State profile · Below national median SD

Mississippi bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Mississippi — drawn straight from the FHWA National Bridge Inventory.

16,823
Public bridges
52.3%
Good condition
5.9%
Poor condition
5.9%
Structurally deficient

Total Bridges

16,823

Public highway bridges in Mississippi

Good Condition

52.3%

8,797 bridges rated 7-9

2.3pp vs 50% benchmark

Poor Condition

5.9%

996 bridges rated 0-4

Structurally Deficient

5.9%

996 bridges flagged for repair priority

-1.1pp vs national avg 7.0%

Mississippi vs national bridge condition

Mississippi — Good condition share 52.3%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Mississippi — Structurally deficient share 19.7%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Mississippi vs nearby ranks

Adjacent states on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Mississippi on the same metric.

56

Wyoming

5.41% top marginal rate
Structure
Progressive
Burden @ $100K
$3,181

16

Idaho

5.51% top marginal rate
Structure
Progressive
Burden @ $100K
$1,742
Selected

28

Mississippi

5.92% top marginal rate
Structure
Progressive
Burden @ $100K
$16,823

45

South Carolina

6.10% top marginal rate
Structure
Progressive
Burden @ $100K
$5,396

55

Wisconsin

6.13% top marginal rate
Structure
Progressive
Burden @ $100K
$14,851

Bridges Needing Most Attention in Mississippi

Six lowest-condition bridges in Mississippi, ranked by composite NBI rating. Each is inspected at least every 24 months.

All Bridges in Mississippi

I 20/I 59

Unknown

Over: US 11, NORFOLK S RR

I20/I59 OVER US 11 SOUTH, Lauderdale, MS

Built 1974 ADT: 5,900

I 20/I 59

Unknown

Over: SR 145

I 20/I 59 OVER SR 145, Lauderdale, MS

Built 1957 ADT: 7,000

I 20/I 59

Unknown

Over: SR 19 SOUTH/SR 39 NORTH

BONITA INTERCHANGE, Lauderdale, MS

Built 1961 ADT: 650

I 20/I 59

Unknown

Over: SR 19 SOUTH/SR 39 NORTH

BONITA INTERCHANGE, Lauderdale, MS

Built 1961 ADT: 6,500

US 45

Unknown

Over: SR 19

US 45 OVER SR 19, Lauderdale, MS

Built 1993 ADT: 7,000

US 45

Unknown

Over: SR 19

US 45 OVER SR 19, Lauderdale, MS

Built 1993 ADT: 6,500

US 45

Unknown

Over: I 59/I 20

US 45 OVER I 59/I 20, Lauderdale, MS

Built 1973 ADT: 12,500

US 45

Unknown

Over: I 59/I 20

US 45 OVER I 59/I 20, Lauderdale, MS

Built 1973 ADT: 14,500

US 45

Unknown

Over: US 80, NORFOLK S RR

0.7 MI N I 59/I 20, Lauderdale, MS

Built 1973 ADT: 3,700

US 45

Unknown

Over: US 80, NORFOLK S RR

0.7 MI N I 59/I 20, Lauderdale, MS

Built 1973 ADT: 5,000

NORFOLK S RR

Unknown

Over: US 80

6.1 MI E US 45, Lauderdale, MS

Built 1945 ADT: 2,300

US 80

Unknown

Over: I 59

US 80 OVER I 59/I 20, Lauderdale, MS

Built 1960 ADT: 11,500

SR 145

Unknown

Over: US 45

4.1 MI N CLARKE CL, Lauderdale, MS

Built 1993 ADT: 4,600

SR 145

Unknown

Over: US 45

SR 145 OVER US 45, Lauderdale, MS

Built 1993 ADT: 4,600

SR 145

Unknown

Over: US 45

SR 145 OVER US 45, Lauderdale, MS

Built 1993 ADT: 4,450

PEAVY ROAD

Unknown

Over: I 20

1.0 MI E NEWTON CL, Lauderdale, MS

Built 1965 ADT: 9,500

SUQUALENA MEEHAN

Unknown

Over: I 20

2.1 MI E NEWTON CL, Lauderdale, MS

Built 1965 ADT: 10,500

SUQUALENA GRAHAM

Unknown

Over: I 20

4.0 MI E NEWTON CL, Lauderdale, MS

Built 1965 ADT: 10,500

US 80

Unknown

Over: I 20

US 80 WEST INTERCHANGE, Lauderdale, MS

Built 1965 ADT: 10,500

DUNNS FALL ROAD

Unknown

Over: I 59

1.3 MI N CLARKE CL, Lauderdale, MS

Built 1965 ADT: 6,000

MEEHAN-SAVOY ROAD

Unknown

Over: I 59

3.2 MI N CLARKE CL, Lauderdale, MS

Built 1965 ADT: 6,500

ARUNDEL ROAD

Unknown

Over: I 59

8.2 MI N CLARKE CL, Lauderdale, MS

Built 1965 ADT: 7,000

SWEET GUM BOTTOM

Unknown

Over: I 59/I 20

0.9 MI N US 45, Lauderdale, MS

Built 1959 ADT: 12,500

MURPHY ROAD

Unknown

Over: I 59/I 20

1.8 MI N US 45, Lauderdale, MS

Built 1959 ADT: 12,500

GORDY HARPER ROAD

Unknown

Over: I 59/I 20

2.4 MI N US 45, Lauderdale, MS

Built 1959 ADT: 12,500

RUSSELL ROAD

Unknown

Over: I 59/I 20

3.4 MI N US 45, Lauderdale, MS

Built 1959 ADT: 12,500

DEES ROAD

Unknown

Over: I 59/I 20

4.7 MI N US 45, Lauderdale, MS

Built 1961 ADT: 12,500

RADCLIFF ROAD

Unknown

Over: I 59/I 20

5.0 MI N US 45, Lauderdale, MS

Built 1961 ADT: 12,500

WILL GARRETT ROAD

Unknown

Over: I 59/I 20

7.8 MI N US 45, Lauderdale, MS

Built 1961 ADT: 12,500

SMITH SPUR ROAD

Unknown

Over: I 59/I 20

9.9 MI N US 45, Lauderdale, MS

Built 1960 ADT: 10,500

KEWANEE ROAD

Unknown

Over: I 59/I 20

1.0 MI N US 80, Lauderdale, MS

Built 1970 ADT: 10,500

CUBA ROAD

Unknown

Over: I 59/I 20

2.6 MI N US 80, Lauderdale, MS

Built 1970 ADT: 10,500

49TH AVE

Unknown

Over: I 59/I 20

0.5 MI E US 11, Lauderdale, MS

Built 1973 ADT: 21,000

49TH AVE

Unknown

Over: I 59/I 20

0.5 MI E US 11, Lauderdale, MS

Built 1973 ADT: 25,000

29TH AVE

Unknown

Over: I 59/I 20

1.5 MI E US 11, Lauderdale, MS

Built 1973 ADT: 23,000

23RD AVE. EAST

Unknown

Over: I 59/I 20

1.3 MI EAST OF SR 39, Lauderdale, MS

Built 2011 ADT: 15,000

M & B RR

Unknown

Over: CAUSEYVILLE RD

SEC 7 T 5N R17E B, Lauderdale, MS

Built 1923 ADT: 400

ICG RR

Unknown

Over: OLD HWY 80

SEC 20 T 6N R15E, Lauderdale, MS

Built 1915 ADT: 460

US 84

Unknown

Over: SR 27

US 84 OVER SR 27, Lawrence, MS

Built 2006 ADT: 3,400

US 84

Unknown

Over: SR 27

US 84 OVER SR 27, Lawrence, MS

Built 2006 ADT: 3,400

OLD SR 27

Unknown

Over: US 84

1.0 MI E SR 27, Lawrence, MS

Built 2006 ADT: 4,200

NATCHEZ TRACE

Unknown

Over: SR 16

NATCHEZ TRACE OVER SR 16, Leake, MS

Built 1949 ADT: 3,800

SR 16

Unknown

Over: SR 25

SR 16 OVER SR 25, Leake, MS

Built 1998 ADT: 3,650

SR 16

Unknown

Over: SR 25

SR 16 OVER SR 25, Leake, MS

Built 1997 ADT: 3,650

SR 25

Unknown

Over: SR 35

SR 25 OVER SR 35, Leake, MS

Built 1999 ADT: 2,200

SR 25

Unknown

Over: SR 35

SR 25 OVER SR 35, Leake, MS

Built 1999 ADT: 3,100

US 45

Unknown

Over: US 45A

US 45 OVER US 45A, Lee, MS

Built 1994 ADT: 5,500

US 45

Unknown

Over: US 45A

US 45 OVER US 45A, Lee, MS

Built 1994 ADT: 9,250

KCS RR

Unknown

Over: US 45

8.2 MI N MONROE CL, Lee, MS

Built 1981 ADT: 12,500

US 45

Unknown

Over: SR 6 AND SR 178

US 45 OVER SR 6, Lee, MS

Built 1976 ADT: 8,750

Showing 351-400 of 16,823 bridges

Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.