Orange County Transportation Authority

156 public works projects registered with the California Department of Industrial Relations, 2008–2026 · Orange, Orange County. Reported contract value: $154,805,521.

Projects by year

YearProjectsReported contract value
20267$20,433,917
20256$66,499,521
202410$58,774,629
202310$4,990,190
202214—
202113—
202018—
201913$4,107,265
201811—
20178—
20168—
20157—
201415—
201312—
20081—

DIR has published contract amounts since July 2024; earlier years count projects only.

Types of work

  • Other · 48
  • Buildings & facilities · 29
  • Paving & streets · 11
  • HVAC & mechanical · 10
  • Electrical, low voltage & AV · 9
  • Parks, landscape & fields · 7
  • Traffic & signals · 7
  • Design, inspection & consulting · 6
  • Demolition & site work · 5
  • Bridges & structures · 4
  • Roofing · 4
  • Concrete & masonry · 4

Inferred by Atriam from each project's name and description, not reported by the agency.

Contractors it awards most

Prime contractorProjectsReported contract value
STANTEC ARCHITECTURE INC.2$11,687,652
CLEAN ENERGY1$18,630,266
ESP Enterprises, Inc.1$12,287,429
N K S MECHANICAL CONTRACTING INC1$4,593,000
BOSCO CONSTRUCTORS INC1$4,450,000
ASPLUNDH CONSTRUCTION LLC1$2,790,147
JOSHUA GRADING & EXCAVATING, INC.1$889,789
AESCO TECHNOLOGIES1$475,000
LIGHTING TECHNOLOGY SERVICES, INC.1$470,670
DETAILS CUSTOM BUILDERS INC1$331,921
GOLDEN GATE CONSTRUCTION1$329,640
SOUTHWEST LIFT & EQUIPMENT INC1$238,144
SERVI-TEK ENGINEERING & FACILITY SOLUTIONS, LLC1$235,111
STANTEC CONSULTING SERVICES INC1$198,165
PAN-PACIFIC MECHANICAL LLC1—

Latest projects

DateProjectPrime contractorContract amount
Sep 20, 2026Suite 815-820-850Buildings & facilitiesDETAILS CUSTOM BUILDERS INC$331,921
Jun 15, 2026UST Removal Subsurface InvestigationOtherSTANTEC CONSULTING SERVICES INC$198,165
May 26, 2026Design-Build of Hydrogen Fueling StationBuildings & facilitiesCLEAN ENERGY$18,630,266
Mar 31, 2026Main Street Town Center – Engineering SeDesign, inspection & consultingSERVI-TEK ENGINEERING & FACILITY SOLUTIONS, LLC$235,111
Jan 12, 2026Facility Modifications at Santa Ana BusBuildings & facilitiesGOLDEN GATE CONSTRUCTION$329,640
Jan 12, 2026Bus Hoist Replacement at the Anaheim BusOtherSOUTHWEST LIFT & EQUIPMENT INC$238,144
Jan 12, 2026Installation of Battery Electric VehicleSolar, EV & energyLIGHTING TECHNOLOGY SERVICES, INC.$470,670
Oct 13, 2025Inland Slope Rehabilitation Phase 2OtherBOSCO CONSTRUCTORS INC$4,450,000
Aug 29, 2025Coastal Rail Stabilization - Area 1 SandOtherJOSHUA GRADING & EXCAVATING, INC.$889,789
Jul 28, 2025PS&E for Improv to OCTA HeadquartersOtherSTANTEC ARCHITECTURE INC.$7,580,387
Jun 23, 2025Installation of BEB chargers &electricalElectrical, low voltage & AVASPLUNDH CONSTRUCTION LLC$2,790,147
Jun 13, 2025Coastal Rail Stabilization - Area 3Parks, landscape & fields—$46,196,198
Apr 28, 2025Replacement of Mechanical Units at SAHVAC & mechanicalN K S MECHANICAL CONTRACTING INC$4,593,000
Dec 19, 2024Oncall Materials Testing & InspectionDesign, inspection & consultingAESCO TECHNOLOGIES$475,000
Nov 25, 2024Replacement of Fareboxes & Related EquipOtherESP Enterprises, Inc.$12,287,429
Sep 23, 2024Construction of TSOCBuildings & facilities—$44,452,000
Jul 8, 2024Bus Hoist Replacement at Irvine Sand CanOther——
Jun 24, 2024Building Repairs at Santa Ana Bus BaseBuildings & facilities—$1,560,200
Jun 24, 2024Fence Installation at PE right of way inBuildings & facilities——
Jun 17, 2024Painting, coating, and roof replacementRoofing——
Mar 25, 2024Seal Coat and Striping at Irvine ConstruPaving & streets——
Mar 25, 2024Concrete Repairs at Irvine Sand Canyon BConcrete & masonry——
Feb 26, 2024Genetec Transition ProjectElectrical, low voltage & AV——
Dec 20, 2023On-Call Property Maintenance & Related SDemolition & site work——
Nov 25, 2023Aspire Bakeries and Truck Dock AdditionsBridges & structures——

Source: California Department of Industrial Relations public works project registrations (PWC-100), updated daily by Atriam.