Seawall & Bulkhead Inspection Logger
Coastal/lakefront wall walkdown — cap, face, toe scour, weeps, anchors, backfill loss and overtopping signs; offline GPS log.
New seawall reach inspection
Annual walkdowns at low tide plus after major storms; structural assessments on 5-year cycles for aging walls.
Field guide: Seawall & Bulkhead Inspection Logger
Seawalls fail backwards: the visible face usually outlives the invisible systems — toe support, backfill, and anchors. The diagnostic trio this logger emphasizes: sinkholes behind the cap (soil is leaving through somewhere), weep holes discharging muddy water (that's the somewhere), and a scour trench at the toe (the wall is being un-founded from below). Any of the three earns the engineer-review class regardless of how straight the wall stands today.
Anchored bulkheads add a hidden dependency — tie rods corrode at the waterline of their own buried world, and the first surface sign is often a wale pulling away or a subtle outward bow between anchor points. Low tide is the inspection window for the face and toe; after storms is the mandatory re-check, when one event can relocate toe stone and open the cavities that next year's sinkhole will report.
Field tips
- Time inspections to the lowest tides of the season — the toe tells the story and it's only visible a few hours a month.
- Probe behind the cap near any crack: a rod sliding into a void converts 'cosmetic crack' into 'active fill loss' on the spot.
- Muddy weep discharge after dry weather is fines loss, not drainage — photograph it; it's the cheapest early warning you'll get.
Records are stored only in this browser (localStorage) — export regularly. This tool aids field documentation; it does not replace your agency's official inspection procedures or engineering judgment.
Seawall & Bulkhead Inspection Logger — Coastal/lakefront wall walkdown — cap, face, toe scour, weeps, anchors, backfill loss and overtopping signs; offline GPS log. Free, offline-first and GPS-aware: open it on any phone, log in seconds, and hand your GIS team clean GeoJSON.
About Seawall & Bulkhead Inspection Logger
Seawalls fail backwards: the visible face usually outlives the invisible systems — toe support, backfill, and anchors. The diagnostic trio this logger emphasizes: sinkholes behind the cap (soil is leaving through somewhere), weep holes discharging muddy water (that's the somewhere), and a scour trench at the toe (the wall is being un-founded from below). Any of the three earns the engineer-review class regardless of how straight the wall stands today.
How to use Seawall & Bulkhead Inspection Logger
- 1Enter the wall & station and tap 📍 GPS to pin the seawall reach's exact location (or type coordinates).
- 2Work through the seawall reach checklist — every field matches what a real inspection program records.
- 3Pick a condition on the Stable / Monitor / Distress — engineer / Failure progressing ⚠ scale; actionable findings are tallied automatically.
- 4Add notes and log the inspection — it saves instantly to your device, even with zero signal.
- 5Export the round as CSV for your asset system, GeoJSON for the GIS, or print a clean report.
Why use Seawall & Bulkhead Inspection Logger?
- ✓100% free, no sign-up — built for crews, not per-seat licences
- ✓Offline-first: records save to your device instantly and survive dead zones
- ✓One-tap GPS tagging with accuracy capture on every record
- ✓Exports CSV for asset systems, GeoJSON for GIS, and print-ready reports
- ✓Checklist and guidance aligned with USACE EM 1110-2-1614
Frequently asked questions
Why do sinkholes appear behind sound-looking seawalls?+
Fill escapes through failed joints, holed sheets or along tie rods, helped by tidal pumping — each cycle pulls a little soil out. The void grows upward until the surface collapses. The wall face can look perfect throughout. That's why backfill findings (sinkholes, soil-laden weeps) outrank face cosmetics in every condition system.
What does toe scour do to a wall?+
Walls reflect wave energy downward, digging at their own toe. As the bed lowers, embedment shortens and passive resistance drops — the wall's foundation is effectively being removed. A toe trench or exposed sheet tip is structural, not cosmetic; toe stone replenishment is the classic intervention, ideally before rotation begins.
How long do steel sheet pile walls last?+
The controlling zone is splash/low-water, where corrosion runs 2–5× the submerged rate; unprotected steel commonly thins to concern in 30–50 years (much faster in warm salt water). Coatings, cathodic protection and concrete encasement extend it. 'Holing at the waterline' findings mean the section-loss curve is far along.
When is bowing an emergency?+
Outward bow that's new, growing, or paired with anchor-zone settlement signals the anchor or passive system is letting go — progressive failure can then be rapid, especially during low-tide + saturated-backfill conditions after rain. Rope off the cap area and escalate; survey monitoring (even simple offset measurements) starts immediately.
Embed Seawall & Bulkhead Inspection Logger on your website
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