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

The median awarded price is $41.42 per square foot, from 26 winning bids on 26 public projects in Lake County, IL (2024–2026). Half of the awarded prices fall between $36.68 and $53.99.

Cost by state › Illinois › Lake County › Detectable Warnings

$41.42median per square foot
$36.68 – $53.99middle half (25th–75th percentile)
26winning bids, 26 source documents
2024–2026lettings 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 $32.00 in 2020 to $45.00 in 2025 (+41%).

YearMedian per square footWinning bids
2020$32.008
2021$30.0011
2022$45.0011
2023$40.009
2024$40.0011
2025$45.0011

Most recent source documents

LettingAgencyQuantityAwarded unit priceSource
Jun 12, 2026IDOT51 SQ FT$40.00Open bid tab, 80C48 ↗
Feb 27, 2026IDOT54 SQ FT$40.00Open bid tab, 80B75 ↗
Jan 16, 2026IDOT360 SQ FT$25.00Open bid tab, 61M08 ↗
Jan 16, 2026IDOT415 SQ FT$28.50Open bid tab, 80B50 ↗
Nov 7, 2025IDOT101 SQ FT$53.95Open bid tab, 61L83 ↗

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

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