DatasetPressDiscover
Identify authoritative public records and their limits.
A public-data publishing studio
DatasetPress Hard-to-find public data, cleaned and ready to use.
We find fragmented public records, normalize them into consistent tables, document the decisions, and prepare them for serious research and analysis.
Explore the data before you buy
Michigan Public Works Unit Price Explorer
Search historical bid-item prices for water, sewer and utility construction. Compare prices by unit, browse source-linked samples, and see the coverage behind the $79 edition.
Explore Michigan PricesThe process
Useful data requires more than a download.
Public records are often scattered across agencies, locked in awkward formats, and inconsistent over time. DatasetPress treats provenance, normalization, and quality checks as part of the product.
Preserve
Record where each value came from and when it was found.
Normalize
Resolve shifting labels, units, dates, and table structures.
Validate
Check types, ranges, duplicates, totals, and exceptions.
Document
Publish definitions, caveats, lineage, and known gaps.
First dataset
2026 Edition
Michigan Municipal Water & Sewer Bid Prices
Actual historical contractor bids, normalized into a source-linked professional reference for Michigan water and sewer work.
The 2026 Edition contains 15,814 usable normalized historical price observations across 88 project records, with 50 agencies represented in usable data and 133 bidders.
$79 one-time: Excel and CSV delivery, all-bidder and winning-bid views, source indexes, QA flags, and methodology. No subscription.
Product coverage
Water mainSewer pipeHydrantsValvesManholesServicesCIPPDirectional drillingUnit pricesQuantities
Observed bid dates span January 2023 through July 2026. The edition preserves the underlying wording and sources while keeping interpretation limits visible.
Why DatasetPress
Built for work that needs defensible inputs.
A clean file is only useful when researchers can understand its origin, meaning, changes, and limitations.
Traceable
Source lineage stays connected to the resulting records.
Practical
Stable, normalized fields are prepared for familiar Excel and CSV workflows.
Tested
Repeatable checks expose duplicates, gaps, and unusual values.
Documented
Definitions and caveats travel with the dataset.
Honest
Unknowns, thin samples, and interpretation limits are stated plainly.
Future catalog
One careful dataset at a time.
DatasetPress will expand into overlooked public datasets where better structure and documentation can unlock meaningful analysis. New catalog entries will appear only after they meet the same provenance, quality, and rights-review standards.
Also in the catalog · Detroit
Construction activity, connected by property.
222,896 building, trade, demolition and plan-review records. 89,856 property groups. A documented September 2026 snapshot in Excel and CSV.