County profile · official public datasets

Greenwood County, SC

144 public highway bridges tracked in the FHWA National Bridge Inventory: 25% rated Good, 70.8% Fair, 4.2% Poor.

144
Public bridges: 25%
Good condition: 4.2%
Poor condition

The verdict

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

Greenwood County pairs a better-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.

Top 35%
lowest Poor share in state: 4.2%
Poor-condition share: 144
public highway bridges: 1971
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.

Greenwood County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Greenwood County ranks #16 of 46 South Carolina counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 4.2%). Greenwood County, South Carolina contains 144 public highway bridges. Roughly 25% are rated “Good,” 70.8% “Fair,” and 4.2% “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

144

Public highway bridges in Greenwood County

Good condition

25%

36 of 144 rated 7-9

Fair condition

70.8%

102 of 144 rated 5-6

Poor condition

4.2%

6 of 144 rated 4 or below

In-state Poor-share rank

#16 of 46

Among South Carolina counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 144 NBI-tracked bridges by lowest applicable component rating.

Good

25% (36)

Fair

70.8% (102)

Poor

4.2% (6)

Greenwood County's Poor-condition bridges carry 11,700 vehicle crossings a day

That is 3.9% of the county's reported daily bridge traffic on 4.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 1,950 crossings a day against 1,541 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 144 of 144 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

59.7% of Greenwood County's bridges have passed the 50-year mark

86 of the 144 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 25% 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 60.7% of the county's Poor-condition bridge traffic

SC 246 over CSX RAIL ROAD, built 1958, carries 7,100 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 6-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 11,700 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1920s

2
1930s

8
1940s

8
1950s

23
1960s

36
1970s

24
1980s

17
1990s

13
2000s

8
2010s

3
2020s

2

What this shows Construction peaked in the 1960s, when 36 of the county's bridges still in the inventory were built, which is 25% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year is 1971, 6 years older than the South Carolina average of 1977.

How Greenwood County compares with South Carolina's closest counties by inventory size

The 5 South Carolina counties nearest Greenwood County in number of bridges, with their condition splits. Its 4.2% Poor share is the 3rd-lowest of these 6. Its average build year of 1971 against a peer-group mean of 1974 is in line with the group.

Showing the 5 closest of 45 South Carolina counties eligible for comparison.

Bridge inventory size and condition shares for Greenwood County and the 5 South Carolina counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Abbeville County	163	41.1%	55.8%	3.1%	1975
Greenwood County (this page)	144	25%	70.8%	4.2%	1971
Fairfield County	139	36.7%	55.4%	7.9%	1976
Union County	131	35.9%	49.6%	14.5%	1975
Jasper County	129	24.8%	75.2%	0%	1970
Dillon County	128	25%	70.3%	4.7%	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 Greenwood 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 Greenwood County, both outside South Carolina so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside SC (144 bridges here).

Muscatine County, IA · 144 bridges
Anderson County, KS · 144 bridges
Webster County, KY · 144 bridges
Muskegon County, MI · 144 bridges

Similar average build year

Nearest mean year-built outside SC (1971 here).

Wayne County, MI · avg 1971 · 1,026 bridges
Baltimore County, MD · avg 1971 · 783 bridges
Washington County, PA · avg 1971 · 655 bridges
Linn County, OR · avg 1971 · 566 bridges

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

All 144 Good 36 Fair 102 Poor 6

All bridges (144)

Sort:

Greenwood County Bridge Snapshot

Condition distribution

Greenwood County's Poor-condition bridges carry 11,700 vehicle crossings a day

59.7% of Greenwood County's bridges have passed the 50-year mark

One structure carries 60.7% of the county's Poor-condition bridge traffic

How Greenwood County compares with South Carolina's closest counties by inventory size

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

All bridges (144)

S-24-271

C-24-177

S-24-62

S-24-112

SC 10

S-24-104

S-24-180

S-24-102

S-24-230

S-24-180

S-24-48

S-24-108

S-24-166

S-24-178

S-24-104

S-24-229

S-24-397

S-24-50

S-24-166

S-24-54

S-24-225

S-24-44

S-24-48

S-24-44

S-24-48

S-24-164

S-24-166

S-24-27

S-24-134

S-24-268

S-24-48

S-24-398

S-24-386

S-24-412

S-24-456

S-24-456

S-24-489

S-24-456

C-24-61

S-24-123

S-24-46

S-24-103

S-24-382

S-24-431

S-24-374

S-24-418

S-24-422

S-24-186

C-24-95

S-24-490

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