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Cost by county

Construction unit costs in St. Louis County, MO

Median awarded unit prices for 80 items on public projects in St. Louis County, from winning bids in agency bid tabulations. Each item page lists its source documents.

Cost by state › Missouri › St. Louis County

ItemPerMedianMiddle halfWinning bidsLatest source document
Substructure Repair (Unformed)square foot$177.25$160.00 – $241.0061Dec 12, 2025, Open the source page, contract 251212-F01
Half-sole Repairsquare foot$158.00$98.50 – $175.0057Oct 17, 2025, Open the source page, contract 251017-F05
Silt Fencelinear foot$3.05$2.88 – $3.7647Jun 18, 2026, Open the source page, contract 260618-F01
Truck or Trailer Mounted Attenuator (Tma)each$2,500$1,688 – $5,00046Mar 15, 2024, Open the source page, contract 240315-F03
Preformed Thermoplastic Pavement Marking, 24 in. Whitelinear foot$20.00$18.00 – $25.0045Jun 18, 2026, Open the source page, contract 260618-F01
Preformed Thermoplastic Pavement Marking, Left/Right Arroweach$280.00$280.00 – $300.0043Jun 18, 2026, Open the source page, contract 260618-F01
Sh-flat Sheetsquare foot$36.00$28.82 – $40.0042Jun 18, 2026, Open the source page, contract 260618-F01
Pull Box, Preformed Class 1each$1,610$1,512 – $1,70139Jun 18, 2026, Open the source page, contract 260618-F01
Shf-flat Sheet Fluorescentsquare foot$38.06$34.85 – $44.0038Jun 18, 2026, Open the source page, contract 260618-F01
Type 5 Aggregate for Base (4 in. Thick)square yard$12.00$10.00 – $15.0037Jun 18, 2026, Open the source page, contract 260618-F01
Substructure Repair (Formed)square foot$210.00$168.00 – $275.0037Nov 14, 2025, Open the source page, contract 251114-F08
Coldmilling asphalt pavement for remove of surfacing (3 in. thick or less)square yard$3.25$2.75 – $4.3636Jun 18, 2026, Open the source page, contract 260618-F01
Type A Crashworthy End Terminal (Mash)each$3,900$3,800 – $4,00936Jun 18, 2026, Open the source page, contract 260618-F01
Concrete Sidewalk, 4 in.square yard$74.20$58.00 – $100.8435Jun 18, 2026, Open the source page, contract 260618-F01
Truncated Domessquare foot$27.10$22.25 – $30.0035Jun 18, 2026, Open the source page, contract 260618-F01
Cable, 16 AWG 2 Conductorlinear foot$1.42$1.10 – $1.7734Jun 18, 2026, Open the source page, contract 260618-F01
Cable, 10 AWG 1 Conductor, Pole and Bracketlinear foot$1.05$0.762 – $1.2534Jun 18, 2026, Open the source page, contract 260618-F01
Pull Box, Preformed Class 2each$2,340$2,200 – $2,49034Jun 18, 2026, Open the source page, contract 260618-F01
Base, Concretecubic yard$2,452$1,973 – $2,85634Jun 18, 2026, Open the source page, contract 260618-F01
Reinforced steel (epoxy coated)pound$3.00$2.08 – $4.0434Nov 14, 2025, Open the source page, contract 251114-F08
Changeable message sign without communication interface, con tractor furnish, contractor retainedeach$2,500$2,000 – $3,28834Apr 18, 2025, Open the source page, contract 250418-F02
Cable, 16 AWG 5 Conductorlinear foot$1.75$1.50 – $2.0633Jun 18, 2026, Open the source page, contract 260618-F01
MGS Guardraillinear foot$29.50$28.00 – $35.2532Jun 18, 2026, Open the source page, contract 260618-F01
Sh-flat Sheet - Signal Signsquare foot$38.00$36.19 – $43.9231Jun 18, 2026, Open the source page, contract 260618-F01
Curb Inlet Checkeach$120.00$50.00 – $131.8831Jun 18, 2026, Open the source page, contract 260618-F01
6 In. White High Build Waterborne Pavement Marking Paint, Type L Beadslinear foot$0.32$0.28 – $0.5531Apr 18, 2025, Open the source page, contract 250418-F02
Pavement marking removelinear foot$1.00$0.85 – $2.2131Jun 18, 2026, Open the source page, contract 260618-F01
Signal Sign, Mounting Hardwareeach$250.00$170.50 – $315.0031Jun 18, 2026, Open the source page, contract 260618-F01
Preformed Thermoplastic Pavement Marking, Combination Str/Lt/Rteach$450.00$412.50 – $500.0030Jun 18, 2026, Open the source page, contract 260618-F01
Concrete Curb (6 in. Height and Under) Type Slinear foot$52.00$41.00 – $84.5030May 15, 2026, Open the source page, contract 260515-F02
Turf Type Tall Fescue Soddingsquare yard$13.00$12.00 – $16.0030Jun 18, 2026, Open the source page, contract 260618-F01
Post, Signal 8 FT.each$1,226$1,150 – $1,32130Jun 18, 2026, Open the source page, contract 260618-F01
MGS End Anchoreach$2,000$1,800 – $2,11130Jun 18, 2026, Open the source page, contract 260618-F01
Conduit, 3 in., Trench with Tracer Wirelinear foot$17.44$16.00 – $19.0030Jun 18, 2026, Open the source page, contract 260618-F01
Concrete Footings, Embeddedcubic yard$3,200$2,800 – $3,60029Jun 18, 2026, Open the source page, contract 260618-F01
6 In. Concrete Median Stripsquare yard$140.00$122.50 – $170.0029Jun 18, 2026, Open the source page, contract 260618-F01
Full deep pavement repair saw cut (for perimeter and internal saw cuts)linear foot$10.00$7.00 – $12.0029Jun 18, 2026, Open the source page, contract 260618-F01
2 In. Psst Post - 12 GA.linear foot$30.00$27.00 – $32.0029Apr 17, 2026, Open the source page, contract 260417-F02
Cable, 16 AWG 7 Conductorlinear foot$2.15$2.00 – $2.5028Jun 18, 2026, Open the source page, contract 260618-F01
Conduit, 3 in., Pushed with Tracer Wirelinear foot$33.00$25.12 – $40.1328May 15, 2026, Open the source page, contract 260515-F02
Clean and epoxy coatingsquare foot$14.00$8.00 – $32.5027Aug 15, 2025, Open the source page, contract 250815-F01
Pull Box, Preformed Class 3each$3,140$2,868 – $3,35227Jun 18, 2026, Open the source page, contract 260618-F01
Paved Approach, 8 in.square yard$115.00$104.00 – $127.0027May 15, 2026, Open the source page, contract 260515-F02
Silicone expansion joint seallinear foot$42.00$42.00 – $61.5027Nov 15, 2024, Open the source page, contract 241115-F03
Furnishing and placing concrete material for full deep pavement repairsquare yard$365.00$283.50 – $432.5027Jun 18, 2026, Open the source page, contract 260618-F01
Dowel bar (drilling, furnishing and install) for full deep pavement repaireach$7.00$5.00 – $15.0027Jun 18, 2026, Open the source page, contract 260618-F01
Misc.countdown Pedestrian Signal Head, Type 1Seach$661.00$644.75 – $710.2726Jun 18, 2026, Open the source page, contract 260618-F01
Pipe postpound$8.25$6.12 – $10.0026Jun 18, 2026, Open the source page, contract 260618-F01
Signal Head, Type 3Beach$1,266$1,194 – $1,40126Jun 18, 2026, Open the source page, contract 260618-F01
Mulchingacre$2,662$1,800 – $5,35025Jun 18, 2026, Open the source page, contract 260618-F01
Temporary traffic barrier, contractor furnish / retainedlinear foot$25.00$21.00 – $31.0525Jun 18, 2026, Open the source page, contract 260618-F01
Diamond Grindingsquare yard$10.50$10.25 – $11.5025Nov 14, 2025, Open the source page, contract 251114-F08
Seeding - Cool Season Grassesacre$5,000$3,000 – $7,50025Jun 18, 2026, Open the source page, contract 260618-F01
Signal Head, Type 4Beach$1,482$1,395 – $1,57525Jun 18, 2026, Open the source page, contract 260618-F01
2.5 In. Psst Post - 12 GA.linear foot$33.00$30.00 – $38.0025Apr 17, 2026, Open the source page, contract 260417-F02
Preformed Thermoplastic Pavement Marking, Straight Arroweach$250.00$200.00 – $250.0025May 15, 2026, Open the source page, contract 260515-F02
Open Cell Foam Joint Seallinear foot$110.00$100.00 – $131.0024Nov 14, 2025, Open the source page, contract 251114-F08
Slope Protectionsquare yard$116.50$98.00 – $197.7524Jun 18, 2026, Open the source page, contract 260618-F01
Remove of existing deck repairsquare foot$22.00$22.00 – $38.7024Nov 14, 2025, Open the source page, contract 251114-F08
Asphalt pavement mixture pg64-22, (bp-1)ton$135.00$105.97 – $172.5024Jun 18, 2026, Open the source page, contract 260618-F01
Cable-conduit, 1 in., 2 Conductors and 1 Bare Neutral, 8 AWGlinear foot$5.60$4.57 – $6.0924Jun 18, 2026, Open the source page, contract 260618-F01
Full deep repairsquare foot$215.00$195.56 – $280.0024Nov 14, 2025, Open the source page, contract 251114-F08
Field Application of Inorganic Zinc Primersquare foot$3.50$2.00 – $4.0024Nov 14, 2025, Open the source page, contract 251114-F08
Controller Assembly Housing, Nema TS2 Controllereach$21,058$19,562 – $22,99624Jun 18, 2026, Open the source page, contract 260618-F01
Culvert Cleanouteach$1,950$1,348 – $4,32124May 15, 2026, Open the source page, contract 260515-F02
6 In. Yellow High Build Waterborne Pavement Marking Paint, Type L Beadslinear foot$0.33$0.28 – $0.48824Apr 18, 2025, Open the source page, contract 250418-F03
Preformed Thermoplastic Pavement Marking, 12 in White, Yield Line Triangleseach$65.00$22.50 – $66.6223May 16, 2025, Open the source page, contract 250516-F01
Supplementary Wearing Surface Materialcubic yard$700.00$700.00 – $700.0023Dec 12, 2025, Open the source page, contract 251212-F01
Misc.epoxy Urethane Polymer Wearing Surface With Healer/sealersquare yard$41.00$38.67 – $44.0023May 16, 2025, Open the source page, contract 250516-F01
Impact Attenuator (Relocation)each$1,000$759.00 – $1,07823Jun 18, 2026, Open the source page, contract 260618-F01
Class B-2 Concretecubic yard$4,500$4,500 – $5,12523Nov 14, 2025, Open the source page, contract 251114-F08
Trench type ilinear foot$6.42$6.00 – $7.9423Jun 18, 2026, Open the source page, contract 260618-F01
Latex Modified Concrete Wearing Surfacesquare yard$138.00$130.00 – $140.0023Dec 12, 2025, Open the source page, contract 251212-F01
Rock Ditch Checklinear foot$20.00$14.00 – $42.5023Jun 18, 2026, Open the source page, contract 260618-F01
Type 5 Aggregate for Base (6 in. Thick)square yard$16.00$11.75 – $20.0023Jun 18, 2026, Open the source page, contract 260618-F01
St-structuresquare foot$36.00$35.00 – $42.0023Jun 18, 2026, Open the source page, contract 260618-F01
Total Surface Hydro Demolitionsquare yard$48.00$48.00 – $58.0023Dec 12, 2025, Open the source page, contract 251212-F01
Misc.atc Traffic Signal Controllereach$5,494$5,262 – $5,77922Jun 18, 2026, Open the source page, contract 260618-F01
Misc.sl District Traffic Signal Detection Systemeach$38,234$34,300 – $43,47122May 15, 2026, Open the source page, contract 260515-F02
Driven Post Anchor for 2 in. Psst - 12 GA.each$280.69$231.25 – $323.8822May 15, 2026, Open the source page, contract 260515-F02

Other counties in Missouri