Construction Site Notice (CSN) Signage
The sign at the gate is the site's permit made visible — the one piece of the paperwork the public, the city, and the state can all read from the street. Filings live in databases; the notice lives in weather. Terradyne prepares the right form for the site, supplies the board it hangs on, and keeps it posted until the rules say it can come down.
What is a Construction Site Notice?
The posted proof that a construction site's stormwater house is in order. Operators with authorization for construction activity under TXR150000 must post a TCEQ site notice at the construction site at a place readily available for viewing by the general public and local, state, and federal authorities.
The notice stands where anyone — neighbor, city, state — can read it without setting foot past the gate: the site's compliance, posted in public. It is the one document every passerby is invited to read, which makes its condition a public statement about how the site is run.
Which notice your site posts
The form depends on the project's size classification — and for the small site, the posting is the path. Operators of small construction activities may be automatically authorized under TXR150000, provided they meet all of the permit's conditions for that path - among them developing and implementing a SWP3 and posting the signed TCEQ Small Construction Site Notice. Operators of regulated small construction activities must post a signed and certified TCEQ Small Construction Site Notice — Form TCEQ-20963 — at least two days before commencing construction activity. Operators of large construction activities must post a TCEQ Large Construction Site Notice on the approved TCEQ form — Form TCEQ-20961 — and maintain it until final stabilization has been achieved. The maintenance duty reads the same on both paths. Operators of regulated construction sites must post a signed TCEQ construction site notice and maintain it at the site until final stabilization is achieved. Posted early, maintained throughout, retired only at the end — the notice brackets the entire job.
The copy the city gets
Posting at the gate is not the only delivery. A copy of the signed and certified Small Construction Site Notice must be provided to the operator of any MS4 receiving the discharge at least two days before construction begins. The storm sewers a site drains to belong to somebody, and that somebody gets paper before the work starts — a step that is easy to lose in the mobilization rush. The desk handles the delivery and keeps the proof of it with the site's records, where the question will eventually be asked.
When it comes down
Taking the sign down is a compliance event, not a cleanup task. For small construction sites and secondary operators at large construction sites, compliance with the permit is required until the posted TCEQ construction site notice is removed — and the notice cannot be removed until final stabilization has been achieved. The notice is the last thing standing on a finished site for a reason: it is the public face of obligations that persist until the ground has permanently settled down.
Pipelines, roads, and other moving targets
A site that moves needs a notice that moves with it. For linear construction activities such as pipelines or highways, the site notice must be placed in a publicly accessible location near where construction is actively underway, and may be relocated along the length of the project as work progresses. The rule keeps the paperwork within reach of wherever the work actually is — one more thing the desk tracks so the crew does not have to.
The physical sign
Terradyne supplies and posts CSN signs — 1.5-by-2-foot metal-frame jobsite signs displaying the TCEQ construction site notice form. Terradyne replaces missing or damaged sign boards with the CSN document. A faded, fallen, or missing board reads as a lapse to every inspector who drives past, whatever the binder says. Paper in a sleeve dies by August; a framed board reads like the site takes its obligations seriously — because it does. The board goes up at the entrance the public actually uses, mounted to survive wind, sun, and the occasional reversing truck. When the project moves its gate, the sign moves with it — a notice nobody can find is a notice that is not posted.
Frequently Asked Questions
Which notice does my site post?
The one matching its size classification — smaller regulated sites post their signed notice as their coverage path, larger sites post theirs alongside a coverage filing. Same gate, different form; the desk sorts it from the acreage.
When does the notice go up?
Before construction begins — with lead time built in, because copies also have to reach the local storm sewer operator ahead of the work. The sign is a prerequisite, not a finishing touch.
When can the sign come down?
Only when the site has reached final stabilization — permanent cover, established and accepted. For the sites whose coverage runs on the posted notice, the obligations run until the sign comes down — it is the last thing to leave.
What about linear projects like pipelines?
The notice posts in a publicly accessible spot near the active work and relocates along the alignment as construction progresses — the sign follows the spread, and staying visible is the constant.
Does Terradyne supply the actual sign?
Yes — a metal-frame sign built for jobsite weather, displaying the required form, posted where the rules want it. When a board goes missing or takes a hit, we replace it with the document intact.
What happens if the sign is damaged mid-project?
Replace it promptly — the posting duty runs continuously, not just on install day. A program site list keeps replacements moving without anyone having to notice first, which is how multi-site operators keep every gate presentable.
Request a bid
Send your site list to bids@terradynegroup.com or call (214) 878-7392 for CSN signage, posting, and replacement. One site or a whole program — the desk preps the forms, hangs the boards, and keeps them current. The filings behind the sign live at NOI / NOC / NOT Filing, and the plan it points to comes from SWPPP Narrative & Manual Preparation.