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Detectable Warnings: cost per square foot in Cook County, IL

The median awarded price is $39.75 per square foot, from 175 winning bids on 175 public projects in Cook County, IL (2023–2026). Half of the awarded prices fall between $30.00 and $44.98.

Cost by state › Illinois › Cook County › Detectable Warnings

$39.75median per square foot
$30.00 – $44.98middle half (25th–75th percentile)
175winning bids, 175 source documents
2023–2026lettings covered (last 3 years)

Winning bids only, as printed in the agencies' bid tabulations (IDOT). The county is the one the agency recorded for the project. These are prices agencies awarded, not quotes: a price on a given job depends on quantity, location and timing, and the figures here are not adjusted for any of them.

Trend

The median awarded price went from $30.38 in 2021 to $33.00 in 2026 (+9%).

YearMedian per square footWinning bids
2021$30.3856
2022$35.0048
2023$37.5044
2024$38.5060
2025$40.0062
2026$33.0044

Most recent source documents

LettingAgencyQuantityAwarded unit priceSource
Sep 18, 2026IDOT1815 SQ FT$20.45Open bid tab, 62V55 ↗
Sep 18, 2026IDOT273 SQ FT$42.00Open bid tab, 62V85 ↗
Sep 18, 2026IDOT799 SQ FT$40.00Open bid tab, 62W73 ↗
Sep 18, 2026IDOT747 SQ FT$25.00Open bid tab, 62V90 ↗
Sep 18, 2026IDOT1381 SQ FT$25.00Open bid tab, 62X84 ↗

The same item across Illinois: statewide figures. See every awarded price for this item on the Detectable Warnings item page.

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