US Bridges

Spur 366 Line D over Ross Ave & US 75 SB FR

Fair

Dallas County, Texas · US 75 & SP 366 Intrchange · Structure no. 180570004707243

Built
1983
42 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,250 ft
3 main spans
Daily traffic
35,063
2022 count
Owner
State
State Highway Agency

About this bridge

Spur 366 Line D over Ross Ave & US 75 SB FR is a steel continuous stringer/multi-beam or girder carrying Spur 366 Line D over Ross Ave & US 75 SB FR in Dallas County, Texas. It was built in 1983, so it is 42 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 35,063 vehicles a day, roughly 2% of them trucks, projected to reach 49,000 by 2042. The structure is 1,250 ft (381 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSpur 366 Line D
CrossesRoss Ave & US 75 SB FR
LocationUS 75 & SP 366 Intrchange
RouteState Highway 366
CountyDallas County
StateTexas
Coordinates32.79172, -96.79278
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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being 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 spans3 (+10 approach)
Design loadHS 20
Structure length1,250 ft (381 m)
Longest span172 ft (52.4 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,063 (2022)
Projected traffic49,000 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Line D over Ross Ave & US 75 SB FR built?

It was built in 1983, making it 42 years old in 2025.

What condition is Spur 366 Line D over Ross Ave & US 75 SB FR 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 2024.

How much traffic does Spur 366 Line D over Ross Ave & US 75 SB FR carry?

About 35,063 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Spur 366 Line D over Ross Ave & US 75 SB FR?

The structure is 1,250 ft (381 m) long with a longest span of 172 ft (52.4 m) and a deck 34 ft wide.

Who owns Spur 366 Line D over Ross Ave & US 75 SB FR?

It is owned by the State Highway Agency.