US Bridges

Lp 12 NB over Singleton Blvd

Fair

Dallas County, Texas · 0.85 MI N of IH 30 · Structure no. 180570058102072

Built
1976
49 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
210 ft
4 main spans
Daily traffic
57,230
2019 count
Owner
State
State Highway Agency

About this bridge

Lp 12 NB over Singleton Blvd is a prestressed concrete stringer/multi-beam or girder carrying Lp 12 NB over Singleton Blvd in Dallas County, Texas. It was built in 1976, so it is 49 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 57,230 vehicles a day, roughly 7% of them trucks, projected to reach 75,230 by 2033. The structure is 210 ft (64 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLp 12 NB
CrossesSingleton Blvd
Location0.85 MI N of IH 30
RouteState Highway 12
CountyDallas County
StateTexas
Coordinates32.77859, -96.91689
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be 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
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length210 ft (64 m)
Longest span55 ft (16.8 m)
Deck width62 ft (19 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57,230 (2019)
Projected traffic75,230 by 2033
Trucks7%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lp 12 NB over Singleton Blvd built?

It was built in 1976, making it 49 years old in 2025.

What condition is Lp 12 NB over Singleton Blvd 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 Lp 12 NB over Singleton Blvd carry?

About 57,230 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is Lp 12 NB over Singleton Blvd?

The structure is 210 ft (64 m) long with a longest span of 55 ft (16.8 m) and a deck 62 ft wide.

Who owns Lp 12 NB over Singleton Blvd?

It is owned by the State Highway Agency.