Finding: 0 of the 40 checklist items maps to a numeric pass/fail threshold for an existing residential seawall in the five primary-source sets used to build the dataset. Eight items carry a design/serviceability figure or typical construction description.
Access: O = owner-safe land/dock observation. P = professional topside access, measurement, material identification, or interpretation may be needed. U = underwater access or instruments are needed. These are editorial access fields, not condition ratings.
| ID | Zone | What to look for | Source-linked context | Published figure | Access | Source ID |
|---|---|---|---|---|---|---|
| CTX-01 | Baseline and context | Visible wall type and material: concrete panel, vinyl or composite sheet, steel sheet, timber, rock revetment, mixed, or unknown. | Identifies which material-specific observations apply. The Holmes Beach municipal glossary describes a reinforced-concrete panel as 6 inches thick, 5 to 8 feet wide, and 10 to 16 feet long; those dimensions describe that manual’s common panel, not every residential seawall. | Reinforced-concrete panel described as 6 in thick, 5–8 ft wide, and 10–16 ft long. | O | S2;S3 |
| CTX-02 | Baseline and context | Fixed, repeatable endpoints and stations using panel joints, corners, fixed structures, or measured intervals. | Makes later observations traceable to the same physical location. The station system is an original documentation method in this dataset, not an official condition rating. | — | O | S1 |
| CTX-03 | Baseline and context | Water level or tide state, weather, visibility, and any recent storm, wake, vessel impact, dredging, excavation, or construction event. | Preserves the conditions under which waterside features were or were not visible. The InterNACHI waterfront SOP does not require an inspection to be scheduled for particular weather, seasonal, or tidal conditions. | — | O | S1;S4 |
| CTX-04 | Baseline and context | Prior permits, repair invoices, engineering reports, as-built drawings, and baseline photographs. | Provides design and repair history for comparison with current observations. Record absence does not prove that work was unpermitted, noncompliant, or defective. | — | O | S8;S11 |
| UPL-01 | Upland ground and hardscape | Sinkholes, open voids, or sudden depressions behind the wall. | The municipal manuals associate these features with backfill migrating through openings in or around the wall, often with a waterside deposit near a joint. | — | O | S2;S3 |
| UPL-02 | Upland ground and hardscape | Settlement, soft ground, or a grade change running parallel to the wall. | Can document a broader zone of soil loss or movement rather than a single isolated opening. Subsurface extent and cause remain unresolved without further assessment. | — | O | S1;S2 |
| UPL-03 | Upland ground and hardscape | New or widening cracks, settlement, or separation in a patio, pool deck, driveway, walkway, or slab near the wall. | Records movement reaching a used surface near the wall. The observation does not establish whether the hardscape crack is structural or whether the wall caused it. | — | O | S4;S2 |
| UPL-04 | Upland ground and hardscape | A mound of backfill in the water beside a joint, most visible when the water level is low. | The Holmes Beach and Marco Island manuals pair this waterside deposit with a landward sinkhole as evidence of material moving through a joint. | — | O | S2;S3 |
| UPL-05 | Upland ground and hardscape | Roof, yard, irrigation, or pool discharge directed toward the wall, or ponding behind it. | Documents additional water on the landward side, where drainage and pressure differential are part of seawall design and maintenance considerations. | — | O | S1;S2 |
| UPL-06 | Upland ground and hardscape | Vehicles, stored material, equipment, new fill, excavation, or large trees close to the wall. | Records added surcharge or disturbance near the wall. Whether the load exceeds the wall’s design capacity requires site-specific professional assessment. | — | O | S1;S2 |
| UPL-07 | Upland ground and hardscape | A debris or wrack line landward of the cap after a documented high-water event, together with photographs or event records that establish context. | Can support a record that water crossed the crest during the event. Debris alone can also be windblown and is not proof of overtopping without corroborating context. | — | O | S1;S4 |
| CAP-01 | Cap and alignment | Cracks in the cap, including cracks crossing its visible width or repeating at joints. | Records cap distress and change over time. ACI Table 4.1 supplies a service-load design guide for reinforced concrete in seawater exposure, not an existing-wall inspection limit. | 0.006 in (0.15 mm) for reinforced concrete exposed to seawater and seawater spray with wetting and drying. | O | S5;S2 |
| CAP-02 | Cap and alignment | Spalling, delamination, loose fragments, or missing cap material. | The municipal manual names cracking, spalling, exposed steel, and fractures as visible cap-failure symptoms; loose heavy material can also create an access hazard. | — | O | S2;S4 |
| CAP-03 | Cap and alignment | Rust staining, exposed reinforcing bar, or visible corrosion products. | The municipal manual associates these conditions with corrosion of embedded steel, while USACE identifies corrosion as the primary metal problem in brackish and salt water, especially in the splash zone. | — | O | S1;S2 |
| CAP-04 | Cap and alignment | Vertical offsets or step-offs between adjacent cap segments. | Documents differential movement or separation that can be compared at the same station over time. | — | O | S4;S2 |
| CAP-05 | Cap and alignment | Rotation, lean, bow, sag, or a wavy line when sighted along the wall. | Can accompany tieback distress or toe/berm movement. The Holmes Beach manual illustrates a back-leaning cap in a case where the toe moved outward; that example is not a universal diagnosis. | — | O/P | S2;S3 |
| CAP-06 | Cap and alignment | Separation between cap and panels, a loose cap section, or a detached section. | Documents loss of continuity at the top of the wall. The municipal manual explains that the cap ties panel tops together and provides an anchorage point for tiebacks. | — | O/P | S2;S3 |
| FAC-01 | Panels, joints, and waterline | Horizontal cracking with rust marks on panel faces near the waterline. | The municipal manuals identify horizontal cracking and rust staining near the waterline as visible waterline-failure symptoms. The ACI figure is a design serviceability guide, not an inspection threshold. | 0.006 in (0.15 mm), the same ACI service-load design guide used for CAP-01. | O | S5;S2;S3 |
| FAC-02 | Panels, joints, and waterline | A horizontal crack near mid-panel height, particularly when lower water exposes it. | A Holmes Beach photo caption describes mid-panel as the weakest point in the illustrated panel and associates the crack with hydrostatic pressure or tieback distress. It is a municipal example, not a universal engineering rule. | — | O | S2;S4 |
| FAC-03 | Panels, joints, and waterline | Separation at panel joints: a visible gap, soil bleeding through, or rock and sediment collecting at the joint base. | The municipal manuals associate these symptoms with backfill moving through an opened seam. | — | O | S2;S3 |
| FAC-04 | Panels, joints, and waterline | Vertical or diagonal cracking, or a split panel. | Records visible panel distress and its orientation, length, offset, and change. The visual pattern does not establish crack depth or remaining capacity. | — | O | S4;S2 |
| FAC-05 | Panels, joints, and waterline | Holes, punctures, impact damage, missing material, or a broken panel edge. | Documents a visible breach or localized impact condition and any associated sharp-edge or soil-loss hazard. | — | O | S4;S1 |
| FAC-06 | Panels, joints, and waterline | Material-specific deterioration: steel corrosion or pitting, timber decay or borer evidence, brittle cracking in vinyl or composite, or concrete surface loss. | USACE treats corrosion, timber deterioration, synthetic-material exposure, and abrasion as material-specific design and durability concerns. Remaining thickness or strength cannot be established visually. | — | O/P | S1 |
| FAC-07 | Panels, joints, and waterline | Condition of prior patches, joint seals, injection ports, overlays, or filter material placed at joints. | Records whether a prior repair is cracked, debonded, displaced, moving, or again allowing soil loss. It does not determine bond or performance below the visible surface. | — | O | S2;S3;S8 |
| FAC-08 | Panels, joints, and waterline | Wear or grooving where moving sediment repeatedly crosses the wall face, when that band is safely visible. | USACE describes abrasion where waves move sand or other sediment back and forth across a structure face. | — | O/P | S1 |
| DRN-01 | Drainage and penetrations | Visible weep holes or outlets above the waterline and whether their openings appear unobstructed from a safe vantage. | Weep holes provide drainage paths. USACE also states that steel sheet-pile weep and lifting holes should be backed by a proper filter to prevent loss of backfill. | — | O | S1;S2 |
| DRN-02 | Drainage and penetrations | Seepage that is cloudy or carrying soil rather than clear water. | Clear drainage can be an intended function; soil-laden discharge documents material transport through the wall or a joint. | — | O | S2;S3 |
| DRN-03 | Drainage and penetrations | Settlement, missing aggregate, ponding, or erosion along a French drain or gravel strip behind the wall. | The municipal glossary describes a common French-drain arrangement as a fabric-lined trench filled with crushed stone. That dimension is descriptive, not a test of an existing drain. | French drain described as a 2 ft × 2 ft trench. | O | S2;S3 |
| DRN-04 | Drainage and penetrations | Gaps, cracking, settlement, washout, or separation where a stormwater pipe or culvert passes through or near the wall. | The Holmes Beach manual identifies improper framing around a stormwater pipe in a waterline-failure example. Cape Coral’s repair guideline triggers Public Works review when a storm pipe is in the easement or crosses the property. | — | O | S2;S8;S4 |
| DRN-05 | Drainage and penetrations | Sprinkler heads throwing water at the wall, or roof and yard drainage discharging directly into the drainage strip. | Documents water being added where the drainage system is intended to relieve landward pressure and move water away. | — | O | S2;S3;S1 |
| TOE-01 | Toe, berm, ends, and waterside | Toe-out or kick-out: the base of the wall moving outward toward the water, when visible from a safe position. | The municipal manuals associate outward toe movement with loss of berm support, wave action, or insufficient original penetration. The cause and underwater profile require professional assessment. | — | P/U | S2;S3;S4 |
| TOE-02 | Toe, berm, ends, and waterside | A new or widening gap between the seawall and an attached dock. | The municipal manuals list this as a visible symptom associated with toe and berm movement because the wall and dock can move differently. | — | O | S2;S3 |
| TOE-03 | Toe, berm, ends, and waterside | Support pilings pressed tight against the panels or a changed wall-to-pile gap. | Can document the wall loading or moving toward the piles. The Holmes Beach manual illustrates an advanced case in which piles were retaining the toe; that example is not a conclusion for every close pile. | — | O | S2;S3 |
| TOE-04 | Toe, berm, ends, and waterside | Displaced riprap, an eroded apron, or exposed filter fabric. | Documents loss of visible toe protection. USACE gives a filter-grading design criterion and warns that untreated synthetic fabric exposed to heavy ultraviolet radiation can disintegrate within weeks. | Filter grading criterion d15(upper) / d85(under) < 4. | P/U | S1;S4 |
| TOE-05 | Toe, berm, ends, and waterside | Erosion traveling around a wall end, or an opening at the connection with an adjoining wall. | USACE calls end-around erosion flanking and explains that return sections are generally needed at wall ends. The observation does not establish property responsibility. | — | O | S1;S4;S2 |
| TOE-06 | Toe, berm, ends, and waterside | Visible undermining beneath the wall or exposed panel tips below the bottom, where documented by qualified underwater access. | USACE explains that toe scour reduces effective sheet-pile embedment and can lead to failure. Its apron dimensions are design criteria, not owner inspection thresholds. | Toe apron at least 2× incident wave height for sheet-pile walls, 1× for gravity walls, and at least 40% of water depth at the structure. | U | S1;S4 |
| ANC-01 | Anchorage and adjacent structures | Condition of a visible waler: cracking, displacement, corrosion, or loss of a tieback connection. | The municipal manual describes the waler as a horizontal waterside beam and documents a case in which rusted-through tieback rods left it unsupported. | Waler described as about 2 ft below the top of the wall. | O/P | S2;S3 |
| ANC-02 | Anchorage and adjacent structures | Any visible tie-back rod, through-rod, plate, nut, bolt, or anchor hardware showing corrosion, bending, looseness, fracture, or displacement. | The municipal manuals describe tiebacks and deadmen as part of the wall’s anchorage system. Buried portions cannot be cleared by this visual row. | Deadman described as about 15 ft back in the yard; helical retrofit tiebacks described as extending 14–21 ft into the ground. | P | S2;S3;S4 |
| ANC-03 | Anchorage and adjacent structures | Two different metals in direct contact at visible hardware connections. | USACE describes galvanic corrosion: the more active metal in the coupled pair acts as the anode and can corrode faster. | — | P | S1 |
| ANC-04 | Anchorage and adjacent structures | Movement or damage in a dock, deck, pool cage, fence, utility, or adjoining wall at the same station as a seawall symptom. | Records correlated distress without assigning a shared cause. The InterNACHI minimum waterfront SOP does not require inspection of adjoining or contiguous protective structures. | — | O | S2;S4 |
| inspection_id | inspection_date | property_or_asset_id | segment_id | item_id | objective_observation | photo_id | dimension_or_change | water_level_or_tide | weather_or_recent_event | prior_photo_comparison | access_limitations | follow_up_responsibility | follow_up_date | professional_report_reference |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
This printable file is a documentation aid, not a structural inspection, engineering rating, permit approval, or determination of safety, capacity, cause, repair scope, or remaining service life. Full methodology, limitations, local official-reference table, and source URLs: https://seawallrepaircapecoral.net/research/seawall-inspection-checklist/