Concrete curbing in 97138 covers Seaside, the Clatsop County tourism hub between Cannon Beach and Astoria on US-101. Seaside is the most commercially active town on the north Tillamook-Clatsop coast -- the Promenade, downtown Broadway, the US-101 hotel and motel corridor, the convention center, and the residential neighborhoods that support a population that swells significantly through the summer season. Curbing work in this zip is dominated by commercial property -- ADA-compliance upgrades, drainage curb for stormwater management, parking-lot perimeter curb for retail and hotel lots, and the occasional larger civic-adjacent scope. We run 97138 work as part of Clatsop County dispatch.
What 97138 Curbing Jobs Actually Look Like
Seaside commercial curbing scopes are mostly retail, hotel, and convention-center-adjacent work. A typical scope includes 100 to 500 linear feet of parking-lot perimeter curb, 6 to 20 ADA curb-cut ramps with detectable warning tiles, and drainage curb that ties into the city stormwater system. Hotel and motel corridor work along Broadway and US-101 frontage tends to be larger -- 300 to 1,200 linear feet of perimeter and parking-stall curb, plus the ADA elements. Residential curbing is a smaller share but real, especially on the upper-end residential near the convention center and the south Seaside neighborhoods.
Our standard spec for 97138 commercial curbing is a 6-inch base of compacted 3/4-minus crushed rock, continuous extrusion at 6 to 8 inches wide for parking-stall perimeter, and 8-inch tall keyed curb where the lot edge needs to retain water against landscape or where vehicle wheel contact is expected. ADA curb cuts use cast-in-place reinforced concrete with detectable warning tiles set per spec. Drainage curb in 97138 typically ties into the City of Seaside stormwater system through approved exit points.
Salt Air, Sand, and the Seaside Concrete Spec
The 97138 footprint is at sea level on the immediate Pacific coast. Salt air is constant, wind-driven sand settles on every surface, and chronic humidity from the river-mouth and Pacific exposure keeps concrete surfaces damp for hours after rain stops. All three factors matter for concrete curbing. Salt accelerates chloride-driven corrosion of any reinforcing steel in the concrete, sand on the surface during pour-and-finish can show in the finished texture, and slow surface drying lengthens cure schedules during off-peak months.
Our practice on Seaside curbing is to spec air-entrained concrete (typically 5 to 7 percent air content) for freeze-thaw and salt resistance, and to use stainless or epoxy-coated rebar where steel reinforcement is required. Air-entrained concrete is the right mix for any pour within roughly a quarter mile of the Pacific. We also coordinate with the City of Seaside for any work that touches the Promenade or downtown public right-of-way -- those areas have specific concrete-finish and color-matching specifications that have to be met for permit approval.
Industry Cost Picture for 97138 Concrete Curbing
Curbing cost in 97138 sits at the upper end of the rural-and-small-town Oregon range. Seaside has full commercial demand and the work is generally larger-scope than the surrounding rural zips, but coastal-spec materials and mobilization carry premiums.
Industry Baseline Range
| Project Type | Cost Per Linear Foot | Typical Total |
|---|---|---|
| Standard extruded curb (4 in) | $8 to $14 | $800 to $7,000 |
| Drainage curb (6 in, keyed) | $10 to $17 | $2,500 to $12,000 |
| Tall commercial curb (8 in) | $12 to $20 | $3,500 to $18,000 |
| ADA curb cut + ramp + tile | $500 to $1,500 each | -- |
| Decorative stamped or colored curb | $14 to $24 | $2,500 to $15,000 |
Current Market Reality
Concrete prices on the north Oregon coast have moved up sharply since 2022. Ready-mix delivery from Astoria and the surrounding plants carries a meaningful surcharge over Portland-area pricing, cement and aggregate costs are up, and ADA-spec hardware has climbed. A linear foot of standard extruded curb that the baseline puts at $10 is more likely $13 to $17 in 97138 today. ADA curb cuts and ramps almost always exceed baseline because of accessibility-tile and reinforcement spec demands. We will not quote Seaside commercial curbing by phone -- scope, ADA touchpoints, and city right-of-way considerations all need a site visit. For broader coastal context, see our Seaside sealcoating coverage.
Climate, Permits, and the Seaside Concrete Pour Window
The 97138 pour window for concrete runs from April through October for full-confidence work. Concrete needs ambient temperatures above 40 degrees F at pour and through the first 24 to 48 hours of cure, ideally above 50 degrees F. Coastal humidity and overnight fog can slow cure even within the window, so we plan pour schedules around the 5-day forecast. Air-entrained mixes used for Seaside coastal exposure cure slightly slower than non-entrained mixes, which is also factored into the schedule.
Permits in 97138 are city-driven. The City of Seaside reviews any work in the public right-of-way, including driveway approach cuts, Promenade-adjacent work, and ADA upgrades on accessible routes. ODOT Region 2 reviews any encroachment on US-101 right-of-way. Stormwater coordination applies on impervious-area changes above local thresholds. We handle permit paperwork as part of scope. For excavation work that pairs with curbing -- grading, base prep, drainage cuts -- see our Clatsop County excavation coverage.
How To Hire For This Zip
Three questions for any 97138 curbing bidder. First: are you specifying air-entrained concrete for coastal exposure, and what is your air-content target? Second: are ADA curb cuts, ramps, and detectable warning tiles broken out as line items, or buried in the per-foot rate? Third: do you have City of Seaside right-of-way and Promenade-adjacent work experience, and have you confirmed the city-spec finish requirements? A bidder who shrugs on any of those is pricing this like a non-coastal job and will hit surprises during the work.
Cojo runs Clatsop County concrete out of the same equipment yard that covers Hood River and the Gorge. Our concrete service profile lives at our concrete work. Paving and striping that often pair with curbing on the same property are covered in Seaside striping.
Ready to get a 97138 hotel lot, downtown retail, ADA upgrade, or Promenade-adjacent curb project priced? Schedule a free site visit. We will walk the property, mark curb lines, identify ADA upgrade scope, confirm city right-of-way requirements, and write a real quote.