Total bridges
163
Public highway bridges in Abbeville County
County profile · official public datasets
163 public highway bridges tracked in the FHWA National Bridge Inventory: 41.1% rated Good, 55.8% Fair, 3.1% Poor.
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Abbeville County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
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.
According to the Federal Highway Administration's 2024 National Bridge Inventory, Abbeville County ranks #12 of 46 South Carolina counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.1%). Abbeville County, South Carolina contains 163 public highway bridges. Roughly 41.1% are rated “Good,” 55.8% “Fair,” and 3.1% “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
163
Public highway bridges in Abbeville County
Good condition
41.1%
67 of 163 rated 7-9
Fair condition
55.8%
91 of 163 rated 5-6
Poor condition
3.1%
5 of 163 rated 4 or below
In-state Poor-share rank
#12 of 46
Among South Carolina counties with 5+ bridges, lower share ranks better
Share of 163 NBI-tracked bridges by lowest applicable component rating.
That is 0.6% of the county's reported daily bridge traffic on 3.1% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 175 crossings a day against 1,260 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 163 of 163 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
88 of the 163 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 41.1% 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.
S-1-33 over LONG CANE CREEK, built 1961, carries 325 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 5-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 875 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
163 bridges with a recorded construction year, grouped by decade
1920–1929
2 bridges
1930–1939
10 bridges
1940–1949
15 bridges
1950–1959
14 bridges
1960–1969
33 bridges
1970–1979
21 bridges
1980–1989
22 bridges
1990–1999
14 bridges
2000–2009
16 bridges
2010–2019
8 bridges
2020–2029
8 bridges
What this shows Construction peaked in the 1960s, when 33 of the county's bridges still in the inventory were built, which is 20.2% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1975) matches the South Carolina average (1977).
The 5 South Carolina counties nearest Abbeville County in number of bridges, with their condition splits. Its 3.1% Poor share is the 2nd-lowest of these 6. Its average build year of 1975 against a peer-group mean of 1975 is in line with the group.
Showing the 5 closest of 45 South Carolina counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Lancaster County | 181 | 29.3% | 58% | 12.7% | 1967 |
| Darlington County | 174 | 32.8% | 62.1% | 5.2% | 1974 |
| Kershaw County | 174 | 39.7% | 55.2% | 5.2% | 1978 |
| Clarendon County | 170 | 25.3% | 72.9% | 1.8% | 1976 |
| Sumter County | 166 | 44% | 45.2% | 10.8% | 1981 |
| Abbeville County (this page) | 163 | 41.1% | 55.8% | 3.1% | 1975 |
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 Abbeville County's. Source: FHWA National Bridge Inventory, 2024 release.
Two NBI-derived peer sets for Abbeville County, both outside South Carolina so the neighborhoods are not the same-state size table above.
Nearest county inventories outside SC (163 bridges here).
Nearest mean year-built outside SC (1975 here).
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Over: LONG CANE CREEK
4.3 MI N W OF ABBEVILLE, Abbeville, SC
Over: GRAYS CREEK
3.8 MI SE DUE WEST, Abbeville, SC
Over: NORRIS CRK
1.0 MI N E OF ABBEVILLE, Abbeville, SC
Over: CSX RR
6.9 MI SW ABBEVILLE, Abbeville, SC
Over: LONG CANE CREEK
4.1MI NE ABBEVILLE, Abbeville, SC
Over: SHANKLIN CREEK
9.5 MI N W OF ABBEVILLE, Abbeville, SC
Over: MCCORD CREEK
2.2 MI NE ABBEVILLE, Abbeville, SC
Over: CURLTAIL CREEK
7.0 MI N E OF ABBEVILLE, Abbeville, SC
Over: LONG CANE CR
6.8 MI NE OF ABBEVILLE, Abbeville, SC
Over: HOGSKIN CREEK
3.0MI W DUE WEST, Abbeville, SC
Over: LONG CANE CREEK
7.0MI SE OF ABBEVILLE, Abbeville, SC
Over: CURTAIL CREEK
NO DATA ENTERED, Abbeville, SC
Over: JOHNS CREEK
5.3 MI NE ABBEVILLE, Abbeville, SC
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.