By Roman Ross — Marine Construction Estimator, Shore Protect Construction
The owner did not call us because anything had collapsed. That is what makes this project worth writing up. A continuous timber bulkhead runs roughly 1,000 feet along several adjoining waterfront lots on Lake Houston, and from the water it still looks like a wall: upright, straight, holding the lawn where it should. The question we were asked was not "how fast can you fix this" — it was "how much longer does this have, and what does it cost to get ahead of it?" Below is the honest answer we gave: what the wall is telling us, what we quoted and why, how the freshwater setting changes the price, and where the City of Houston permitting sits on a run this long.
Bottom line: On Lake Houston in Houston, TX in 2026, replacing 1,000 feet of wood bulkhead was quoted at $359,834 — $303.86 per linear foot for the wall itself, plus $20,000 to demolish the old structure and $10,000 to backfill behind the new one. The existing wall is still standing and plumb, so this is an end-of-service-life replacement on a planned schedule, not an emergency repair — which is exactly why it is cheaper now than it will be later.
Lake Houston is a freshwater water-supply reservoir, and the shoreline here is the easy kind to build on: open lawn running down to the water's edge, driveway access for trucks, no fencing to work around and no bank so steep that equipment cannot reach it. The existing structure is a classic Lake Houston timber bulkhead — round CCA piles set roughly 8 to 10 feet apart, vertical board sheeting between them, one horizontal wale band, and a timber cap along the top. A fixed timber boat dock and a gazebo sit partway along the run.
What the photo shows is a wall doing its job — and that is the point. There is no lean, no blowout, no section bellied out between piles, no sinkhole in the lawn behind the cap. What there is, everywhere, is weathering: silvered gray timber above and a dark, heavily stained band right at the waterline. That band is the diagnostic. On a wall of this vintage it is the clock, not the cosmetics. For how this compares against other walls in the area, our Houston bulkhead construction cost page breaks the numbers down by material.
Timber bulkheads do not fail gradually and politely. They hold, and hold, and then a length of sheeting lets go behind the wale and a piece of the yard goes into the lake in an afternoon. The reason is that the wall's weakest members are the ones nobody can see: the sheeting below the waterline and the tie system buried behind it. The face can look sound for years after the parts that actually carry the load have begun to give up. When an owner asks whether a standing wall needs replacing, the useful question is not "is it broken" but "how much warning will I get" — and on timber, the honest answer is almost none.
At 15 to 25 years, CCA timber on a freshwater reservoir is inside the window where that call gets made. We were candid with the owner that this is a judgment, not a certainty: a wall like this might give another three years or another eight, and nobody can read that off a photograph. What tilts it is the arithmetic of failure. A planned replacement costs what it costs. A blowout costs the same wall plus the backfill that left with it, plus the irrigation, plus whatever the dock approach needs afterward — and it happens on the lake's schedule, not the owner's. We reached the same conclusion on a smaller scale in our 100-foot wood bulkhead build in Houston, and the trade-off between wall types is laid out in our vinyl vs concrete comparison on Lake Houston.
Timber on a reservoir rots fastest exactly where the water moves up and down it. Permanently submerged wood starves of oxygen and decays slowly; permanently dry wood above the splash zone lasts a long time. The band in between — wet, then dry, then wet again, with oxygen and organisms both present — is where a bulkhead actually dies. Lake Houston's level fluctuates, which widens that band and puts a bigger share of each board through the cycle. That is why the staining in the photo matters more than the silvering above it.
The replacement design answers that directly. New 6×6 CCA posts go in at 6-foot centers — tighter than the 8-to-10-foot spacing on the existing wall, because the old wall uses round piles, and a round pile is a stiffer section than a square post of the same nominal size. Reusing the old spacing with new square posts would quietly under-build the wall. Vertical sheeting runs the full face and carries well below the mudline, a double wale ties the run together, and a galvanized tie-rod system anchors back to a second line of buried posts set behind the wall. Geotextile behind the full face keeps the backfill from washing out through the joints, which is the other way these walls fail: not by breaking, but by slowly emptying.
The as-quoted set, in freshwater specification. Every timber member is CCA marine treated; every piece of steel in the tie system is galvanized.
A crew of six — foreman, two marine carpenters, two laborers, equipment operator — working roughly 40 days at about 25 linear feet per day. Everything is reached from land: posts are driven with an excavator-mounted hydraulic hammer, so no barge and no dedicated pile-driving rig appear in this quote. On a 1,000-foot run that access is worth more than any single material choice.
Phase 1 — Marking and demolition. The line is marked along the full run and the existing timber wall is taken out and hauled off. The dock and gazebo stay: the new wall is tied into them rather than around them, which takes hand work and slows the sections either side of the structures.
Phase 2 — Structural installation. Posts are driven to depth at 6-foot centers, then the vertical sheeting goes in against them and the two waler rows tie the run together. The anchor piles are set behind the wall and the galvanized tie rods are run back and tensioned. This is the phase that decides how long the wall lasts, and it is the phase we will not compress.
Phase 3 — Geotextile, cap and backfill. Filter fabric goes behind the full face, backfill is placed and compacted behind the new wall, and the continuous cap closes the top. The cap is what most owners actually look at for the next two decades, so it goes on last and it goes on straight.
This project was quoted at $359,834 all in. The wall itself is $303.86 per linear foot across 1,000 feet — $303,864 — and that figure covers labor, materials, equipment, mobilization, permits and contingency. Demolition of the existing timber bulkhead is a separate $20,000, and backfill behind the new wall is a separate $10,000. We price those two on their own lines deliberately: both depend on what the old wall is hiding, and an owner deserves to see the wall number naked so it can be compared against another bid on equal terms.
For context, a wood bulkhead in Houston, TX generally runs $150–$350 per linear foot, and this job sits in the upper half of that band — a 5-foot exposed wall carries far more earth pressure than the 2-to-3-foot walls that anchor the bottom of the range. You can model your own frontage with our bulkhead cost calculator, compare local material pricing on the Houston bulkhead construction cost page or the lake-specific Lake Houston bulkhead cost breakdown, and see what we build locally on our Lake Houston bulkhead contractors page.
A properly built CCA timber bulkhead on freshwater is a 20-to-30-year wall, and the tie system and sheeting — not the cap you look at — set that number. The wall being replaced here delivered its service life honestly. The reason the arithmetic favors acting on schedule is that the downside is not symmetrical: waiting saves nothing if the wall holds, and costs multiples if it does not.
Lake Houston is a City of Houston water-supply reservoir, operated with the Coastal Water Authority, and shoreline work along its bank is subject to their review, with Harris County also in the picture. A like-for-like replacement in the existing alignment is the easy version of that conversation — it reads as maintenance of an existing structure rather than a new encroachment into the reservoir, which is the distinction that matters most to a drinking-water body. What makes this project different is simply length: 1,000 continuous feet is well past a routine single-lot permit, and we told the owner plainly to expect closer review and to treat an engineer's stamp as likely rather than optional. Apply early. On a run this size the permit, not the crew, is the thing most likely to set the start date.
Replacing 1,000 feet of wood bulkhead on Lake Houston in Houston, TX was quoted at $359,834 in 2026 — $303.86 per linear foot for the wall itself, plus $20,000 to demolish the old structure and $10,000 to backfill behind the new one. Across the wider market a wood bulkhead in Houston, TX generally runs $150–$350 per linear foot, and where a job lands inside that band is driven by wall height, equipment access, and whether the old wall has to come out.
Freshwater. Lake Houston is a City of Houston water-supply reservoir, so a bulkhead on it is built to a freshwater specification rather than the heavier detailing a tidal wall needs. This is a real line on the invoice, not a technicality: in Houston, TX a saltwater or brackish wall on the bay side carries a materials premium that a Lake Houston wall does not, and on a 1,000-foot run that difference is tens of thousands of dollars. The timber is still CCA marine treated — what changes is the corrosion allowance on hardware and the material pricing that tidal exposure forces.
Because both depend on what the old wall is hiding, and pricing them inside the wall number would mean guessing. On this Houston, TX project the wall itself is $303.86 per linear foot, with demolition of the existing timber structure at $20,000 and backfill behind the new wall at $10,000 shown as their own lines. An owner can see exactly what the wall costs, compare that number against another bid on equal terms, and decide the add-ons separately. It also keeps us honest — if the old wall comes out easier than expected, the line is visible and adjustable rather than buried.
About 40 working days for this 1,000-foot run in Houston, TX, at roughly 25 linear feet per day with a crew of six — a foreman, two marine carpenters, two laborers and an equipment operator. Open lawn and driveway access is what makes that rate possible: posts are driven with an excavator-mounted hydraulic hammer from land, with no barge and no dedicated pile-driving rig. A site that forces water-based access would run materially slower and cost more.
Yes. Lake Houston is a City of Houston water-supply reservoir operated with the Coastal Water Authority, and shoreline work in Houston, TX along its bank falls under their review, with Harris County also involved. A like-for-like replacement in the existing alignment is a far easier conversation than a new structure or a wall pushed further into the water — it reads as maintenance rather than encroachment. At 1,000 feet this is a large run, well past a routine single-lot permit, so the review should be opened early and an engineer's stamp treated as likely rather than optional.
Sometimes, and this Houston, TX project is the case for it. The wall here is upright, plumb and holding its line — but it is 15 to 25 years into the life of CCA timber, with heavy staining at the waterline where decay actually starts. A timber bulkhead does not fail gradually and politely; it holds until the sheeting lets go behind the wale, and then a section of yard leaves with it. Replacing on a planned schedule costs less than replacing after a blowout, because the failure takes the backfill, the irrigation and often the dock approach with it.
We build and replace wood, vinyl, steel and concrete bulkheads across Lake Houston, Harris County and the wider Houston area — from a single 25-foot lot to continuous multi-lot runs like this one. Tell us your frontage and roughly how tall the wall stands above the water, and we will tell you honestly whether you are looking at a repair, a replacement, or a few more good years. Get in touch for a free estimate.
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