US Bridges

Lp 12 over Lisbon Creek

Fair

Dallas County, Texas · 0.25 MI W of SH 342 · Structure no. 180570058101004

Built
1930
95 years old, rebuilt 1963
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
50 ft
2 main spans
Daily traffic
28,165
2020 count
Owner
State
State Highway Agency

About this bridge

Lp 12 over Lisbon Creek is a concrete tee beam carrying Lp 12 over Lisbon Creek in Dallas County, Texas. It was built in 1930 and reconstructed in 1963, so it is 95 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 28,165 vehicles a day, roughly 4% of them trucks, projected to reach 39,431 by 2040. The structure is 50 ft (15.2 m) long and 94 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesLp 12
CrossesLisbon Creek
Location0.25 MI W of SH 342
RouteState Highway 12
CountyDallas County
StateTexas
Coordinates32.68506, -96.79434
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span25 ft (7.6 m)
Deck width94 ft (28.5 m)
Roadway width76 ft (23.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,165 (2020)
Projected traffic39,431 by 2040
Trucks4%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$10,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Lp 12 over Lisbon Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1963.

What condition is Lp 12 over Lisbon 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 May 2024.

How much traffic does Lp 12 over Lisbon Creek carry?

About 28,165 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Lp 12 over Lisbon Creek?

The structure is 50 ft (15.2 m) long with a longest span of 25 ft (7.6 m) and a deck 94 ft wide.

Who owns Lp 12 over Lisbon Creek?

It is owned by the State Highway Agency.