forms part of the evidence. Assign technical questions to a responsible contact.
Add later investigation stages specifically
A planning report records a particular point in time. Newer investigations or a changed construction design may already exist for present-day works. Obtain these documents where available. Do not replace missing later results with an assumption; technical coordination identifies the information supporting the next step. Record which additional results documents were requested and which are actually available. A completed technical investigation receives its own assessment status and plan reference. The site management team needs the corresponding assessed results for the next section. Hand over outstanding tasks with the affected area and responsible contact. Keep new plan versions and additional findings clearly assigned in the project file.
Construction sequence
Coordinate investigation and construction sections
Bring the complete property file together
Provide the historical assessment, subsequent investigations and current construction design together. Keep maps and appendices with their associated reports. The initial discussion clarifies which question has already been answered. For outstanding points, define the information and suitable further specialist services needed clearly. State which decision is needed before the next construction phase. A summary in a planning procedure helps locate the report; specialist assessment needs its complete contents and maps. Add known utilities, ground composition and available access. These define the conclusions still missing for the specific ground works and the further investigation scope.
Relate the next work section to the current findings
Before new earthworks, compare their areas and depths with existing results. Identify changes since the last report. Give complete documents to those whose work depends on them. A project summary may help orientation but does not replace the technical scope of the results. If the contractor changes, give the succeeding site management team the relevant reports and plan appendices for the area taken over. The handover identifies outstanding tasks, limitations and technical contacts. After an interruption, compare the next ground works with the documented status. Pass new findings and design changes to the affected parties with their dates.
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, the specialists assess whether a planned approach during construction is suitable. This includes coordinated investigation, interpretation and communication of findings within the intended work sequence. Visual observation of excavated material is not an interchangeable substitute for a necessary survey. Site management needs a clear description of when specialist work will take place, how new findings will be handled and which areas remain unresolved.
Agree the approach during constructionTechnical assessment
From historical assessment to a suitable investigation
Assess available sources together
The Historical aerial photograph analysis is part of the preliminary investigation. Other records may supplement the history of use and earlier investigations. The analysis must identify its source material and limits clearly. A general assurance cannot replace missing sources; consider these gaps when planning further measures.
Define the technical question
Whether Surveying is needed, and which method is suitable, follows from existing findings and the planned ground disturbance. Access, structures and possible measurement interference also matter. Historical assessment and technical investigation serve different purposes. Bring their results together for the specific design without confusing their limits.
Describe the next steps
A Clearance plan can coordinate necessary investigation and clearance services with the construction project. It records which questions remain unresolved and how results are handed over. Visual observation during excavation alone does not replace a necessary investigation. Plan a clearance method during construction only following specialist assessment and with suitable prerequisites.
Next steps
Use existing reports for the Rosenheim project
Obtain the complete report
A summary in a planning procedure may refer to a more extensive report. Where possible, request the original report with maps and appendices too. Check its author, date and investigation area. Later additions or technical results may matter for the current status and should not be replaced by the earlier summary. For the initial project discussion, identify the address, construction phase and forthcoming ground works. Specialist planning checks the complete documents for plan status, areas and depths covered, and questions still unresolved for the current task. Include any section already sufficiently resolved in further planning with its documented results scope.
Request missing older plans specifically
Rosenheim provides numerous legally binding land-use plans online. For plans that became legally binding before 2000, the city refers to an overview map and list, and inspection at the city planning department. A plan missing online therefore does not mean no documents exist. Identify the property as precisely as possible in an enquiry.
Add historical information and select the method
Where existing information does not yet answer the current question, carry out the necessary historical research or aerial photograph analysis for the specific construction area. Assign findings spatially and relate them to the proposed ground disturbance. Specialist planning uses these to determine the investigation scope and an appropriate method. Consider ground composition, structures, measurement limits and proposed depths. Agree access and necessary preparations with the responsible parties. Sufficient existing findings remain in use.
Identify design changes
Compared with a previously investigated project, show where buildings, trenches or foundations are added. State changed depths or working spaces too. This allows the remaining scope to be technically defined. The assessment should take place before construction so a new area is not mistakenly treated as already covered.
Carry out and assess the commissioned investigation
Specialist personnel carry out the defined surveying or supervision for the agreed task. Record measurement data, findings and actual investigation conditions with location and depth references. Areas not investigated or where interpretation is limited remain identified. Assess the data technically in relation to the investigation objective and local interference. These determine further work needed or results handover. If a suspicious object is encountered, interrupt the work and inform the responsible bodies.
Coordinate results with the site management team
Give the site management team the relevant reports and associated location plans. Contractors must be able to identify limitations and outstanding questions. If further earthworks are planned later, check their relationship to the existing results again. An organised set of documents helps this coordination when participants change too. Document the specialist assessment in a report with the associated plan appendices. Record methods, areas and depths actually investigated, and limits. The site management team compares the next ground works with these and agrees any further work needed before the affected construction begins.
Documentation
Treat project-specific services separately from reporting a find
Findings and their scope
Under the current Bavarian notice, general preliminary investigation of construction properties is not a task of the state explosive ordnance disposal service. It deals with explosive ordnance actually found. Municipalities are generally responsible for local hazard response. If a find is made, notify the police immediately, regardless of an existing private specialist commission.
Project responsibilities
FONTANA-EOD discusses the investigation and clearance services needed for the Rosenheim project with you. The BFR KMR provide technical principles for investigation and documentation with a direct scope concerning federal properties. This does not create a general additional investigation duty for every private project. The scope of services follows the specific outstanding questions and requirements.
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 conclusions are identified. They do not disappear into a total area figure. Designers and site management can then decide specifically which areas still need attention and when a suitable survey becomes possible.
Clarify changes before intervening in the ground
A new location, additional depth or different construction method is compared with previous results. A familiar project name does not replace this comparison. Feedback is provided before the affected work so that an outstanding question can be included in the sequence.
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
Identify the document version from its contents
A file name may differ from the version stated on the cover. For the project records, note the date and procedural stage shown in the document. Keep references to older reports distinct. This makes it possible to trace which assessment belongs to which plan version and which supplementary document was added.
Understand investigation reports and their limitationsRelate a recommendation to its implementation
A report may propose further investigation without documenting that it was later carried out. If results reports exist, assign them to the area concerned. If not, retain this as unresolved information. For current planning, therefore, check which service was actually performed and whether its conclusions fit the proposed ground disturbance.
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 further work answer different questions. The service overview helps distinguish these tasks in an enquiry.
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 historical aerial photograph findings
Does an aerial photograph without visible impacts mean no explosive ordnance should be expected?
This individual observation is insufficient for that conclusion. The overall specialist assessment, other available indications and limits of the analysis are decisive. A report may identify further investigation needs despite no wartime impacts being visible on the property.
Is the Hainzenmühlstraße document a current clearance?
No. The version dated 4 November 2021 describes a planning stage at that time and refers to further investigation needs. For present-day works, clarify later results and their relation to the specific ground disturbance. Agree the assessment still needed with the specialist contractor before current ground works. The municipality provides local hazard response; the state explosive ordnance disposal service supports response to specific hazards from legacy ordnance that has been found.
Can an indication from the surroundings affect my property?
This requires specialist assessment. An indication from the surroundings is neither automatically irrelevant nor evidence of explosive ordnance on your property. Its precise location, what the source establishes and other findings are decisive.
What should I do if an older land-use plan is missing online?
For plans that became legally binding before 2000, the City of Rosenheim refers to an overview and inspection at the city planning department. Enquire about the specific property and plan sought. Identify any explosive ordnance reports additionally needed separately.
How is a suspicious object reported?
Stop work, leave the object untouched and keep other people away. Notify the police immediately from a safe distance on 110. Further measures follow their instructions.
Which local details help plan a technical investigation?
Identify access, known structures and possible measurement interference with the locations and depths of the proposed works. Specialist planning relates these details to existing findings and the investigation objective. Historical assessment and technical investigation retain their respective conclusions.
Which date belongs in the project overview?
The version and associated procedural stage shown in the document. A differing file name should not determine its allocation.
How are earlier recommendations and costs for further services assessed?
Check whether the service was actually carried out later and which results are available. A recommendation alone does not document work performed. The work required for additional specialist services depends on area size or the number of points, depth, available documents, access, interference and the appropriate method. Agree necessary preparatory works and the results documents needed as part of the commission. Coordinate the date with the construction sequence and the time when technically assessed results are needed.
Project enquiry
Prepare the first technical discussion
Send the complete assessment
Compile the report, maps and later results. Does an aerial photograph analysis already exist for your Rosenheim construction project? Send us the complete report with the current design. We will discuss which conclusions are usable and which specialist services are still needed before the proposed earthworks.
Assign the current design
Show the property, depth and changes from older plans. Also state which earthworks are due to begin first and which areas are not yet accessible. This allows necessary preparations and results handover to be coordinated in good time.
Project process and documents
Project process and documentsMethods and technology
Methods and technologyIdentify responsibilities by project location
Identify responsibilities by project locationDefine the construction task and investigation needed
Define the construction task and investigation neededAgree further work on findings
Agree further work on findingsPlace EOD tasks in the project context
Place EOD tasks in the project contextUnderstand the investigation basis and limitations
Understand the investigation basis and limitations
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.
