US Bridges

Loop 12 over Dixon Branch

Fair

Dallas County, Texas · 0.4 MI NW of SH 78 · Structure no. 180570058101001

Built
1969
56 years old, rebuilt 1970
Condition
Fair
inspected December 2023
Type
Tee Beam
Concrete
Length
75 ft
3 main spans
Daily traffic
38,419
2022 count
Owner
State
State Highway Agency

About this bridge

Loop 12 over Dixon Branch is a concrete tee beam carrying Loop 12 over Dixon Branch in Dallas County, Texas. It was built in 1969 and reconstructed in 1970, so it is 56 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 38,419 vehicles a day, roughly 3% of them trucks, projected to reach 47,183 by 2040. The structure is 75 ft (22.9 m) long and 88 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLoop 12
CrossesDixon Branch
Location0.4 MI NW of SH 78
RouteState Highway 12
CountyDallas County
StateTexas
Coordinates32.83849, -96.70615
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating26 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length75 ft (22.9 m)
Longest span25 ft (7.6 m)
Deck width88 ft (26.7 m)
Roadway width82 ft (25 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,419 (2022)
Projected traffic47,183 by 2040
Trucks3%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Loop 12 over Dixon Branch built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1970.

What condition is Loop 12 over Dixon Branch 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 over Dixon Branch carry?

About 38,419 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Loop 12 over Dixon Branch?

The structure is 75 ft (22.9 m) long with a longest span of 25 ft (7.6 m) and a deck 88 ft wide.

Who owns Loop 12 over Dixon Branch?

It is owned by the State Highway Agency.