29 CFR 1926 · Construction · Subpart P

1926.651(i)(1): Support Nearby Structures During Excavation

By Black Belt Safety Editorial Team Official text as of octubre 15, 2026 Data updated octubre 20, 2026 3 min read

In plain words:

Where excavation work endangers the stability of adjoining buildings, walls or other structures, employers must provide support systems such as shoring, bracing or underpinning to keep the structures stable and protect workers.

Key takeaways

  • 1926.651(i)(1) is part of OSHA's construction standards (29 CFR Part 1926, Subpart P).
  • OSHA cited it 32 times in the last 3 years, in 32 inspections, with $478,644 in current penalties.
  • 5 deaths are linked to inspections that cited this rule.
  • Most citations: NY (5), VA (3), MA (2).
  • Related part: 1926.651(i) Stability of adjacent structures (117 citations).
  • Free 5-minute toolbox talk for your crew below.
32citations, 3 years
$478,644current penalties
32inspections
5linked deaths
In this article
  1. What this rule covers
  2. Official text
  3. Injuries linked to this rule
  4. Where and how often it was cited
  5. Free toolbox talk
  6. OSHA interpretation letters
  7. Related parts of this rule
  8. Get your crew competent
  9. Frequently asked questions
  10. About this page

What this rule covers

29 CFR 1926.651(i)(1) is one requirement inside 1926.651 Specific excavation requirements, an OSHA construction standard (Part 1926, Subpart P). The official text below is copied word for word from the Electronic Code of Federal Regulations (eCFR). The numbers, injury cases and training on this page show how OSHA enforces it on real job sites.

Official text

(1) Where the stability of adjoining buildings, walls, or other structures is endangered by excavation operations, support systems such as shoring, bracing, or underpinning shall be provided to ensure the stability of such structures for the protection of employees. 32 citations

Source: eCFR, text current as of 2026-10-15. Read all of 1926.651.

Injuries linked to this rule

5 deaths are linked to inspections where OSHA cited 1926.651(i)(1).

Two employees are fatally injured when struck by falling fie
2025-02-28 · Fatal · CATONSVILLE, MD

At 11:30 a.m. on February 28, 2025, Employee #1 and Employee #2 and Coworker #1 and Coworker #2 , were applying CTS Cement Rapid Set Mortar Mix on an exposed fieldstone foundation wall to reinforce the deteriorating wall. The crew was working inside a trench…

See all 5 cases

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Where and how often it was cited

YearCitations
20231
202410
202511
202610

Top states: NY (5), VA (3), MA (2), AZ (2), MN (2)

Largest penalties

EmployerLocationPenalty for this rule
W.G. NY CONSTRUCTION CORP.BROOKLYN, NY$115,860
ALECKSSANDRO TOMAZ PEREIRAHANSON, MA$104,860
JAB INDUSTRIES, INCBROOKLYN, NY$72,826
TRYCON CONCRETE, INC.BROOKLYN, NY$51,774
AN CONCRETE & MUCH MORE LLCWASHINGTON, DC$12,500

Free toolbox talk

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OSHA interpretation letters

Related parts of this rule

Get your crew competent

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Frequently asked questions

When is support for nearby structures required?

When the stability of adjoining buildings, walls or other structures is endangered by excavation operations.

What support systems are named?

Shoring, bracing or underpinning.

Who is being protected?

Employees, by keeping the structures stable.

About this page

Sources

3-year window. Federal OSHA only; state-plan rules are not counted. Plain-language text is a summary, not legal advice; the official text controls. Black Belt Safety is not part of OSHA or the Department of Labor.

Written and reviewed by

Black Belt Safety Editorial Team

Site Safety Officer and Safety Professional

OSHA 30 · CPR · USACE CQM

Written and reviewed by the Black Belt Safety team. Every post is checked against the OSHA standard or agency source it cites.

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