US Bridges

Loop 12 over IH 30

Fair

Dallas County, Texas · At Loop 12 Interchange · Structure no. 180570000911345

Built
1977
48 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
1,248 ft
3 main spans
Daily traffic
22,343
2023 count
Owner
State
State Highway Agency

About this bridge

Loop 12 over IH 30 is a prestressed concrete continuous stringer/multi-beam or girder carrying Loop 12 over IH 30 in Dallas County, Texas. It was built in 1977, so it is 48 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 5 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 22,343 vehicles a day, roughly 3% of them trucks, projected to reach 51,633 by 2040. The structure is 1,248 ft (380.4 m) long and 106 ft wide.

Location

Open in Google Maps
CarriesLoop 12
CrossesIH 30
LocationAt Loop 12 Interchange
RouteState Highway 12
CountyDallas County
StateTexas
Coordinates32.79836, -96.6827
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
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 Continuous
DeckConcrete, cast-in-place
Main spans3 (+12 approach)
Design loadHS 20
Structure length1,248 ft (380.4 m)
Longest span145 ft (44.2 m)
Deck width106 ft (32.3 m)
Roadway width90 ft (27.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,343 (2023)
Projected traffic51,633 by 2040
Trucks3%
Lanes on structure6
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$281,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Loop 12 over IH 30 built?

It was built in 1977, making it 48 years old in 2025.

What condition is Loop 12 over IH 30 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 November 2023.

How much traffic does Loop 12 over IH 30 carry?

About 22,343 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Loop 12 over IH 30?

The structure is 1,248 ft (380.4 m) long with a longest span of 145 ft (44.2 m) and a deck 106 ft wide.

Who owns Loop 12 over IH 30?

It is owned by the State Highway Agency.