Total bridges
3,230
Public highway bridges in Dallas County
County profile · official public datasets
Dallas County, TX
3,230 public highway bridges tracked in the FHWA National Bridge Inventory: 42.5% rated Good, 56.4% Fair, 1% Poor.
- 3,230
- Public bridges
- 42.5%
- Good condition
- 1%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Dallas County posts a higher-than-median Poor-condition share among rated counties in the state across large county bridge inventory.
- 132nd
- of 247 on Poor share
- 1%
- Poor-condition share
- 3,230
- public highway bridges
- 1983
- 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.
Dallas County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Dallas County ranks #132 of 247 Texas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 1%). Dallas County, Texas contains 3,230 public highway bridges. Roughly 42.5% are rated “Good,” 56.4% “Fair,” and 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.
Good condition
42.5%
1,374 of 3,230 rated 7-9
Fair condition
56.4%
1,823 of 3,230 rated 5-6
Poor condition
1%
33 of 3,230 rated 4 or below
In-state Poor-share rank
#132 of 247
Among Texas counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 3,230 NBI-tracked bridges by lowest applicable component rating.
Good 42.5% (1,374)
Fair 56.4% (1,823)
Poor 1% (33)
Dallas County's Poor-condition bridges carry 1,373,701 vehicle crossings a day
That is 1.7% of the county's reported daily bridge traffic on 1% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 41,627 crossings a day against 20,944 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 3,230 of 3,230 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
41.4% of Dallas County's bridges have passed the 50-year mark
1,338 of the 3,230 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 42.5% 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 14.2% of the county's Poor-condition bridge traffic
IH 35E over Oak Lawn Ave & Turtle Ck, built 1959, carries 194,462 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 33-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 1,373,701 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Dallas County's bridges were built
3,230 bridges with a recorded construction year, grouped by decade
- 1900s 2
1900–1909
2 bridges
- 1910s 7
1910–1919
7 bridges
- 1920s 12
1920–1929
12 bridges
- 1930s 62
1930–1939
62 bridges
- 1940s 58
1940–1949
58 bridges
- 1950s 232
1950–1959
232 bridges
- 1960s
1960–1969
570 bridges
- 1970s
1970–1979
619 bridges
- 1980s
1980–1989
411 bridges
- 1990s
1990–1999
321 bridges
- 2000s
2000–2009
433 bridges
- 2010s
2010–2019
425 bridges
- 2020s 78
2020–2029
78 bridges
What this shows Construction peaked in the 1970s, when 619 of the county's bridges still in the inventory were built, which is 19.2% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1983) matches the Texas average (1980).
How Dallas County compares with Texas's closest counties by inventory size
The 5 Texas counties nearest Dallas County in number of bridges, with their condition splits. Its 1% Poor share is the 6th-lowest of these 6. Its average build year of 1983 against a peer-group mean of 1989 is 6 years older.
Showing the 5 closest of 246 Texas counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Harris County | 4,029 | 50.7% | 48.7% | 0.6% | 1989 |
| Dallas County (this page) | 3,230 | 42.5% | 56.4% | 1% | 1983 |
| Tarrant County | 2,617 | 58.2% | 41.4% | 0.4% | 1990 |
| Bexar County | 2,342 | 55% | 44.7% | 0.3% | 1983 |
| Travis County | 1,544 | 63.9% | 35.9% | 0.2% | 1988 |
| Williamson County | 1,170 | 67.4% | 32.2% | 0.3% | 1995 |
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 Dallas 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 Dallas County, both outside Texas so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside TX (3,230 bridges here).
- Los Angeles County, CA · 3,547 bridges
- Maricopa County, AZ · 2,847 bridges
- Cook County, IL · 1,721 bridges
- San Diego County, CA · 1,632 bridges
Similar average build year
Nearest mean year-built outside TX (1983 here).
- Sedgwick County, KS · avg 1983 · 1,333 bridges
- Will County, IL · avg 1983 · 649 bridges
- Bernalillo County, NM · avg 1983 · 496 bridges
- Black Hawk County, IA · avg 1983 · 489 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (3,230)
IH 635 WB CONN E
GoodOver: IH 35E SB CONN A
IH 35E & IH 635 I/C, Dallas, TX
Built 2016 Load: 32.7 t ADT: 8,000
NB CD ENTRANCE RP
GoodOver: CONTINENTAL AVE/LAMAR ST
0.1 Mi N of LP 366, Dallas, TX
Built 2021 Load: 32.7 t ADT: 20,700
NB CD
GoodOver: Hi Line Dr & IH35E NB FR
0.4 Mi N of LP 366, Dallas, TX
Built 2021 Load: 32.7 t ADT: 27,900
CD EX RP-W RODGERS
GoodOver: IH 35E CONNS
0.25 Mi N of LP 366, Dallas, TX
Built 2021 Load: 32.7 t ADT: 42,800
IH 35E SB FR
GoodOver: DRAINAGE DITCH
0.4 MI SE OF W BELT LINE, Dallas, TX
Built 2019 Load: 32.7 t ADT: 33,000
IH 35E NB FR
GoodOver: Drainage Ditch
0.4 MI SE OF W BELT LINE, Dallas, TX
Built 2018 Load: 32.7 t ADT: 12,600
SP 366 WB On Rp C
GoodOver: R.O.W.
0.1 Mi SW of Field St, Dallas, TX
Built 1981 Load: 32.7 t ADT: 15,770
SP 366 WB
GoodOver: Routh St
0.2 Mi NE of N Pearl St, Dallas, TX
Built 1983 Load: 32.7 t ADT: 78,860
SP 366 EB
GoodOver: Routh St
0.2 Mi NE of N Pearl St, Dallas, TX
Built 1983 Load: 32.7 t ADT: 78,860
SP 366 Connector F
GoodOver: I35 SBFR Cont Rivfront
0.1 Mi W of IH 35E, Dallas, TX
Built 2011 Load: 32.7 t ADT: 8,500
SP 366 Off-Ramp R
GoodOver: R.O.W.
0.1 Mi W of IH 35E, Dallas, TX
Built 2011 Load: 32.7 t ADT: 2,456
US 175 WB
GoodOver: 2ND AVE
1.90 MI E OF SH 310, Dallas, TX
Built 1964 Load: 32.7 t ADT: 31,210
US 175/ CF Hawn F
GoodOver: Draw
0.15 MI SW OF SM WRIGHT, Dallas, TX
Built 2020 Load: 32.7 t ADT: 32,500
US 175 SB
GoodOver: Lamar St & SM Wright
0.9 mi SE of IH45, Dallas, TX
Built 2019 Load: 32.7 t ADT: 32,500
US 175/CF Hawn NBM
GoodOver: S Lamar St & SM Wright
US 175 at SM Wright, Dallas, TX
Built 2020 Load: 32.7 t ADT: 32,500
US 175
GoodOver: BEXAR ST
0.30 mi E of SH310, Dallas, TX
Built 2020 Load: 32.7 t ADT: 31,500
US 67 NB FR
GoodOver: TEN MILE CREEK
2.45 MI SW OF IH 20, Dallas, TX
Built 1975 Load: 32.7 t ADT: 2,220
PLEASANT RUN RD
GoodOver: US 67
4.7 MI SW OF IH 20, Dallas, TX
Built 1983 Load: 32.7 t ADT: 3,930
US 67 NBML
GoodOver: MAIN ST
2.80 MI SW OF IH 20, Dallas, TX
Built 1983 Load: 32.7 t ADT: 42,028
DANIELDALE RD
GoodOver: US 67
2.0 MI SW OF IH 20, Dallas, TX
Built 1983 Load: 32.7 t ADT: 14,432
US 67 SB
GoodOver: MAUK BRANCH
1.50 MI SW OF IH 20, Dallas, TX
Built 1983 Load: 32.7 t ADT: 35,882
US 67 NB
GoodOver: MAUK BRANCH
1.50 MI SW OF IH 20, Dallas, TX
Built 1983 Load: 32.7 t ADT: 40,361
COCKRELL HILL RD
GoodOver: US 67
1.25 MI SW OF IH 20, Dallas, TX
Built 1983 Load: 32.7 t ADT: 22,611
US 67 SBML
GoodOver: MT LEBANON RD
8.5 MI SW OF IH 20, Dallas, TX
Built 1991 Load: 32.7 t ADT: 23,839
US 67 NBML
GoodOver: MT LEBANON RD
8.5 MI SW OF IH 20, Dallas, TX
Built 1991 Load: 32.7 t ADT: 20,685
TIDWELL ST
GoodOver: US 67
7.1 MI SW OF IH 20, Dallas, TX
Built 1991 Load: 32.7 t ADT: 500
US 67 NB FR
GoodOver: FIVE MILE CREEK
3.65 MI NE OF IH 20, Dallas, TX
Built 2006 Load: 32.7 t ADT: 2,281
US 67 SB
GoodOver: SWANSEE ST
2.75 MI NE OF IH 20, Dallas, TX
Built 1969 Load: 32.7 t ADT: 40,131
US 67 NB
GoodOver: SWANSEE ST
2.75 MI NE OF IH 20, Dallas, TX
Built 1969 Load: 32.7 t ADT: 40,538
US 67 SB
GoodOver: 5 MILE CRK & PENTAGON PK
3.65 MI NE OF IH 20, Dallas, TX
Built 1969 Load: 32.7 t ADT: 43,493
US 67 NB
GoodOver: 5 MILE CRK & PENTAGON PK
3.65 MI NE OF IH 20, Dallas, TX
Built 1969 Load: 32.7 t ADT: 42,437
US 67 SB
GoodOver: POLK ST
3.90 MI NE OF IH 20, Dallas, TX
Built 1969 Load: 32.7 t ADT: 43,493
US 67 NB
GoodOver: POLK ST
3.90 MI NE OF IH 20, Dallas, TX
Built 1969 Load: 32.7 t ADT: 42,437
US 67 SB
GoodOver: CAMP WISDOM RD
0.70 MI NE OF IH 20, Dallas, TX
Built 1974 Load: 32.7 t ADT: 48,459
US 67 NB
GoodOver: CAMP WISDOM RD
0.70 MI NE OF IH 20, Dallas, TX
Built 1974 Load: 32.7 t ADT: 47,475
RED BIRD LN
GoodOver: US 67
1.55 MI NE OF IH 20, Dallas, TX
Built 1973 Load: 32.7 t ADT: 2,510
US 67 SB
GoodOver: W. Kiest Blvd.
4.4 MI NE of IH 20, Dallas, TX
Built 2021 Load: 32.7 t ADT: 41,247
SH 78 NB
GoodOver: SH 190
SH 78 NB and SH 190, Dallas, TX
Built 1991 Load: 32.7 t ADT: 15,382
SH 78 SB
GoodOver: SH 190
SH 78 and SH 190, Dallas, TX
Built 1991 Load: 32.7 t ADT: 20,874
SH 114 WB
GoodOver: Freeport Pkwy
3.30 Mi NW of SH 161, Dallas, TX
Built 1973 Load: 32.7 t ADT: 45,220
SH 114 EB
GoodOver: Freeport Pkwy
3.30 Mi NW of SH 161, Dallas, TX
Built 1973 Load: 32.7 t ADT: 45,220
Esters Blvd
GoodOver: SH 114
2.50 Mi NW of SH 161, Dallas, TX
Built 1985 Load: 32.7 t ADT: 13,587
SH 114 WB On-Ramp
GoodOver: SH 114 WB Off-Ramp
0.2 Mi SE of SH 161, Dallas, TX
Built 1987 Load: 32.7 t ADT: 9,070
SP 348 WB
GoodOver: Elm Frk Trinity E Relief
1.8 Mi W of IH 35E, Dallas, TX
Built 1990 Load: 32.7 t ADT: 8,237
Belt Line Rd
GoodOver: SH 114
1.35 Mi NW of SH 161, Dallas, TX
Built 1993 Load: 32.7 t ADT: 10,210
SH 161 NBFR
GoodOver: SH 114
5.1 Mi NW of LP 12, Dallas, TX
Built 1993 Load: 32.7 t ADT: 15,740
SH 114 WBFR T/A
GoodOver: SH 114
5.0 Mi NW of LP 12, Dallas, TX
Built 1993 Load: 32.7 t ADT: 7,164
SH 114 West T/A
GoodOver: SH 114
0.1 Mi W of SH 161, Dallas, TX
Built 2013 Load: 32.7 t ADT: 7,500
Spur 348 EB
GoodOver: Las Colinas Blvd
2.6 Mi West of Loop 12, Dallas, TX
Built 2012 Load: 32.7 t ADT: 10,202
Spur 348 WB
GoodOver: Las Colinas Blvd
2.6 Mi West of Loop 12, Dallas, TX
Built 2012 Load: 32.7 t ADT: 8,237
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.