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.

Total bridges

3,230

Public highway bridges in Dallas County

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

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).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

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.

Bridge inventory size and condition shares for Dallas County and the 5 Texas counties closest to it in inventory size
County Bridges Poor
Harris County 4,029 0.6%
Dallas County (this page) 3,230 1%
Tarrant County 2,617 0.4%
Bexar County 2,342 0.3%
Travis County 1,544 0.2%
Williamson County 1,170 0.3%

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).

Similar average build year

Nearest mean year-built outside TX (1983 here).

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

Fair-condition bridges (1,823)

WINTERGREEN RD

Fair

Over: TEN MILE CREEK TRIB

0.1 MI W OF WESTMORELAN, Dallas, TX

Built 1960 Load: 24.5 t ADT: 3,900

WINTERGREEN RD

Fair

Over: TEN MILE CREEK TRIB

0.3 MI W OF POLK ST, Dallas, TX

Built 1989 Load: 24.5 t ADT: 3,000

EAST FORK RD

Fair

Over: DUCK CREEK

1.7 MI N OF US 80, Dallas, TX

Built 1950 Load: 24.5 t ADT: 800

TRIPP RD

Fair

Over: LONG CREEK BRANCH

0.3 MI W OF COLLINS RD, Dallas, TX

Built 1950 Load: 24.5 t ADT: 2,436

LAWSON RD

Fair

Over: LONG CREEK

0.05 MI N OF SCYENE RD, Dallas, TX

Built 1976 Load: 24.5 t ADT: 1,170

WHEATLAND RD

Fair

Over: MAUK CREEK

0.5 MI W OF S MAIN ST, Dallas, TX

Built 1970 Load: 24.5 t ADT: 15,376

E Center St

Fair

Over: Mauk Branch

0.55 MI E of Main St, Dallas, TX

Built 1985 Load: 24.5 t ADT: 1,350

S MAIN ST

Fair

Over: MAUK CREEK

0.1 MI S OF DANIELDALE, Dallas, TX

Built 1989 Load: 24.5 t ADT: 10,123

S Main St

Fair

Over: Ten Mile Creek

0.25 Mi N of US 67, Dallas, TX

Built 1988 Load: 24.5 t ADT: 10,000

DANIELDALE RD WB

Fair

Over: MAUK CREEK

0.12 MI W OF S MAIN ST, Dallas, TX

Built 1950 Load: 24.5 t ADT: 15,989

DANIELDALE RD EB

Fair

Over: TEN MILE CREEK

0.4 MI E OF CEDAR HILL, Dallas, TX

Built 1989 Load: 24.5 t ADT: 13,800

DANIELDALE RD EB

Fair

Over: TEN MILE CREEK TRIB

1.7 MI W OF US 67, Dallas, TX

Built 1990 Load: 24.5 t ADT: 3,000

Green Hills Rd

Fair

Over: Ten Mile Creek

0.15 Mi S of Big Stone, Dallas, TX

Built 1970 Load: 24.5 t ADT: 390

CEDAR HILL RD

Fair

Over: TEN MILE CREEK

0.3 MI N OF DANIELDALE, Dallas, TX

Built 1950 Load: 24.5 t ADT: 1,909

JOE WILSON RD

Fair

Over: BENTLE BRANCH

0.1 MI SE OF CEDAR HILL, Dallas, TX

Built 1950 Load: 24.5 t ADT: 2,100

PLEASANT RUN RD

Fair

Over: COTTONWOOD CREEK TRIB

0.2 MI E OF IH 45, Dallas, TX

Built 1979 Load: 24.5 t ADT: 2,100

KLEBERG RD

Fair

Over: HICKORY CREEK TRIB

0.4 MI NW OF SIMONDS RD, Dallas, TX

Built 1960 Load: 24.5 t ADT: 400

MALLOY BRIDGE RD

Fair

Over: E FORK TRINITY RIVER

0.25 MI SW OF KAUFMAN CO, Dallas, TX

Built 1985 Load: 24.5 t ADT: 320

MALLOY BRIDGE RD

Fair

Over: E FK TRINITY RIV REL

1.20 MI NE OF US 175, Dallas, TX

Built 1985 Load: 24.5 t ADT: 320

CAPRICORN ST

Fair

Over: RED OAK CREEK

0.2 MI W of S Clark Rd, Dallas, TX

Built 1998 Load: 24.5 t ADT: 231

Oak Gate Ln

Fair

Over: Lake June Branch

0.2 Mi W of N Masters Dr, Dallas, TX

Built 1980 Load: 24.5 t ADT: 2,200

East 14th St.

Fair

Over: Drainage Ditch

0.05 Mi SW of Royal Ln, Dallas, TX

Built 1980 Load: 24.5 t ADT: 231

Cavern Dr

Fair

Over: S Mesquite Creek Trib

0.20 MI E of McKenzie Rd, Dallas, TX

Built 2003 Load: 24.5 t ADT: 400

BEAR CREEK RD

Fair

Over: BEAR CREEK

0.1 MI E OF IH 35, Dallas, TX

Built 1938 Load: 24.5 t ADT: 1,200

WEST MAIN ST

Fair

Over: MILL BRANCH CREEK

1.2 MI W OF BELT LINE RD, Dallas, TX

Built 1954 Load: 24.5 t ADT: 2,350

Belt Line Rd

Fair

Over: Ten Mile Creek Trib

0.10 MI W OF FERRIS RD, Dallas, TX

Built 1960 Load: 24.5 t ADT: 1,630

BELT LINE RD

Fair

Over: TEN MILE CREEK TRIB

0.30 MI E OF IH 35E, Dallas, TX

Built 1955 Load: 24.5 t ADT: 18,303

BLUEGROVE DR

Fair

Over: TEN MILE CREEK

0.2 MI S OF WEST MAIN ST, Dallas, TX

Built 1970 Load: 24.5 t ADT: 602

Houston School Rd

Fair

Over: Bear Creek

0.20 MI S OF BEAR CREEK, Dallas, TX

Built 1960 Load: 24.5 t ADT: 1,330

HOUSTON SCHOOL RD

Fair

Over: TEN MILE CREEK

0.2 MILES S OF W MAIN ST, Dallas, TX

Built 1950 Load: 24.5 t ADT: 1,570

University Hills

Fair

Over: Ricketts Branch Trib

0.20 MI N of IH 20, Dallas, TX

Built 1970 Load: 24.5 t ADT: 11,100

JEFFERSON RD

Fair

Over: KELLER BRANCH

0.1 MI S OF PLEASANT RUN, Dallas, TX

Built 1960 Load: 24.5 t ADT: 1,038

Lancaster Hutchins

Fair

Over: Keller Branch

0.02 MI NE OF NOKOMIS RD, Dallas, TX

Built 1952 Load: 24.5 t ADT: 2,943

MAIN ST

Fair

Over: KELLER BRANCH

0.1 MI W OF SH 342, Dallas, TX

Built 1938 Load: 24.5 t ADT: 6,530

MAIN ST

Fair

Over: KELLER BRANCH

0.30 MI E OF DALLAS AVE, Dallas, TX

Built 1958 Load: 24.5 t ADT: 373

PLEASANT RUN RD

Fair

Over: TEN MILE CREEK TRIBUTARY

0.30 MI E OF IH 35E, Dallas, TX

Built 1972 Load: 24.5 t ADT: 4,150

PLEASANT RUN RD

Fair

Over: MILL BRANCH

0.10 MI E OF HOUSTON SCH, Dallas, TX

Built 1969 Load: 24.5 t ADT: 4,150

PLEASANT RUN RD EB

Fair

Over: DEEP BRANCH

0.30 MI E OF BLUEGROVE, Dallas, TX

Built 1969 Load: 24.5 t ADT: 2,075

PLEASANT RUN RD

Fair

Over: KELLER BRANCH

0.02 MI W OF JEFFERSON, Dallas, TX

Built 1950 Load: 24.5 t ADT: 6,427

PLEASANT RUN RD WB

Fair

Over: DEEP BRANCH

0.30 MI E OF BLUEGROVE, Dallas, TX

Built 1969 Load: 24.5 t ADT: 2,075

TELEPHONE RD

Fair

Over: NEWTON CREEK TRIB

0.1 MI W OF SH 342, Dallas, TX

Built 1979 Load: 24.5 t ADT: 1,000

WINTERGREEN RD

Fair

Over: DEEP BRANCH CREEK

0.10 MI SW OF AMES RD, Dallas, TX

Built 1940 Load: 24.5 t ADT: 510

BRUTON RD

Fair

Over: HICKORY CREEK

AT PEACHTREE INTERSECTION, Dallas, TX

Built 1930 Load: 24.5 t ADT: 10,300

HICKORY TREE RD

Fair

Over: HICKORY CREEK TRIB

0.45 MI S OF ELAM RD, Dallas, TX

Built 1958 Load: 24.5 t ADT: 1,983

LAKE JUNE RD

Fair

Over: HICKORY CREEK

1.00 MI W OF IH 635, Dallas, TX

Built 1951 Load: 24.5 t ADT: 11,150

Mercury Rd

Fair

Over: S Mesquite Creek Trib

0.50 MI NE of Belt Line, Dallas, TX

Built 1990 Load: 24.5 t ADT: 3,500

RYLIE-CREST DR

Fair

Over: HICKORY CREEK

0.2 MI EAST OF IH 635, Dallas, TX

Built 1994 Load: 24.5 t ADT: 1,475

SEAGOVILLE RD

Fair

Over: HICKORY CREEK TRIB

0.8 MI E OF IH 635, Dallas, TX

Built 1979 Load: 24.5 t ADT: 2,780

SEAGOVILLE RD

Fair

Over: HICKORY CREEK TRIB

0.3 MI E OF IH 635, Dallas, TX

Built 1986 Load: 24.5 t ADT: 5,827

OAKS NORTH DRIVE

Fair

Over: WHITE ROCK CREEK TRIB

0.1 MI S OF BELT LINE RD, Dallas, TX

Built 1979 Load: 24.5 t ADT: 285
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.