St. Louis city County, MO

240 public highway bridges

St. Louis city County Bridge Snapshot

St. Louis city County, Missouri contains 240 public highway bridges in the FHWA National Bridge Inventory. Roughly 15.4% are rated “Good,” 19.2% “Fair,” 8.3% “Poor,” and 8.3% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in MO are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

240
Total Bridges
15.4%
Good
8.3%
Poor
8.3%
Structurally Deficient

Condition Distribution

Good
15.4% (37)
Fair
19.2% (46)
Poor
8.3% (20)
SD
8.3% (20)

All Bridges (240)

JEFFERSON AVE

Good

Over: METROLINK, TRRA &

S 363 T 45 N R 7 E, St. Louis city, MO

Built 2007 Load: 38.7 t ADT: 21,700

RT H S

Good

Over: MALINE CR

S 15 T 46 N R 7 E, St. Louis city, MO

Built 2007 Load: 39.6 t ADT: 11,608

IS 55 N

Good

Over: CST 2ND ST

S 23 T 45 N R 7 E, St. Louis city, MO

Built 2016 Load: 39.6 t ADT: 22,463

KINGSHIGHWAY BLVD

Good

Over: TRRA RR

S 32 T 46 N R 7 E, St. Louis city, MO

Built 2003 Load: 40.5 t ADT: 27,000

IS 44 E

Good

Over: CST THURMAN AVE

S 28 T 45 N R 7 E, St. Louis city, MO

Built 2018 Load: 40.5 t ADT: 40,545

ALABAMA AVE

Good

Over: RVR DES PERES

S 18 T 44 N R 7 E, St. Louis city, MO

Built 1994 Load: 41.4 t ADT: 10,800

BROADWAY AVE

Good

Over: RVR DES PERES

S 19 T 44 N R 7 E, St. Louis city, MO

Built 2004 Load: 41.4 t ADT: 10,679

IS 44 W

Good

Over: CST THURMAN AVE

S 28 T 45 N R 7 E, St. Louis city, MO

Built 2018 Load: 41.4 t ADT: 40,545

KNOX AVE

Good

Over: RVR DES PERES

S 20 T 44 N R 6 E, St. Louis city, MO

Built 1991 Load: 42.3 t ADT: 1,580

MORGANFORD RD

Good

Over: UP RR

S 3125 T 45 N R 7 E, St. Louis city, MO

Built 1997 Load: 43.2 t ADT: 10,900

18TH ST S

Good

Over: NO FEATURE

S 363 T 45 N R 7 E, St. Louis city, MO

Built 2006 Load: 44.1 t ADT: 5,043

MACKLAND AVE

Good

Over: RVR DES PERES

S 2037 T 45 N R 7 E, St. Louis city, MO

Built 1926 Load: 45.0 t ADT: 5,587

SPRUCE ST

Good

Over: METROLINK

S 363 T 45 N R 7 E, St. Louis city, MO

Built 2016 Load: 45.9 t ADT: 2,081

CONCOURSE DR S

Good

Over: PEDESTRIAN TUNNEL

S 19 T 45 N R 7 W, St. Louis city, MO

Built 2009 Load: 45.9 t ADT: 34,918

RP IS55S TO IS44E

Good

Over: RP IS44E TO MEMORIAL DR

S 23 T 45 N R 7 E, St. Louis city, MO

Built 2015 Load: 46.8 t ADT: 13,305

UNION AVE

Good

Over: TRRA RR

S 32 T 46 N R 7 E, St. Louis city, MO

Built 1988 Load: 52.2 t ADT: 20,200

FOREST PARK PKWY

Good

Over: METROLINK

S 3125 T 45 N R 7 E, St. Louis city, MO

Built 2017 Load: 54.0 t ADT: 29,920

KINGSHIGHWAY BLVD

Good

Over: DAGGETT AVE

S 2037 T 45 N R 7 E, St. Louis city, MO

Built 2015 Load: 54.9 t ADT: 39,200

KINGSHIGHWAY BLVD

Good

Over: UP RR

S 2037 T 45 N R 7 E, St. Louis city, MO

Built 2015 Load: 57.6 t ADT: 39,200

HAMILTON BLVD

Good

Over: METROLINK

S 1201 T 45 N R 6 E, St. Louis city, MO

Built 2023 Load: 58.5 t ADT: 1,300

GRAND DR

Poor

Over: RVR DES PERES LAGO

S 1201 T 45 N R 6 E, St. Louis city, MO

Built 1935 Load: 9.9 t ADT: 5,000

LOUGHBOROUGH AVE

Poor

Over: UP RR

S 3102 T 44 N R 7 E, St. Louis city, MO

Built 1957 Load: 18.0 t ADT: 21,390

LINDELL-UNION

Poor

Over: METROLINK

S 3125 T 45 N R 6 E, St. Louis city, MO

Built 1929 Load: 18.0 t ADT: 30,000

LAURAL & WATERMAN

Poor

Over: METROLINK

S 1201 T 45 N R 6 E, St. Louis city, MO

Built 1936 Load: 21.6 t ADT: 3,800

GRAND DR

Poor

Over: FOREST PARK PKWY

S 18 T 45 N R 7 E, St. Louis city, MO

Built 1961 Load: 23.4 t ADT: 3,500

TICKETING DR

Poor

Over: BAGGAGE CLAIM DR

S 2524 T 46 N R 6 E, St. Louis city, MO

Built 1970 Load: 28.8 t ADT: 15,000

GRAND AVE

Poor

Over: UP RR

S 3102 T 44 N R 7 E, St. Louis city, MO

Built 1913 Load: 36.9 t ADT: 10,200

WEST FLORISSANT AV

Poor

Over: TRRA RR

S 33 T 46 N R 7 E, St. Louis city, MO

Built 1959 Load: 36.9 t ADT: 16,976

KINGSHIGHWAY

Poor

Over: METROLINK

S 18 T 45 N R 7 E, St. Louis city, MO

Built 1937 Load: 37.8 t ADT: 45,900

TUCKER BLVD

Poor

Over: TRRA & UP RR

S 23 T 45 N R 7 E, St. Louis city, MO

Built 1979 Load: 37.8 t ADT: 21,000

RP IS64E TO GRAND

Poor

Over: FDRL SIGN CO ENTR

S 16 T 45 N R 7 E, St. Louis city, MO

Built 1960 Load: 43.2 t ADT: 6,052

COLUMBIA AVE

Structurally Deficient

Over: UP RR

S 2037 T 45 N R 6 E, St. Louis city, MO

Built 1913 ADT: 4,060

IS 55 N

Structurally Deficient

Over: MO PAC RR

S 17 T 44 N R 7 E, St. Louis city, MO

Built 1963 ADT: 44,181

SOUTHWEST AVE

Structurally Deficient

Over: UP RR

S 2037 T 45 N R 6 E, St. Louis city, MO

Built 1961 Load: 12.6 t ADT: 10,460

GRAND DR

Structurally Deficient

Over: METROLINK

S 3125 T 45 N R 7 E, St. Louis city, MO

Built 1936 Load: 18.0 t ADT: 5,000

SULPHUR AVE

Structurally Deficient

Over: RVR DES PERES

S 2037 T 45 N R 7 E, St. Louis city, MO

Built 1970 Load: 20.7 t ADT: 200

HAMILTON

Structurally Deficient

Over: METROLINK

S 1201 T 45 N R 6 E, St. Louis city, MO

Built 1936 Load: 21.6 t ADT: 1,300

COMPTON AVE

Structurally Deficient

Over: MO PAC, BN, N&W RR

S 363 T 45 N R 7 E, St. Louis city, MO

Built 1965 Load: 21.6 t ADT: 14,270

LINDELL-UNION

Structurally Deficient

Over: FOREST PARK PKWY

S 18 T 45 N R 7 E, St. Louis city, MO

Built 1961 Load: 23.4 t ADT: 33,500

THEATER DR

Structurally Deficient

Over: RVR DES PERES LAGO

S 1201 T 45 N R 6 E, St. Louis city, MO

Built 1922 Load: 43.2 t ADT: 1,000

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial