Electrical materials
Information and approvals for roadside electrical equipment used for lighting, traffic signal, and intelligent transportation systems (ITS).
This page provides information on pre-approved equipment for roadway lighting, traffic signal, and ITS equipment, including some additional clarification on evaluation criteria.
Use the links below to jump to a specific equipment section:
Pre-Approved Light and Signal Standards
Electrical and Communications Boxes and Vaults
ITS Proprietary (Sole-Source) Equipment
Pre-Approved Light and Signal Standards
Light and signal standards (poles) require an approved shop drawing for use in WSDOT systems. The following light and signal standards have pre-approved shop drawings on file for fabrication inspection and approval.
Type 1 Light Standards
| Manufacturer | Drawing Number(s) | Pages | Approval Date | Note(s) | |
|---|---|---|---|---|---|
| Ameron (NOV) | WA15LT3721, Rev. A | 2 | 260KB | 9/28/2018 | |
| Millerbernd Manufacturing, Co. | 74515-WA-LP1-SB, Rev. H | 3 | 829KB | 10/21/2020 | Standard base plate (fixed and slip base) |
| Millerbernd Manufacturing, Co. | 74515-WA-LP1-ELBOW, Rev. J | 3 | 513KB | 9/14/2020 | Standard pole with bridge elbow mount |
| Millerbernd Manufacturing, Co. | 74515-WA-LP1-BB, Rev. H | 2 | 400KB | 9/14/2020 | Barrier mount base plate |
| Valmont Industries, Inc. | DB01164, Rev. B | 5 | 354KB | 10/22/2018 |
Small Signal Standards (Type PPB, PS, I, RM, and FB Signal Standards)
| Manufacturer | Drawing Number(s) | Pages | Approval Date | Note(s) | |
|---|---|---|---|---|---|
| Ameron (NOV) | WA15TR10-1, Rev. C | 1 | 124KB | 2/1/2019 | Type PPB, PS, I, RM, and FB; Fixed base |
| Ameron (NOV) | WA15TR10-2, Rev. C | 1 | 122KB | 2/1/2019 | Type PS, I, RM, and FB; Slip base |
| Ameron (NOV) | WA15TR10-3, Rev. B | 1 | 90KB | 2/1/2019 | Type PPB; Breakaway base |
| Millerbernd Manufacturing, Co. | 74514-WA-PED-PPB, Rev. J | 2 | 101KB | 3/30/2021 | Type PPB; Fixed base |
| Millerbernd Manufacturing, Co. | 74514-WA-PED-FB, Rev. J | 2 | 131KB | 3/30/2021 | Type PS, I, RM, and FB; Fixed base |
| Millerbernd Manufacturing, Co. | 74514-WA-PED-SB, Rev. K | 2 | 156KB | 3/30/2021 | Type PS, I, RM, and FB; Slip base |
| Valmont Industries, Inc. | DB01165, Rev. B | 4 | 321KB | 10/22/2018 | Type PPB, PS, I, RM, and FB |
Type II and III Signal Standards
| Manufacturer | Drawing Number(s) | Pages | Approval Date | Note(s) | |
|---|---|---|---|---|---|
| Ameron (NOV) | WA15TR3724-1, Rev. C (Sheet 1) and WA15TR3724-2, Rev. D (Sheet 2) | 2 | 202KB | 9/28/2018 | |
| Millerbernd Manufacturing, Co. | 74516-WA-TS-II, Rev. L | 3 | 296KB | 10/28/2021 | Type II |
| Millerbernd Manufacturing, Co. | 74516-WA-TS-III-J, Rev. L | 4 | 339KB | 10/28/2021 | Type III |
| Valmont Industries, Inc. | DB01162, Rev. B | 5 | 387KB | 10/22/2018 |
Type IV and V Signal Strain Poles
| Manufacturer | Drawing Number(s) | Pages | Approval Date | Note(s) | |
|---|---|---|---|---|---|
| Ameron (NOV) | WA15TR15, Rev. A | 2 | 166KB | 9/17/2018 | |
| Millerbernd Manufacturing, Co. | 74554-WA-SP-IV, Rev. H | 2 | 342KB | 9/14/2020 | Type IV |
| Millerbernd Manufacturing, Co. | 74554-WA-SP-V, Rev. J | 3 | 511KB | 9/14/2020 | Type V |
| Valmont Industries, Inc. | DB01167, Rev. B | 2 | 210KB | 10/22/2018 |
Type CCTV Standards
| Manufacturer | Drawing Number(s) | Pages | Approval Date | Note(s) | |
|---|---|---|---|---|---|
| Ameron (NOV) | WA15CCTV01, Rev. B | 2 | 166KB | 9/17/2018 | |
| Millerbernd Manufacturing, Co. | 74577-WA-LC1, Rev. H | 2 | 364KB | 9/14/2020 | Load Case 1 |
| Millerbernd Manufacturing, Co. | 74577-WA-LC2, Rev. H | 2 | 372KB | 9/14/2020 | Load Case 2 |
| Millerbernd Manufacturing, Co. | 74577-WA-LC3, Rev. H | 3 | 488KB | 9/14/2020 | Load Case 1; Bridge elbow mount |
| Valmont Industries, Inc. | DB01166, Rev. C | 4 | 280KB | 10/22/2018 |
Load cases for CCTV Standards (see Standard Plan J-29.15) - numbers in parenthesis are quantities:
Load Case 1:
- (1) top mount CCTV camera, 4 sq. ft., installed at 2 ft above pole top (additional height from camera mount assembly)
- (1) radio dish, 12" dia., installed at pole top
- (1) NEMA Cabinet, 1.33 sq. ft., installed 3 ft 8 in below pole top.
Load Case 2:
- (1) top mount CCTV camera, 4 sq. ft., installed at 2 ft above pole top (additional height from camera mount assembly)
- (2) side mount CCTV cameras, 0.54 sq. ft. each, installed at 1 ft and 2 ft below pole top
- (2) NEMA Cabinets, 1.33 sq. ft. each, installed back to back at 3 ft 8 in below pole top.
- (2) radio equipment, 2.25 sq. ft. each, installed at 2 ft and 9 ft below pole top.
LED Luminaires
LED Roadway Luminaires are classified by their High Pressure Sodium (HPS) wattage equivalent, as described in Standard Specification 9-29.10(1)B (see Division 9 of the Standard Specifications). The lists provided here are separated by luminaire form type, such as cobra-head or wall mount. It is important that you refresh this page every time you visit to ensure that you are getting the most up to date versions of any posted lists.
Each list includes effective approval dates for each luminaire. Previously approved luminaires are included in the superseded list, with an expiration date once they have been superseded. Contracts that have already been awarded may use any luminaire that has been approved at the time of award, including any from the current approved list and any from the superseded list that have an expiration date after the date of contract award. Contractors should include a copy of the list that they are using as part of any material submittals, with the applicable part number(s) highlighted.
Approved LED Luminaires
Conventional Roadway (Cobra-Head) Type
WSDOT Approved Cobra-Head LED Luminaires (PDF 162KB); publication date 04/10/2023
WSDOT Superseded Cobra-Head LED Luminaires (PDF 189KB); for historical reference only
As of April 10, 2023, WSDOT rescinded approval for AEL ATB0 Series luminaires. Please see our letter explaining this rescinded approval here:
Wall Mount Type
WSDOT Approved Wall Mount Type LED Luminaires (PDF 28KB); publication date 02/18/2020
LED Luminaire Photometric Evaluation Criteria
To ensure that LED luminaires are interchangeable with both existing HPS inventory and future iterations of LED luminaires, LED Roadway Luminaires are categorized by Wattage Class. The criteria for evaluating and classifying LED luminaires, as well as copies of the AGi32 test grid files, are available here.
WSDOT Evaluation Criteria for LED Luminaires (PDF 111KB) Updated January 2021
WSDOT AGi32 Test Grids for Cobra-Head Type Luminaires (ZIP 2.32MB)
The AGi32 files provided here are for version 19 and later. Due to changes made by the software manufacturer starting with version 19, these files are not compatible with versions of AGi32 earlier than version 19.
Submitting a new LED luminaire for approval
To submit a new LED luminaire for approval, you must first make a request through the QPL System. Due to the amount of time needed for photometric and physical review and approval, new LED luminaires cannot be submitted as part of a construction contract - only pre-approved LED luminaires may be submitted.
Once the QPL process is started and an ID is provided, the photometric evaluation will be completed before any payments are requested. Do not send any payments until directed by the QPL Engineer.
Manufacturers and/or vendors submitting new LED luminaires through the QPL process for approval need to provide both of the following to complete the photometric evaluation:
- The test grid files with the luminaire(s) to be evaluated loaded and all calculations run.
- A results report as described in the evaluation criteria document.
WSDOT will re-run the AGi32 calculation files for verification. Once the photometrics have been verified to be run correctly and meet the required criteria, the submitter and the QPL Engineer will be notified and the QPL process will proceed to physical evaluation.
LED Luminaire wattage labels
Consistent with the LED wattage classification system, WSDOT uses a modified version of the standard ANSI/NEMA C136.15 label on LED luminaires. Details of this modified label are available here.
WSDOT ANSI/NEMA Labels for LED Luminaires (PDF 23KB)
Electrical and Communications Boxes and Vaults
Electrical and communications systems junction boxes (sometimes referred to as in ground "hand-holes") and utility vaults require an approved shop drawing for use in WSDOT systems. The following boxes and vaults have approved drawings on file with WSDOT and the applicable manufacturer for fabrication inspection and approval. Approved drawings do not need to be submitted as part of any material approval package - the following are used for approval:
- Standard boxes will be stamped as approved by WSDOT.
- Polymer concrete boxes are required to be stamped with the primary drawing number / part number as listed in the tables below.
Boxes and vaults are broken down into three basic groups - use the links below to jump to that group:
Standard Duty Junction Boxes (Type 1, Type 2, and Type 8)
Heavy Duty Junction Boxes (Type 4, Type 5, and Type 6)
Utility Vaults (Pull Boxes, Small Cable Vaults, and Cable Vaults)
Standard Duty Junction Boxes
Type 1 Junction Boxes
| Manufacturer | Drawing Number(s) | Approval Date | Note(s) |
|---|---|---|---|
| Armorcast | A6000424ASR-HDG | 3/13/2020 | Polymer concrete box; Slip-resistant lid |
| Armorcast | A6000424AD-HDG | 3/13/2020 | Polymer concrete box; Galvanized lid |
| Armorcast | A6000424AD-PB | 3/13/2020 | Polymer concrete box; Standard lid |
| Fogtite Incorporated | J-11 Type 1 L(ocking) | 8/11/2009 | |
| H2 Precast | Junction Box - Type 1 | 5/13/2020 | |
| Oldcastle Precast | 010-0650105-001 Rev. A | 12/6/2018 | Standard lid |
| Oldcastle Precast | 010-0650100-001 Rev. B | 3/29/2018 | Slip-Resistant lid |
| Quazite (Hubbell) | PC1318Z500-1 Rev. M | 2/5/2018 | Polymer concrete box; Slip-resistant lid |
| Quazite (Hubbell) | PC1318Z501-1 Rev. L | 2/5/2018 | Polymer concrete box; Standard lid |
| Quazite (Hubbell) | PC1318Z507-1 Rev. B | 2/5/2018 | Polymer concrete box; Galvanized lid |
| Cobalt | Cobalt 001 | 3/20/2017 | Security lid only |
Type 2 Junction Boxes
| Manufacturer | Drawing Number(s) | Approval Date | Note(s) |
|---|---|---|---|
| Armorcast | A6000425AD-HDG | 3/13/2020 | Polymer concrete box; Galvanized lid |
| Armorcast | A6000425ASR-HDG | 3/13/2020 | Polymer concrete box; Slip-resistant lid |
| Armorcast | A6000425AD-PB | 3/13/2020 | Polymer concrete box; Standard lid |
| Fogtite Incorporated | J-11 Type 2 L(ocking) | 8/20/2009 | |
| H2 Precast | Junction Box - Type 2 | 1/29/2021 | |
| Oldcastle Precast | 010-0650115-001 Rev. A | 12/6/2018 | Standard lid |
| Oldcastle Precast | 010-0650110-001 Rev. B | 3/29/2018 | Slip-resistant lid |
| Quazite (Hubbell) | PC1728Z500-1 Rev. M | 2/5/2018 | Polymer concrete box; Slip-resistant lid |
| Quazite (Hubbell) | PC1728Z501-1 Rev. L | 2/5/2018 | Polymer concrete box; Standard lid |
| Quazite (Hubbell) | PC1728Z507-1 Rev. B | 2/5/2018 | Polymer concrete box; Galvanized lid |
Type 8 Junction Boxes
| Manufacturer | Drawing Number(s) | Approval Date | Note(s) |
|---|---|---|---|
| Fogtite Incorporated | Type 8 J-Box | 10/3/2016 | |
| H2 Precast | Junction Box - Type 8 | 5/13/2020 | |
| Oldcastle Precast | 010-0650120-001 Rev. B | 3/20/2018 |
Heavy Duty Junction Boxes
Type 4 Junction Boxes
| Manufacturer | Drawing Number(s) | Approval Date | Note(s) |
|---|---|---|---|
| Fogtite Incorporated | J-11 Type 4 Heavy Duty | 8/16/2019 | Steel lid |
| H2 Precast | Type 4 J-Box | 3/26/2019 | Ductile iron lid |
| Oldcastle Precast | 010-S122374-001 Rev. D | 4/14/2015 | Ductile iron lid |
| Oldcastle Precast | CC-0404 Rev. I | 11/14/2016 | Steel lid |
Type 5 Junction Boxes
| Manufacturer | Drawing Number(s) | Approval Date | Note(s) |
|---|---|---|---|
| Fogtite Incorporated | J-11 Type 5 | 8/16/2019 | Steel lid |
| H2 Precast | Type 5 J-Box | 8/16/2019 | Ductile iron lid |
| Oldcastle Precast | 010-S122374-001 Rev. D | 4/14/2015 | Ductile iron lid |
| Oldcastle Precast | CC-0405 Rev. H | 11/14/2016 | Steel lid |
Type 6 Junction Boxes
| Manufacturer | Drawing Number(s) | Approval Date | Note(s) |
|---|---|---|---|
| Fogtite Incorporated | J-11 Type 6 | 8/16/2019 | Steel lid |
| H2 Precast | Type 6 J-Box | 8/16/2019 | Ductile iron lid |
| Oldcastle Precast | 010-S131633-002 | 4/18/2016 | Ductile iron lid |
| Oldcastle Precast | CC-0406 REv. G | 11/14/2016 | Steel lid |
Utility Vaults
Standard duty and heavy duty pull boxes and cable vaults are listed together because they use the same lower box with either a standard duty or a heavy duty lid. There are no heavy-duty small cable vaults due to the design of the vault lid (not a separate reinforced assembly).
Pull Boxes
| Manufacturer | Drawing Number(s) | Approval Date | Note(s) |
|---|---|---|---|
| Fogtite Incorporated | 233 Standard Duty | 2/16/2017 | Standard Duty |
| Fogtite Incorporated | Type 233 Pull Box (H35) | 8/7/2007 | Heavy Duty |
| Granite Precast | 2 x 3 WSDOT (HD) Electrical Vault | 1/31/2013 | Standard and Heavy Duty |
| H2 Precast | 233 Vault Base / 230-2436 Lid | 1/15/2020 | Standard Duty |
| H2 Precast | WSDOT 233 Vault Base / WSDOT 233 Lids | 3/26/2019 | Heavy Duty |
Small Cable Vaults
| Manufacturer | Drawing Number(s) | Approval Date | Note(s) |
|---|---|---|---|
| H2 Precast | 25TA Vault (WSDOT) | 12/15/2015 | |
| Oldcastle Precast | 010-X602410-001 Rev. E | 3/20/2018 |
Cable Vaults
| Manufacturer | Drawing Number(s) | Approval Date | Note(s) |
|---|---|---|---|
| Granite Precast | 6 x 4 WSDOT (HD) Electrical Vault | 4/23/2012 | Standard and Heavy Duty |
| H2 Precast | 465 Vault Base / 460-23 Lid | 10/29/2024 | Standard Duty |
| H2 Precast | 465 Vault Base / 460-02 Lid | 10/29/2024 | Heavy Duty |
| Oldcastle Precast | 010-X806410-001/-003 Rev. G | 2/24/2021 | Standard Duty (-001 closed bottom; -003 open bottom) |
| Oldcastle Precast | 010-X806410-002/-004 Rev. E | 7/30/2012 | Heavy Duty (-002 closed bottom; -004 open bottom) |
ITS Proprietary (Sole-Source) Equipment
Some equipment cannot be supplied through an open performance specification due to compatibility with existing software and equipment or similar issues. Where this is the case, proprietary approval for equipment in a specific application has been provided. This equipment is evaluated every two years at a minimum, with items that can be covered under an open performance specification moved from proprietary approval to QPL approval under the applicable standard(s).
The certification letter is available at the Design Guidance and Support page under the Proprietary Item Use section of the Tools, templates, and links tab.
ITS Proprietary Equipment List (Appendix A), effective 07/01/2023 (PDF 267 KB) (XLSX 38KB)
*Note: The XLSX file includes column filters.
166,800 electric vehicle
registrations in Washington in 2023, up from 114,600 in 2022.
87 wetland compensation sites
actively monitored on 918 acres in 2023.
25,000 safe animal crossings
in the Snoqualmie Pass East Project area since 2014.