Total bridges
53
Public highway bridges in Throckmorton County
County profile · official public datasets
Throckmorton County, TX
53 public highway bridges tracked in the FHWA National Bridge Inventory: 56.6% rated Good, 41.5% Fair, 1.9% Poor.
- 53
- Public bridges
- 56.6%
- Good condition
- 1.9%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Throckmorton County pairs a higher-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.
- 177th
- of 247 on Poor share
- 1.9%
- Poor-condition share
- 53
- public highway bridges
- 1954
- 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.
Throckmorton County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Throckmorton County ranks #177 of 247 Texas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 1.9%). Throckmorton County, Texas contains 53 public highway bridges. Roughly 56.6% are rated “Good,” 41.5% “Fair,” and 1.9% “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
56.6%
30 of 53 rated 7-9
Fair condition
41.5%
22 of 53 rated 5-6
Poor condition
1.9%
1 of 53 rated 4 or below
In-state Poor-share rank
#177 of 247
Among Texas counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 53 NBI-tracked bridges by lowest applicable component rating.
Good 56.6% (30)
Fair 41.5% (22)
Poor 1.9% (1)
Throckmorton County's Poor-condition bridges carry 100 vehicle crossings a day
That is 0.4% of the county's reported daily bridge traffic on 1.9% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 100 crossings a day against 437 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 53 of 53 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
77.4% of Throckmorton County's bridges have passed the 50-year mark
41 of the 53 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 56.6% 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 100% of the county's Poor-condition bridge traffic
FM 923 over BRUSH KNOB CREEK, built 1948, carries 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 1-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 100 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Throckmorton County's bridges were built
53 bridges with a recorded construction year, grouped by decade
- 1920s
1920–1929
15 bridges
- 1930s
1930–1939
9 bridges
- 1940s 5
1940–1949
5 bridges
- 1950s
1950–1959
6 bridges
- 1960s 5
1960–1969
5 bridges
- 1970s 3
1970–1979
3 bridges
- 1980s 4
1980–1989
4 bridges
- 1990s 1
1990–1999
1 bridges
- 2000s 3
2000–2009
3 bridges
- 2020s 2
2020–2029
2 bridges
What this shows Construction peaked in the 1920s, when 15 of the county's bridges still in the inventory were built, which is 28.3% of those with a recorded year. That cohort is now 95 to 104 years old in the 2024 inventory. Its average build year is 1954, 26 years older than the Texas average of 1980.
How Throckmorton County compares with Texas's closest counties by inventory size
The 5 Texas counties nearest Throckmorton County in number of bridges, with their condition splits. Its 1.9% Poor share is the 5th-lowest of these 6. Its average build year of 1954 against a peer-group mean of 1965 is 11 years older.
Showing the 5 closest of 246 Texas counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Sterling County | 54 | 55.6% | 44.4% | 0% | 1966 |
| Ward County | 54 | 18.5% | 79.6% | 1.9% | 1964 |
| Rains County | 53 | 45.3% | 50.9% | 3.8% | 1979 |
| Terrell County | 53 | 54.7% | 45.3% | 0% | 1957 |
| Throckmorton County (this page) | 53 | 56.6% | 41.5% | 1.9% | 1954 |
| Borden County | 52 | 53.8% | 46.2% | 0% | 1957 |
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 Throckmorton 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 Throckmorton County, both outside Texas so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside TX (53 bridges here).
- Cleburne County, AR · 53 bridges
- Citrus County, FL · 53 bridges
- Lumpkin County, GA · 53 bridges
- Stewart County, GA · 53 bridges
Similar average build year
Nearest mean year-built outside TX (1954 here).
- Glenn County, CA · avg 1954 · 242 bridges
- Graham County, AZ · avg 1954 · 179 bridges
- Bristol city County, VA · avg 1954 · 34 bridges
- Scott County, KS · avg 1954 · 22 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Good-condition bridges (30)
US 183
GoodOver: South Wagon Creek
3.0 Mi S of Baylor Co Ln, Throckmorton, TX
Built 1929 Load: 23.6 t ADT: 450
US 183
GoodOver: Draw
0.5 Mi S of SH 79, Throckmorton, TX
Built 1929 Load: 23.6 t ADT: 2,375
US 183
GoodOver: Draw
3.2 Mi N of FM 923, Throckmorton, TX
Built 1929 Load: 23.6 t ADT: 999
US 183
GoodOver: DRAW
1.2 MI N OF FM 923, Throckmorton, TX
Built 1929 Load: 23.6 t ADT: 1,027
US 183
GoodOver: DRAW
5.9 MI S OF US 380, Throckmorton, TX
Built 1929 Load: 23.6 t ADT: 976
SH 79
GoodOver: DRAIN
0.5 MI W OF FM 1711 S, Throckmorton, TX
Built 1929 Load: 23.6 t ADT: 330
SH 79
GoodOver: DRAW
1.0 MI NE OF US 283, Throckmorton, TX
Built 1929 Load: 23.6 t ADT: 414
US 380
GoodOver: West Fork Tank Creek
0.25 Mi E of SH 222, Throckmorton, TX
Built 1932 Load: 23.6 t ADT: 667
US 380
GoodOver: DRAW
0.8 MI W OF FM 1711, Throckmorton, TX
Built 1938 Load: 23.6 t ADT: 682
US 380
GoodOver: DRAW
2.5 MI E OF FM 1171, Throckmorton, TX
Built 1938 Load: 23.6 t ADT: 615
US 380
GoodOver: DRAW
AT YOUNG CO LINE, Throckmorton, TX
Built 1938 Load: 23.6 t ADT: 615
US 380
GoodOver: DRAW
0.8 MI E OF US 183/283, Throckmorton, TX
Built 1937 Load: 23.6 t ADT: 682
US 380
GoodOver: ELM CRK RELIEF
2.1 MI W OF FM 1711, Throckmorton, TX
Built 1934 Load: 23.6 t ADT: 682
SH 222
GoodOver: Bow Creek
2.0 Mi SE of Knox Co Ln, Throckmorton, TX
Built 1956 Load: 23.6 t ADT: 100
SH 222
GoodOver: Squaw Creek
1.6 MI E OF HASKELL CO LN, Throckmorton, TX
Built 1956 Load: 23.6 t ADT: 100
FM 1710
GoodOver: MIDDLE KINGS CREEK
1.4 MI N OF US 183, Throckmorton, TX
Built 1954 Load: 23.6 t ADT: 221
FM 1711
GoodOver: LEOPARD CREEK
1.6 MI N OF SH 79, Throckmorton, TX
Built 1954 Load: 23.6 t ADT: 100
FM 1711
GoodOver: DRAW
0.25 MI S OF SH 79, Throckmorton, TX
Built 1959 Load: 23.6 t ADT: 100
FM 2356
GoodOver: HASHKNIFE CREEK
4.4 MI N OF SH 79, Throckmorton, TX
Built 1963 Load: 23.6 t ADT: 100
FM 2850
GoodOver: GIVENS CREEK
0.25 MI S OF FM 209, Throckmorton, TX
Built 1965 Load: 23.6 t ADT: 100
FM 2356
GoodOver: BOGGY CREEK
4.0 MI N OF SH 79, Throckmorton, TX
Built 1963 Load: 30.8 t ADT: 100
SH 79
GoodOver: BOGGY CREEK
2.75 MI. S OF FM 1711, Throckmorton, TX
Built 2007 Load: 32.7 t ADT: 330
US 380
GoodOver: ELM CREEK
1.9 MI W OF FM 1711, Throckmorton, TX
Built 2007 Load: 32.7 t ADT: 682
SH 222
GoodOver: Miller Creek
0.5 Mi E of Haskell Co Ln, Throckmorton, TX
Built 2009 Load: 32.7 t ADT: 100
FM 209
GoodOver: DRAW
3.6 MI W YOUNG CO LN, Throckmorton, TX
Built 1984 Load: 32.7 t ADT: 138
FM 209
GoodOver: Middle Kings Creek
4.3 MI W OF YOUNG CO LN, Throckmorton, TX
Built 2021 Load: 32.7 t ADT: 125
FM 3327
GoodOver: KINGS CREEK
2.7 MI E OF US 183, Throckmorton, TX
Built 1977 Load: 32.7 t ADT: 100
CR 111/SIGN CR 397
GoodOver: KINGS CREEK
1.40 MI S OF JONES RD, Throckmorton, TX
Built 2020 Load: 32.7 t ADT: 10
CR 154/ JONES RD
GoodOver: EAST KINGS CR
2.60 MI E OF FM 3327 END, Throckmorton, TX
Built 1989 Load: 34.5 t ADT: 100
CR 171/SIGN CR 450
GoodOver: HOG CREEK
4.70 MI N OF END FM 2459, Throckmorton, TX
Built 1992 Load: 40.8 t ADT: 100
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.