US Bridges

SH 78 NB over Turnarounds / Old RR Bed

Fair

Dallas County, Texas · 1.45 MI NE of IH 30 · Structure no. 180570000902303

Built
1967
58 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
316 ft
5 main spans
Daily traffic
9,965
2022 count
Owner
State
State Highway Agency

About this bridge

SH 78 NB over Turnarounds / Old RR Bed is a prestressed concrete stringer/multi-beam or girder carrying SH 78 NB over Turnarounds / Old RR Bed in Dallas County, Texas. It was built in 1967, so it is 58 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 9,965 vehicles a day, roughly 7% of them trucks, projected to reach 47,300 by 2033. The structure is 316 ft (96.3 m) long and 51 ft wide.

Location

Open in Google Maps
CarriesSH 78 NB
CrossesTurnarounds / Old RR Bed
Location1.45 MI NE of IH 30
RouteState Highway 78
CountyDallas County
StateTexas
Coordinates32.80666, -96.73302
Functional classUrban Other Principal Arterial

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 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 rating68 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length316 ft (96.3 m)
Longest span65 ft (19.8 m)
Deck width51 ft (15.6 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,965 (2022)
Projected traffic47,300 by 2033
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 SH 78 NB over Turnarounds / Old RR Bed built?

It was built in 1967, making it 58 years old in 2025.

What condition is SH 78 NB over Turnarounds / Old RR Bed 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 December 2023.

How much traffic does SH 78 NB over Turnarounds / Old RR Bed carry?

About 9,965 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is SH 78 NB over Turnarounds / Old RR Bed?

The structure is 316 ft (96.3 m) long with a longest span of 65 ft (19.8 m) and a deck 51 ft wide.

Who owns SH 78 NB over Turnarounds / Old RR Bed?

It is owned by the State Highway Agency.