2,042,423Injury reports 130,778Establishments Most recent incident 2025-12-31
Safety Incidents OSHA Severe Injury Reports · 2015–2025

CHICAGO, IL —

OSHA Injury Report: 4111 SIGNAL MAINTENANCE

Injury · Days away from work

At a glance

On , an injury at 4111 SIGNAL MAINTENANCE in W S POWER WAY 3900 W MAYPOLE, CHICAGO, IL 60624 resulted in days away from work. Employee was sIGNAL MAINTAIN in mixed Mode Transit System.

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Where did this happen?

Establishment
4111 SIGNAL MAINTENANCE
Parent company
Chicago Transit Authority SIGNAL MAINTENANCE
Street
W S POWER WAY 3900 W MAYPOLE
City
CHICAGO
State
IL
ZIP
60624
On-site location
SIGNAL MAINTENANCE

What was the outcome?

Outcome
Days away from work (code 2)
Type
Injury (code 1)
Days away from work
21

Before the incident

LIFTING MOTOR

What happened

EE was lifting a motor when he felt a sharp pain in his lower back area

Injury or illness

Strained Posterior Low back Lifting MOTOR

Object or substance involved

MOTOR

Summary line

EE was lifting a motor when he felt a sharp pain in his lower back area

Employee and industry

Job description
SIGNAL MAINTAIN
SOC code
49-9097 — Signal and Track Switch Repairers
NAICS code
485111 — Mixed Mode Transit System
NAICS vintage
2022
Avg employees
118
Total hours worked
254007
EIN
362164842
Establishment ID
1173509
Employer case #
1702

When (timing detail)

Date of incident
Shift started
14:00
Time of incident
21:30
Filing year
2025
Submitted
23FEB26:18:09:00

More injuries at 4111 SIGNAL MAINTENANCE

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Source

Data from OSHA ITA Form 300/301 electronic submissions, filing year 2025. ITA Case Detail records are establishment-reported submissions, not OSHA inspections — no per-record IMIS deep link exists.