Standard Engineering Design Specifications for Construction and Maintenance of Roads and Bridges
The March 2012 Revisions to the Standard Specifications are now available for download. There are three (3) new specifications, one hundred one (101) revised specifications, and seventeen (17) deleted specifications
Please click here to download a complete copy of the Specifications. The download is one self-extracting file approximately 15.2 MB in size, containing one hundred sixty-five (165) files. Should you wish to download just the new and revised specifications, please click here to download one self-extracting file approximately 3.5 MB in size containing 106 files
Below is an index of all the specifications that can be viewed and/or downloaded individually. To view, simply click the specification number. To save to your computer, right click the specification number and select "Save Target As.."
The files are in the Adobe .pdf format. If you do not already have this reader, it is available free for download at Adobe's web site. Please note that in the instance that a dispute should arise over the interpretation of a specification the County Engineer's determination shall be considered final.
| No. | Specification Section | Revision No. | Revision Date |
| 102 | Clearing and Grubbing | 7 | 1 March 2012 |
| 104 | Removing Old Concrete | 3 | 1 March 2012 |
| 110 | Roadway Excavation | 7 | 1 March 2012 |
| 120 | Excavation for Channels, and other Drainage Facilities | 6 | 1 March 2012 |
| 130 | Borrow | 5 | 1 November 2008 |
| 132 | Embankment | 7 | 1 March 2012 |
| 160 | Topsoil | 5 | 1 March 2012 |
| 162 | Sodding for Erosion Control and Stabilization | 7 | 1 November 2008 |
| 164 | Seeding and Erosion Control Blanket | 4 | 1 November 2008 |
| 165 | Hydro-Mulch Seeding (for Erosion Control and Stabilization) | 5 | 1 November 2008 |
| 166 | Fertilizer | 2 | 1 March 2012 |
| 200 | Stripping | 7 | 1 March 2012 |
| 205 | Subgrade | 4 | 1 March 2012 |
| 220 | Lime Stabilized Subgrade | 5 | 1 March 2012 |
| 221 | Hydrated Lime and Lime Slurry | 3 | 1 March 2012 |
| 222 | Portland Cement Stabilized Subgrade | 3 | 1 March 2012 |
| 223 | Lime-Flyash or Flyash Stabilized Subgrade | 5 | 1 March 2012 |
| 224 | Quicklime (Stabilization) | 3 | 1 March 2012 |
| 230 | Crushed Aggregate Base Course | 4 | 1 March 2012 |
| 231 | Cement Stabilized Crushed Aggregate Base Course | 4 | 1 November 2008 |
| 250 | Hot Mix Asphaltic Concrete Base Course (Black Base) | 8 | 1 March 2012 |
| 251 | Base Repair with Hot Mix Asphaltic Concrete Base Course | 5 | 1 March 2012 |
| 252 | In-Place Full Depth Cold Flexible Pavement Recycling | 3 | 1 February 2011 |
| 309 | Milling Existing Pavement | 1 | 1 November 2008 |
| 310 | Prime Coat | 5 | 1 March 2012 |
| 320 | Single Course Surface Treatment | 4 | 1 March 2012 |
| 322 | Two Course Surface Treatment | 5 | 1 March 2012 |
| 323 | Emulsified Asphalt Treatment | 3 | 1 March 2012 |
| 324 | Seal Coat | 3 | 1 March 2012 |
| 340 | Hot Mix-Hot Laid Asphaltic Concrete | 11 | 1 March 2012 |
| 341 | Hot In-Place Asphalt Recycling | 3 | 1 March 2012 |
| 360 | Concrete Pavement | 15 | 1 March 2012 |
| 361 | Full Depth Repair of Concrete Pavement | 3 | 1 March 2012 |
| 400 | Structural Excavation and Backfill | 4 | 1 March 2012 |
| 402 | Bank Sand Backfill | 4 | 1 March 2012 |
| 403 | Driving Timber Piling | 3 | 1 March 2012 |
| 404 | Driving Steel Piling | 3 | 1 March 2012 |
| 405 | Driving Concrete Piling | 3 | 1 March 2012 |
| 407 | Treated and Untreated Timber Piling | 3 | 1 March 2012 |
| 408 | Steel Sheet Piling | 2 | 1 March 2012 |
| 409 | Steel H Piling | 1 | 1 November 2008 |
| 410 | Prestressed Concrete Piling | 3 | 1 March 2012 |
| 411 | Drilled Shaft Foundations | 4 | 1 March 2012 |
| 420 | Concrete Structures | 2 | 1 March 2012 |
| 421 | Structural Concrete | 8 | 1 March 2012 |
| 423 | Prestressed Concrete Units | 3 | 1 March 2012 |
| 424 | Extending Concrete Structures | 2 | 1 November 2008 |
| 427 | Joint Sealant for Bridges | 1st Issue | 1 March 2012 |
| 429 | Trench Safety System | 1 | 1 November 2008 |
| 430 | Construction of Underground Utilities | 10 | 1 March 2012 |
| 431 | Jacking, Boring or Tunneling Pipe | 2 | 1 March 2012 |
| 432 | Tunnel Construction | 2 | 1 March 2012 |
| 433 | Cement Stabilized Sand Bedding and Backfill Material | 12 | 1 March 2012 |
| 434 | Flowable Fill | 2 | 1 November 2008 |
| 435 | Timber Ordered Left In Trench | 2 | 1 November 2008 |
| 436 | Well Pointing | 2 | 1 March 2012 |
| 437 | Elastomeric Materials | 2 | 1 March 2012 |
| 438 | Preformed Joint Seal | 2 | 1 March 2012 |
| 439 | Polyurethane Joint Seal | 1 | 1 November 2008 |
| 440 | Reinforcing Steel | 2 | 1 March 2012 |
| 441 | Steel Structures | 1 | 1 November 2008 |
| 442 | Metals for Structures | 2 | 1 March 2012 |
| 445 | Structural Bolting | 2 | 1 November 2008 |
| 446 | Structural Welding | 1 | 1 November 2008 |
| 447 | Painting and Protective Coating | 2 | 1 March 2012 |
| 448 | Bridge Plaque | 2 | 1 March 2012 |
| 450 | Concrete and Steel Railing | 4 | 1 March 2012 |
| 451 | Removing and Replacing Damaged Railing | 2 | 1 March 2012 |
| 452 | Removing Railing | 1 | 1 February 2010 |
| 453 | Temporary Railing | 1 | 1 November 2008 |
| 454 | Deleted | Deleted | Deleted |
| 455 | Timber for Structures | 1 | 1 November 2008 |
| 456 | Timber Structures | 2 | 1 March 2012 |
| 457 | Timber Preservatives and Treatment | 1 | 1 November 2008 |
| 458 | Hardware for Heavy Timber Construction | 1 | 1 November 2008 |
| 459 | Timber Bents | 1 | 1 March 2012 |
| 460 | Reinforced Concrete Pipe | 9 | 1 March 2012 |
| 461 | Corrugated Metal Pipe | 7 | 1 March 2012 |
| 462 | Clay Pipe | 2 | 1 March 2012 |
| 463 | Safety End Treatment | 5 | 1 March 2012 |
| 464 | PVC Pipe | 1 | 1 November 2008 |
| 465 | Remove and Dispose of Existing Concrete or Metal Pipe | 1 | 1 November 2008 |
| 470 | Deleted | Deleted | Deleted |
| 471 | Precast Concrete Manholes | 8 | 1 March 2012 |
| 472 | Inlets | 9 | 1 March 2012 |
| 473 | Adjusting Manholes and Inlets | 2 | 1 November 2008 |
| 476 | Hydrostatic Testing of Pressure Lines | 1 | 1 November 2008 |
| 477 | Low Pressure Air Test-Sanitary Sewer Line | 2 | 1 March 2012 |
| 480 | Precast Reinforced Concrete box Sewers | 13 | 1 March 2012 |
| 481 | Monolithic Reinforced Concrete Box Sewers | 5 | 1 February 2011 |
| 491 | Reinforced Concrete Slope Paving | 3 | 1 March 2012 |
| 493 | Riprap | 2 | 1 November 2008 |
| 494 | Geotextiles | 2 | 1 March 2012 |
| 495 | Removing Old Structures | 2 | 1 November 2008 |
| 500 | Remove & Relocate or Dispose of Traffic Signs, Mail Boxes and Roadway Signs | 2 | 1 November 2008 |
| 501 | Tree Protection and Trimming | 2 | 1 March 2012 |
| 510 | Planing and/or Texturing Pavement | 1 | 1 November 2008 |
| 515 | Roadway Shell | 1 | 1 November 2008 |
| 516 | Installation of Flex Beam Guardrai | 9 | 1 March 2012 |
| 520 | Weighing and Measuring Equipment | 1 | 1 November 2008 |
| 526 | Membrane Curing | 4 | 1 November 2008 |
| 530 | Concrete Curb, Gutter, Curb and Gutter, Sidewalks and Driveways | 5 | 1 March 2012 |
| 531 | Colored Concrete for Sidewalks and Wheelchair Ramps | 1 | 1 November 2008 |
| 535 | Esplanades, Medians, and Directional Islands | 4 | 1 March 2012 |
| 536 | Coloring Concrete Medians and Sidewalks | 1 | 1 November 2008 |
| 537 | Wheel Stops | 1 | 1 November 2008 |
| 540 | Removing and Disposing of Existing Asphaltic Surface and Flexible Base Material | 1 | 1 November 2008 |
| 550 | Existing Fencing and Gates | 1 | 1 November 2008 |
| 551 | Clearing, Grubbing and Fencing | 2 | 1 February 2010 |
| 554 | Wood Fencing | 1 | 1 November 2008 |
| 555 | Chain Link Fencing | 4 | 1 March 2012 |
| 556 | Four Strand Barbed Wire Fence | 3 | 1 March 2012 |
| 559 | Construction Safety Fence | 1st Issue | 1 Febraury 2010 |
| 560 | Maintenance and Cleanup of Project Site | 1 | 1 November 2008 |
| 561 | Video Recording Construction | 2 | 1 November 2008 |
| 562 | Preparing the Right-of-Way | 1 | 1 November 2008 |
| 563 | CCTV Inspection of Storm Sewer | 1st Issue | 1 February 2010 |
| 624 | Aluminum Signs | 5 | 1 February 2010 |
| 646 | Roadside Traffic Sign Support | 5 | 1 March 2012 |
| 648 | Encapsulated Lens Reflective Sheeting for Traffic Control Signs (Hi-Intensity Grade) | 1 | 1 November 2008 |
| 649 | Wide Angle Prismatic Retroreflective Sheeting for Traffic Control signs (Diamond Grade) | 3 | 1 March 2012 |
| 658 | Delineators and Object Markers | 2 | 1 March 2012 |
| 660 | Reflectorized Pavement Markings | 5 | 1 March 2012 |
| 661 | Traffic Paint (Solvent Based) | 3 | 1 March 2012 |
| 662 | Glass Reflective Spheres for Traffic Paint | 2 | 1 November 2008 |
| 663 | Traffic Buttons and Pavement Markers | 4 | 1 March 2012 |
| 665 | Work Zone Pavement Markings | 3 | 1 November 2008 |
| 666 | Prefabricated Pavement Markings | 4 | 1 November 2008 |
| 669 | Pavement Surface Preparation for Markings | 1 | 1 November 2008 |
| 670 | Barricades | 10 | 1 March 2012 |
| 671 | Traffic Control | 7 | 1 March 2012 |
| 672 | Flagmen | 7 | 1 February 2011 |
| 673 | Constructing Detours for Maintaining Two-Way Traffic | 11 | 1 March 2012 |
| 674 | Removing Pavement Striping and Markings | 2 | 1 November 2008 |
| 675 | Traffic Paint Striping (Water Based) | 2 | 1 November 2008 |
| 676 | Traffic Paint (Water Based) | 2 | 1 March 2012 |
| 677 | Electrical Conduits for Traffic Signal Installation | 3 | 1 March 2012 |
| 678 | Zinc Coated Steel Wire Strand | 2 | 1 March 2012 |
| 679 | Insulated Jacketed Traffic Signal Cable | 2 | 1 March 2012 |
| 680 | Steel Mast Arm & Steel Strain Pole Assemblies | 2 | 1 March 2012 |
| 681 | Treated Timber Poles | 2 | 1 March 2012 |
| 682 | Deleted | Deleted | Deleted |
| 683 | Traffic Signal Supports - Pedestal Poles | 5 | 1 March 2012 |
| 684 | Deleted | Deleted | Deleted |
| 685 | Deleted | Deleted | Deleted |
| 686 | Road Illumination Assemblies (On Traffic Signal Poles) | 6 | 1 March 2012 |
| 687 | Flasher Assembly Installation | 5 | 1 March 2012 |
| 688 | Flasher Assemblies | 4 | 1 March 2012 |
| 689 | Twelve-Inch LED Traffic Signal Lamp Unit | 1st Issue | 1 March 2012 |
| 690 | Traffic Signal Heads | 5 | 1 March 2012 |
| 691 | Twelve Inch Signal Head with Programmable Visibility of Signal Faces | 1 | 1 November 2008 |
| 692 | Symbolic Pedestrian Signal Head (Incandescent Type) | 3 | 1 March 2012 |
| 693 | Traffic Signal Lamps | 2 | 1 February 2010 |
| 694 | Down Light for Traffic Signal | 5 | 1 March 2012 |
| 696 | Low Profile Concrete Barrier | 2 | 1 February 2011 |
| 698 | Temporary
Polyethylene Water-Filled Barrier |
1 | 1 November 2008 |
| 699 | LED Pedestrian Traffic Signal Lamp Unit | 1st Issue | 1 March 2012 |
| 700 | Notice of Intent | 2 | 1 March 2012 |
| 701 | Deleted | Deleted | Deleted |
| 702 | Deleted | Deleted | Deleted |
| 703 | Deleted | Deleted | Deleted |
| 704 | Deleted | Deleted | Deleted |
| 705 | Deleted | Deleted | Deleted |
| 706 | Deleted | Deleted | Deleted |
| 708 | Deleted | Deleted | Deleted |
| 709 | Deleted | Deleted | Deleted |
| 711 | Deleted | Deleted | Deleted |
| 713 | Reinforced Filter Fabric Barrier | 2 | 1 March 2012 |
| 714 | Deleted | Deleted | Deleted |
| 715 | Deleted | Deleted | Deleted |
| 716 | Deleted | Deleted | Deleted |
| 717 | Deleted | Deleted | Deleted |
| 719 | Inlet Protection Barriers | 2 | 1 March 2012 |
| 722 | Deleted | Deleted | Deleted |
| 723 | Deleted | Deleted | Deleted |
| 724 | Stabilized Construction Access (Type I - Rock) | 3 | 1 March 2012 |
| 725 | General Source Controls | 3 | 1 March 2012 |
| 727 | Deleted | Deleted | Deleted |
| 730 | Concrete Truck Washout Structures | 1 | 1 March 2012 |
| 741 | Inlet Protection Barrier (for Stage II Inlets, Gravel Bags) | 4 | 1 March 2012 |
| 750 | Rock Filter Dams | 3 | 1 March 2012 |
| 751 | SWPPP Inspection and Maintenance | 1 | 1 March 2012 |
| 1000 | Traffic Signal Installation and Modification | 1 | 1 March 2012 |
| 1210 | Intelligent Transportation System (ITS) Controller Cabinet Assembly | 1st Issue | 1 February 2011 |
| 2070 | Advanced Transportation Controller | 1st Issue | 1 February 2011 |
Revised: 3/1/12
If you have a question related to the specifications contact: Patrick Garrett.