Gresham's hospital footprint anchors on Legacy Mt Hood Medical Center on Stark Street, with Adventist Health East Portland (adjacent to the outer-east service area) adding the broader medical-district presence. Each campus carries its own ambulance-access lane, ADA path-of-travel network, and patient-flow pattern. Outer-east Multnomah climate adds freeze-thaw pressure on aging ramp slopes that inner-Portland campuses do not face. This article walks through what facilities directors and patient access services leads at Gresham-area hospital campuses should expect on scope, scheduling, and cost for ADA curb-ramp installation.
ADA 2010 Section 502: The Hard Standard
ADA 2010 Standards for Accessible Design Section 502 governs accessible parking and the access aisle. For hospital campuses, the binding parts are:
- Minimum stall counts: 1 van-accessible per 6 accessible stalls (with at least 1 van-accessible per lot).
- Access aisle width: 5 feet for car-accessible, 8 feet for van-accessible.
- Stall and access aisle slope: 1:48 max in any direction (roughly 2 percent grade).
- Curb-ramp slope: 1:12 max (roughly 8.33 percent) on the ramp run.
- Detectable warning surface: per Section 406, on the ramp transition to the vehicle-way.
Legacy Mt Hood Medical Center's facilities planning team carries an ADA self-evaluation that lists every non-compliant ramp and stall on the campus, prioritized by patient-traffic exposure. Adventist Health runs its own ADA self-evaluation for its east-Portland campus. For design background, see our ADA curb-ramp slope reference.
Outer-East Freeze-Thaw Pressure on Existing Ramp Slopes
Gresham sits at the edge of the outer-east elevation lift, and winter overnight lows drop into the harder freeze zone more often than inner-Portland. Existing ADA ramps installed 20 to 30 years ago on shallow base prep often have slope drift driven by freeze-thaw heave: a ramp that was poured at 1:12 might now read 1:9 or worse because the base has lifted unevenly. Replacement scope on aging Gresham hospital ramps typically requires deeper base prep (12 to 18 inches of compacted aggregate) and proper drainage capture to prevent re-heave. For broader Gresham paving climate context, our Gresham fleet-yard paving coverage walks through the parallel outer-east wear pattern.
FGI Guidelines and the Health-Facility Overlay
The Facility Guidelines Institute (FGI) Guidelines for Design and Construction of Hospitals are the binding healthcare-facility standard adopted by reference in Oregon hospital construction code. The FGI Guidelines layer additional requirements on top of ADA: minimum unobstructed pedestrian path widths through ambulance-access zones, lighting standards on accessible routes, and ramp-protection details where vehicle traffic conflicts with pedestrian flow. A standard commercial ADA ramp does not always meet FGI Guidelines; a hospital ramp does.
Ambulance-Access Lane Preservation
The single hardest constraint on Gresham hospital ADA work is the ambulance-access lane. Every ED entrance has a designated ambulance-access lane that has to stay operational 24/7. Legacy Mt Hood Medical Center's ED entrance off Stark Street is the primary outer-east Multnomah County emergency department. ADA curb-ramp work on or near those lanes happens in night-shift work windows (usually 10pm to 6am) with phased lane closures and active traffic management. The hospital security or facilities team coordinates each phase with EMS dispatch.
Patient-Flow Continuity and Construction Phasing
Hospital campuses run on continuous patient flow. The standard phasing playbook:
- Map every ADA path-of-travel through the affected zone.
- Designate a temporary ADA-compliant alternate route before any construction starts.
- Post wayfinding signage in English and Spanish (and other languages as the campus patient demographic requires).
- Coordinate with patient transport, valet, and shuttle services on the new route.
- Run the construction in 2-to-4-day phases with full restoration at the end of each phase.
The temporary alternate route has to meet ADA Section 502 compliance on its own. That sometimes means installing a temporary modular ramp as part of the project mobilization. Our Gresham university striping coverage walks through the parallel campus-coordination pattern at MHCC.
Industry Baseline Range for Gresham Hospital ADA Curb-Ramp Work
Pricing depends on ramp complexity (single, perpendicular, parallel, combination), detectable warning surface type, drainage tie-in, base-prep depth for freeze-thaw protection, and night-shift premium.
Industry Baseline Range
| Scope | Cost Per Ramp | Typical Cluster Total |
|---|---|---|
| Single ADA curb ramp (standard) | $2,500 to $5,500 | $2,500 to $5,500 |
| Perpendicular ramp with truncated dome panels | $3,000 to $6,500 | $3,000 to $6,500 |
| Combination ramp (corner radius) | $4,500 to $9,000+ | $4,500 to $9,000+ |
| Full ED-entrance ADA path with drainage tie-in | $9,000 to $25,000+ | $9,000 to $25,000+ |
| Night-shift premium | +20 to +40 percent | varies |
Current Market Reality
Gresham hospital ADA curb-ramp work in 2026 trends toward the upper portion of the published baseline. Concrete and truncated-dome-panel material costs rose roughly 20 percent through 2024-2025. Night-shift premium and after-hours coordination add 20 to 40 percent to a daytime baseline. The outer-east wet-season pattern compresses the workable construction window. A standard perpendicular ADA ramp with truncated dome panels at the Legacy Mt Hood ED that bid at $3,800 in 2019 commonly bids at $5,200 to $6,200 today. For broader cost context that stacks with the ADA ramp line, see our Oregon asphalt cost benchmarks.
Detectable Warning Surfaces (Section 406)
ADA 2010 Section 406 requires a detectable warning surface (typically a truncated-dome panel) at the ramp-to-vehicle-way transition. Cast-in-place panels survive Gresham's freeze-thaw cycle better than surface-applied panels because the bond fails first on the surface-applied product after repeated freeze cycles. Most Legacy and Adventist Health campuses default to cast-in-place for new installations.
Procurement and Scheduling
Legacy Health and Adventist Health both run their own private procurement processes. Schedule the work for the dry season (May through October). For broader concrete-service scope, see our concrete services page.
Talk to Cojo About Your Gresham Hospital ADA Project
If you are a facilities director, patient access services lead, or capital projects manager at Legacy Mt Hood Medical Center, Adventist Health East Portland, or another outer-east hospital campus, the next step is a campus walk and a scoping conversation. We will log each non-compliant ramp from the ADA self-evaluation, sequence the work to preserve patient flow and ambulance access, and price the scope against your capital cycle. To get the conversation started, start a Gresham hospital ADA scope and we will be on site within the week.