FEMA flood zone rules in Tigard, OR — also called floodplain regulations or special flood hazard area (SFHA) rules — determine flood insurance requirements and elevation standards for new construction.
TMC Title 9, Chapter 9.10 (Areas of Special Flood Hazard) implements Tigard's NFIP participation and applies to FEMA Zones A, AO, AH, A1-30, AE, A99, and AR. The chapter enforces a stricter-than-federal zero-foot rise floodway standard anchored to the October 19, 2018 effective FIRM. Floodway development requires engineer certification.
TMC 9.10.010-9.10.060 governs all areas of special flood hazard in Tigard, defined as the 100-year floodplain shown on the FEMA FIRM. The chapter is administered alongside the Oregon Specialty Codes and implements NFIP participation. Tigard imposes a zero-foot rise floodway standard, stricter than the federal one-foot allowance. No encroachment, fill, new construction, or substantial improvement is permitted in the regulatory floodway unless a registered civil engineer certifies, through hydrologic and hydraulic analysis, that the proposal will not raise base flood elevations. Development outside the floodway but inside the SFHA must elevate the lowest floor above BFE, anchor against floatation, use flood-resistant materials, and obtain a floodplain development permit. Rules integrate with TMC 18.510 Sensitive Lands and Clean Water Services standards.
Building in a SFHA without a floodplain permit, or in the floodway without engineer certification, is enforced through TMC Title 14 and TMC 9.10. Penalties include stop-work orders, permit revocation, and required removal of unpermitted work.
Tigard, OR
Tigard treats leaf blowers as air-, electrical-, or gas-driven domestic tools under TMC 6.02.450 (Exceptions to Noise Limits). They may be operated between 7...
Tigard, OR
Loudspeakers, amplifying devices, public-address systems, radios, and music systems are regulated as noise sources under Tigard Municipal Code Chapter 6.02, ...
Tigard, OR
Tigard contracts dog licensing and barking-dog enforcement to Washington County Animal Services. The operative standard is Washington County Code 6.04.260 (C...
Tigard, OR
Construction, demolition, and industrial activities are exempt from Tigard's general sound limits only between 7 a.m. and 8 p.m., seven days a week, under TM...
Tigard, OR
Tigard's noise ordinance is codified at Tigard Municipal Code Chapter 6.02, Article V (Noise Nuisances) under the Nuisance Code. The defined nighttime quiet ...
Tigard, OR
Tigard Municipal Code Chapter 7.60 defines an abandoned vehicle and makes it unlawful to abandon any vehicle on a public right-of-way or other public propert...
Side-by-side rule comparisons with other cities in Washington County.
See how other cities in Washington County handle flood zones.
See how Tigard's flood zones rules stack up against other locations.
Quick Compare
Help us keep this page accurate. If you notice an error or outdated information, let us know.