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)

IS 64 E

Unknown

Over: CST MARKET ST

S 22 T 45 N R 7 E, St. Louis city, MO

Built 1963 ADT: 3,360

MARKET ST E

Unknown

Over: CST FOREST PARK AVE

S 22 T 45 N R 7 E, St. Louis city, MO

Built 1963 ADT: 9,899

GRAND BLVD S

Unknown

Over: IS 64

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

Built 1954 ADT: 86,727

IS 64 E

Unknown

Over: CST VANDEVENTER AVE

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

Built 1956 ADT: 17,485

IS 64 E

Unknown

Over: RP VANDEVENTER AVE TO IS

S 20 T 45 N R 7 E, St. Louis city, MO

Built 1956 ADT: 5,797

IS 44 E

Unknown

Over: CST CONVENTION PL

S 30 T 46 N R 7 E, St. Louis city, MO

Built 1958 ADT: 14,372

WEBER RD E

Unknown

Over: IS 55

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

Built 1962 ADT: 50,506

IS 270 E

Unknown

Over: RT H

S 114 T 47 N R 7 E, St. Louis city, MO

Built 1962 ADT: 3,078

IS 270 W

Unknown

Over: RT H

S 114 T 47 N R 7 E, St. Louis city, MO

Built 1962 ADT: 2,737

IS 55 S

Unknown

Over: CST CARONDELET BLVD

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

Built 1963 ADT: 13,145

IS 55 S

Unknown

Over: CST KOELN AVE

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

Built 1963 ADT: 700

LOUGHBOROUGH AVE E

Unknown

Over: IS 55

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

Built 1963 ADT: 40,947

LOUGHBOROUGH AVE W

Unknown

Over: IS 55

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

Built 1963 ADT: 40,947

IS 55 S

Unknown

Over: CST VIRGINIA AVE

S 8 T 44 N R 7 E, St. Louis city, MO

Built 1963 ADT: 3,712

IS 55 N

Unknown

Over: CST VIRGINIA AVE

S 8 T 44 N R 7 E, St. Louis city, MO

Built 1963 ADT: 3,712

IS 55 S

Unknown

Over: CST BATES ST

S 9 T 44 N R 7 E, St. Louis city, MO

Built 1963 ADT: 8,051

IS 55 N

Unknown

Over: CST BATES ST

S 9 T 44 N R 7 E, St. Louis city, MO

Built 1963 ADT: 8,051

IS 55 S

Unknown

Over: CST BROADWAY ST

S 4 T 44 N R 7 E, St. Louis city, MO

Built 1963 ADT: 12,321

IS 55 N

Unknown

Over: CST BROADWAY ST

S 4 T 44 N R 7 E, St. Louis city, MO

Built 1963 ADT: 12,321

IS 55 S

Unknown

Over: CST GASCONADE ST

S 3 T 44 N R 7 E, St. Louis city, MO

Built 1965 ADT: 2,680

IS 55 N

Unknown

Over: CST GASCONADE ST

S 3 T 44 N R 7 E, St. Louis city, MO

Built 1965 ADT: 2,680

IS 55 S

Unknown

Over: CST POTOMAC ST

S 34 T 45 N R 7 E, St. Louis city, MO

Built 1965 ADT: 2,843

IS 55 N

Unknown

Over: CST POTOMAC ST

S 34 T 45 N R 7 E, St. Louis city, MO

Built 1965 ADT: 2,843

IS 55 S

Unknown

Over: CST 2ND ST

S 344 T 45 N R 7 E, St. Louis city, MO

Built 1965 ADT: 4,000

IS 55 N

Unknown

Over: CST 2ND ST

S 34 T 45 N R 7 E, St. Louis city, MO

Built 1965 ADT: 4,000

IS 55 S

Unknown

Over: CST BROADWAY ST

S 34 T 45 N R 7 E, St. Louis city, MO

Built 1965 ADT: 3,705

IS 55 N

Unknown

Over: CST BROADWAY ST

S 34 T 45 N R 7 E, St. Louis city, MO

Built 1965 ADT: 6,985

UTAH ST E

Unknown

Over: IS 55

S 34 T 45 N R 7 E, St. Louis city, MO

Built 1964 ADT: 43,737

ARSENAL ST E

Unknown

Over: IS 55

S 34 T 45 N R 7 E, St. Louis city, MO

Built 1964 ADT: 43,737

ARSENAL ST W

Unknown

Over: IS 55

S 34 T 45 N R 7 E, St. Louis city, MO

Built 1964 ADT: 47,949

PESTALOZZI ST E

Unknown

Over: IS 55

S 34 T 45 N R 7 E, St. Louis city, MO

Built 1964 ADT: 47,122

SIDNEY ST E

Unknown

Over: IS 55

S 27 T 45 N R 7 E, St. Louis city, MO

Built 1964 ADT: 47,949

MO 30 E

Unknown

Over: IS 55

S 27 T 45 N R 7 E, St. Louis city, MO

Built 1965 ADT: 47,949

RP IS55N TO IS44W

Unknown

Over: IS 55

S 27 T 45 N R 7 E, St. Louis city, MO

Built 1965 ADT: 47,949

IS 44 E

Unknown

Over: IS 55

S 27 T 45 N R 7 E, St. Louis city, MO

Built 1965 ADT: 47,949

TUCKER BLVD N

Unknown

Over: IS 55

S 27 T 45 N R 7 E, St. Louis city, MO

Built 1965 ADT: 47,949

MISSISSIPPI AVE S

Unknown

Over: IS 44

S 27 T 45 N R 7 E, St. Louis city, MO

Built 1970 ADT: 39,464

HOLLY HILLS DR

Fair

Over: UP RR

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

Built 1973 Load: 17.1 t ADT: 5,000

RP IS64E TO 6TH ST

Fair

Over: 8TH STREET

S 13 T 45 N R 7 E, St. Louis city, MO

Built 1967 Load: 22.5 t ADT: 5,171

TOWER GR-VANDEVENT

Fair

Over: UP RR

S 20 T 45 N R 7 E, St. Louis city, MO

Built 1984 Load: 24.3 t ADT: 19,900

SALISBURY ST

Fair

Over: MISSISSIPPI RVR

S 1005 T 45 N R 7 E, St. Louis city, MO

Built 1910 Load: 24.3 t ADT: 10,000

16TH ST

Fair

Over: METROLINK

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

Built 1991 Load: 27.9 t ADT: 14,500

IS 44 E

Fair

Over: UNION PACIFIC RR

S 20 T 45 N R 6 E, St. Louis city, MO

Built 1970 Load: 28.8 t ADT: 39,938

IS 44 W

Fair

Over: UNION PACIFIC RR

S 20 T 45 N R 6 E, St. Louis city, MO

Built 1970 Load: 28.8 t ADT: 35,876

RP IS64E TO 14TH S

Fair

Over: METROLINK

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

Built 1967 Load: 29.7 t ADT: 5,289

MO 100 E

Fair

Over: BNSF RR

S 17 T 45 N R 7 E, St. Louis city, MO

Built 2004 Load: 29.7 t ADT: 6,604

RP IS64E TO 11TH S

Fair

Over: RR PRIVATE ENTRANC

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

Built 1967 Load: 30.6 t ADT: 3,730

ARSENAL

Fair

Over: RVR DES PERES, BNSF RR

S 26 T 45 N R 6 E, St. Louis city, MO

Built 1995 Load: 32.4 t ADT: 18,950

EADS BRIDGE

Fair

Over: MISSISSIPPI RVR, METROL

S 2571 T 45 N R 7 E, St. Louis city, MO

Built 1874 Load: 32.4 t ADT: 2,000

GRAND AVE

Fair

Over: FOREST PARK PKWY

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

Built 1961 Load: 32.4 t ADT: 34,100

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

Related

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