St. Louis County, MN

641 public highway bridges

St. Louis County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, St. Louis County, Minnesota contains 641 public highway bridges. Roughly 48.2% are rated “Good,” 34.2% “Fair,” and 5% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

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

641

Total Bridges

48.2%

Good

34.2%

Fair

5%

Poor Condition

Condition Distribution

Good

48.2% (309)

Fair

34.2% (219)

Poor

5% (32)

All Bridges (641)

Sort:

RAILROAD

Over: US 2

1.7 MI E OF JCT TH 33, St. Louis, MN

Built 1932 ADT: 5,200

US 53

Over: 6TH AVE W

1.3 MI SE OF JCT TH 169, St. Louis, MN

Built 1962 ADT: 1,800

US 53

Over: 6TH AVE W

1.3 MI SE OF JCT TH 169, St. Louis, MN

Built 1970 ADT: 1,800

RAILROAD

Over: US 53

3.1 MI N OF JCT TH 169, St. Louis, MN

Built 1975 ADT: 12,154

US 169

Over: US 53

AT THE JCT TH 169; 53, St. Louis, MN

Built 1969 ADT: 12,300

M 372

Over: US 53

0.25 MI N OF JCT TH 35, St. Louis, MN

Built 2003 ADT: 22,900

US 169

Over: CSAH 102

2.6 MI W OF JCT TH 53, St. Louis, MN

Built 1970 ADT: 2,450

US 169

Over: CSAH 102

2.6 MI W OF JCT TH 53, St. Louis, MN

Built 1970 ADT: 2,450

MN 33

Over: US 53 SB

AT THE JCT TH 33; 53, St. Louis, MN

Built 2012 ADT: 3,950

RAILROAD

Over: US 169

4.0 MI E OF N JCT TH 73, St. Louis, MN

Built 1979 ADT: 9,000

US 169

Over: TH 73 NB

AT THE N JCT TH 169; 73, St. Louis, MN

Built 1979 ADT: 2,750

US 169

Over: TH 73 NB

AT THE N JCT TH 169; 73, St. Louis, MN

Built 1979 ADT: 2,750

US 2

Over: ST LOUIS R, TH35; RR

AT WISCONSIN STATE LINE, St. Louis, MN

Built 1982 ADT: 44,500

CON 5873

Over: I 35 RAMP; LAKE

AT THE JCT TH 2; 35, St. Louis, MN

Built 1983 ADT: 2,500

CON 3544

Over: I 35, RAMPS; LAKE

AT THE E JCT TH 35; 2, St. Louis, MN

Built 1983 ADT: 1,500

MN 33

Over: CR 694; DM;IR RY

1.5 MI N OF JCT TH 2, St. Louis, MN

Built 1986 ADT: 115

MN 33

Over: CR 694; DM;IR RY

1.5 MI N OF JCT TH 2, St. Louis, MN

Built 1986 ADT: 145

MN 33

Over: US 2

AT THE JCT TH 33; 2, St. Louis, MN

Built 1987 ADT: 5,000

MN 33

Over: US 2

AT THE JCT OF TH 33; 2, St. Louis, MN

Built 1987 ADT: 5,000

MSAS 113

Over: US 53

0.75 MI N OF JCT TH 35, St. Louis, MN

Built 2003 ADT: 23,600

US 53

Over: TH 169

AT THE N JCT TH 53; 169, St. Louis, MN

Built 2004 ADT: 5,900

US 53

Over: TH 169

AT THE N JCT TH 53; 169, St. Louis, MN

Built 2004 ADT: 6,500

MN 135

Over: US 53

0.1 MI N OF JCT US 53, St. Louis, MN

Built 2016 ADT: 22,200

MN 37

Over: US 53

AT JCT TH 37; 53, St. Louis, MN

Built 2018 ADT: 9,300

PEDESTRIAN

Over: I 35, FRONT RDS;STREET

1.5 MI NE OF JCT TH 535, St. Louis, MN

Built 1977 ADT: 3,550

CSAH 57

Over: US 169

1.0 MI E OF S JCT TH 73, St. Louis, MN

Built 1987 ADT: 12,800

MN 194

Over: 2ND AVE W RAMP

0.7 MI N OF JCT TH 35, St. Louis, MN

Built 1988 ADT: 2,500

CSAH 61

Over: ACCESS RD

.08 MI W OF JCT CSAH 33, St. Louis, MN

Built 2004 ADT: 20

SKYWAY

Over: E 1ST ST

0.2 MI SE OF JCT CSAH 9, St. Louis, MN

Built 2001 ADT: 3,700

MSAS 149

Over: I 35, Michigan ST; RR

0.5 MI NE OF JCT TH 535, St. Louis, MN

Built 1983 ADT: 3,200

I 535

Over: SB GARFIELD; BNSF RR

0.7 MI S OF JCT TH 35, St. Louis, MN

Built 1969 ADT: 2,300

CON 504

Over: GARFIELD NB; SB; RR

0.7 MI S OF JCT TH 35, St. Louis, MN

Built 1969 ADT: 2,300

PEDESTRIAN

Over: I 35

AT ORE DOCKS, St. Louis, MN

Built 1967 ADT: 44,000

I 35

Over: S UGSTAD RD (CSAH 45)

2.3 MI SW OF W JCT TH 2, St. Louis, MN

Built 1975 ADT: 1,206

MSAS 140

Over: I 35, FRRD, MICH; LK PL

2.0 MI NE OF JCT TH 535, St. Louis, MN

Built 1982 ADT: 1,000

CON 3744

Over: I 35;SB OFF RAMP

2.3 MI NE OF JCT TH 535, St. Louis, MN

Built 1987 ADT: 3,000

I 35

Over: SL;LC RR; TH 194 NB

0.3 MI SW OF JCT 5TH AVE, St. Louis, MN

Built 1985 ADT: 9,250

I 35

Over: SL;LC RR; TH 194 NB

0.3 MI SW OF JCT 5TH AVE, St. Louis, MN

Built 1985 ADT: 9,250

PLAZA

Over: I 35, SB RAMP; MICH ST

2.3 MI NE OF JCT TH 535, St. Louis, MN

Built 1987 ADT: 4,300

MSAS 171

Over: I 35

2.7 MI NE OF JCT TH 535, St. Louis, MN

Built 1983 ADT: 20,400

MSAS 171

Over: I 35

2.5 MI NE OF JCT TH 535, St. Louis, MN

Built 1986 ADT: 20,400

MSAS 110

Over: I 35

1.5 MI SW OF JCT TH 535, St. Louis, MN

Built 1967 ADT: 44,000

MSAS 109

Over: I 35; SBOFF RAMP

1.3 MI SW OF JCT TH 535, St. Louis, MN

Built 1967 ADT: 1

RAILROAD

Over: I 35

AT ORE DOCKS, St. Louis, MN

Built 1966 ADT: 44,000

PEDESTRIAN

Over: I 35

3.5 MI N OF JCT TH 535, St. Louis, MN

Built 1988 ADT: 20,400

MSAS 194

Over: TH 194 SB

AT JCT TH 35, St. Louis, MN

Built 1969 ADT: 12,050

MN 194

Over: SUPERIOR ST(MSAS171)

0.2 MI N OF JCT TH 35, St. Louis, MN

Built 1968 ADT: 11,960

MSAS 152

Over: I 35, SL;LC RR

3.8 MI NE OF JCT TH 535, St. Louis, MN

Built 1988 ADT: 18,800

PEDESTRIAN

Over: I 35

4.1 MI NE OF JCT TH 535, St. Louis, MN

Built 1990 ADT: 18,800

I 35

Over: RECYCLE WAY

3.7 MI SW OF JCT TH 535, St. Louis, MN

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

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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