SIC Code 1622 — Bridge, Tunnel, and Elevated Highway Construction

4-digit industry in the 1987 Standard Industrial Classification — still requested by banks, insurers, SEC filings and legacy systems.

Code	1622
Title	Bridge, Tunnel, and Elevated Highway Construction
System	SIC 1987 (final edition — replaced by NAICS in 1997)

The SIC was last revised in 1987 and officially superseded by NAICS in 1997, but it never fully disappeared: the SEC still tags EDGAR filings with SIC codes, and many banks, insurers and legacy databases keep requesting it. That is why converting between the two systems is still routine work.

NAICS equivalents of SIC 1622

From the official U.S. Census concordance (1987 SIC → 2002 NAICS). Where the 2002 code no longer exists in NAICS 2022, the closest current code is shown.

NAICS 2002	Title (2002)	Current 2022 code
237310	Highway, Street, and Bridge Construction	237310 (same code)
237990	Other Heavy and Civil Engineering Construction	237990 (same code)

Other SIC codes in 16xx

• 1611 — Highway and Street Construction, Except Elevated Highways
• 1623 — Water, Sewer, Pipeline, and Communications and Power Line Construction
• 1629 — Heavy Construction, Not Elsewhere Classified

Data: 1987 SIC titles (OSHA/Census) and official Census concordance — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.