US Bridges

IH 30 EB Conn A-B over Louise & Dawson ST

Fair

Dallas County, Texas · 0.1 MI E of IH 45 · Structure no. 180570000911364

Built
1972
53 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
832 ft
9 main spans
Daily traffic
18,303
2022 count
Owner
State
State Highway Agency

About this bridge

IH 30 EB Conn A-B over Louise & Dawson ST is a steel continuous stringer/multi-beam or girder carrying IH 30 EB Conn A-B over Louise & Dawson ST in Dallas County, Texas. It was built in 1972, so it is 53 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 18,303 vehicles a day, roughly 6% of them trucks, projected to reach 19,000 by 2042. The structure is 832 ft (253.6 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIH 30 EB Conn A-B
CrossesLouise & Dawson ST
Location0.1 MI E of IH 45
RouteInterstate 30
CountyDallas County
StateTexas
Coordinates32.77666, -96.78386
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating59 US tons
Inventory rating34.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans9 (+3 approach)
Design loadHS 20
Structure length832 ft (253.6 m)
Longest span93 ft (28.3 m)
Deck width40 ft (12.1 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,303 (2022)
Projected traffic19,000 by 2042
Trucks6%
Lanes on structure2
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 30 EB Conn A-B over Louise & Dawson ST built?

It was built in 1972, making it 53 years old in 2025.

What condition is IH 30 EB Conn A-B over Louise & Dawson ST 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 April 2024.

How much traffic does IH 30 EB Conn A-B over Louise & Dawson ST carry?

About 18,303 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is IH 30 EB Conn A-B over Louise & Dawson ST?

The structure is 832 ft (253.6 m) long with a longest span of 93 ft (28.3 m) and a deck 40 ft wide.

Who owns IH 30 EB Conn A-B over Louise & Dawson ST?

It is owned by the State Highway Agency.