Total bridges
19
Public highway bridges in Martin County
County profile · official public datasets
Martin County, TX
19 public highway bridges tracked in the FHWA National Bridge Inventory: 68.4% rated Good, 31.6% Fair, 0% Poor.
- 19
- Public bridges
- 68.4%
- Good condition
- 0%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Martin County posts a better-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.
- Top 31%
- lowest Poor share in state
- 0%
- Poor-condition share
- 19
- 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.
Martin County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Martin County ranks #76 of 247 Texas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0%). Martin County, Texas contains 19 public highway bridges. Roughly 68.4% are rated “Good,” 31.6% “Fair,” and 0% “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.
Good condition
68.4%
13 of 19 rated 7-9
Fair condition
31.6%
6 of 19 rated 5-6
Poor condition
0%
0 of 19 rated 4 or below
In-state Poor-share rank
#76 of 247
Among Texas counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 19 NBI-tracked bridges by lowest applicable component rating.
Good 68.4% (13)
Fair 31.6% (6)
Poor 0% (0)
52.6% of Martin County's bridges have passed the 50-year mark
10 of the 19 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 68.4% 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.
When Martin County's bridges were built
19 bridges with a recorded construction year, grouped by decade
- 1950s 2
1950–1959
2 bridges
- 1960s
1960–1969
8 bridges
- 1980s 1
1980–1989
1 bridges
- 1990s 2
1990–1999
2 bridges
- 2000s
2000–2009
4 bridges
- 2020s 2
2020–2029
2 bridges
What this shows Construction peaked in the 1960s, when 8 of the county's bridges still in the inventory were built, which is 42.1% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1984) matches the Texas average (1980).
How Martin County compares with Texas's closest counties by inventory size
The 5 Texas counties nearest Martin County in number of bridges, with their condition splits. Its 0% Poor share is the 3rd-lowest of these 6. Its average build year of 1984 against a peer-group mean of 1968 is 16 years newer.
Showing the 5 closest of 246 Texas counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Aransas County | 22 | 77.3% | 22.7% | 0% | 1997 |
| Crane County | 19 | 31.6% | 68.4% | 0% | 1943 |
| Martin County (this page) | 19 | 68.4% | 31.6% | 0% | 1984 |
| Briscoe County | 18 | 50% | 50% | 0% | 1964 |
| Hartley County | 17 | 47.1% | 52.9% | 0% | 1967 |
| Kenedy County | 17 | 82.4% | 17.6% | 0% | 1969 |
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 Martin 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 Martin County, both outside Texas so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside TX (19 bridges here).
- Gilpin County, CO · 19 bridges
- Blaine County, NE · 19 bridges
- Thomas County, NE · 19 bridges
- Foster County, ND · 19 bridges
Similar average build year
Nearest mean year-built outside TX (1984 here).
- Hennepin County, MN · avg 1984 · 936 bridges
- Duval County, FL · avg 1984 · 831 bridges
- El Paso County, CO · avg 1984 · 686 bridges
- Steuben County, NY · avg 1984 · 627 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Good-condition bridges (13)
IH 20
GoodOver: DRAW
0.45 MI E OF SH 137, Martin, TX
Built 1968 Load: 23.6 t ADT: 22,806
IH 20 BUS
GoodOver: DRAIN
0.65 MI E OF SH 137, Martin, TX
Built 1963 Load: 23.6 t ADT: 3,580
IH 20 BUS
GoodOver: DRAIN
0.55 MI E OF SH 137, Martin, TX
Built 1963 Load: 23.6 t ADT: 3,580
SH 349
GoodOver: DRAW
9.04 MI S OF FM 87/SH 176, Martin, TX
Built 1950 Load: 23.6 t ADT: 8,719
FM 829
GoodOver: DRAIN
1.45 MI N OF FM 2002, Martin, TX
Built 1990 Load: 23.6 t ADT: 805
FM 829
GoodOver: DRAIN
2.65 MI S OF FM 2002, Martin, TX
Built 1990 Load: 23.6 t ADT: 948
IH 20 EB
GoodOver: BI 20
2.06 Mi W of SH 137, Martin, TX
Built 2022 Load: 32.7 t ADT: 11,742
IH 20 WB
GoodOver: BI 20
2.06 Mi W of SH 137, Martin, TX
Built 2022 Load: 32.7 t ADT: 11,742
SH 349
GoodOver: Draw
9.095 Mi E of SH 158, Martin, TX
Built 2009 Load: 32.7 t ADT: 5,001
SH 349
GoodOver: Draw
7.383 Mi E of SH 158, Martin, TX
Built 2009 Load: 32.7 t ADT: 5,001
SH 349
GoodOver: Draw
8.704 Mi E of SH 158, Martin, TX
Built 2009 Load: 32.7 t ADT: 5,001
FM 846
GoodOver: Sulpher Springs Draw
5.00 Mi E of SH 137, Martin, TX
Built 1988 Load: 32.7 t ADT: 2,504
West Frontage Road
GoodOver: Draw
2.14 Mi E of SH 158, Martin, TX
Built 2009 Load: 32.7 t ADT: 5,006
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges
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.