US Bridges

SH 78 NB over Rowlett Creek

Fair

Dallas County, Texas · 0.7 MI N of SH 190 · Structure no. 180570028103044

Built
1995
30 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
510 ft
4 main spans
Daily traffic
16,966
2023 count
Owner
State
State Highway Agency

About this bridge

SH 78 NB over Rowlett Creek is a prestressed concrete stringer/multi-beam or girder carrying SH 78 NB over Rowlett Creek in Dallas County, Texas. It was built in 1995, so it is 30 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 16,966 vehicles a day, roughly 19% of them trucks, projected to reach 31,010 by 2033. The structure is 510 ft (155.4 m) long and 56 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSH 78 NB
CrossesRowlett Creek
Location0.7 MI N of SH 190
RouteState Highway 78
CountyDallas County
StateTexas
Coordinates32.96006, -96.61435
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable 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 spans4 (+1 approach)
Design loadHS 20
Structure length510 ft (155.4 m)
Longest span120 ft (36.6 m)
Deck width56 ft (17.2 m)
Roadway width48 ft (14.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,966 (2023)
Projected traffic31,010 by 2033
Trucks19%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 78 NB over Rowlett Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is SH 78 NB over Rowlett Creek 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 January 2024.

How much traffic does SH 78 NB over Rowlett Creek carry?

About 16,966 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is SH 78 NB over Rowlett Creek?

The structure is 510 ft (155.4 m) long with a longest span of 120 ft (36.6 m) and a deck 56 ft wide.

Who owns SH 78 NB over Rowlett Creek?

It is owned by the State Highway Agency.