Contractor insurance in The Dalles and Hood River.

The Dalles is inside the National Scenic Area boundary and exempt from Gorge Commission land use ordinances as a federally designated Urban Area. A few miles west, Rowena sits in a Special Management Area where development must be not visually evident, in dark earth tones, with non-reflective materials, kept below the tree canopy. Same county, same drive, completely different rules about what you are allowed to build with.

Who this page is for

Contractors working The Dalles, Mosier, Rowena and unincorporated Wasco County. The single most valuable thing on this page is the boundary question, because the difference between a job inside the city and a job a few miles west is the difference between ordinary permitting and federal scenic area review.

What this page covers. The Dalles, Hood River, Mosier and the Oregon side of the Columbia Gorge, across Wasco and Hood River counties. Scenic area rules and wind exposure both change within this market, which is what the page is mostly about.

Inside the Gorge boundary, outside the Gorge rules

The Dalles sits inside the mapped boundary of the Columbia River Gorge National Scenic Area, and is also a federally designated Urban Area within it. Urban Areas are exempt from the Gorge Commission's land use ordinances.

In practice that means a project inside The Dalles city limits goes through normal city permitting, not scenic area review. Contractors who hear "Gorge" and assume a design review process for a job downtown are wrong, and the mistake costs them competitively because they price in review time nobody needs.

The reverse mistake is far more expensive. Step outside the urban growth boundary into unincorporated Wasco County and scenic area review applies. A few miles west, Rowena sits inside a designated Special Management Area, the most protected tier, where development standards require that new structures be not visually evident from key viewing areas, using a rustic appearance with natural materials, dark earth-tone colours, non-reflective materials, and structures kept below the tree canopy and off bluffs and skylines.

Those are real, enforceable constraints on your material and colour selections, and they are not something you can value-engineer around after the bid. Mosier, also in Wasco County, is a separate designated Urban Area like The Dalles. So within one county you can have three different regimes: city Urban Area, general scenic area, and Special Management Area.

The wind number changes with exposure, not just the county

The Gorge has a reputation as a wind corridor, and the code reflects it, but not in the way most people assume.

So a typical site in town designs to roughly 99 mph for Risk Category II, while a site with full unobstructed exposure to Gorge winds jumps to 120 mph, and higher for essential facilities. That is a real, code-driven difference on the same county, decided by the exposure at the specific site.

Two things follow. This is not the coastal special wind region, so do not carry coastal figures over to the Gorge. And exposure is site-specific, so a bluff-top or river-facing parcel and a sheltered downtown lot are different engineering problems even a mile apart. Verify per site rather than per county.

No business licence, which makes The Dalles unusual

The Dalles does not require a general business licence. The city's own business siting guidance states there are no local licences required, and the specific licence types it does issue, things like liquor, secondhand dealers and mobile food vendors, do not reach general contracting.

City-level taxes are limited to a motor vehicle fuel tax and a transient room tax. There is no gross receipts tax on contractors.

That is worth stating plainly because it is the opposite of Hermiston, three hours east, where a 2025 ordinance reaches even out-of-town subs. Contractors working both markets need to keep them straight.

Permitting, and a county arrangement worth knowing

Inside city limits, the City of The Dalles Community Development Department handles building, planning, zoning, floodplain and historic landmarks permits.

For unincorporated Wasco County, Wasco County Building Codes Services runs the building permit and inspection program, and under an interlocal arrangement it effectively serves the county's jurisdictions broadly, while the county Planning Division handles land use separately. If your project sits outside the city, expect building permits and land use review to come from two different desks, and in scenic area territory land use is where the design constraints live.

Google, water, and what it means for local construction

Google opened its first company-owned data centre in The Dalles in 2006 and has continued expanding, with buildings completed in 2025 and another targeted for 2026. Google reports investment in Oregon above $7 billion since 2006. That makes data centre construction and its supporting trades a durable part of the local market.

The water story is the part contractors should understand, because it drives infrastructure work. In 2021 Google agreed to fund roughly $28.5 million in city water infrastructure in exchange for long-term tax treatment and guaranteed supply, and completed and transferred about $28 million of aquifer storage and recovery infrastructure to the city in October 2025. Google's data centres grew from around a tenth of city water use in 2012 to roughly a third, about 434 million gallons, in 2024.

There is also a live federal proposal to convey national forest land to expand the city's reservoir capacity roughly threefold. If it proceeds, that is significant municipal infrastructure work.

For coverage purposes, treat data centre and municipal water work the way you would any large industrial or public project: expect higher limits with an umbrella, additional insured on completed operations that is genuinely endorsed, possible wrap-up enrollment, and owner terms that flow down through every subcontract tier.

Historic districts and a flood map that just changed

The Dalles has a National Register commercial historic district with dozens of contributing buildings, plus a second residential district. Under the municipal code, exterior alteration or demolition in those districts requires Historic Landmarks Commission review before permits issue. If you do exterior work downtown, that review is in your schedule whether or not you planned for it.

Separately, the city adopted a new floodplain code effective August 1, 2025 while working through a FEMA flood map revision, with mapping that had not been meaningfully updated since the 1980s. Some downtown parcels are newly flagged under the revised modelling. Check the current map for the specific parcel rather than relying on what you remember, because the answer changed recently.

The market, in numbers

The Dalles sits at roughly 15,700 people in a Wasco County of about 26,300. It is a small market with an outsized industrial anchor, which produces a two-speed dynamic: steady small residential and commercial work, punctuated by large industrial and municipal projects with requirements written for much larger contractors.

The city has also been working through a development code overhaul to allow more middle housing types, which over time changes what is buildable on residential parcels.

Questions worth asking before you bid in Wasco County

• Is this address inside The Dalles city limits, or outside the urban growth boundary and into scenic area review?
• If it is scenic area, is it a Special Management Area with prescribed materials and colours?
• What is the wind exposure at this specific site, 99 mph or full Exposure D?
• Is this in a historic district requiring Landmarks Commission review before permits?
• Has the parcel changed status under the 2025 floodplain code and the FEMA revision?
• If this is data centre or municipal work, are my endorsements and limits at the industrial standard?