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12-inch ductile iron water main cost per linear foot

Updated · BuildGets Team

Public bids put the 12-inch ductile iron water main at a median of $240 per linear foot, with the middle half of bids between $175 and $350. Based on 240 bidder prices from 41 public bid tabulations.

Median bid$240 / LF
Middle 50 % of bids$175 – $350
Bidder prices240
Bid tabulations41

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By state

StateMedian bidBidsBid tabs
Texas$2418113
Illinois$165494
North Carolina$383254
Georgia$143111
Massachusetts$189101
Minnesota$13261

By project

OwnerStateBid openingLow bidMedian of bidsBids
CITY OF AUSTINTXApr 2026$185$1989
CITY OF AUSTINTXApr 2026$2568
City of AustinTXApr 2026$3006
City of HastingsMNApr 2026$133$1326
CITY OF AUSTINTXApr 2026$26412
CITY OF AUSTINTXFeb 2026$3332
Fayetteville Public Works CommissionNCJan 2026$820$2959
City of AustinTXJan 2026$2224
CITY OF AUSTINTXDec 2025$3005
CITY OF AUSTINTXNov 2025$25710
CITY OF AUSTINTXNov 2025$170$2634
CITY OF AUSTINTXNov 2025$2506
Gwinnett CountyGASep 2025$147$14311
Fayetteville Public Works CommissionNCAug 2025$1,060$5008
Kings Road WatermainILJun 2025$2744
City of La MarqueTXMay 2025$150$1796
WALLER COUNTY MUNICIPAL UTILITY DISTRICT NO. 43TXMay 2025$9915
City of East Moline EngineeringILApr 2025$125$14015
Galveston County W.C. & I.D. No. 12TXApr 2025$115$1474
PWCNCJul 2024$86.00$90.502
CENTER & N MAIN ST WATER SYSTEM IMPROVEMENTSMAFeb 2024$182$18910
2024 Kings Road and Alameda Drive Drainage ImprovementsILNov 2023$1649
Fayetteville PWCNCJul 2023$900$6056
Lake Marian Woods Watermain ReplacementILJun 2023$19421
South Broadway Multimodal Improvements (#8134257)Jan 2022$1,600$1,5012
National Western Center Pedestrian Bridge$3,485$2,6042
Washington Street 47th to 52nd$860$8165
Marston Lake North Upstream of Glenbrook Pond Phase 2$235$1,3856
Torreys Peak General Storm$262$3104
W 29th Ave & Speer Blvd Sanitary Improvements$410$4512
Tennessee & Oneida Storm System, Phase 1$3973
I-25 & Broadway Interchange Reconstruction Segment$1,3001
$411$5244
City and County of DenverCO$267$3242
General Storm - Mt. Blanca$5135
$485$33912
MT MASSIVE GENERAL STORM$305$3055
Glenbrook Basin$2766
201736063 E Yale Ave Storm Phase 1 project$3226
$400$4004
S 4th Street Water and Sewer Replacement$907$2046

Related unit prices

Prices are what contractors bid on public jobs, not installed costs from a price book. What each item includes varies by owner: read the item description before comparing. Methodology and all items: water and sewer unit price index.

Questions

How much does a 12-inch ductile iron water main cost?

Public bids put the 12-inch ductile iron water main at a median of $240 per linear foot, with the middle half of bids between $175 and $350. Based on 240 bidder prices from 41 public bid tabulations.

Does the price include excavation and restoration?

It depends on each bid form: some owners include excavation, bedding, backfill or restoration in this item and others pay them as separate items. Check the item description of each source.