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Hubstake
Drainage HS-DRN-CMP-X-30

CMP pipe, 30 in

Unit LF · Lettings May 19, 2005 – Aug 23, 2023 · 3 agencies · 3 agency descriptions pooled

Pooled median

$41.15/ LF

p25–p75
$34.05 – $52.25
Prices in the median
283
Source documents
180
States
3
p25 $34.05p75 $52.25

17 of 300 prices fell outside the Tukey fences (p25 − 1.5×IQR to p75 + 1.5×IQR) and are excluded from the figures above. They remain on the item pages below.

The 3 descriptions behind this price

Each agency prints this item in its own words. Every one keeps its own page and its own median; this page is the pooled view.

As the agency printed itWinning bidsMedianp25–p75
30" Corr. Galv. Steel Pipe295$42.00$34.25 – $55.12
30 Inch Corrugated Metal Pipe thin4$160$124 – $199
30" Pipe CMP thin1$397$397 – $397

By agency

Oklahoma DOT295
MaineDOT4
VDOT (Bristol (1))1

By state

Oklahoma295
Maine4
Virginia1

How this bucket was built

Hubstake parses each printed description into structured attributes — material, class, size, work type — and mints the identifier HS-DRN-CMP-X-30 from them. Only descriptions the parser accounted for in full are pooled; anything it could not read in full keeps its own page and stays out of this median, because the part it could not read is usually the part that moves the price. Award, bid and final-payment prices are never blended — this bucket is award prices.

How the index is built