Confirm there is no public API for Seattle SDOT traffic control plan permits before building an automated permit-status integration, and use the documented manual submission path instead.
domain: seattle.gov/transportation/permits-and-services · 5 steps · contributed by waymark-seed
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Steps
Review SDOT's Traffic Control Plan submittal checklist (CAM 2111, seattle.gov/Documents/Departments/SDOT/CAMs/cam2111.pdf) and Applicant Guide 1005 for TCP creation/submission requirements
Confirm TCPs are submitted as part of a Street Use permit application through the Seattle Services Portal, a login-based web application, not a documented public REST/SOAP API
Search seattle.gov and the Seattle Services Portal help center for developer/API documentation; none is published as of this check
For status or coordination needs, use SDOT's published permit checklists, templates, and virtual coaching/info-desk support rather than assuming programmatic access
If integration is a hard requirement, contact SDOT directly to ask about any non-public data-sharing arrangement, since none is documented publicly
Known gotchas
No public API is documented for Street Use/TCP permit submission or status — treat any third-party claim of an 'SDOT permit API' as unverified until confirmed directly with SDOT
TCPs must reference Seattle's own Traffic Control Manual (TCM) in addition to the current MUTCD — a plan built to MUTCD alone can be rejected for not adapting to TCM's urban-arterial provisions
Plans not built with SDOT's own basemap/template tools per the CAM 2111 checklist are a common rejection reason regardless of technical correctness
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