County profile · official public datasets

Andrew County, MO

162 public highway bridges tracked in the FHWA National Bridge Inventory: 38.9% rated Good, 46.3% Fair, 14.8% Poor.

162
Public bridges: 38.9%
Good condition: 14.8%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Andrew County pairs a higher-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.

94th
of 115 on Poor share: 14.8%
Poor-condition share: 162
public highway bridges: 1984
avg year built

Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.

Andrew County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Andrew County ranks #94 of 115 Missouri counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 14.8%). Andrew County, Missouri contains 162 public highway bridges. Roughly 38.9% are rated “Good,” 46.3% “Fair,” and 14.8% “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.

Total bridges

162

Public highway bridges in Andrew County

Good condition

38.9%

63 of 162 rated 7-9

Fair condition

46.3%

75 of 162 rated 5-6

Poor condition

14.8%

24 of 162 rated 4 or below

In-state Poor-share rank

#94 of 115

Among Missouri counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 162 NBI-tracked bridges by lowest applicable component rating.

Good

38.9% (63)

Fair

46.3% (75)

Poor

14.8% (24)

Andrew County's Poor-condition bridges carry 2,202 vehicle crossings a day

That is 0.8% of the county's reported daily bridge traffic on 14.8% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 92 crossings a day against 1,620 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.

Computed over the 162 of 162 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

32.7% of Andrew County's bridges have passed the 50-year mark

53 of the 162 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 38.9% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.

Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.

One structure carries 29.1% of the county's Poor-condition bridge traffic

RT B E over 102 RVR, built 1963, carries 640 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 24-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 2,202 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1920s

8
1930s

6
1940s

3
1950s

7
1960s

24
1970s

10
1980s

21
1990s

25
2000s

30
2010s

23
2020s

5

What this shows Construction peaked in the 2000s, when 30 of the county's bridges still in the inventory were built, which is 18.5% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year is 1984, 5 years newer than the Missouri average of 1979.

How Andrew County compares with Missouri's closest counties by inventory size

The 5 Missouri counties nearest Andrew County in number of bridges, with their condition splits. Its 14.8% Poor share is the 6th-lowest of these 6. Its average build year of 1984 against a peer-group mean of 1973 is 11 years newer.

Showing the 5 closest of 114 Missouri counties eligible for comparison.

Bridge inventory size and condition shares for Andrew County and the 5 Missouri counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
St. Francois County	165	38.2%	51.5%	10.3%	1968
Montgomery County	163	28.8%	65%	6.1%	1979
Randolph County	163	60.1%	36.8%	3.1%	1984
Texas County	162	26.5%	66%	7.4%	1963
Andrew County (this page)	162	38.9%	46.3%	14.8%	1984
Dade County	161	36.6%	58.4%	5%	1972

Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Andrew County's. Source: FHWA National Bridge Inventory, 2024 release.

Nationwide counties with similar inventory size or average build year

Two NBI-derived peer sets for Andrew County, both outside Missouri so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside MO (162 bridges here).

Perry County, AL · 162 bridges
Johnson County, AR · 162 bridges
Ouachita County, AR · 162 bridges
Bond County, IL · 162 bridges

Similar average build year

Nearest mean year-built outside MO (1984 here).

Hennepin County, MN · avg 1984 · 936 bridges
Duval County, FL · avg 1984 · 831 bridges
El Paso County, CO · avg 1984 · 686 bridges
Bell County, TX · avg 1984 · 660 bridges

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All 162 Good 63 Fair 75 Poor 24

Fair-condition bridges (75)

Sort:

Andrew County Bridge Snapshot

Condition distribution

Andrew County's Poor-condition bridges carry 2,202 vehicle crossings a day

32.7% of Andrew County's bridges have passed the 50-year mark

One structure carries 29.1% of the county's Poor-condition bridge traffic

How Andrew County compares with Missouri's closest counties by inventory size

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

Fair-condition bridges (75)

COUNTY RD 73

COUNTY RD 274

COUNTY RD 80

COUNTY RD 130

COUNTY RD 132

COUNTY RD 133

COUNTY RD 361

COUNTY RD 127

RT C S

COUNTY RD 125

COUNTY RD 149

COUNTY RD 308

COUNTY RD 410

COUNTY RD 150

RT K S

COUNTY RD 156

US 59 S

COUNTY RD 266

COUNTY RD 400

COUNTY RD 190

RT V E

RT T E

IS 29 S

IS 29 N

RT W S

RT T E

COUNTY RD 45

RT K S

IS 29 S

RT H S

IS 29 S

IS 29 N

IS 29 S

COUNTY RD 14

COUNTY RD 54

COUNTY RD 67

COUNTY RD 141

COUNTY RD 157

COUNTY RD 417

COUNTY RD 422

US 169 S

IS 29 N

COUNTY RD 402

COUNTY RD 410

IS 229 N

RT E E

IS 229 S

IS 229 N

IS 29 N

IS 29 S

Related