US Bridges

Lp 12 NB over UP RR

Fair

Dallas County, Texas · 1.6 MI S of IH 30 · Structure no. 180570058101005

Built
1997
28 years old
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
719 ft
1 main span
Daily traffic
20,805
2022 count
Owner
State
State Highway Agency

About this bridge

Lp 12 NB over UP RR is a prestressed concrete box beam or girders - multiple carrying Lp 12 NB over UP RR in Dallas County, Texas. It was built in 1997, so it is 28 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 20,805 vehicles a day, roughly 6% of them trucks, projected to reach 46,040 by 2036. The structure is 719 ft (219.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLp 12 NB
CrossesUP RR
Location1.6 MI S of IH 30
RouteState Highway 12
CountyDallas County
StateTexas
Coordinates32.77637, -96.68264
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+9 approach)
Design loadHS 20
Structure length719 ft (219.2 m)
Longest span77 ft (23.5 m)
Deck width43 ft (13.1 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,805 (2022)
Projected traffic46,040 by 2036
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$63,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lp 12 NB over UP RR built?

It was built in 1997, making it 28 years old in 2025.

What condition is Lp 12 NB over UP RR 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 Lp 12 NB over UP RR carry?

About 20,805 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Lp 12 NB over UP RR?

The structure is 719 ft (219.2 m) long with a longest span of 77 ft (23.5 m) and a deck 43 ft wide.

Who owns Lp 12 NB over UP RR?

It is owned by the State Highway Agency.