US Bridges

Spur 366 EB over IH 35E & Dart Railway

Fair

Dallas County, Texas · At Spur 366 Interchange · Structure no. 180570019603215

Built
1981
44 years old, rebuilt 2010
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
3,242 ft
28 main spans
Daily traffic
35,495
2022 count
Owner
State
State Highway Agency

About this bridge

Spur 366 EB over IH 35E & Dart Railway is a prestressed concrete stringer/multi-beam or girder carrying Spur 366 EB over IH 35E & Dart Railway in Dallas County, Texas. It was built in 1981 and reconstructed in 2010, so it is 44 years old, younger 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 35,495 vehicles a day, roughly 3% of them trucks, projected to reach 49,693 by 2042. The structure is 3,242 ft (988.2 m) long and 70 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSpur 366 EB
CrossesIH 35E & Dart Railway
LocationAt Spur 366 Interchange
RouteState Highway 366
CountyDallas County
StateTexas
Coordinates32.78191, -96.81289
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans28 (+3 approach)
Design loadHS 20
Structure length3,242 ft (988.2 m)
Longest span146 ft (44.5 m)
Deck width70 ft (21.4 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deck23 ft (6.9 m)

Traffic and service

Average daily traffic35,495 (2022)
Projected traffic49,693 by 2042
Trucks3%
Lanes on structure4
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Spur 366 EB over IH 35E & Dart Railway built?

It was built in 1981, making it 44 years old in 2025. It was reconstructed in 2010.

What condition is Spur 366 EB over IH 35E & Dart Railway 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 Spur 366 EB over IH 35E & Dart Railway carry?

About 35,495 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Spur 366 EB over IH 35E & Dart Railway?

The structure is 3,242 ft (988.2 m) long with a longest span of 146 ft (44.5 m) and a deck 70 ft wide.

Who owns Spur 366 EB over IH 35E & Dart Railway?

It is owned by the State Highway Agency.