8-inch ductile iron water main cost per linear foot in Illinois
Updated · BuildGets Team
Public bids in Illinois put the 8-inch ductile iron water main at a median of $146 per linear foot, with the middle half of bids between $124 and $199. That is 24 % below the national median of $192. Based on 46 bidder prices from 6 public bid tabulations opened between December 2022 and June 2025.
| Median bid in Illinois | $146 / LF |
| Middle 50 % of bids | $124 – $199 |
| National median | $192 (-24 %) |
| Bidder prices · bid tabs · owners | 46 · 6 · 1 |
Bid tabs in Illinois
| Owner | Bid opening | Low bid | Median of bids | Bids |
|---|---|---|---|---|
| Kings Road Watermain | Jun 2025 | $232 | 4 | |
| City of East Moline Engineering | Apr 2025 | $100 | $100 | 5 |
| Old Town 1-A Recon. | Jun 2024 | $150 | 9 | |
| 2024 Kings Road and Alameda Drive Drainage Improvements | Nov 2023 | $132 | 9 | |
| Lake Marian Woods Watermain Replacement | Jun 2023 | $155 | 14 | |
| 2022 LINCOLNWOOD MANOR RECONSTRUCTION | Dec 2022 | $134 | 5 |
Prices are what contractors bid on public jobs in Illinois, not installed costs from a price book. What each item includes varies by owner: read the item description in each bid tab before comparing. National figure and every state: 8-inch ductile iron water main unit price. Every unit price in Illinois: Illinois unit prices.
Cite as: BuildGets BID, 8-inch ductile iron water main cost per linear foot in Illinois, October 2026. https://www.buildgets.com/us/unit-prices/8-inch-ductile-iron-water-main/il/ (CC BY 4.0)
Questions
How much does an 8-inch ductile iron water main cost in Illinois?
Public bids in Illinois put the 8-inch ductile iron water main at a median of $146 per linear foot, with the middle half of bids between $124 and $199. That is 24 % below the national median of $192. Based on 46 bidder prices from 6 public bid tabulations opened between December 2022 and June 2025.
Is Illinois more expensive than the national average?
For this item the Illinois median bid is 24 % below the national median of $192. Bid prices depend on the owner, the job size and what the item includes, so compare with the sources below.