US Bridges

Big Town Blvd. SB over IH 30

Good

Dallas County, Texas · 0.9 MI NE of Lp 12 · Structure no. 180570000911373

Built
1960
65 years old, rebuilt 2008
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
300 ft
4 main spans
Daily traffic
20,281
2019 count
Owner
State
State Highway Agency

About this bridge

Big Town Blvd. SB over IH 30 is a steel stringer/multi-beam or girder carrying Big Town Blvd. SB over IH 30 in Dallas County, Texas. It was built in 1960 and reconstructed in 2008, so it is 65 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20,281 vehicles a day, roughly 3% of them trucks, projected to reach 14,197 by 2042. The structure is 300 ft (91.4 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesBig Town Blvd. SB
CrossesIH 30
Location0.9 MI NE of Lp 12
RouteCity Street 114
CountyDallas County
StateTexas
Coordinates32.80378, -96.66811
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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 typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4 (+2 approach)
Design loadHL 93
Structure length300 ft (91.4 m)
Longest span65 ft (19.8 m)
Deck width29 ft (8.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,281 (2019)
Projected traffic14,197 by 2042
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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$16,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Big Town Blvd. SB over IH 30 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2008.

What condition is Big Town Blvd. SB over IH 30 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does Big Town Blvd. SB over IH 30 carry?

About 20,281 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is Big Town Blvd. SB over IH 30?

The structure is 300 ft (91.4 m) long with a longest span of 65 ft (19.8 m) and a deck 29 ft wide.

Who owns Big Town Blvd. SB over IH 30?

It is owned by the State Highway Agency.