US Bridges

IH 20 Wbml over IH 45

Fair

Dallas County, Texas · At Int IH 20 & IH 45 · Structure no. 180570237403307

Built
1973
52 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
330 ft
2 main spans
Daily traffic
69,471
2023 count
Owner
State
State Highway Agency

About this bridge

IH 20 Wbml over IH 45 is a steel continuous stringer/multi-beam or girder carrying IH 20 Wbml over IH 45 in Dallas County, Texas. It was built in 1973, so it is 52 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 69,471 vehicles a day, roughly 19% of them trucks, projected to reach 85,503 by 2040. The structure is 330 ft (100.6 m) long and 70 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIH 20 Wbml
CrossesIH 45
LocationAt Int IH 20 & IH 45
RouteInterstate 20
CountyDallas County
StateTexas
Coordinates32.66192, -96.72667
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length330 ft (100.6 m)
Longest span95 ft (29 m)
Deck width70 ft (21.3 m)
Roadway width59 ft (18.1 m)
Vertical clearance over deck16 ft (5 m)

Traffic and service

Average daily traffic69,471 (2023)
Projected traffic85,503 by 2040
Trucks19%
Lanes on structure4
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 20 Wbml over IH 45 built?

It was built in 1973, making it 52 years old in 2025.

What condition is IH 20 Wbml over IH 45 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does IH 20 Wbml over IH 45 carry?

About 69,471 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is IH 20 Wbml over IH 45?

The structure is 330 ft (100.6 m) long with a longest span of 95 ft (29 m) and a deck 70 ft wide.

Who owns IH 20 Wbml over IH 45?

It is owned by the State Highway Agency.