Underground Utilities

City of Sioux City

1921 18th Street, Sioux City, IA 51105
Water Supply and Irrigation Systems (NAICS 221310)

DART 25.23 11 recordable cases · 40 avg employees · 63,410 hours worked

This establishment vs. the industry

The DART rate at this establishment is about 5.6× the industry median.

This establishment: 25.23
Industry median (Water distribution (except irrigation), n=335): 4.50

Reported injury and illness, 2024

Fatalities0 Days-away-from-work cases2 Restricted-duty / transferred cases6 Other recordable cases3 Total recordable cases11 Days lost to injury29

Injury rates (per 100 FTE-year, OSHA standard)

DART rate25.23 (days away + restricted/transferred) DAFW rate6.31 (days away from work only) Total recordable rate (TRIR)34.69 (all OSHA-recordable cases) Annual average employees40 Total hours worked63,410
What these numbers mean. An OSHA-recordable case is a work-related injury or illness that resulted in death, days away from work, restricted work, transfer to another job, medical treatment beyond first aid, loss of consciousness, or significant injury diagnosed by a physician. DART rate is the OSHA-standard incidence measure — calculate it as (cases with days away + restricted/transferred) × 200,000 / hours worked. The 200,000 hours normalizes to 100 full-time-equivalent workers over a year. National average DART across all industries is around 1.7; high-risk industries (skilled nursing, warehousing, courier) routinely exceed 5.

Source: OSHA ITA 300A Summary Data, calendar year 2024 filings (downloaded 2026-05-23).

OSHA Lookup · workplace-injury data from OSHA ITA 300A 2024 · About / methodology