US Bridges

Dallas N Tlwy SB over Harry Hines Blvd NB

Fair

Dallas County, Texas · 0.2 MI S of Oak Lawn Ave · Structure no. 1805709D0470018

Built
1966
59 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
452 ft
2 main spans
Daily traffic
29,492
2022 count
Owner
Toll Authority
Local Toll Authority

About this bridge

Dallas N Tlwy SB over Harry Hines Blvd NB is a steel continuous stringer/multi-beam or girder carrying Dallas N Tlwy SB over Harry Hines Blvd NB in Dallas County, Texas. It was built in 1966, so it is 59 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 5 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 29,492 vehicles a day, projected to reach 9,440 by 2027. The structure is 452 ft (137.8 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesDallas N Tlwy SB
CrossesHarry Hines Blvd NB
Location0.2 MI S of Oak Lawn Ave
CountyDallas County
StateTexas
Coordinates32.79857, -96.81475
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length452 ft (137.8 m)
Longest span140 ft (42.7 m)
Deck width40 ft (12.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deck16 ft (4.8 m)

Traffic and service

Average daily traffic29,492 (2022)
Projected traffic9,440 by 2027
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$40,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Dallas N Tlwy SB over Harry Hines Blvd NB built?

It was built in 1966, making it 59 years old in 2025.

What condition is Dallas N Tlwy SB over Harry Hines Blvd NB 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 May 2023.

How much traffic does Dallas N Tlwy SB over Harry Hines Blvd NB carry?

About 29,492 vehicles per day (2022 count).

How long is Dallas N Tlwy SB over Harry Hines Blvd NB?

The structure is 452 ft (137.8 m) long with a longest span of 140 ft (42.7 m) and a deck 40 ft wide.

Who owns Dallas N Tlwy SB over Harry Hines Blvd NB?

It is owned by the Local Toll Authority.