US Bridges

Loop 12 NB over Lawther DR

Fair

Dallas County, Texas · 0.30 MI S of Spur 244 · Structure no. 180570058101038

Built
1959
66 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
12,204
2023 count
Owner
State
State Highway Agency

About this bridge

Loop 12 NB over Lawther DR is a prestressed concrete stringer/multi-beam or girder carrying Loop 12 NB over Lawther DR in Dallas County, Texas. It was built in 1959, so it is 66 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 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 12,204 vehicles a day, roughly 5% of them trucks, projected to reach 15,910 by 2033. The structure is 100 ft (30.5 m) long and 41 ft wide.

Location

Open in Google Maps
CarriesLoop 12 NB
CrossesLawther DR
Location0.30 MI S of Spur 244
RouteState Highway 12
CountyDallas County
StateTexas
Coordinates32.85725, -96.71761
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
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 rating36 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadUnknown
Structure length100 ft (30.5 m)
Longest span40 ft (12.2 m)
Deck width41 ft (12.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,204 (2023)
Projected traffic15,910 by 2033
Trucks5%
Lanes on structure2
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 statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Loop 12 NB over Lawther DR built?

It was built in 1959, making it 66 years old in 2025.

What condition is Loop 12 NB over Lawther DR 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 Loop 12 NB over Lawther DR carry?

About 12,204 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Loop 12 NB over Lawther DR?

The structure is 100 ft (30.5 m) long with a longest span of 40 ft (12.2 m) and a deck 41 ft wide.

Who owns Loop 12 NB over Lawther DR?

It is owned by the State Highway Agency.