Field Drainage Tile Maps
Subsurface drainage tile layouts affect field hydrology, nutrient runoff, and yield potential -- this buried infrastructure data barely exists in digital form.
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Find Me This Data →Overview
What Is Field Drainage Tile Maps?
Field drainage tile maps are digital records of subsurface drainage systems—networks of buried pipes designed to manage soil water and improve farm productivity. These maps document the location, size, and configuration of lateral lines, main lines, and drainage structures installed beneath agricultural fields. Tile drainage has become one of the dominant agricultural management practices in the United States, with widespread expansion since the late 1990s, particularly in the Midwest where operators invest in pattern tile systems to increase yields and enable earlier field access. The infrastructure itself is largely invisible once installed, making maps critical for property valuation, environmental assessment, and drainage system maintenance. Historically, this data existed only in paper form or contractor records; today, digital tile drainage maps—created through geospatial modeling, field surveys, and RTK topography mapping—are emerging as essential tools for farmers, landowners, lenders, and environmental researchers studying the impacts of drainage on hydrology, nutrient transport, and crop performance.
Market Data
86.03% accuracy across CONUS; 30-m resolution map validated against 16,000 ground-truth points
AgTile-US Coverage & Accuracy
Source: PubMed Central
$800–$1,200 per acre for land with pattern tile drainage
Value Add per Tiled Acre
Source: High Point Land Company
$1,850–$3,700 per acre
Installation Cost
Source: Investigate Midwest
5%–25% annual crop yield improvement
Yield Increase Potential
Source: Investigate Midwest
Who Uses This Data
What AI models do with it.do with it.
Farm Valuation & Property Sales
Landowners and buyers use tile maps to document drainage improvements, establish fair market value, and justify property pricing. Maps from contractors or previous owners are essential for appraisals and tax basis calculations.
Precision Drainage Design
Agricultural engineers and drainage consultants use topographic maps and soil drainage data to design custom systems optimized for field hydrology, spacing, and ROI. Advanced mapping tools like AGREM software guide pipe placement decisions.
Environmental & Hydrological Research
Researchers and regulators use high-resolution tile drainage maps to study regional impacts on streamflow, nutrient runoff, water quality, and climate adaptation. Digital maps enable landscape-scale analysis impossible with paper records.
System Maintenance & Remediation
Farmers and drainage contractors use maps to locate and inspect tile lines, identify blockages, plan repairs, and upgrade systems with tighter spacing (e.g., 45 feet vs. legacy 60–90 foot spacing) for improved productivity.
What Can You Earn?
What it's worth.worth.
Tile Locate & Mapping Service
Varies
Local tile companies offer field location surveys and map generation at relatively low cost; rates vary by region and field size.
Digital Dataset License (Regional)
Varies
AgTile-US and similar geospatial datasets may be licensed for research, environmental consulting, or regional planning; pricing not specified in sources.
Precision Design Consultation
Varies
Engineering firms charge for custom drainage design using RTK topography and geospatial modeling; costs tied to field acreage and complexity.
What Buyers Expect
What makes it valuable.valuable.
Spatial Accuracy
High-resolution mapping (30-m or finer) with ground-truth validation to ensure lateral and main line locations are precise and reliable for design, maintenance, and environmental modeling.
Complete Documentation
Maps must show lateral and main drainage lines, pipe size and material, control structures, inlet/outlet locations, and installation date when available. Installation receipts and contractor records strengthen credibility.
Geospatial Inputs
Integration of soil drainage classification (SSURGO data), topographic slope, and county-level census estimates to model tile-drained areas and support predictive accuracy.
Historical & Current Condition
Data should reflect tile age, material type (clay vs. plastic), spacing, and maintenance history. Depreciation schedules and field photos (especially post-rain aerial imagery) validate system condition.
Companies Active Here
Who's buying.buying.
Generate tile maps during installation and for clients seeking locate services; use data to plan new systems and document completed work for valuation.
Acquire tile maps to establish property value, document improvements for sales listings, and justify pricing premiums for drained vs. undrained land.
License geospatial tile drainage datasets (e.g., AgTile-US) to model regional impacts on streamflow, nutrient pollution, and water quality at watershed and continental scales.
Use RTK topography maps and soil/slope data to design precision drainage systems; combine with field surveys to optimize spacing, pipe size, and outlet routes.
Maintain county-level tile drainage census data and soil information (SSURGO) used to constrain geospatial models and guide conservation planning.
FAQ
Common questions.questions.
Why do tile drainage maps matter if the infrastructure is underground?
Tile systems are invisible once installed but critical for farm productivity, property value, and environmental impact. Maps enable landowners to document investments, allow contractors to maintain and upgrade systems, and let researchers study regional effects on hydrology and water quality. Without maps, tile locations must be traced through paper records or costly field surveys.
How accurate are digital tile drainage maps like AgTile-US?
AgTile-US achieved 86.03% accuracy across the contiguous US using geospatial modeling constrained by USDA county census data, soil drainage classification, and topographic slope. The 30-meter resolution dataset was validated against 16,000 ground-truth points and is sufficiently reliable for regional hydrological and environmental studies.
What adds the most value: having tile, or having a map of existing tile?
Having tile adds $800–$1,200 per acre in land value and can boost yields 5–25%. Having a documented map of that tile is essential to realize that value—landowners must provide receipts, contractor records, or a tile locate survey to prove the system exists, its specifications, and condition. Without documentation, buyers and appraisers cannot justify the premium.
How often do farmers upgrade or add tile to existing fields?
Tile installation is ongoing, especially in the Midwest. Operators frequently upgrade legacy systems with tighter spacing (45 feet instead of 60–90 feet) to improve drainage and productivity. Updates are typically scheduled after harvest and before frost, and new work should be documented with updated maps and installation records.
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