Forensic Engineer in Tampa Bay

Tampa Bay is Florida’s largest open-water estuary, averaging only about 11 feet deep. Tampa, in Hillsborough County, sits at its north end; the Pinellas peninsula, with St. Petersburg and Clearwater, lies to the west; Pasco County lies to the north. Manatee and Hernando counties border the region to the south and north.

That geography shapes investigations. On low coastal land, wind and water often arrive together; inland, the ground itself can move. One building can show distress from several sources, and the first task is to separate them using physical evidence, not assumptions.

Florida is underlain by limestone and dolostone that slightly acidic groundwater slowly dissolves, leaving cavities that can lead to sinkholes. Around Tampa Bay the limestone lies relatively close to the surface, under sands with varying amounts of clay. Hernando, Pasco and Hillsborough counties are often called “Sinkhole Alley”: in 2010 the Florida Office of Insurance Regulation reported that 66% of the sinkhole claims in its 2006–2009 data came from those three counties.

Sections 627.706 through 627.7074, Florida Statutes, treat sinkhole losses separately. They require property insurers to cover catastrophic ground cover collapse and to offer sinkhole coverage for an additional premium, set testing and reporting standards for professional engineers and geologists, and provide a nonbinding neutral evaluation that either party may request after a sinkhole report is issued or a sinkhole claim is denied. Under section 627.7073, the findings of the insurer’s professional engineer or geologist on the cause of distress, and of the insurer’s professional engineer on stabilization and foundation repair, “shall be presumed correct.” Notice of a sinkhole claim is generally due within two years after the policyholder knew or reasonably should have known of the loss (section 627.706(5)).

How these provisions apply to a given claim is a legal question; confirm the current requirements with your insurer or attorney. The engineering question is narrower: what is causing the distress? Cracking in block walls, stucco, slabs and tile can also come from shrinkage, thermal movement, poorly compacted or organic soils, or plumbing leaks. An independent investigation documents the damage pattern and its progression and weighs them with any geotechnical testing before an opinion is formed.

Since March 1, 2002, construction in Florida has been governed by the statewide Florida Building Code, which is updated periodically. It maps ultimate design wind speeds by building risk category, and each county fixes the exact position of its wind speed lines by local ordinance.

The code also defines a wind-borne debris region within the hurricane-prone region. In recent editions it has included areas where the ultimate design wind speed is 140 mph or greater, and areas within one mile of the coastal mean high-water line where that speed is 130 mph or greater and certain exposure conditions apply. There, exterior glazed openings generally must be protected against wind-borne debris. Whether a property lies inside the region depends on its location and risk category; the local building department can confirm it.

The key question is often which requirements applied when the building was permitted or last re-roofed: a house built before the statewide code and one permitted under a recent edition were designed to different criteria.

Many Tampa Bay homes have concrete block walls finished with stucco; wood-frame construction, alone or combined with masonry, is also common. Roofs are typically asphalt shingle, concrete or clay tile, or metal, over wood trusses or rafters and wood sheathing.

Each system records damage differently: crack patterns in block and stucco; creased, lifted or missing shingles; cracked tiles and damaged underlayment beneath a roof that looks intact from the ground; a moisture history in wood framing and sheathing. Reading that evidence starts with how the assembly was built.

Between 2022 and 2024, four hurricanes affected Tampa Bay in different ways, according to National Hurricane Center reports:

• Ian (September 2022) made landfall at Cayo Costa, south of the region. Offshore winds drew water out of Tampa Bay, while heavy rain north of the track sent the Peace, Myakka and Alafia rivers to record crests.
• Idalia (August 2023) made landfall near Keaton Beach in the Big Bend, yet produced 3 to 5 feet of storm surge inundation from Chassahowitzka to Englewood, including Tampa Bay.
• Helene (September 2024) made landfall near Perry, also in the Big Bend. Inundation within Tampa Bay reached 5 to 7 feet above ground; the St. Petersburg tide gauge, with records since 1947, measured its highest water level.
• Milton (October 2024) made landfall on Siesta Key about two weeks later. Surge inside the bay was about 1 to 2 feet, but wind and rain were damaging: 20.40 inches was reported near St. Petersburg, and the Hillsborough River reached record crests.

The Hurricane Center noted that the area most affected by Milton had also been affected by Helene two weeks before, which complicates damage assessments. Separating surge from wind, and one event from another, is central to many local investigations and relies on water lines, debris and sediment deposits, the direction of failures and the timeline of conditions.

Each assignment is scoped to the questions in dispute. An investigation may examine:

• Wind versus surge or flood. Water lines, debris and sediment deposits, and the damage pattern inside and outside, to distinguish wind damage from rising-water damage.
• Roof uplift. Lifted or missing shingles and tiles, the condition of sheathing and fasteners, and roof-to-wall connections.
• Water intrusion. The path water took into the building (openings, roof, walls or plumbing) and whether the intrusion was sudden or long-term.
• Settlement and cracking. Crack patterns in slabs, block walls and stucco, floor levelness, and the alignment of doors and windows.
• Sinkhole-related distress. Whether the damage is consistent with sinkhole activity or another cause, considered with any geotechnical testing already performed.

Opinions are formed only after examination of the available physical evidence and are stated to a reasonable degree of engineering certainty. Every investigation is documented with findings, photographs and field notes, and that record is kept in the project file or delivered to the client, as the engagement requires. When an assignment calls for a written report (for example, for litigation, because a carrier or an attorney requires one, or at the client’s request), the report is signed, dated and sealed by a Florida-licensed Professional Engineer. The investigation addresses the engineering cause and extent of damage; it does not determine coverage, value a loss or adjust a claim.

To request an inspection, use the contact form. Include the property’s city and county, the type and date of loss, your role and any deadlines. Please keep the first message general and do not send privileged or confidential documents.

Anna replies to inquiries within 48 hours; that reply is a first response, not the date of an inspection. Before accepting a matter, she completes a conflict-of-interest check. If an investigation is appropriate, its scope is confirmed in a written agreement signed by both parties, and the site visit is then scheduled promptly, on a weekend if the matter calls for it. The work is carried out efficiently without compromising thoroughness. Properties elsewhere in Florida are covered on the service area page.

Related services: forensic investigation, hurricane and disaster property loss, loss documentation, forensic engineering reports and expert witness services.