Elevation Certificates in Gridley, CA

We prepare FEMA elevation certificates in Gridley and the surrounding part of southern Butte County, for homeowners, buyers, lenders, and anyone building in a mapped flood zone.

Elevation certificates from $1,000 · (510) 543-2220

Elevation Certificates in Gridley: Local Conditions

Gridley is a Highway 99 farm town in southern Butte County, about 29 miles south of Chico. It is one of the member cities of the Sutter Butte Flood Control Agency, which was set up in 2007 to plan and pay for levee repairs in the Sutter-Butte basin. The agency's Feather River West Levee Project starts at the Thermalito Afterbay and runs south through the basin, and it was designed to give Gridley, Biggs, Live Oak, and most of Yuba City 200-year protection. Over 80 percent of the repairs were slurry walls that cut off seepage through and under the levee.

Gridley also sits downstream of Oroville Dam. In February 2017, when damage to the dam's main and emergency spillways raised fears that the emergency spillway weir would fail, evacuation was ordered for low-lying areas along the Feather River in Butte, Yuba, and Sutter counties, and about 188,000 people left their homes. Nothing failed, but it reminded many owners that their flood insurance and flood zone paperwork mattered. The current zone for any Gridley parcel is on the FEMA Flood Map Service Center. FEMA has also been revising flood maps in Butte County, with preliminary FIRMs dated May 30, 2025. Local reporting said the zone changes from that study are concentrated in north Chico, but it is worth checking whether your panel is part of any pending revision.

For a flood elevation certificate we tie to a benchmark on the FIRM's vertical datum, measure lowest and highest adjacent grade, the lowest floor and garage, crawlspace and flood vents, and machinery such as HVAC units and water heaters, photograph the building, and deliver a signed FEMA EC. When the survey shows the structure at or above the Base Flood Elevation but mapped in a Special Flood Hazard Area, we can prepare a LOMA and file through eLOMA where eligible. Gridley is a mobilization from our Lotus base, so we plan the trip in advance and often pair it with Yuba-Sutter or Oroville work. See our elevation certificate service and the pages for Oroville and Live Oak.

Full service details, process, and deliverables: FEMA Elevation Certificates & LOMA

What's Included

Signed and sealed by a California Professional Land Surveyor
Completed on FEMA Form FF-206-FY-22-152, with the required photographs
Elevations tied to a published benchmark on the flood map’s vertical datum
eLOMA submission as a licensed professional when the building qualifies
Construction-stage ECs for permits: construction drawings, building under construction, and finished construction
Sacramento region, Central Valley, Delta, and Bay Area

Our Process

Address & Flood Map Check

Send the address and the reason you need the certificate: lender letter, insurance quote, building permit, or a LOMA. We pull the effective FIRM panel, flood zone, and Base Flood Elevation before quoting, and tell you up front if a LOMA looks possible.

Benchmark Tie

We tie the site to a published benchmark on the vertical datum the flood map uses, with GNSS and a total station. Every elevation on the certificate is measured from that tie, not estimated from a contour map.

Building Measurement

We measure the top of the bottom floor, the next higher floor, the garage slab, the lowest and highest adjacent grade, the lowest machinery and equipment, and the flood openings, and take the photographs the form requires.

Signed EC, and the LOMA if It Qualifies

You receive the completed, signed Elevation Certificate as a PDF. If the lowest adjacent grade is at or above the Base Flood Elevation, we prepare the LOMA request and submit it to FEMA, through eLOMA when the building meets its criteria.

Elevation Certificates in Gridley: FAQ

FEMA issued preliminary FIRMs for Butte County and the City of Chico dated May 30, 2025. Reporting on the release said the zone changes are concentrated around Rock Creek and Keefer Slough north of Chico. Check the Flood Map Service Center or ask Butte County Public Works whether your Gridley panel is affected before relying on an older map.

Start with an elevation certificate. If the lowest ground touching the house is at or above the Base Flood Elevation, the house may qualify for a Letter of Map Amendment, which removes the federal flood insurance requirement for that structure. FEMA charges no fee for a LOMA review. If the house is below the BFE, the EC still documents its true elevations.

Yes. We schedule Gridley, Biggs, and the farm parcels around them as one trip when we can. Each structure gets its own certificate, and rural parcels often need a longer benchmark tie, which we plan for before we drive up.

Need Elevation Certificates in Gridley?

Elevation certificates start at $1,000. Call (510) 543-2220 with the Gridley address and we'll check the flood map and give you a fixed price.

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Private licensed surveyor, not affiliated with FEMA • Homeowners welcome • Response within 24 hours

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