| DESIGN REQUIREMENTS
|
| Requirement |
Description |
Authority
CFR, RCW, WAC |
Additional Information |
MDL No. |
| Compliance with Americans with Disabilities Act requirements
|
ADA compliance in design of all future buildings (and facilities) for which Federal and Federal-aid funds are used.
|
23 CFR 625; 49 CFR 27.19
|
|
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| Conform to National ITS Architecture
|
(Applies only to ITS Projects)
|
23 CFR 940.5
|
|
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| Width of ROW
|
WSDOT shall acquire right of way with a width of 100 feet for state highways unless engineering or other considerations require a different width
|
RCW 47.28.020
|
|
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| Design standards for rearranged county roads, frontage roads, access roads, intersections, ramps and crossings
|
|
WAC 468-18-040
|
|
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| Policy on the construction, improvement and maintenance of intersections of state highways and city streets.
|
|
WAC 468-18-050
|
|
|
| Use State standards
|
"Federal-aid projects not on the NHS are to be designed, constructed, operated, and maintained in accordance with State laws, regulations, directives, safety standards, design standards, and construction standards." (Applies only to Federal-aid projects not on the NHS) Use State standards as approved by FHWA (Applies to non-freeway NHS RRR projects)
|
23 CFR 625.3 (a) (2); 23 CFR 625.4 (a)(3)
|
|
|
| Deviations from standards must be approved
|
|
23 CFR 625.3 (1) (f)
|
|
PE-D-26.03; CA-DO-02
|
| Comply with standards (incorporated by reference)
|
|
23 CFR 625.4
|
|
|
| Roadway and appurtenances standards
|
List of design standards incorporated by reference
|
23 CFR 625.4 (a); 23 CFR 650 subparts A & B; 23 CFR 772
|
|
PE-S-15; PE-D-19
|
| Procedures for Abatement of Highway Traffic Noise and Construction Noise
|
|
23 CFR 772; 23 CFR 625.4 (a) (6)
|
|
PE-S-15; PE-D-19
|
| Accommodation of Utilities
|
|
23 CFR 645 subpart B; 23 CFR 625.4 (a) (7)
|
|
PE-S-19; PE-D-23; CA-U
|
| Pavement Design
|
"Pavement shall be designed to accommodate current and predicted traffic needs in a safe, durable, and cost effective manner."
|
23 CFR 626; 23 CFR 625.4 (a) (8)
|
|
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| Bridges and structures standards
|
List of design standards incorporated by reference.
|
23 CFR 625.4 (b)
|
|
PE-D-21
|
| Navigational Clearances for Bridges
|
|
23 CFR part 650, subpart H; 23 CFR 625.4 (b) (11)
|
|
PE-D-21
|
| Materials standards
|
List of design standards incorporated by reference.
|
23 CFR 625.4 (c); 23 CFR part 635, subpart D
|
|
PE-S-09; PE-D-12
|
